Lead Screws Ball And Splines
Lead-Screws-Ball-Screws-and-Ball-Splines Lead-Screws-Ball-Screws-and-Ball-Splines
User Manual: Lead-Screws-Ball-Screws-and-Ball-Splines
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Lead Screws, Ball Screws
and Ball Splines
www.thomsonlinear.com
Thomson – the Choice for Optimized Motion Solutions
Often the ideal design solution is not about finding the fastest, sturdiest, most accurate or
even the least expensive option. Rather, the ideal solution is the optimal balance of performance, life and cost.
The Best Positioned Supplier of Mechanical Motion Technology
Thomson has several advantages that make us the supplier of choice for motion control technology.
• Thomson provides the broadest standard product offering of mechanical motion technologies in the industry.
• Modified versions of standard product or white sheet design solutions are routine for us.
• Choose Thomson and gain access to over 70 years of global application experience in industries including packaging, factory automation, material handling, medical, clean energy, printing, automotive, machine tool, aerospace and defense.
• As part of Danaher Corporation, we are financially strong and unique in our ability to bring together control, drive, motor, power transmission and precision linear motion technologies.
A Name You Can Trust
A wealth of product and application information as well as 3D models, software tools, our distributor locator and global contact information
is available at www.thomsonlinear.com. For assistance, contact your local sales office (contact information listed on the back of catalog).
Talk to us early in the design process to see how Thomson can help identify the optimal balance of performance, life and cost for your next
application. And, call us or any of our 2000+ distribution partners around the world for fast delivery of replacement parts.
The Danaher Business System
The Danaher Business System (DBS) was established to increase the value we bring to customers. It is a mature and successful set of
tools we use daily to continually improve manufacturing operations and product development processes. DBS is based on the principles
of Kaizen which continuously and aggressively eliminate waste in every aspect of our business. DBS focuses the entire organization on
achieving breakthrough results that create competitive advantages in quality, delivery and performance – advantages that are passed on to
you. Through these advantages Thomson is able to provide you faster times to market as well as unsurpassed product selection, service,
reliability and productivity.
Local Support Around the Globe
Application Centers
Global Manufacturing Operations
Global Design & Engineering Centers
Lead Screws, Ball Screws and Ball Splines
A World Class Heritage Serves as Our Foundation
The very best of the Thomson, Warner, BSA and Neff ball and lead screw lines are now combined to form the most complete
product offering in the industry
Thomson has a long history of manufacturing quality lead screws and ball screws. Our roots are planted in four separate companies that held
strong and definitive footholds in the market. Those companies — Ball Screws & Actuators Co, Warner Linear, Thomson Industries, and Neff
Automation — now form the nucleus of the Thomson ball screw and lead screw business.
Founded in 1971, the Ball Screws & Actuators Co. (BSA) was a pioneer and leader in precision plastic nut, lead screw and ball screw
technologies for linear motion applications. Their custom and off-the-shelf solutions featured many patented products, including their
ActiveCAM technology for eliminating backlash while increasing performance and wear life. BSA joined Danaher Motion in 1996 and brought a
wealth of experience and knowledge to the ball and lead screw team.
Tollo Linear was founded in 1982 and manufactured linear actuators, linear drive units and handling components under a variety of trademarked
product names. Its products were sold to direct customers, OEM manufacturers, and system houses throughout the world. In 1989, Tollo Linear
was purchased by Warner Electric and the new division became known as Warner Linear. After substantial growth in the industry, Warner
Linear, including its superior ball screw product line, was acquired by Danaher Motion in 2000.
Thomson Industries was the leading U.S. producer of linear motion control products, including linear actuators, ball screws, linear bearings
and rails, and precision gearboxes. Its products were found in a range of precision motion applications in the medical, industrial, aerospace
and mobile off-highway markets. In October 2002, Danaher Motion acquired Thomson Industries and retained the strong Thomson brand name.
Neff Automation was founded in 1905 and has since been a leading manufacturer of industrial products for linear motion applications. In the
past four decades Neff has become a market leader in high precision rolled ball screws, providing solutions for customers all across the globe.
In 2004 Neff Automation joined Danaher Motion, bringing high quality products, manufacturing expertise, and deep application knowledge to
the ball and lead screw team.
The current lead screw and ball screw offerings of Danaher Motion combine the quality, strength and expertise of the distinct products and
professionals at these four companies under the Thomson name. The products set the solid foundation for the broad range of standard and
custom lead and ball screws available today. If past history and experience is an indication of what the future holds, Thomson is significantly
poised to remain a prominent leader and pioneer in the ball screw and lead screw industry.
Ball Screws and Actuators (BSA)
Warner Linear Ball Screws
Thomson Industries
Neff Automation
www.thomsonlinear.com
Thomson BSA Lead Screws & Supernuts
Precision Rolled Ball Screws — Inch Series
Precision Plus Ball Screws — Inch & Metric Series
Miniature Rolled Ball Screws — Metric Series
Thomson NEFF Rolled Ball Screws — Metric Series
Precision Rolled Ball Splines — Inch Series
3
Company Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3
Product Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5
Request for Quote. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
Application Analysis Worksheet. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7
Technology Comparison . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
Lead Screws
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Advanced Anti-Backlash Supernuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flange Mount Supernuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thread Mount Supernuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thread Mount Bronze Nuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Standard Mounting Flanges . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stainless Steel Lead Screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
V-Thread Screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
12
15
26
29
32
34
35
38
Ball Screws — Inch Series
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42
Precision Rolled Ball Screws — Inch Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46
Visual Product Reference — Precision Rolled Ball Screws — Inch Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91
Precision Plus Ball Screws — Inch Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101
Ball Screws — Metric Series
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Miniature Rolled Ball Screws — Metric Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Thomson NEFF Rolled Ball Screws — Metric Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precision Plus Ball Screws — Metric Series . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
106
113
119
135
Ball Splines
Precision Rolled Ball Splines — Inch Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 139
Bearing Supports/End Machining
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 144
Quick Install Assemblies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 147
Bearing Supports/End Machining . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 154
Engineering
Lead Screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ball Screws — Inch Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ball Screws — Metric Series. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Ball Splines. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Maintenance and Service. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Glossary/Formulas. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
181
189
203
213
217
226
233
234
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Product Overview
Lead Screws
THOMSON BSA PRECISION LEAD SCREWS AND SUPERNUTS®
Offering smooth, precise, cost effective positioning, this is the “just right” solution for your application.
Ball Screws - Inch Series
Thomson BSA precision lead screws are an excellent economical solution for your linear motion
requirements. For more than 30 years, Thomson BSA has designed and manufactured the highest quality
lead screw assemblies in the industry. Our precision rolling machines ensure accurate positioning to 0.003 in/
ft and our PTFE coating process produces assemblies that have less drag torque and last longer. All of our
standard plastic nut assemblies use an internally lubricated Acetal — providing excellent lubricity and wear
resistance with or without additional lubrication. With the introduction of our new unique patent pending zero
backlash designs, Thomson BSA provides assemblies with high axial stiffness, zero backlash and the absolute
minimum drag torque to reduce motor requirements. These designs produce products that cost less, perform
better and last longer. Both designs automatically adjust for wear insuring zero backlash for the life of the nut.
For significantly higher loads, standard bronze nuts are available.
THOMSON BALL SCREWS — INCH SERIES
Ball Screws - Metric Series
The most comprehensive imperial-based ball screw product offering in the industry.
Thomson is the market leader in inch-dimensioned ball screws, featuring the very best of the ball screw
product offerings of BSA, Warner Linear, and Thomson Industries, integrated into a single, comprehensive
product offering. Our Precision Rolled Ball Screws come in a full range of diameters, leads, and ball nut
configurations, in either preloaded or non-preloaded types, all in industry-standard envelopes. They provide
dependable accuracy and repeatability at an economical price. Thomson also offers inch-based Precision
Plus Ball Screws, which provide higher-level precision for immediate improvement in machine performance.
All Thomson ball screws feature a Gothic arch ball groove geometry that extends service life, reduces
lash, and optimizes stiffness in preloaded assemblies. This unique design feature also eliminates skidding,
increases positioning accuracy, and maximizes travel life.
Ball Splines
THOMSON BALL SCREWS — METRIC SERIES
Superior performance for today’s most stringent positioning requirements.
Bearing Supports/
End Machining
Thomson offers a full range of internal return metric ball screw products, featuring four distinct product
families. Miniature Rolled Ball Screw Assemblies are an efficient, cost-effective solution in a small
envelope. Ball screw assemblies range from 4mm to 14mm in diameter, with standard lead accuracies of
52 microns/300mm. Thomson NEFF Rolled Ball Screw Assemblies are designed and manufactured to
provide high level performance at an affordable price. Ball screws are manufactured using Thomson’s
patented, German-engineered Precision Screw Forming (PSF) Technology, which provides high accuracy
(23 microns/300mm standard) with the manufacturing efficiency of rolled processes. Thomson NEFF Rolled
Ball Screw Assemblies are available in a wide range of diameters, leads and nut styles — all designed
to provide quiet, smooth running, efficient performance. Ball nuts include one of three unique ball return
systems providing perfect guidance, low wear, and smooth running performance. Precision Plus Ball Screw
Assemblies are our highest precision product, with standard lead accuracies of 12 microns/300mm. These
ball screw assemblies feature our FL-style ball nut, designed to provide high repeatability and high stiffness
for the most demanding ball screw applications.
THOMSON PRECISION BALL SPLINES
Engineering
High reliability, speed, and versatility for tough applications with torque loads.
Thomson precision ball splines provide high speed, anti-friction linear motion under high torsional loads.
They have high reliability under varying operating conditions and predictable life expectancy. They resist
radial displacement resulting from torque loads, and require smaller forces to achieve axial displacement of
the spline member while transmitting torque. Ball splines have application versatility such as helicopter rotor
couplings; translating drive shaft couplings, non-swiveling telescoping struts; honing machine and drill press
spindles, workhead and table ways, and remote and robot handling machines.
www.thomsonlinear.com
5
Date: _______ / _______ / __________
Request for Quote
Use this form if you have already selected a product. We will respond within four hours.
1. Information
Name
Title/Dept.
Company Name
Address
Phone
Fax
Email
Note: If this product or assembly has been quoted or ordered before, please provide the quote number or order number.
Quote No.
Order No.
2. Screw and Nut Part Numbers
0.004”/ft
Qty.
Lead Error
Diameter
Lead
Screw P/N
Overall Length*
Ball Nut P/N
Flange P/N
0.005”/ft
50µ/300mm
23µ/300mm
12µ/300mm
Wiper P/N
3. Bearing Supports
Right End
None
Floating
Quick Mount
Left End
None
Floating
Quick Mount
4. End Machining*
Right End
Left End
BK
BF
FK
FF
QK
QF
Cut to Length Only
BK1
BF1
FK1
FF1
QK1
QF1
Annealed ____________ (specify length annealed)
BK
BF
FK
FF
QK
QF
Cut to Length Only
BK1
BF1
FK1
FF1
QK1
QF1
Annealed ____________ (specify length annealed)
5. Configuration*
Ball Nut (V-Thread/Flange) Facing Left End
Ball Nut (V-Thread/Flange) Facing Right End
Modified Flange (Attach Print)
* Customer print will take precedence if provided.
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
6
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Date: _______ / _______ / __________
Application Data Sheet
Use this form if you need assistance selecting a product. We will respond within four hours.
1. Information
Name
Title/Dept.
Company Name
Address
Phone
Fax
Email
2. Application Requirements
What is your LOAD?
What is your MOTION?
lbs
kg
N
Other (please specify)
Vertical
Horizontal
Other (please specify)
What is your length of
STROKE?
inch
foot
mm
Other (please specify)
What is your required
TRAVEL LIFE?
inch
foot
mm
Other (please specify)
inch
minute
mm
What is your SPEED?
PER
foot
Accuracy Requirements
Backlash Requirements
Bearing Supports?
Motor Cube Required?
Other (please specify)
0.004”/ft
0.005”/ft
52µ/300mm
23µ/300mm
12µ/300mm
0.000”
0.002”
0.010”
0.05mm
0.2mm
Fixed/Fixed
Fixed/Free
second
Other (please specify)
Other (please specify)
Fixed/Simple
Other (please specify)
NEMA 17
NEMA 23
NEMA 42
NEMA 34
Quantity Required?
Other (please specify)
per Week
per Month
per Year
Other (please specify)
Additional Information/Comments
www.thomsonlinear.com
7
Technology Comparison
Thomson Ball Screws and Lead Screws Are Your Best Choice for Linear Actuation
Thomson ball screws outperform other actuation methods.
Compared to bulky, noisy, and expensive hydraulic or pneumatic
actuator systems, Thomson ball screws and lead screws are
compact, quiet, and very affordable. In addition, there’s no need for
pumps, hoses, fluids, or shop air. This eliminates fire, safety, and
health hazards due to leaking fluid or other contaminants typically
associated with these types of actuation methods.
Belt, cable, and chain-drive mechanisms are relatively inexpensive.
However, they aren’t as precise, repeatable, or as safe to use as ball
screws and lead screws. Their failure mode is either excessive wear
or stretching, resulting in positioning inaccuracies during operation.
These types of systems also have low load capacities.
Rack and pinion gear systems can be made to close tolerances,
but lose precision as they wear and don’t function as smoothly as
ball screws, even when new. Because the force is supported by a
few pinion teeth at any given time, the system also is limited in terms
of load capacity.
Offset cam rollers rely on the tractive force between the rollers and
the shaft to create linear motion, and therefore can handle only
moderate loads. The higher the load, the more likely it is that the
system will slip, reducing repeatability.
In summary, when compared to other types of mechanical actuation
methods, Thomson ball screws and lead screws provide the
most cost-effective combination of speed, accuracy, efficiency,
repeatability, quiet operation, lubrication retention, load capacity,
and compactness.
Thomson precision ball screw and lead screw assemblies are the
first choice in precise, reliable, cost-effective linear actuation.
Thomson lead screws excel in applications which require the
“just right” solution. They are easily customized to provide compact,
quiet and accurate positioning in light to medium load applications.
Materials are inert as a standard and allow use in applications
ranging from clean room to marine. Best of all, the value is high
as you don’t pay for processes and features not required in your
application.
Let Thomson engineer your positioning screw today.
Ball and Lead Screw vs. Other Actuation Methods
Thomson
Lead Screws
Thomson
Ball Screws
Fluid Power
Belt, Cable, and
Chain-Drive
Mechanisms
Rack & Pinion
Offset
Cam Rollers
Pneumatic
Cylinders
Inexpensive
Low Power Consumption
Low Maintenance
High Accuracy
High Repeatability
High Efficiency
High Load Capacity
Compact Size
Speed
Low Noise
Design Flexibility
Contamination Tolerance
= always
= in most cases
8
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Technology Comparison
Design Considerations for Choosing Screw Type
Thomson Lead Screw
Thomson Ball Screw
Load
Typically light (<100 lbs.)
Usually heavy (>100 lbs.)
Cost
Low cost $$
Higher cost $$$
Available — but has low stiffness
Available
Yes — but depends on lead and lubrication
Fail safe brake locking option
Efficiency
Generally ranges from 30% to 70%
Generally ranges from 85% to 95%
Duty Cycle
Limited to plastic heat transfer properties
Unlimited
Available in stainless steel
as a standard
Wide range of available sizes
in stainless steel, as well as
coating and plating options
Can operate with or without
lubrication depending on application
Must have lubrication
Wide range of lubricants
Operating Temperature
Limited to expansion differences
between the screw and the nut
Wide temperature range
Travel Speed
Available in wide range of leads
Typically mid-range leads
Vibration and Noise
Typically quiet,
high leads are best
Ball re-circulation
Custom Availability
Great flexibility in customizing
materials and geometry
Great flexibility in customizing
materials and geometry —
limited by ball path envelope
11
40
Design Considerations
Anti-backlash
Self-locking
Corrosion Resistance
Lubrication
Catalog Page
www.thomsonlinear.com
9
NOTES:
10
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Lead Screws
Table of Contents
DescriptionPage
Product Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
Glide Screws . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
Advanced Anti-Backlash Supernuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
Flange Mount Supernuts . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 800-882-8857
Email:
thomsonbsa@thomsonlinear.com
Web:
www.thomsonbsa.com
Thread Mount Supernuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
Thread Mount Bronze Nuts. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Standard Mounting Flanges. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
Stainless Steel Lead Screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36
V-Thread Screws. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 39
www.thomsonlinear.com
11
Lead Screws Product Overview
Offering smooth, precise, cost effective positioning, this is the “just right” solution for your application.
Thomson BSA precision lead screws are an excellent economical solution for your linear motion requirements. For more than 25 years,
Thomson BSA has designed and manufactured the highest quality lead screw assemblies in the industry. Our precision rolling machines ensure
accurate positioning to 0.003 in/ft and our PTFE coating process produces assemblies that have less drag torque and last longer.
Thomson BSA provides a large array of standard plastic nut
assemblies in anti-backlash or standard Supernut® designs. All of our
standard plastic nut assemblies use an internally lubricated Acetal
— providing excellent lubricity and wear resistance with or without
additional lubrication. With the introduction of our new unique patent
pending zero backlash designs, Thomson BSA provides assemblies
with high axial stiffness, zero backlash and the absolute minimum
drag torque to reduce motor requirements. These designs produce
products that cost less, perform better and last longer. Both designs
automatically adjust for wear, insuring zero backlash for the life of
the nut.
For significantly higher loads, standard bronze nuts are available.
Thomson BSA uses SAE 660 bearing bronze, which provides
high load capacity with good PV performance. We also offer
end machining to your specification or can provide you with
stock bearing mounts or motor mounts. Available from over 1800
distributors worldwide.
Thomson BSA also provides engineering design services to aid in
your design requirements, producing a lead screw assembly to your
specifications. Call the factory today to discuss your application with
one of our experienced application engineers, 800-882-8857.
Glide Screw Overview
What is a Glide Screw™? Part linear bearing, part lead screw; a combination of two favorites to create something
better than both. The patent-pending Glide Screw™ brings high performance, fast installation and less complexity in a
small package. The Glide Screw™ combines the features of a linear bearing and a lead screw in one smooth operating
package. Inch and metric sizes are standard. Custom sizes are also available quickly and to your specification.
Standard Sizes and Configurations Stocked for Immediate Availability!
• Metric Series includes 4, 6 and 10 mm nominal diameters
• Inch Series includes 3/16”, 1/4” and 3/8” nominal diameters
• Flanged and cylindrical nut bodies standard
Optional Configurations for Harsh Environments Available
• High temperature resistant – inside ovens or autoclaves (up to
175 °C)
• Clean room – in robot vacuum chambers, laboratories or medical
equipment (ISO 6)
• Food grade – in packaging and food processing equipment
Custom Nut Configurations, Screw Diameters and Thread Leads Available
• Don’t see your perfect configuration – call us, we make custom sizes!
Easy to Install and Maintenance Free!
• All that is required is a Glide ScrewTM and an anti-rotation feature
• No need for reference surfaces or the pain of “floating” your
system into alignment
• Plug and play! Install it and forget it!
• Integrated Thomson’s patented Lube for Life technology
• Bearing grade plastic and stainless steel construction standard
Reduced Footprint
• Integrated lead screw / linear bearing
• Side load / moment load capable
12
Improved Equipment Uptime
• Screw and linear bearing are already aligned
• Component alignment is not critical – smooth and quiet motion
• Integrated lubrication block – Thomson Lube for Life standard
Lower Cost of Ownership
• Less complexity – faster installation
• Less components – simpler bill of material
• Maintenance free! No lubrication required
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Lead Screws Product Overview
Lead Screw Product Summary
Thomson BSA Precision Lead Screw
Series
Inch
Metric
.010”/ft. for standard
.003”/ft. for precision
250 micron/300mm for standard
75 micron/300mm for precision
Diameter
.187” - 3.00”
6mm - 24mm
Lead
.013” - 2.00”
.5mm - 50.0mm
Backlash
.010” (max)
.25mm (max)
Dynamic Load
Up to 400 lbs*
Up to 1.3 kN*
Max. Static Load
Up to 2,000 lbs*
Up to 6.6 kN*
15 - 39
15 - 39
Lead accuracy
Catalog Pages
* Plastic nut ratings. Does not include bronze nut specifications.
Lead Screw Product Availability
Inch
Lead (in.)
0.031 0.050 0.063 0.083 0.100 0.125 0.167 0.200 0.250 0.300 0.375 0.400 0.500 0.750 0.800 1.000 1.200 1.500 2.000
Dia. (in.)
3/16
1/4
5/16
3/8
7/16
1/2
5/8
3/4
1
1-1/4
1-1/2
2
2-1/4
2-1/2
2-3/4
3
Metric
1
2
3
4
5
6
8
Lead (mm)
10 12
15
16
20
25
35
45
50
Dia. (mm)
4
6
10
12
16
20
24
Availability charts do not include V-thread screw leads.
www.thomsonlinear.com
13
Glide Screw™ configurations
GSC - screw and cylindrical nut assembly
GSF - screw and flanged nut assembly
B
B
D
J
F
A h9
BCD
E
H
G H11
A h11
C
Part number example: GSC25x0500 = glide screw assembly, cylindrical nut, 0.250 inch diameter by 0.500 inch lead
Inch Series Dimensions
Screw
Diam.
[in]
0.188
0.250
0.375
Screw
Lead
[in]
Screw and Nut
Assembly
Part No.
0.050
0.125
0.050
0.500
0.063
0.500
1.000
GS_18x0050
GS_18x0125
GS_25x0050
GS_25x0500
GS_37x0063
GS_37x0500
GS_37x1000
Max
Axial
Load
[lbs]
Max
Moment
Load
[in-lbs]
Max
Screw
Length
[in]
30.0
20.5
6.000
0.375 0.750 0.281 0.875 0.140 0.125 0.094 0.188 0.177 0.625
45.0
47.5
10.000
0.500 1.000 0.313 1.000 0.140 0.150 0.125 0.250 0.237 0.750
70.0
137.5
18.000
0.875 1.750 0.563 1.500 0.200 0.300 0.188 0.438 0.406 1.188
Max
Axial
Load
[N]
Max
Moment
Load
[Nm]
Max
Screw
Length
[mm]
A
B
C
D
E
F
G
H
J
BCD
89.0
2.3
150
10
20
6.5
20
2.5
3
2
5
5
15
133.4
5.4
250
13
26
7.75
25
3.5
4
3
7
5.75
19
311.4
15.5
450
22
44
12
38
5
7
4
10
9.85
30
Dimensions [in]
A
B
C
D
E
F
G
H
J
BCD
Effic.
[%]
46
68
40
82
36
78
83
Metric Series Dimensions
Screw
Diam.
[mm]
4
6
10
Screw
Lead
[mm]
Screw and Nut
Assembly
Part No.
1
4
8
1
6
12
2
6
12
GS_4x1M
GS_4x4M
GS_4x8M
GS_6x1M
GS_6x6M
GS_6x12M
GS_10x2M
GS_10x6M
GS_10x12M
Standard Products
• Acetal nut body with all stainless steel internal components
• 303 stainless steel screw
• Integrated Lube for Life lubrication block
• Temperature Rating: -40° to 65°C (-40° to 150°F)
• Clean Room ISO 7 (Class 10000)
High Temperature
• PEEK nut material and high temperature internal components
• Temperature Rating: -10 to 175 °C (15 to 350 °F)
14
Dimensions [mm]
Effic.
[%]
45
75
82
36
75
82
40
66
77
Clean Room/Vaccum Grade
• Class ISO 6 (Class 1000)
• Vacuum rating of <10-6 Torr
• PEEK nut material with appropriate grade components
• Alternative lubrication system
Food Grade Configuration
• Food grade lubricants
• Rulon nut body, USDA-H1 compatible
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Advanced Anti-Backlash Supernuts®
XCM 1800
XCMT 1800
B
C
ØA
TH
Our smallest anti-backlash nut design ever. The XCM
1800 uses the same patented† ActiveCAM™ mechanism
as its larger siblings in a miniaturized package. This
allows backlash free operation in space critical
applications requiring high accuracy and low drag
torque. This cost effective solution is available in either
flanged or threaded versions. TriCoat® PTFE dry film
lubricant is available as an option on most screws.
XCMF 1800
B
BCD
F
ØD
ØA
ØE
Note: See Screw Section on page 36. Specify XCMT or XCMF when ordering, see
drawings at right.
Design
Load
Efficiency
%
Drag
Torque
oz-in
0.750 7/16”-20
5 lbs
49
66
70
77
81
82
82
<1
0.750 7/16”-20
5 lbs
29
<1
Supernut® Dimensions
Dia.
Lead
Part No.
XCM_1820
XCM_2-1820
XCM_3-1824
XCM_4-1820
XCM_8-1821
XCM_8-1820
XCM_10-1820
A
B
C
D
E
F
3/16”
0.050
0.100
0.125
0.200
0.375
0.400
0.500
0.50
0.90
(max)
0.200
1.00
0.143
0.18
6mm*
1mm
XCM_6x1
0.50
0.200
1.00
0.143
0.18
0.0125
0.0208
0.0250
0.0278
0.0313
0.0357
0.0417
0.050
0.063
2mm
3mm
0.125
0.200
0.250
0.500
0.750
XCM_2580
XCM_2548
XCM_2540
XCM_2536
XCM_2532
XCM_2528
XCM_2524
XCM_2520
XCM_2516
XCM_2-25x1M
XCM_3-25x1M
XCM_2-2516
XCM_4-2520
XCM_4-2516
XCM_7-2514
XCM_12-2516
0.90
(max)
0.50
0.90
(max)
0.200
1.00
0.143
0.18
0.750 7/16”-20
5 lbs
0.50
0.90
(max)
0.200
1.00
0.143
0.18
0.750 7/16”-20
5 lbs
1/4”*
1/4”
BCD
TH
13
20
23
25
28
30
34
41
48
53
62
64
72
76
81
82
<1
<1
* V-Thread screws, see page 39.
† Patent No. 5839321
www.thomsonlinear.com
15
Advanced Anti-Backlash Supernuts®
XC 2500
XCT 2500
B
C
ØA
The XC Model Anti-Backlash assembly is the most
advanced Anti-Backlash nut design. The unique
patented† ActiveCAM™ accomplishes high axial
stiffness, zero backlash and the absolute minimum drag
torque. This advantage produces assemblies that cost
less, perform better and last longer. The ActiveCAM™
automatically adjusts for wear insuring zero backlash for
the life of the nut.
XCF 2500
TH
ØD
BCD
B
F
ØE
H
ØA
Note: See Screw Section on page 36. Specify XCT or XCF when ordering, see
drawings at right.
Dia.
6mm*
1/4”*
1/4”
Lead
Part No.
1mm
XC_6x1
0.0125
0.0208
0.0250
0.0278
0.0313
0.0357
0.0417
0.050
0.063
2mm
3mm
0.125
0.200
0.250
0.500
0.750
XC_2580
XC_2548
XC_2540
XC_2536
XC_2532
XC_2528
XC_2524
XC_2520
XC_2516
XC_2-25x1M
XC_3-25x1M
XC_2-2516
XC_4-2520
XC_4-2516
XC_7-2514
XC_12-2516
Supernut® Dimensions
A
B
C
D
E
F
H
BCD
0.64
1.18
(max)
0.187
1.19
0.141
0.16
0.66
0.900
Drag
Design Efficiency Torque
Load
%
oz-in
TH
9/16”
-18
10lbs
0.64
1.18
(max)
0.187
1.19
0.141
0.16
0.66
0.900
9/16”
-18
10lbs
0.64
1.18
(max)
0.187
1.19
0.141
0.16
0.66
0.900
9/16”
-18
10lbs
29
13
20
23
25
28
30
34
41
48
53
62
64
72
76
81
82
<1
<1
<1
* V-Thread screws, see page 39.
† Patent No. 5839321
16
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Advanced Anti-Backlash Supernuts®
XC 3700
XCT 3700
XCB 3700
5/8-18 THD
M16 x 1.5 THD
ØA
C
The XC Model Anti-Backlash assembly is the most
advanced Anti-Backlash nut design. The unique
patented† ActiveCAM™ accomplishes high axial
stiffness, zero backlash and the absolute minimum drag
torque. This advantage produces assemblies that cost
less, perform better and last longer. The ActiveCAM™
automatically adjusts for wear insuring zero backlash for
the life of the nut.
ØA
C
B
B
XCF 3700
B
F
BCD
ØD
ØA
ØE
Note: See Screw Section on page 36. Specify XCT, XCB or XCF when ordering,
see drawings at right.
Dia.
5/16”
3/8”
10mm
Lead
Part No.
0.083
0.167
0.250
0.500
1.000
0.050
0.063
2mm
0.083
0.100
0.125
0.167
0.200
0.250
0.300
0.375
0.500
0.750
2mm
3mm
4mm
5mm
6mm
10mm
12mm
20mm
XC_3112
XC_2-3112
XC_2-3108
XC_4-3108
XC_8-3108
XC_3720
XC_3716
XC_37x2M
XC_3712
XC_3710
XC_3708
XC_2-3712
XC_2-3710
XC_2-3708
XC_3-3710
XC_4-3711
XC_4-3708
XC_6-3708
XC_10x2M
XC_10x3M
XC_2-10x2M
XC_2-10x2.5M
XC_4-10x1.5M
XC_5-10x2M
XC_5-10x2-4M
XC_6-10x3.3M
Supernut® Dimensions
A
B
C
D
E
F
BCD
Design
Load
0.82
1.875
(max)
0.25
1.5
0.2
0.2
1.125
25 lbs
0.82
1.875
(max)
0.25
1.5
0.2
0.2
1.125
25 lbs
0.82
1.875
(max)
0.25
1.5
0.2
0.2
1.125
25 lbs
Efficiency
%
49
65
72
80
81
32
36
42
44
49
53
60
65
68
73
75
79
82
41
53
59
64
67
76
78
81
Drag
Torque
oz-in
1-3
1-3
1-3
† Patent No. 5839321
www.thomsonlinear.com
17
Advanced Anti-Backlash Supernuts®
XC 5000
XCT 5000
XCB 5000
15/16-16 THD
M25x1.5 THD
ØA
C
ØA
C
B
The XC 5000 utilizes the same patented† ActiveCAM™ as
B
XCF 5000
found in the XC 3700 model. Along with the very low drag
torque and high axial stiffness advantages, the XC 5000
has greater load capacity.
B
F
BCD
ØD
Note: See Screw Section on page 36. Specify XCT, XCB or XCF when ordering,
see drawings at right.
ØA
ØE
Dia.
7/16”
12mm
1/2”
Lead
Part No.
0.125
0.250
0.500
3mm
4mm
5mm
6mm
10mm
15mm
25mm
45mm
.0625
0.100
4mm
0.200
0.250
0.500
0.800
1.000
1.500
XC_2-4316
XC_2-4308
XC_4-4308
XC_12x3M
XC_2-12x2M
XC_2-12x2.5M
XC_3-12x2M
XC_4-12x2.5M
XC_6-12x2.5M
XC_10-12x2.5M
XC_15-12x3M
XC_5016
XC_5010
XC_2-50x2M
XC_2-5010
XC_2-5008
XC_4-5008
XC_8-5010
XC_8-5008
XC_12-5008
Supernut® Dimensions
Design
Load
A
B
C
D
E
F
BCD
1.12
2.25
(max)
0.375
1.75
0.2
0.3
1.406
125 lbs
1.12
2.25
(max)
0.375
1.75
0.2
0.3
1.406
125 lbs
1.12
2.25
(max)
0.375
1.75
0.2
0.3
1.406
125 lbs
Efficiency
%
55
65
76
48
54
59
63
73
78
82
81
30
41
52
57
62
75
80
81
82
Drag
Torque
oz-in
1-3
1-3
1-3
† Patent No. 5839321
18
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Advanced Anti-Backlash Supernuts®
XC 6200
XCB 6200
XCT 6200
1.25-16 THD
M30x1.5 THD
ØA
C
The XC 6200 utilizes the same patented† ActiveCAM™
as found in the XC 5000 model. Along with the very low
drag torque and high axial stiffness advantages, the XC
6200 has greater load capacity.
ØA
C
B
B
XCF 6200
B
F
BCD
ØD
Note: See Screw Section on page 36. Specify XCT, XCB or XCF when ordering,
see drawings at right.
ØA
ØE
Dia.
5/8”
16mm
Lead
Part No.
0.100
0.125
0.200
0.250
0.500
4mm
5mm
8mm
16mm
25mm
35mm
XC_6210
XC_6208
XC_2-6210
XC_2-6208
XC_4-6208
XC_16x4M
XC_2-16x2.5M
XC_4-16x2M
XC_7-16x2.3M
XC_5-16x5M
XC_7-16x5M
Supernut® Dimensions
A
B
C
D
E
F
BCD
Design
Load
1.40
2.60
(max)
0.5
2.13
0.22
0.5
1.688
175 lbs
1.40
2.60
(max)
0.5
2.13
0.22
0.5
1.688
175 lbs
Efficiency
%
35
40
51
57
71
47
52
63
75
80
82
Drag
Torque
oz-in
2-6
2-6
† Patent No. 5839321
www.thomsonlinear.com
19
Advanced Anti-Backlash Supernuts®
XC 7500
XCT 7500
XCB 7500
1.375-16 THD
M35x1.5 THD
ØA
C
ØA
C
B
The XC 7500 utilizes the same patented† ActiveCAM™ as
found in the XC 5000 model. Along with the very low drag
torque and high axial stiffness advantages, the XC 7500
has greater load capacity.
B
Flange F75
F
BCD
ØD
Note: See Screw Section on page 36. Specify XCT, XCB or XCF when ordering,
see drawings at right.
ØE
TH
Dia.
3/4”
20mm
Lead
Part No.
0.100
0.125
0.167
0.200
0.500
1.000
1.500
2.000
4mm
8mm
12mm
16mm
20mm
45mm
50mm
XC_7510
XC_7508
XC_7506
XC_7505
XC_5-7510
XC_8-7508
XC_12-7508
XC_10-7505
XC_20x4M
XC_2-20x4M
XC_3-20x4M
XC_4-20x4M
XC_5-20x4M
XC_9-20x5M
XC_10-20x5M
Flange Dimensions
Nut Dimensions
A
B
C
(Optional)
D
E
F
BCD
Design
Load
1.63
2.9
(max)
0.5
2.5
0.27
0.50
2.00
250 lbs
1.63
2.9
(max)
0.5
2.5
0.27
0.50
2.00
250 lbs
Efficiency
%
31
36
44
49
69
79
81
82
41
59
67
72
76
82
82
Drag
Torque
oz-in
3 - 10
3 - 10
† Patent No. 5839321
20
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Advanced Anti-Backlash Supernuts®
XC 10000
XCT 1000
XCB 1000
1 9/16-18 THD
M40x1.5 THD
ØA
C
C
B
The XC 10000 utilizes Thomson BSA’s patented†
ActiveCAM™ technology to provide very low drag torque,
high axial stiffness and maximum wear life. This self
compensating design produces excellent positional
repeatability while insuring consistent performance for
the long run.
Lead
Part No.
24mm
5mm
XC_24x5M
1”
0.100
0.125
0.200
0.250
0.250
0.500
1.000
XC_1010
XC_1008
XC_1005
XC_2-1008
XC_1004
XC_5-1010
XC_10-1010
F
BCD
ØD
ØE
TH
Flange Dimensions
Nut Dimensions
(Optional)
A
B
C
D
E
F
BCD
1.88
3.0
(max)
0.60
3.0
0.27
0.60
2.37
3.0
(max)
0.60
1.88
B
Flange F100
Note: See Screw Section on page 36. Specify XCT, XCB or XCF when ordering,
see drawings at right.
Dia.
ØA
3.0
0.27
0.60
2.37
Design
Load
Efficiency
%
Drag
Torque
oz-in
350 lbs
42
5-15
350 lbs
25
29
41
46
47
61
74
5-15
† Patent No. 5839321
www.thomsonlinear.com
21
Advanced Anti-Backlash Supernuts®
AFT
B
ØG
BCD
F
C
ØD
ØA
The low cost AFT Supernut is designed for light load OEM
applications and offers smooth movement and low drag torque
for axial loads up to 10 pounds. The AFT anti-backlash collar
automatically adjusts for wear for the life of the nut.
Dia.
3/8”
10mm
7/16”
1/2”
22
Lead
Part No.
0.050
0.063
2mm
0.083
0.100
0.125
0.167
0.200
0.250
0.300
0.375
0.500
0.750
1.000
1.200
2mm
3mm
4mm
5mm
6mm
10mm
12mm
20mm
0.125
0.250
0.500
0.063
0.100
4mm
0.200
0.250
0.500
0.800
1.000
AFT3720
AFT3716
AFT37x2M
AFT3712
AFT3710
AFT3708
AFT2-3712
AFT2-3710
AFT2-3708
AFT3-3710
AFT4-3711
AFT4-3708
AFT6-3708
AFT5-3705
AFT5-3704
AFT10x2M
AFT10x3M
AFT2-10x2M
AFT2-10x2.5M
AFT4-10x1.5M
AFT5-10x2M
AFT5-10x2.4M
AFT6-10x3.3M
AFT2-4316
AFT2-4308
AFT4-4308
AFT5016
AFT5010
AFT2-50x2M
AFT2-5010
AFT2-5008
AFT4-5008
AFT8-5010
AFT8-5008
ØE
Supernut® Dimensions
A
B
C
D
E
F
G
Design
BCD Load
0.77
2.00
0.20
1.50
0.20
0.06
0.71
1.125
10 lbs
0.77
2.00
0.20
1.50
0.20
0.06
0.71
1.125
10 lbs
0.77
2.00
0.20
1.50
0.20
0.06
0.71
1.125
10 lbs
0.88
2.03
0.25
1.62
0.20
-
-
1.250
25 lbs
Efficiency
%
32
36
42
44
49
53
60
65
68
73
75
79
82
82
82
41
53
59
64
67
76
78
81
55
65
76
30
41
52
57
62
75
80
81
Drag
Torque
oz-in
2-5
2-5
2-5
3-7
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Anti-Backlash Supernuts®
SNAB Thread Mount Style
TH
C
ØA
B
Our SNAB Model has the greatest design flexibility allowing
anti‑backlash assemblies through 1” diameters. All SNABs are made
from our internally lubricated Acetal providing excellent lubricity and
very low wear.
Flanges
SNAB* - 3/16” to 3/8” (10mm) Diameter
Dimensions available on page 35.
Dia.
3/16”
6mm
1/4”
5/16”
3/8”
10mm
Lead
Part No.
0.050
0.100
0.125
0.200
0.375
0.400
0.500
1mm
0.031
0.050
0.063
2mm
3mm
0.125
0.200
0.250
0.500
0.750
0.083
0.167
0.250
0.500
1.000
0.050
0.063
2mm
0.083
0.100
0.125
0.167
0.200
0.250
0.300
0.375
0.500
0.750
1.000
1.200
2mm
3mm
4mm
5mm
6mm
10mm
12mm
20mm
SNAB1820X
SNAB2-1820X
SNAB3-1824X
SNAB4-1820X
SNAB8-1821X
SNAB8-1820X
SNAB10-1820X
SNAB6x1M
SNAB2532X
SNAB2520X
SNAB2516X
SNAB2-25x1M
SNAB3-25x1M
SNAB2-2516X
SNAB4-2520X
SNAB4-2516X
SNAB7-2514X
SNAB12-2516X
SNAB3112X
SNAB2-3112X
SNAB2-3108X
SNAB4-3108X
SNAB8-3108X
SNAB3720X
SNAB3716X
SNAB37x2M
SNAB3712X
SNAB3710X
SNAB3708X
SNAB2-3712X
SNAB2-3710X
SNAB2-3708X
SNAB3-3710X
SNAB4-3711X
SNAB4-3708X
SNAB6-3708X
SNAB5-3705X
SNAB5-3704X
SNAB10x2M
SNAB10x3M
SNAB2-10x2M
SNAB2-10x2.5M
SNAB4-10x1.5M
SNAB5-10x2M
SNAB5-10x2.4M
SNAB6-10x3.3M
Supernut® Dimensions
B
B
A (min)
C
TH
(max)
3/16” to 1/4”
F25
5/16” to 3/8” (10mm)
F37
Preload
Force
(lbs)
Max
Design Static
Load Load
0.625
1.125
1.250
0.187
9/16-18
1-3
10 lbs
150 lbs
0.625
1.125
1.250
0.187
9/16-18
1-3
10 lbs
150 lbs
0.625
1.125
1.250
0.187
9/16-18
1-3
25 lbs
225 lbs
0.750
1.160
1.340
0.250
5/8-18
2-5
50 lbs
350 lbs
0.750
1.160
1.340
0.250
5/8-18
2-5
70 lbs
350 lbs
0.720
1.750
2.000
0.750
1.160
1.340
0.250
5/8-18
2-5
70 lbs
350 lbs
Efficiency
%
49
66
70
77
81
82
82
37
30
41
48
53
62
64
72
76
81
82
49
65
72
80
81
32
36
42
44
49
53
60
65
68
73
75
79
82
82
82
41
53
59
64
67
76
78
81
Drag
Torque
oz-in
2-4
2-4
2-4
2-4
2-4
2-4
* SNAB nuts are only as axially stiff as the spring force in one direction.
www.thomsonlinear.com
23
Anti-Backlash Supernuts®
SNAB Thread Mount Style
Flanges
7/16” to 5/8” (16mm)
F50
Dimensions available on page 35.
SNAB*
7/16” to 5/8” (16mm) Diameter
Dia.
7/16”
12mm
1/2”
5/8”
16mm
Lead
Part No.
0.125
0.250
0.500
3mm
4mm
5mm
6mm
10mm
15mm
25mm
45mm
0.0625
0.100
4mm
0.200
0.250
0.500
0.800
1.000
1.500
0.100
0.125
0.200
0.250
0.500
4mm
5mm
8mm
16mm
25mm
35mm
SNAB2-4316X
SNAB2-4308X
SNAB4-4308X
SNAB12x3M
SNAB2-12x2M
SNAB2-12x2.5M
SNAB3-12x2M
SNAB4-12x2.5M
SNAB6-12x2.5M
SNAB10-12x2.5M
SNAB15-12x3M
SNAB5016X
SNAB5010X
SNAB2-50x2M
SNAB2-5010X
SNAB2-5008X
SNAB4-5008X
SNAB8-5010X
SNAB8-5008X
SNAB12-5008X
SNAB6210X
SNAB6208X
SNAB2-6210X
SNAB2-6208X
SNAB4-6208X
SNAB16x4M
SNAB2-16x2.5M
SNAB4-16x2M
SNAB7-16x2.3M
SNAB5-16x5M
SNAB7-16x5M
Supernut® Dimensions
B
B
C
TH
A (min)
(max)
Preload
Max
Force Design Static
Load Load
(lbs)
1.000
1.700
2.000
0.375
15/16-16
4-9
100 lbs
500 lbs
1.000
1.700
2.000
0.375
15/16-16
4-9
100 lbs
500 lbs
1.000
1.700
2.000
0.375
15/16-16
4-9
150 lbs
750 lbs
1.000
1.700
2.000
0.375
15/16-16
4-9
160 lbs
800 lbs
1.000
1.700
2.000
0.375
15/16-16
4-9
160 lbs
800 lbs
Efficiency
%
55
65
76
48
54
59
63
73
78
82
81
30
41
52
57
62
75
80
81
82
35
40
51
57
71
47
52
63
75
80
82
Drag
Torque
oz-in
3-5
3-5
5-8
7 - 10
7 - 10
* SNAB nuts are only as axially stiff as the spring force in one direction.
24
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Anti-Backlash Supernuts®
SNAB Thread Mount Style
TH
C
ØA
B
Flanges
3/4” to 1”
SNAB*
3/4” to 1” Diameter
Dia.
3/4”
20mm
24mm
1”
F100
Dimensions available on page 35.
Lead
Part No.
0.100
0.125
0.167
0.200
0.500
1.000
1.500
2.000
4mm
8mm
12mm
16mm
20mm
45mm
50mm
5mm
0.100
0.125
0.200
0.250
0.250
0.500
1.000
SNAB7510X
SNAB7508X
SNAB7506X
SNAB7505X
SNAB5-7510X
SNAB8-7508X
SNAB12-7508X
SNAB10-7505X
SNAB20x4M
SNAB2-20x4M
SNAB3-20x4M
SNAB4-20x4M
SNAB5-20x4M
SNAB9-20x5M
SNAB10-20x5M
SNAB24x5M
SNAB1010X
SNAB1008X
SNAB1005X
SNAB2-1008X
SNAB1004X
SNAB5-1010X
SNAB10-1010X
Supernut® Dimensions
B
B
A (min)
C
TH
(max)
Preload Design Max
Force Load Static
Load
(lbs)
1.750
2.500
3.000
0.600
1-9/16 - 18
10-20
300 lbs
1500 lbs
1.750
2.500
3.000
0.600
1-9/16 - 18
10-20
300 lbs
1500 lbs
1.750
2.500
3.000
0.600
1-9/16 - 18
10-20
300 lbs
1500 lbs
1.750
2.500
3.000
0.600
1-9/16 - 18
10-20
400 lbs
2000 lbs
Efficiency
%
31
36
44
49
69
79
81
82
41
59
67
72
76
82
82
42
25
29
41
46
47
61
74
Drag
Torque
oz-in
15 - 20
15 - 20
15 - 20
15 - 20
* SNAB nuts are only as axially stiff as the spring force in one direction.
www.thomsonlinear.com
25
Flange Mount Supernuts®
MTS
BCD
B
BCD
F
ØD
ØD
ØA
0.469
ØE
ØE
MTS 3/8” (10mm)
Only
Integral Flange Mount
The MTS models provide the excellent lubricity and
dimensional stability of our proprietary Acetal with the
convenience of an integral flange.
MTS 3/16” to 5/16”
MTS - 3/16” to 3/8” (10mm) Diameter
Dia.
3/16”
6mm
1/4”
5/16”
3/8”*
10mm*
Lead
Part No.
0.050
0.100
0.125
0.200
0.375
0.400
0.500
1mm
0.031
0.050
0.063
2mm
3mm
0.125
0.200
0.250
0.500
0.750
0.083
0.167
0.250
0.500
1.000
0.050
0.063
2mm
0.083
0.100
0.125
0.167
0.200
0.250
0.300
0.375
0.500
0.750
1.000
1.200
2mm
3mm
4mm
5mm
6mm
10mm
12mm
20mm
MTS1820
MTS2-1820
MTS3-1824
MTS4-1820
MTS8-1821
MTS8-1820
MTS10-1820
MTS6x1M
MTS2532
MTS2520
MTS2516
MTS2-25x1M
MTS3-25x1M
MTS2-2516
MTS4-2520
MTS4-2516
MTS7-2514
MTS12-2516
MTS3112
MTS2-3112
MTS2-3108
MTS4-3108
MTS8-3108
MTS3720
MTS3716
MTS37x2M
MTS3712
MTS3710
MTS3708
MTS2-3712
MTS2-3710
MTS2-3708
MTS3-3710
MTS4-3711
MTS4-3708
MTS6-3708
MTS5-3705
MTS5-3704
MTS10x2M
MTS10x3M
MTS2-10x2M
MTS2-10x2.5M
MTS4-10x1.5M
MTS5-10x2M
MTS5-10x2.4M
MTS6-10x3.3M
Supernut® Dimensions
Design
Load
A
B
D
E
F
BCD
0.50
0.75
1.00
0.14
0.15
0.75
10 lbs
0.50
0.75
1.00
0.14
0.15
0.75
10 lbs
0.50
0.75
1.00
0.14
0.15
0.75
25 lbs
0.50
0.75
1.00
0.14
0.15
0.75
50 lbs
0.71
1.50
1.5
0.20
0.20
1.125
60 lbs
0.71
1.50
1.5
0.2
0.200
1.125
75 lbs
Efficiency
%
49
66
70
77
81
82
82
37
30
41
48
53
62
64
72
76
81
82
49
65
72
80
81
32
36
42
44
49
53
60
65
68
73
75
79
82
82
82
41
53
59
64
67
76
78
81
Drag
Torque
oz-in
Free
Wheeling
Free Wheeling
Free
Wheeling
Free
Wheeling
Free
Wheeling
Free
Wheeling
* 3/8” and 10mm with tri-flange
26
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Flange Mount Supernuts®
MTS
BCD
B
BCD
F
ØD
ØD
ØA
0.469
ØE
ØE
MTS 7/16” Only
MTS 12mm to
5/8” (16mm)
MTS
7/16” to 5/8” (16mm) Diameter
Dia.
7/16”*
12mm
1/2”
5/8”
16mm
Lead
Part No.
0.125
0.250
0.500
3mm
4mm
5mm
6mm
10mm
15mm
25mm
45mm
0.0625
0.100
4mm
0.200
0.250
0.500
0.800
1.000
1.500
0.100
0.125
0.200
0.250
0.500
4mm
5mm
8mm
16mm
25mm
35mm
MTS2-4316
MTS2-4308
MTS4-4308
MTS12x3M
MTS2-12x2M
MTS2-12x2.5M
MTS3-12x2M
MTS4-12x2.5M
MTS6-12x2.5M
MTS10-12x2.5M
MTS15-12x3M
MTS5016
MTS5010
MTS2-50x2M
MTS2-5010
MTS2-5008
MTS4-5008
MTS8-5010
MTS8-5008
MTS12-5008
MTS6210
MTS6208
MTS2-6210
MTS2-6208
MTS4-6208
MTS16x4M
MTS2-16x2.5M
MTS4-16x2M
MTS7-16x2.3M
MTS5-16x5M
MTS7-16x5M
Supernut® Dimensions
Design
Load
A
B
D
E
F
BCD
0.71
1.50
1.5
0.20
0.200
1.125
75 lbs
0.75
1.50
1.5
0.20
0.250
1.125
125 lbs
0.75
1.50
1.5
0.20
0.250
1.125
125 lbs
0.88
1.63
1.5
0.20
0.300
1.188
175 lbs
0.88
1.63
1.5
0.20
0.300
1.188
175 lbs
Efficiency
%
55
65
76
48
54
59
63
73
78
82
81
30
41
52
57
62
75
80
81
82
35
40
51
57
71
47
52
63
75
80
82
Drag
Torque
oz-in
Free
Wheeling
Free
Wheeling
Free
Wheeling
Free
Wheeling
Free
Wheeling
* 7/16” with tri-flange
www.thomsonlinear.com
27
Flange Mount Supernuts®
MTS
BCD
B
BCD
F
ØD
ØD
ØA
0.469
ØE
ØE
MTS 3/4” (20mm)
MTS
3/4” (20mm) Diameter
Dia.
3/4”
20mm
28
Lead
Part No.
0.100
0.125
0.167
0.200
0.500
1.000
1.500
2.000
4mm
8mm
12mm
16mm
20mm
45mm
50mm
MTS7510
MTS7508
MTS7506
MTS7505
MTS5-7510
MTS8-7508
MTS12-7508
MTS10-7505
MTS20x4M
MTS2-20x4M
MTS3-20x4M
MTS4-20x4M
MTS5-20x4M
MTS9-20x5M
MTS10-20x5M
Supernut® Dimensions
A
B
D
E
F
BCD
Design
Load
1.125
1.75
2.0
0.20
0.300
1.438
275 lbs
1.125
1.75
2.0
0.20
0.300
1.438
275 lbs
Efficiency
%
31
36
44
49
69
79
81
82
42
59
67
72
76
82
82
Drag
Torque
oz-in
Free
Wheeling
Free
Wheeling
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Thread Mount Supernuts®
SN
Flanges
TH
ØA
Our standard SN nuts have proven themselves for the
past twenty years. Available in sizes from 3/16” to 1-1/2”
with or without mounting flanges.
C
B
3/16”
6mm
1/4”
5/16”
3/8”
10mm
7/16”
Lead
Part No.
0.050
0.100
0.125
0.200
0.375
0.400
0.500
1mm
0.031
0.050
0.063
2mm
3mm
0.125
0.200
0.250
0.500
0.750
0.083
0.167
0.250
0.500
1.000
0.050
0.063
2mm
0.083
0.100
0.125
0.167
0.200
0.250
0.300
0.375
0.500
0.750
1.000
1.200
2mm
3mm
4mm
5mm
6mm
10mm
12mm
20mm
0.125
0.250
0.500
SN1820X
SN2-1820
SN3-1824X
SN4-1820
SN8-1821
SN8-1820
SN10-1820
SN6x1M
SN2532X
SN2520X
SN2516X
SN2-25x1M
SN3-25x1M
SN2-2516X
SN4-2520X
SN4-2516X
SN7-2514X
SN12-2516
SN3112X
SN2-3112X
SN2-3108X
SN4-3108X
SN8-3108X
SN3720X
SN3716X
SN37x2M
SN3712X
SN3710X
SN3708X
SN2-3712X
SN2-3710X
SN2-3708X
SN3-3710X
SN4-3711X
SN4-3708X
SN6-3708
SN5-3705X
SN5-3704X
SN10x2M
SN10x3M
SN2-10x2M
SN2-10x2.5M
SN4-10x1.5M
SN5-10x2M
SN5-10x2.4M
SN6-10x3.3M
SN2-4316X
SN2-4308X
SN4-4308X
F25
5/16” to 10mm
F37
7/16” to 16mm
F50
3/4” to 1”
F75
1-1/4”
F100
1-1/2”
R54-3
Dimensions available on page 35
or online.
SN - 3/16” to 7/16” Diameter*
Dia.
3/16” to 1/4”
Supernut® Dimensions
Design
Load
Max.
Static
Load
A
B
C
TH
0.625
0.500
0.187
9/16-18
30 lbs
150 lbs
0.625
0.500
0.187
9/16-18
30 lbs
150 lbs
0.625
0.500
0.187
9/16-18
45 lbs
225 lbs
0.750
0.750
0.250
5/8-18
70 lbs
350 lbs
0.750
0.750
0.250
5/8-18
70 lbs
350 lbs
0.750
0.750
0.250
5/8-18
70 lbs
350 lbs
1.000
1.000
0.375
15/16-16
100 lbs
500 lbs
Efficiency
%
49
66
70
77
81
82
82
37
30
41
48
53
62
64
72
76
81
82
49
65
72
80
81
32
36
42
44
49
53
60
65
68
73
75
79
82
82
82
41
53
59
64
67
76
78
67
55
65
76
Flange
F25
F25
F25
F37
F37
F37
F50
* For all sizes shown on this page Drag Torque = Free Wheeling
www.thomsonlinear.com
29
Thread Mount Supernuts®
SN
Flanges
TH
ØA
C
B
3/16” to 1/4”
F25
5/16” to 10mm
F37
7/16” to 16mm
F50
3/4” to 1”
F75
1-1/4”
F100
1-1/2”
R54-3
Dimensions available on page 35
or online.
SN
1/2” (12mm) to 5/8” (16mm) Diameter*
Dia.
12mm
1/2”
5/8”
16mm
Lead
Part No.
3mm
4mm
5mm
6mm
10mm
15mm
25mm
45mm
0.0625
0.100
4mm
0.200
0.250
0.500
0.800
1.000
1.500
0.100
0.125
0.200
0.250
0.500
4mm
5mm
8mm
16mm
25mm
35mm
SN12x3M
SN2-12x2M
SN2-12x2.5M
SN3-12x2M
SN4-12x2.5M
SN6-12x2.5M
SN10-12x2.5M
SN15-12x3M
SN5016X
SN5010X
SN2-50x2M
SN2-5010X
SN2-5008X
SN4-5008X
SN8-5010X
SN8-5008X
SN12-5008X
SN6210X
SN6208X
SN2-6210X
SN2-6208X
SN4-6208X
SN16x4M
SN2-16x2.5M
SN4-16x2M
SN7-16x2.3M
SN5-16x5M
SN7-16x5M
Supernut® Dimensions
A
B
C
TH
Design
Load
Max.
Static
Load
1.000
1.000
0.375
15/16-16
100 lbs
500 lbs
1.000
1.000
0.375
15/16-16
150 lbs
750 lbs
1.000
1.000
0.375
15/16-16
160 lbs
800 lbs
1.000
1.000
0.375
15/16-16
160 lbs
800 lbs
Efficiency
%
48
54
59
63
73
78
82
81
30
41
52
57
62
75
80
81
82
35
40
51
57
71
47
52
63
75
80
82
Flange
F50
F50
F50
F50
* For all sizes shown on this page Drag Torque = Free Wheeling
30
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Thread Mount Supernuts®
SN
Flanges
TH
ØA
C
B
3/16” to 1/4”
F25
5/16” to 10mm
F37
7/16” to 16mm
F50
3/4” to 1”
F75
1-1/4”
F100
1-1/2”
R54-3
Dimensions available on page 35
or online.
SN
3/4” to 1 1/2” Diameter*
Dia.
3/4”
20mm
24mm
1”
1 1/4”
1 1/2”
Lead
Part No.
0.100
0.125
0.167
0.200
0.500
1.000
1.500
2.000
4mm
8mm
12mm
16mm
20mm
45mm
50mm
5mm
0.100
0.125
0.200
0.250
0.250
0.500
1.000
0.200
0.200
0.250
0.200
0.250
0.375
0.500
SN7510X
SN7508X
SN7506X
SN7505X
SN5-7510X
SN8-7508X
SN12-7508X
SN10-7505X
SN20x4M
SN2-20x4M
SN3-20x4M
SN4-20x4M
SN5-20x4M
SN9-20x5M
SN10-20x5M
SN24x5M
SN1010X
SN1008X
SN1005X
SN2-1008X
SN1004X
SN5-1010X
SN10-1010X
SN1205X
SN2-1210X
SN1204X
SN1505X
SN1504X
SN1503X
SN2-1504X
Supernut® Dimensions
A
B
C
TH
Max.
Design Static
Load
Load
1.500
1.500
0.500
1 3/8-16
300 lbs
1500 lbs
1.500
1.500
0.500
1 3/8-16
300 lbs
1500 lbs
1.500
1.500
0.500
1 3/8-16
300 lbs
1500 lbs
1.500
1.500
0.500
1 3/8-16
400 lbs
2000 lbs
2.000
2.000
0.600
1 9/16-18
400 lbs
2000 lbs
2.000
2.500
0.530
1.967-18
400 lbs
2000 lbs
Efficiency
%
31
36
44
49
69
79
81
82
41
59
67
72
76
82
82
42
25
29
41
46
47
61
74
35
35
41
31
36
47
52
Flange
F75
F75
F75
F75
F100
R54-3
* For all sizes shown on this page Drag Torque = Free Wheeling
www.thomsonlinear.com
31
Metric Thread Mount Supernuts®
SB
TH
ØA
C
B
Our classic Supernut is now available with metric mounting thread.
Offered with our metric screw line sizes 10mm through 24mm. The nut
color is black to easily differentiate it from the SN nut (see p. 29)
SB
10mm to 24mm) Diameter*
Dia.
10mm
12mm
16mm
20mm
24mm
Lead
Part No.
2mm
3mm
4mm
5mm
6mm
10mm
12mm
20mm
3mm
4mm
5mm
6mm
10mm
15mm
25mm
45mm
4mm
5mm
8mm
16mm
25mm
35mm
4mm
8mm
12mm
16mm
20mm
45mm
50mm
SB10x2M
SB10x3M
SB2-10x2M
SB2-10x2.5M
SB4-10x1.5M
SB5-10x2M
SB5-10x2.4M
SB6-10x3.3M
SB12x3M
SB2-12x2M
SB2-12x2.5M
SB3-12x2M
SB4-12x2.5M
SB6-12x2.5M
SB10-12x2.5M
SB15-12x3M
SB16x4M
SB2-16x2.5M
SB4-16x2M
SB7-16x2.3M
SB5-16x5M
SB7-16x5M
SB20x4M
SB2-20x4M
SB3-20x4M
SB4-20x4M
SB5-20x4M
SB9-20x5M
SB10-20x5M
5mm
SB24x5M
A
in (mm)
Supernut® Dimensions
B
C
TH
Design
Load
lb (N)
Max.
Static
Load
in (mm)
in (mm)
0.750
(19.1)
0.750
(19.1)
0.250
(6.5)
M16 x 1.5
70
(310)
350
(1550)
1.000
(25.4)
1.000
(25.4)
0.375
(9.5)
M22 x 1.5
100
(445)
500
(2225)
1.000
(25.4)
1.000
(25.4)
0.375
(9.5)
M22 x 1.5
160
(710)
800
(3560)
1.500
(38.1)
1.500
(38.1)
0.500
(12.7)
M35 x 1.5
300
(1335)
1500
(6675)
1.500
(38.1)
1.500
(38.1)
0.500
(12.7)
M35 x 1.5
300
(1335)
1500
(6675)
lb (N)
Efficiency
%
42
53
59
64
66
76
78
81
48
54
59
63
73
78
82
81
48
52
63
75
80
82
42
59
67
72
76
82
82
42
* For all sizes shown on this page Drag Torque = Free Wheeling
32
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Thread Mount Bronze Nuts
For Acme Screws
TH
ØA
C
B
For standard bronze nuts, Thomson BSA uses SAE 660
bearing bronze which provides excellent load carrying
ability, good wear resistance and is less susceptible to
damage from impact and shock loading. Custom bronzes
can be selected if required.
Material Properties
Maximum
Friction
Temperature Coefficient
max. 250°F
0.2 to 0.3
Material*
Tensile
Strength
SAE 660
35,000 psi
* Other materials available on a custom basis.
1/4” to 5/8” Diameter
Dia.
1/4”
3/8”
1/2”
5/8”
Lead
.050
.0625
.250
.0625
.083
.100
.125
.167
.100
.200
.100
.125
.200
Nut
Part No.
for R.H.
Screws
BN2520
BN2516
BN4-2516
BN3716
BN3712
BN3710
BN3708S
BN2-3712S
BN5010
BN2-5010
BN6210
BN6208S
BN2-6210
Nut
Part No.
for L.H.
Screws
BN2520L
—
—
—
BN3712L
BN3710L
—
—
BN5010L
—
BN6210L
—
—
Bronze Nut Dimensions
Fits
Flange Design
Load†
No.
Maximum
Static
Load
A
B
C
TH
0.625
0.625
0.187
9/16-18
F25
110 lbs
550 lbs
0.750
0.750
0.250
5/8-18
F37
300 lbs
1,500 lbs
1.00
1.00
0.375
15/1616
F50
620 lbs
3,100 lbs
1.00
1.00
0.375
15/1616
F50
860 lbs
4,300 lbs
Torque to
Raise
1 Pound
(in-oz)
.41
.43
1.00
.61
.64
.67
.76
.86
.83
1.10
.99
1.06
1.26
† Load ratings based on using Thomson BSA grease. See page 233.
www.thomsonlinear.com
33
Thread Mount Bronze Nuts
For Acme Screws
TH
ØA
C
B
3/4” to 3” Diameter
Dia.
3/4”
1”
1-1/4”
1-1/2”
2”
2-1/4”
2-1/2”
2-3/4”
3”
Lead
.100
.125
.167
.200
.100
.125
.200
.250
.500
1.000
.200
.250
.200
.250
.375
.500
.250
.250
.250
.250
.250
Nut
Part No.
for R.H.
Screws
BN7510
BN7508
BN7506
BN7505
BN1010
BN1008
BN1005
BN1004
BN5-1010
BN10-1010
BN1205*
BN1204*
BN1505*
BN1504*
BN1503*
BN2-1504*
BN2004*
BN2204*
BN2504*
BN2704*
BN3004*
Nut
Part No.
for L.H.
Screws
BN7510L
—
BN7506L
BN7505L
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Bronze Nut Dimensions
A
B
C
TH
Fits
Flange
No.
Design
Load†
Maximum
Static
Load
1.50
1.50
0.500
1-3/8 - 16
F75
1,500 lbs
7,500 lbs
1.50
1.50
0.500
1-3/8 - 16
F75
1,900 lbs
9,500 lbs
1.75
1.75
0.625
1-9/16 - 18
R1004-3
3,000 lbs
15,000 lbs
2.25
2.25
0.530
1.967-18
R54-3
4,600 lbs
23,000 lbs
2.75
3.37
3.37
4.00
4.00
3.50
3.00
3.00
4.00
4.00
0.780
1.56
1.56
1.75
1.75
2.548-18
3.137-12
3.137-12
3.625-12
3.625-12
R50-3
R2202-3
R2202-3
R2501-3
R2501-3
8,000 lbs
12,800 lbs
16,000 lbs
20,000 lbs
23,000 lbs
40,000 lbs
64,000 lbs
80,000 lbs
100,000 lbs
115,000 lbs
Torque to
Raise
1 Pound
(in-oz)
1.15
1.21
1.28
1.35
1.47
1.52
1.67
1.76
2.55
3.91
1.99
2.09
2.31
2.41
2.56
3.08
3.04
3.70
3.90
4.20
4.50
† Load ratings based on using Thomson BSA grease. See page 233.
* Non-stock item
34
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Standard Mounting Flanges
For Bronze Nuts and Supernuts®
F
BCD
ØD
ØE
TH
These mounting flanges are designed for easy mounting when
fixed to a bronze nut or Supernut®.
Aluminum (6061-T6) Flanges for Bronze Nuts and Supernuts®
Part No.
F25
F37
F50
F75
F100
D
1.25
1.60
2.00
2.50
3.00
E
0.140 (4X)
0.177 (4X)
0.266 (4X)
0.266 (4X)
0.266 (4X)
Flange Dimensions
F
0.187
0.250
0.375
0.500
0.600
BCD
1.00
1.24
1.50
2.00
2.37
TH
9/16 - 18
5/8 - 18
15/16 - 16
1-3/8 - 16
1-9/16 - 18
Aluminum flanges do not have a set screw which could deform the Supernut® and possibly cause binding. Aluminum flanges should be pinned or bonded to Supernuts® to
prevent unwanted disassembly during operation.
www.thomsonlinear.com
35
Lead Screws
Lead Screws — 3/16” to 3/8” Diameter
Nominal
Major
Diameter
3/16”
6mm
1/4”
5/16”
3/8”
36
Lead
0.050
0.100
0.125
0.200
0.375
0.400
0.500
1mm
0.031
0.050
0.063
2mm
3mm
0.125
0.200
0.250
0.500
0.750
0.083
0.167
0.250
0.500
1.000
0.0500
0.0625
2mm
0.083
0.100
0.125
0.167
0.200
0.250
0.300
0.375
0.500
0.750
1.00
1.20
Precision Standard
Prefix
Prefix
SPR
SRA
N/A
SPR
SPR
SRA
SRA
N/A
SPR
SRA
SPR
SRA
N/A
BSA
Part No.
Avail in
Left Hand
1820
2-1820
3-1824
4-1820
8-1821
8-1820
10-1820
6x1M
2532
2520
2516
2-25x1M
3-25x1M
2-2516
4-2520
4-2516
7-2514
12-2516
3112
2-3112
2-3108S
4-3108S
8-3108
3720
3716
37x2M
3712
3710
3708S
2-3712S
2-3710
2-3708S
3-3710
4-3711
4-3708S
6-3708
5-3705
5-3704
L
Material
Stainless Steel
L
L
L
L
Stainless Steel
Stainless Steel
L
Stainless Steel
L
L
L
L
L
L
L
L
L
Stainless Steel
Root
Diameter
0.12
0.12
0.13
0.12
0.13
0.13
0.13
0.18
0.21
0.19
0.17
0.19
0.19
0.17
0.18
0.17
0.16
0.18
0.22
0.20
0.22
0.21
0.23
0.30
0.30
0.28
0.28
0.26
0.29
0.31
0.26
0.29
0.25
0.27
0.27
0.27
0.24
0.24
Recommended
Bearing
N/A
4mm
4mm
4mm
4mm
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Lead Screws
Lead Screws — 7/16” (10mm) to 5/8” (16mm) Diameter
Nominal
Major
Diameter
10mm
7/16”
12mm
1/2”
5/8”
16mm
Lead
2mm
3mm
4mm
5mm
6mm
10mm
12mm
20mm
0.125
0.250
0.500
3mm
4mm
5mm
6mm
10mm
15mm
25mm
45mm
0.0625
0.100
4mm
0.200
0.250
0.500
0.800
1.000
1.500
0.100
0.125
0.200
0.250
0.500
4mm
5mm
8mm
16mm
25mm
35mm
www.thomsonlinear.com
Precision
Prefix
Standard
Prefix
SPT
SRT
SPR
SRA
SPR
SRA
SPT
SPR
SPT
SPR
SPT
SPR
SRT
SRA
SRT
SRA
SRT
SRA
SRA
SRA
N/A
SPR
SRA
N/A
SPR
SRA
SPT
SRT
SPR
SRA
N/A
BSA
Part No.
Avail in
Left Hand
10x2M
10x3M
2-10x2M
2-10x2.5M
4-10x1.5M
5-10x2M
5-10x2.4M
6-10x3.3M
2-4316
2-4308S
4-4308S
12x3M
2-12x2M
2-12x2.5M
3-12x2M
4-12x2.5M
6-12x2.5M
10-12x2.5M
15-12x3M
5016
5010
2-50x2M
2-5010
2-5008
4-5008
8-5010
8-5008
12-5008
6210
6208S
2-6210
2-6208S
4-6208
16x4M
2-16x2.5M
4-16x2M
7-16x2.3M
5-16x5M
7-16x5M
L
L
Material
Stainless Steel
Stainless Steel
Stainless Steel
L
Stainless Steel
L
L
L
Stainless Steel
L
Stainless Steel
Recommended
Root
Bearing
Diameter
0.31
0.25
0.29
0.27
0.31
0.29
0.29
0.30
0.35
0.36
0.33
0.31
0.36
0.35
0.35
0.35
0.34
0.36
0.37
0.41
0.37
0.39
0.39
0.38
0.36
0.37
0.39
0.39
0.52
0.52
0.52
0.52
0.48
0.45
0.48
0.51
0.49
0.45
0.48
4mm
6mm
6mm
6mm
8 to 10mm
8 to 10mm
37
Lead Screws
Lead Screws — 3/4” (24mm) to 3” Diameter
Nominal
Major
Diameter
3/4”
20mm
24mm
1”
1-1/4”
Lead
0.100
0.125
0.167
0.200
0.500
1.000
1.500
2.000
4mm
8mm
12mm
16mm
20mm
45mm
50mm
5mm
0.100
0.125
0.200
0.250
0.250
0.500
1.000
0.200
0.200
0.200
Precision Standard
Prefix
Prefix
SPR
SRA
N/A
SPT
SPR
–
–
1-1/2”
2”
2-1/4”
2-1/2”
2-3/4”
3”
SRA
SPT
SRT
SPR
SRA
N/A
SPR
RA
N/A
SRA
RA
N/A
SRA
RA
0.250
0.200
0.250
0.375
0.500
0.250
0.250
0.250
0.250
0.250
SRT
N/A
RA
N/A
N/A
N/A
N/A
N/A
RA
RA
RA
RA
RA
BSA
Part No.
Avail in
Left Hand
7510
7508
7506
7505
5-7510
8-7508
12-7508
10-7505†
20x4M
2-20x4M
3-20x4M
4-20x4M
5-20x4M
9-20x5M
10-20x5M
24x5M
1010
1008
1005
1004
2-1008
5-1010
10-1010
1205
1205
2-1210
L
L
L
L
1204
L
1505
1504
1503
2-1504
2004
2204
2504
2704
3004
L
L
Material
Stainless Steel
L
L
Stainless Steel
L
L
L
L
L
Stainless Steel
Stainless Steel
Carbon Steel
Stainless Steel
L
L
L
L
L
L
L
Low Carbon Steel
Stainless Steel
Low Carbon
Steel
Low Carbon Steel
Low Carbon Steel
Low Carbon Steel
Low Carbon Steel
Low Carbon Steel
Low Carbon Steel
Root
Diameter
0.63
0.61
0.56
0.53
0.62
0.61
0.62
0.59
0.61
0.58
0.59
0.59
0.59
0.62
0.65
0.73
0.88
0.86
0.78
0.72
0.84
0.88
0.88
1.03
1.01
1.11
Recommended
Bearing
12mm
12mm
12 to 15mm
12 to 20mm
12 to 15mm
12 to 20mm
20mm
0.98
1.28
1.23
1.11
1.23
1.73
1.98
2.23
2.48
2.73
25mm
*
*
*
*
*
† Nominal O.D. is .734”
38
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
V-Thread Screws
Burnished Finish 303 Stainless Steel
0.375H
0.5P
PITCH LINE
H
P
60˚
• Some sizes available in 1018 Steel
• Matching Supernuts and Left Hand Screws on special request
• Lead Accuracy is .015 in/ft
Diameter
Lead
Size
Part No.
6mm
1mm
0.0125
0.0208
0.0250
0.0278
0.0313
0.0357
0.0417
0.0500
0.0130
0.0420
0.013
0.0250
0.0313
0.0400
0.0417
0.0500
0.0625
0.0833
0.0500
0.0130
0.0250
0.0333
0.0500
0.0625
0.0769
6x1
1/4-80
1/4-48
1/4-40
1/4-36
1/4-32
1/4-28
1/4-24
1/4-20
5/16-80
5/16-24
3/8-80
3/8-40
3/8-32
3/8-25
3/8-24
3/8-20
3/8-16
3/8-12
7/16-20
1/2-80
1/2-40
1/2-30
1/2-20
1/2-16
1/2-13
SV6x1
SV2580
SV2548
SV2540
SV2536
SV2532
SV2528
SV2524
SV2520
SV3180
SV3124
SV3780
SV3740
SV3732
SV3725
SV3724
SV3720
SV3716
SV3712
SV4320
SV5080
SV5040
SV5030
SV5020
SV5016
SV5013
1/4”
5/16”
3/8”
7/16”
1/2”
www.thomsonlinear.com
Recommended
Bearing
4mm
4mm
4mm
4 to 6mm
6mm
6 to 8mm
39
NOTES:
40
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Ball Screws — Inch Series
Table of Contents
DescriptionPage
Product Overview..........................................................................................42
Precision Rolled Ball Screws — Inch Series...........................................46
Visual Product Reference — Precision Rolled
Ball Screws — Inch Series.........................................................................91
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
Precision Plus Ball Screws — Inch Series..............................................101
www.thomsonlinear.com
41
Ball Screws Product Overview
Thomson Advantages
Ball screws are not all alike. Differences in design, quality, materials, manufacturing, and application support are all factors that affect
the performance and extend the life of your ball screw. That’s why it’s important to select your ball screw — and ball screw supplier —
very carefully.
Design: Optimal solution for your application needs
The Thomson engineering team has painstakingly evaluated
the breadth of ball screw products from BSA, Warner Linear,
and Thomson Industries and integrated them into a single,
comprehensive, product offering. Our new line of ball screws come
in a full range of diameters, leads, and ball nut configurations, in
either preloaded or non-preloaded types, all in industry-standard
envelopes. They provide dependable accuracy and repeatability at an
economical price.
Quality: Reliability and consistent performance
At Thomson, we pride ourselves in consistently providing high quality
ball screws. Our background in flight critical aerospace and defense
applications uniquely positions us to provide the highest levels
of quality across all our ball screw products. Our fully equipped
engineering laboratory performs qualification testing for mechanical
performance, environmental effects, and structural integrity. Your ball
screw is inspected every step of the way to ensure top quality and
performance. The result, Thomson ball screws perform the way you
expect them to perform — no surprises, no problems.
Materials: Just the right custom and standard offerings
The materials used to manufacture ball screws are critical to their
performance. Our in-house metallurgists control and verify that the
materials used are of the highest quality. They can also select and
recommend materials best suited to your particular application.
We have years of experience working with a wide range of standard
and non-standard materials. Put our experience and expertise to
work for you!
Catalog Standard
Ball Screws feature
a high luster polished
and oiled finish.
Manufacturing: Ensures consistent quality and delivery
Thomson maintains the most modern and complete ball screw
manufacturing facilities in the industry. In-house manufacturing
capabilities include our proprietary heat treating and plating
processes. Expert manufacturing using the most modern
equipment available provides ball screws that set the standards for
performance, precision, and travel life.
Application Support: Over 70 years of experience at
your disposal
Working with Thomson is like having your own staff of ball
screw design engineers able to address application concerns
and recommend solutions. Thomson field sales and applications
engineering personnel have more ball screw expertise than any
other group in the industry. They are skilled at evaluating your
requirements and designing assemblies that fit your needs.
42
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Inch Ball Screws Product Overview
Precision Rolled Screws — Product Availability(1), Accuracy and Axial Play
Inch
Screw Diameter
Accuracy
Max. Axial Backlash (Non-preloaded)(2)
0.187” to 4.000”
± .004 in/ft
0.002 to 0.015”
Lead (in.)
0.050
0.062
0.125
0.200
0.250
0.413
0.473
0.500
0.660
1.000
1.500
1.875
2.000
Dia. (in.)
0.187
0.375
0.500
0.631
0.750
0.875
1.000
1.150
1.171
1.500
2.000
2.250
2.500
3.000
4.000
Precision Plus Screws — Product Availability(1), Accuracy and Axial Play
Inch
Screw Diameter
Accuracy
Max. Axial Backlash
0.500” to 2.500”
± .0005 in/ft
0”
Lead (in.)
0.050
0.062
0.125
0.200
0.250
0.413
0.473
0.500
0.660
1.000
1.500
1.875
2.000
Dia. (in.)
0.631
0.750
0.875
1.000
1.150
1.250
1.500
1.750
2.000
2.250
2.500
(1) Additional sizes are available. See our comprehensive product reference section on page 91, or contact customer service for more details.
(2) Standard lash dependent on ball diameter. See page 227 as reference. Consult factory for special requirements.
www.thomsonlinear.com
43
Precision Rolled Ball Screws Product Overview — Inch Series
Standard Non-Preloaded Ball Nuts
Standard Non-Preloaded Ball Nuts are a flexible, economical
solution for use in industrial, transport grade applications. Both
round and square models are available, with flange and wiper kits
as accessories. Non-Preloaded Ball Nuts come standard with blackoxide coating (thin dense chrome is available upon request).
Preloaded Ball Nuts
Preloaded Ball Nuts should be considered to eliminate backlash and
increase system stiffness in applications where multi-directional
positional accuracy and repeatability are required. Preloaded Ball
Nuts consist of two non-preloaded ball nuts (round or square) joined
by an adjustable preload package with springs. This design allows
ease of setup and adjust of preload based on application requirements.
Preloaded Ball Nuts with Integral Flange
Preloaded Ball Nuts with Integral Flange provide higher-level
positional accuracy and repeatability from a rolled screw assembly.
These adjustable preload ball nuts feature precision ground
internal threads, which enable smoother running, more consistent
performance. The integral flange is held to high perpendicularity
tolerances to ensure the load bearings are aligned to load to prevent
unnecessary wear.
Internal Return Ball Nuts
Internal Return Ball Nuts feature an internal ball recirculation sytem,
which allows higher speeds, and lower noise in a compact envelope.
Each nut includes an integrated wiper as standard. These ball nuts
come standard “as machined” with corrosion protective film applied
prior to shipment. machined” with corrosion protective film applied
prior to shipment. Please note, a full line of internal return ball nuts
are featured as part of our metric series ball screws.
Cylindrical Ball Nuts
Cylindrical Ball Nuts are compact in size and ideal for constrained
envelopes. These ball nuts come standard “as machined” with
corrosion protective film applied prior to shipment. Please note, a full
line of cylindrical ball nuts are featured as part of our metric series
ball screws.
High Capacity Ball Nuts
High Capacity Ball Nuts provide higher static and dynamic load capacities than our standard nuts. These ball nuts are typically longer than
standard nuts, allowing for more balls in contact with the screw. High capacity nuts may also include larger balls than those found in standard
ball nuts.
High Speed Ball Nuts
High Speed Ball Nuts are designed to permit higher linear speeds in applications where critical speed of the ball nut (DN value) limits
performance in an application. These ball nuts feature solid deflectors and reinforced ball return guides to allow smooth, reliable transition of balls
entering and exiting the return system at high speeds.
44
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Lead Screws, Ball Screws and Ball Splines
Precision Rolled Ball Screws Product Overview — Inch Series
Tangential Ball Return
A unique Thomson
feature which
minimizes recirculated
bearing ball deflection,
for smoother and
quieter operation.
The tangential circuit
consists of a pick-up
deflector finger and modified return tube
which allows the bearing balls to enter and
exit the load carrying portion of the ball
screw circuit in a straight path. Standard on
ball bearing screws with up to 10,000 pound
dynamic load capabilities.
Load Locking Spring
The load locking spring is a coil turned into
the inactive portion of the nut and conforms
to the ball tract. In normal operation, the
spring is inactive and not in contact with the
screw. In the event the ball bearings are lost
from the nut, the load locking spring will not
allow the load carrying nut to free-fall down
the screw.
End Journals and Bearing Supports
To assist the designer, standard end
journals and bearing supports are included
in this catalog. Ball screw assemblies,
complete with end journals and bearing
supports, may be ordered through a local
Thomson distributor or directly from the
factory.
Thomson welcomes the opportunity to
custom machine end journals to unique
customer designs.
Lube Holes
A standard 1/8-27 NPT tapped hole on ball
nuts with a dynamic load capacity of 10,000
pounds or more provides easy access for
continuing lubrication.
Coating
Our catalog standard ball screws feature a
high luster polished and oiled finish, which
provides superior surface finish, smoother
operation, and a high quality look and
feel which is consistent across our entire
product line. Additional ball screw coatings
(thin dense chrome, black oxide, manganese
phosphate) are available upon request.
Wiper Kit
Wipers can increase the life and long-term performance of ball bearing screws by preventing
most dirt and other foreign matter from entering the ball nut. Wipers are attached via two
methods: Type A attaches directly to the ball nut body and flange; and Type B installs into
the ends of the ball nut with easy-to-install snap rings kits. See our installation section on
page 217 for more details.
Type A
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Flanges
Standard flanges are offered for all ball nuts.
Flanges provide an easy, low cost method to
mount the load square and concentric to the
ball screw.
Type B
45
0.187 x 0.050
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.187 x 0.050
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.1
Screw Root Diameter (in.)
0.14
Nominal Ball Diameter (in.)
0.039
Number of Starts
1
Double Circuit, Cylindrical Ball Nut,
Internal Return — Stainless Steel
.584
.604
Ø.500
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Right Hand
Alloy Steel
Left Hand
Alloy Steel
Right Hand
Stainless Steel
12”
12”
7821634
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
Left Hand
Alloy Steel
Right Hand
Stainless Steel
20
75
0.14
0.005
7821609
N/A
N/A
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
46
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.187 x 0.062
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.187 x 0.062
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.1
Screw Root Diameter (in.)
0.14
Nominal Ball Diameter (in.)
0.039
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Left Hand
Alloy Steel
Right Hand
Stainless Steel
12”
12”
7821633
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Cylindrical Ball Nut,
Internal Return — Stainless Steel
.584
.604
Ø.500
Right Hand
Alloy Steel
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
Left Hand
Alloy Steel
Right Hand
Stainless Steel
20
75
0.18
0.005
7821579
N/A
N/A
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
www.thomsonlinear.com
47
0.375 x 0.125
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.375 x 0.125
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.3
Screw Root Diameter (in.)
0.30
Nominal Ball Diameter (in.)
0.063
Number of Starts
1
Single Circuit, Round Ball Nut
.664-32 UNS THD.
.471
MAX.
Ø.750
.250
1.000
.460 R
MAX.
Flange Kit
.270
Right Hand
Alloy Steel
48”
48”
5707538
Left Hand
Alloy Steel
48”
48”
5708532
Right Hand
Stainless Steel
48”
48”
5706540
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Wiper Part Number
Flange Part Number
Flange
Ø1.600
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Right Hand
Alloy Steel
136
1415
0.35
0.13
5709574
5706751
N/A
Left Hand
Alloy Steel
136
1415
0.35
0.13
5709576
5706751
N/A
Right Hand
Stainless Steel
24
255
0.35
0.13
5709578
N/A
N/A
N/A
5706751
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(4x) Ø.177
Ø1.240 B.C.
48
.664-32 UNS THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.375 x 0.125
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.375 x 0.125
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.3
Screw Root Diameter (in.)
0.31
Nominal Ball Diameter (in.)
0.078
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
11/16-24 UNEF THD.
Ø.781
.550 R MAX.
.312
1.880
Double Circuit, Round Ball Nut with Load Lock (.664
- 32 V-Thread)
.664-32 UNS THD.
.468
MAX.
Ø.781
.550 R MAX.
.250
1.875
Wiper and Flange Kits
Wiper
Right Hand
Stainless Steel
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
500
4,250
0.35
0.16
8103-448-003
8103-448-002
8103-101-002
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
500
4,250
0.35
0.16
8103-448-013
N/A
8103-101-002
Left Hand
Wiper Part Number
Flange Part Number
8103-101-002
8103-448-002
Flange
.148
Ø1.650
.139
Ø.838
Left Hand
Alloy Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
(11/16 - 24 V-Thread)
.468
MAX.
Right Hand
Alloy Steel
72”
72”
190-9441
.350
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø.880
.060 R
(4x) Ø.177
Ø1.240 B.C.
www.thomsonlinear.com
11/16-24 UNEF THD.
49
0.375 x 0.125
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.375 x 0.125
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.3
Screw Root Diameter (in.)
0.31
Nominal Ball Diameter (in.)
0.078
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
.458
.750
R MAX
.840
Single Circuit, Round Ball Nut
11/16-28 UN-2A THD
.552
.458
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Single Circuit, Cylindrical Ball Nut
.552
Right Hand
Alloy Steel
31”
48”
190-9452
.750
R MAX
.330
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
170
1,600
0.35
0.13
8103-448-017
N/A
N/A
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
170
1,600
0.35
0.13
8103-448-018
N/A
N/A
Left Hand
Wiper Part Number
Flange Part Number
8103-101-002
N/A
1.170
Wiper and Flange Kits
Wiper
Flange
.148
Ø1.650
.139
Ø.838
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø.880
.060 R
(4x) Ø.177
Ø1.240 B.C.
50
.350
11/16-24 UNEF THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.500 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.500 x 0.200
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.7
Screw Root Diameter (in.)
0.41
Nominal Ball Diameter (in.)
0.125
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
7/8-14 UNF-2A THD.
.850 R MAX.
Ø0.970
.370
1.750
www.thomsonlinear.com
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Single Circuit, Round Ball Nut with Load Lock
.665
MAX.
Right Hand
Alloy Steel
72”
72”
190-9097
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
600
2,975
0.57
0.27
8105-448-023
N/A
8105-101-002
Left Hand
51
0.500 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.500 x 0.200
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.7
Screw Root Diameter (in.)
0.41
Nominal Ball Diameter (in.)
0.125
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
15/16-16 UN THD.
Ø1.062
.850 R MAX.
p145
2.750
.380
Quick Install
Assembly
Preloaded, Double Circuit, Round Ball Nut
with Load Lock
Ø1.420 MAX.
15/16-16 UN THD.
.670 Ø1.062
MAX.
5.950 REF.
.850 R MAX.
p145
.380
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Flange
.148
.139
Ø1.122
Ø2.600
Right Hand
Stainless Steel
.530
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
1,200
9,430
0.57
0.55
8105-448-013
8105-448-002
8105-101-002
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
1,200
9,430
0.57
1.30
8105-448-008
8105-448-002
8105-101-002
Left Hand
Wiper Part Number
Flange Part Number
8105-101-002
8105-448-002
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.138
.060 R
(4x) Ø.281
Ø2.090 B.C.
52
Left Hand
Alloy Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
.665
MAX.
Right Hand
Alloy Steel
72”
72”
190-9097
15/16-16 UN THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.500 x 0.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.500 x 0.500
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.7
Screw Root Diameter (in.)
0.41
Nominal Ball Diameter (in.)
0.125
Number of Starts
2
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
15/16-16 UN THD.
Ø1.060
.380
.670 R MAX.
p145
1.750
Quick Install
Assembly
Double Circuit, Round Ball Nut with Load Lock —
High Capacity
15/16-16 UN THD.
.667
MAX. Ø1.062
.380
.670 R MAX.
Left Hand
Alloy Steel
Right Hand
Stainless Steel
72”
72”
190-9010
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut
.667
MAX.
Right Hand
Alloy Steel
72”
72”
190-9096
2.750
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
929
4,150
1.42
0.27
8105-448-014
8105-448-002
8105-101-002
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
2,200
13,350
1.42
0.40
8105-448-011
8105-448-002
8105-101-002
Left Hand
Alloy Steel
Right Hand
Stainless Steel
380
1,950
1.42
0.40
8105-448-016 (1)
8105-448-004
8105-101-002
(1) Load Lock not available
Wiper and Flange Kits
Wiper
Wiper Part Number
Flange Part Number
Flange
.148
.139
Ø2.600
Ø1.122
.530
8105-101-002
8105-448-002
8105-101-002
8105-448-004
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.138
.060 R
(4x) Ø.281
Ø2.090 B.C.
www.thomsonlinear.com
15/16-16 UN THD.
53
0.631 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
0.631 x 0.200
± 0.004
0.9
0.50
0.125
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
15/16-16 UN THD.
1.000 o
.500
.500
.800 R MAX.
p145
1.710
Quick Install
Assembly
Single Circuit, Square Ball Nut – Stainless Steel
15/16-16 UN THD.
.885
MAX.
1.000 o
.500
.550
.800 R MAX.
1.710
Single Circuit, Round Ball Nut with Load Lock
15/16-16 UN THD.
.787
MAX.
.800 R MAX.
Left Hand
Alloy Steel
72”
144”
190-9099
Right Hand
Stainless Steel
72”
72”
5705378
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Single Circuit, Square Ball Nut with Load Lock
.797
MAX.
Right Hand
Alloy Steel
72”
144”
190-9098
Ø1.125
.500
1.710
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
800
6,384
0.57
0.27
8106-448-022
8105-448-002
N/A
Left Hand
Alloy Steel
800
6,384
0.57
0.27
8106-448-026
8105-448-002
N/A
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
Left Hand
Alloy Steel
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Right Hand
Alloy Steel
800
6,384
0.57
0.27
8106-448-009
Left Hand
Alloy Steel
800
6,384
0.57
0.27
8106-448-008 (1)
Flange Part Number
Wiper Kit Part Number
8105-448-002
8106-101-002
8105-448-002
8106-101-002
Right Hand
Stainless Steel
140
1,149
0.57
0.27
5707645
N/A
N/A
1) Load Lock not available
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
54
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.631 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
0.631 x 0.200
± 0.004
0.9
0.50
0.125
1
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Ø1.410 MAX.
15/16-16 UN-2A THD.
Ø1.125
.800 R MAX.
4
.5002
3
E.N.#
2
D
Preloaded, Square Ball Nut
15/16-16 UN-2A THREAD
1.410
.797
MAX
.800 R MAX
.500
.500
1.000
3.875 MAX
p145
B
Quick Install
Assembly
NOTES:
Double Circuit, Square Ball Nut
15/16-16 UN-2A THD
1. MAX WIDTH ACROSS TUBES = .797
15/16-16 UN THD.
2. MAX DIAMETER OVER TUBES = 1.600
3. DYNAMIC CAPACITY = 800 LBS
STATIC CAPACITY = 6384 LBS
.797
MAX.
A
4 .500
1.000
BALL GROOVE
KEY PRODUCT CHARACTERISTICS
BALL GROOVE DATA
UNLESS OTHERWISE SPECIFIED
.02
F DRAWING SYMBOLS & TOLERANCES ON COMMON CENTERS
PER ANSI Y14.5M-1994
MAX SURFACE ROUGHNESS 125
LINEAR DIMS ARE IN INCHES
PER ANSI B46.1-1985
ANGULAR DIMS ARE IN DEGREES
DIM LIMITS & SURFACE TEXTURE
TOLERANCES: .XX = ± .02
DESIGNATIONS APPLY AFTER
BALL GROOVE
.XXX = ±
.010
BALL SIZE
TOTAL
NUMBER
ON
DRAWING
PLATING/COATING
.12500 FORM
ANGULAR = ±
.5 °
THIS DOCUMENT MAY BE CONTROLLED UNDER EITHER THE INTERNATIONAL TRAFFIC
CAGE CODE
SIZE
IN ARMS REGULATIONS ("ITAR") OR THE EXPORT ADMINISTRATION REGUALTIONS
EDGE/CORNER BREAKS .005-.015
("EAR"). A LICENSE OR OTHER U.S. GOVERNMENT AUTHORIZATION MAY BE REQUIRED
FILLET RADII .015
TO EXPORT OR RE-EXPORT THIS DOCUMENT TO A FOREIGN PERSON OR FOREIGN ENTITY.
THOMSON
FIT/FUNCTION
THOMSON
SAFETY/COMPLIANCE
CUSTOMER
(NON-M.R.B.)
NO OF
HAND
BALL CIRCLE
DIAMETER
RIGHT CIRCUITS
LEAD
.20000 ANGLE
TURNS PER
.631 CIRCUIT
HELIX
THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION PROPRIETARY TO
LINEAR MOTION,LLC AND IS FURNISHED UPON THE EXPRESSED CONDITION
THAT THIS INFORMATION WILL NOT BE USED OR DISCLOSED FOR SECOND
SOURCE PROCUREMENT OR USED OR DISCLOSED DIRECTLY OR INDIRECTLY
ANY DIVERSION CONTRARY TO U.S. EXPORT CONTROL LAWS IS STRICTLY PROHIBITED
IN ANY WAY DETRIMENTAL TO THE INTERESTS OF LINEAR MOTION,LLC.
.500
3
.800 R MAX.
2
2.860
Wiper and Flange Kits
Wiper
.148
.139
Ø1.177
JGJ
APPROVALS
DRAWN:J. JOHNSON
DATE
.530
D
Left Hand
Alloy Steel
800
6,384
0.57
0.79
8106-448-019
8105-448-002
8106-101-002
B
TM
03/16/11
Solutions by
628 N.HAMILTON STREET,SAGINAW,MI 48602
DWG TITLE:
PRELOADED, BALL NUT (.631X.200)
FIRST ASSY:
SHEET:
MATERIAL:
SCALE:
1 OF 1
DWG NO:
8106-448-012
1.500 DRAWN IN PRO-E,WILD FIRE 2.0
Wiper Part Number
Flange Part Number
Flange
Ø2.600
DWN
Right Hand
Alloy Steel
1,600
12,768
A
0.57
0.54
8106-448-036
8105-448-002
N/A
APPROVED:
B
DATE
03/16/11
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
1
Flange Part Number
Wiper Kit Part Number
CHECKED:
0A335
.450
DESCRIPTION
CUSTOMER APPROVAL DRAWING
Right Hand
Alloy Steel
800
6,384
C
0.57
0.79
8106-448-012
8105-448-002
N/A
C
THIRD ANGLE PROJECTION
Right Hand
Alloy Steel
800
6,384
0.57
0.79
8106-448-015
8105-448-002
8106-101-002
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
S
1.710
1.000
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
1
Flange Part Number
Wiper Kit Part Number
REVISIONS
REV
3.797
C
Left Hand
Alloy Steel
72”
144”
190-9099
Ball screws can be cut to the length you require. Specify ball screw
part number and overall length at time of order.
Preloaded, Single Circuit, Round Ball Nut
.787
MAX.
Right Hand
Alloy Steel
72”
144”
190-9098
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
REV
2
8106-101-002
8105-448-002
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.060
.060 R
(4x) Ø.281
Ø2.090 B.C.
www.thomsonlinear.com
15/16-16 UN THD.
55
0.631 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.631 x 0.200
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.9
Screw Root Diameter (in.)
0.50
Nominal Ball Diameter (in.)
0.138
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
15/16-16 UN THD.
Ø1.130
.500
1.850
Ø2.600
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Wiper Part Number
Flange Part Number
Flange
.530
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Triple Circuit, Internal Return, Round Ball Nut
Flange Kit
Right Hand
Alloy Steel
118”
118”
7832873-T7
Right Hand
Alloy Steel
650
4,950
0.57
0.27
7832872
5707570
Internal
Left Hand
N/A
5707570
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(4x) Ø.266
Ø2.090 B.C.
56
15/16-16 UN THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.631 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.631 x 0.200
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.9
Screw Root Diameter (in.)
0.50
Nominal Ball Diameter (in.)
0.125
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
2.035 MAX.
15/16-16
UNMAX.
THD.
.505
.500
1.000 o
.500
.800 R MAX.
1.000
Flange Kit
Ø2.600
15/16-16 UN-2A THD
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
.530
Right Hand
Stainless Steel
Right Hand
Left Hand
Alloy Steel
1,600
12,768
0.57
0.54
8106-448-037
8105-448-002
N/A
1.710
Wiper Part Number
Flange Part Number
Flange
Left Hand
Alloy Steel
72”
144”
190-9099
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Square Ball Nut
.797
MAX.
Right Hand
Alloy Steel
N/A
5707570
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(4x) Ø.266
Ø2.090 B.C.
15/16-16 UN THD.
www.thomsonlinear.com
57
0.631 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.631 x 1.000
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
0.8
Screw Root Diameter (in.)
0.48
Nominal Ball Diameter (in.)
0.125
Number of Starts
4
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
15/16-16 UN THD.
Ø1.125
.827
MAX. TYP.
p145
.500
1.710
Quick Install
Assembly
Preloaded, Double Circuit, Round Ball Nut
15/16-16 UN THD.
.760
MAX. TYP.
Ø1.125
.827
MAX. TYP.
p145
3.440
.500
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Flange
.137
Ø2.600
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
578
2,425
2.83
0.28
7826713
5707570
7827527
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
578
2,425
2.83
0.67
7827531
5707570
7827527
Left Hand
Wiper Part Number
Flange Part Number
.150
Ø2.158
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut
.760
MAX. TYP.
Right Hand
Alloy Steel
72”
96”
7826712
.530
7827527
5707570
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.870
(4x) Ø.266
Note: Wiper kit does not include flange
end cap.
58
Ø2.090 B.C.
15/16-16 UN THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.750 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
0.750 x 0.200
± 0.004
1.4
0.66
0.125
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1.173-18 UNS THD.
Ø1.312
.900 R MAX.
p145
.500
Quick Install
Assembly
1.125-18 UNEF THD.
Ø1.312
.900 R MAX.
.500
1.880
Single Circuit, Round Ball Nut
(1.250 - 18 V-Thread)
1.250-18 UNEF THD.
.959
MAX.
.900 R MAX.
Right Hand
Stainless Steel
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
950
7,750
0.57
0.50
8107-448-018
8107-448-007
8107-101-002
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
950
7,750
0.57
0.50
8107-448-026
N/A
N/A
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Carbon Steel
950
7,750
0.57
0.50
8107-448-047
N/A
N/A
Left Hand
1.880
Single Circuit, Round Ball Nut
(1.125 - 18 V-Thread)
.959
MAX.
Left Hand
Alloy Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Single Circuit, Round Ball Nut
with Load Lock (1.173 - 18 V-Thread)
.959
MAX.
Right Hand
Alloy Steel
72”
144”
190-9101
Ø1.312
.500
1.880
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
www.thomsonlinear.com
59
0.750 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
0.750 x 0.200
± 0.004
1.4
0.66
0.125
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1.173-18 UNS THD.
Ø1.312
.940 R MAX.
.500
2.880
Double Circuit, Round Ball Nut with Load Lock
(1.125 - 18 V-Thread)
1.125-18 UNEF THD.
.917
MAX.
Ø1.312
.940 R MAX.
.500
2.880
Double Circuit, Round Ball Nut with Load Lock
(1.250 - 18 V-Thread)
1.250-18 UNEF THD.
.917
MAX.
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
(1.173 - 18 V-Thread)
.917
MAX.
Right Hand
Alloy Steel
72”
144”
190-9101
Ø1.312
.940 R MAX.
.500
2.880
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
1,900
18,800
0.57
0.75
8107-448-016
8107-448-007
8107-101-002
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
1,900
18,800
0.57
0.75
8107-448-027
N/A
N/A
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
1,900
18,800
0.57
0.75
8107-448-046
N/A
N/A
Left Hand
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
60
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.750 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.750 x 0.200
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
1.4
Screw Root Diameter (in.)
0.66
Nominal Ball Diameter (in.)
0.125
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Ø1.670 MAX
1.173-18 UNS THD.
Ø1.312
.500
.900 R MAX.
p145
4.080 REF
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Flange
.148
.158
Ø1.382
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Preloaded, Single Circuit, Round Ball Nut
(1.173 - 18 V-Thread)
.959
MAX.
Right Hand
Alloy Steel
72”
144”
190-9101
Ø2.600
.530
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
950
7,750
0.57
1.20
8107-448-025
8107-448-007
8107-101-002
Wiper Part Number
Flange Part Number
8107-101-002
8107-448-007
Left Hand
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.230
(4x) Ø.281
.060 R
www.thomsonlinear.com
Ø2.090 B.C.
1.173-18 UNS THD.
61
0.750 x 0.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
0.750 x 0.500
± 0.004
1.4
0.63
0.156
2
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1.250-16 UN THD.
Ø1.312
1.060 R MAX.
p145
2.930
.500
Quick Install
Assembly
1.173-18 UNS THD.
Ø1.312
1.060 R MAX.
2.930
.500
Double Circuit, Round Ball Nut with Load Lock
(1.250 - 18 V-Thread)
1.250-18 UNEF THD.
.983
MAX.
1.060 R MAX.
Right Hand
Stainless Steel
72”
144”
190-9006
Right Hand
Alloy Steel
3,450
24,200
1.42
0.80
8107-448-014
8107-448-002
8107-101-002
Left Hand
Alloy Steel
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
3,450
24,200
1.42
0.80
8107-448-049
N/A
N/A
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
3,450
24,200
1.42
0.80
8107-448-048
N/A
N/A
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Stainless Steel
600
3,460
1.42
0.80
8107-448-020 (1)
8107-448-004
8107-101-002
(1) Load Lock not available
Double Circuit, Round Ball Nut with Load Lock
(1.173 - 18 V-Thread)
.983
MAX.
Left Hand
Alloy Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
(1.250 - 16 V-Thread)
.983
MAX.
Right Hand
Alloy Steel
72”
144”
190-9100
Ø1.312
2.930
.500
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
62
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
0.750 x 0.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
0.750 x 0.500
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
1.4
Screw Root Diameter (in.)
0.63
Nominal Ball Diameter (in.)
0.156
Number of Starts
2
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Ø1.670 1.250-16
MAX. UN THD.
1.250-16 UN THD.
.983 .983 Ø1.312
MAX.MAX.Ø1.312
p145
2.930
.500
.500REF.
6.180
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Flange
.148
.158
Ø1.382
Left Hand
Alloy Steel
Ball screws can be cut to the length you require. Specify ball screw
part number and overall length at time of order.
Preloaded, Double Circuit, Round Ball Nut
with Load Lock (1.250 - 16 V-Thread)
1.060 R MAX.
1.060 R MAX.
Right Hand
Alloy Steel
72”
144”
190-9100
Ø2.600
.530
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
3,450
24,200
1.42
1.85
8107-448-011
8107-448-002
8107-101-002
Wiper Part Number
Flange Part Number
8107-101-002
8107-448-002
Left Hand
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.230
(4x) Ø.281
.060 R
www.thomsonlinear.com
Ø2.090 B.C.
1.250-16 UN THD.
63
0.875 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
0.875 x 0.200
± 0.004
1.8
0.74
0.125
1
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
8
Ø1.615
1 3/8-16 UN THD.
7
p145
6
.500
5
4
3
2
2.704
Quick Install
Assembly
1
F
REV E.N.#
A 10-0219
B 11-0033
Preloaded, Single Circuit, Round Ball Nut with
Integral Flange
5X .266 THRU
ON A 1.750 BOLT CIRCLE
60°
Right Hand
Alloy Steel
1,942
18,063
0.57
0.69
5708277
5708281
7831512
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
1.009
MAX.
9
REVISIONS
DESCRIPTION
RELEASE PER EN
REVISE PER EN
.125 THRU
ONE WALL ONLY
(LUBE HOLE)
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
(2.250 )
60°
MEASURE GAP HERE
(.300)
Left Hand
Right Hand
Alloy Steel
971
9,482
0.57
1.81
7833677
Integral
Integral
D
1.251 )
1.250
(
Right Hand
Stainless Steel
DATE DWN
12/15/10 JGJ
03/09/11 JGJ
E
R.880 MAX
1.011 MAX
Left Hand
Alloy Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut
.880 R MAX.
Right Hand
Alloy Steel
144”
144”
5708859
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
C
(.437)
(3.835)
Wiper and Flange Kits
Wiper
Wiper Part Number
Flange Part Number
Flange
.105
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
.520
Ø2.760
.137
A
BALL GROOVE DATA
LEAD
AD CHART
NING GAP
N GAP
Ø1.698
7
Ø1.238
6
5
NO OF
CIRCUITS
TURNS PER
CIRCUIT
HELIX
ANGLE
BALL GROOVE
FORM
THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION PROPRIETARY TO
LINEAR MOTION,LLC AND IS FURNISHED UPON THE EXPRESSED CONDITION
THAT THIS INFORMATION WILL NOT BE USED OR DISCLOSED FOR SECOND
SOURCE PROCUREMENT OR USED OR DISCLOSED DIRECTLY OR INDIRECTLY
IN ANY WAY DETRIMENTAL TO THE INTERESTS OF LINEAR MOTION,LLC.
ANY DIVERSION CONTRARY TO U.S. EXPORT CONTROL LAWS IS STRICTLY PROHIBITED
4
THIRD ANGLE PROJECTION
3
MAX RESULTANT
TORQUE
PRELOAD IN LBS INCH - LBS
216
160
8
KEY PRODUCT CHARACTERISTICS
UNLESS OTHERWISE SPECIFIED
THOMSON
DRAWING SYMBOLS & TOLERANCES ON COMMON CENTERS .02
F
FIT/FUNCTION
PER ANSI Y14.5M-1994
MAX SURFACE ROUGHNESS 125
THOMSON
S LINEAR DIMS ARE IN INCHES
SAFETY/COMPLIANCE
PER ANSI B46.1-1985
ANGULAR DIMS ARE IN DEGREES
CUSTOMER
DIM LIMITS & SURFACE TEXTURE
C TOLERANCES: .XX = .02
(NON-M.R.B.)
DESIGNATIONS APPLY AFTER
.XXX = .010
BALL SIZE
TOTAL NUMBER ON DRAWING
PLATING/COATING
ANGULAR = .5
CAGE CODE
THIS DOCUMENT MAY BE CONTROLLED UNDER EITHER THE INTERNATIONAL TRAFFIC
SIZE
IN ARMS REGULATIONS ("ITAR") OR THE EXPORT ADMINISTRATION REGUALTIONS
EDGE/CORNER BREAKS .005-.015
("EAR"). A LICENSE OR OTHER U.S. GOVERNMENT AUTHORIZATION MAY BE REQUIRED
FILLET RADII .015
TO EXPORT OR RE-EXPORT THIS DOCUMENT TO A FOREIGN PERSON OR FOREIGN ENTITY.
BALL GROOVE
HAND
BALL CIRCLE
DIAMETER
9
1.296
.960
Note: Wiper
kit does not include flange
9.60
end cap.
4.80
100
.600
50
.300
64
0A335
2
D
APPROVALS
DRAWN:
CHECKED:
APPROVED:
DATE
TM
Solutions by
628 N.HAMILTON STREET,SAGINAW,MI 48602
DWG TITLE:
FIRST ASSY:
SHEET:
DWG NO:
MATERIAL:
SCALE:
DRAWN IN PRO-E,WILD FIRE 2.0
REV
1
J. JOHNSON 12/15/10
INCH - OZ
20.74
15.36
7831512
5708281
B
(4x) Ø.266
Ø2.260 B.C.
BALL NUT ASSY
1
RIGHT
3/8-16
UN
.875
.200
.125
2X1
THD.3.5 4°10'
5700993
1 OF 1
2.000
7833677
B
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
1.000 x 0.250
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
1.000 x 0.250
± 0.004
2.3
0.84
0.156
1
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1.563-18 UNEF THD.
1.500 o
.600
1.070 R MAX.
p145
2.347
Quick Install
Assembly
Single Circuit, Round Ball Nut with Load Lock
1.563-18 UNEF THD.
1.185
MAX.
Left Hand
Alloy Steel
144”
144”
190-9105
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Single Circuit, Square Ball Nut with Load Lock
1.195
MAX.
Right Hand
Alloy Steel
144”
288”
190-9104
Ø1.687
1.090 R MAX.
.625
2.350
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
1,612
15,300
0.71
0.81
8110-448-055
8110-448-002
N/A
Left Hand
Alloy Steel
1,612
15,300
0.71
0.81
8110-448-091
8110-448-002
N/A
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Right Hand
Alloy Steel
1,612
13,913
0.71
0.81
8110-448-032
Left Hand
Alloy Steel
1,612
13,913
0.71
0.81
8110-448-030 (1)
Flange Part Number
Wiper Kit Part Number
8110-448-002
8110-101-002
8110-448-002
8110-101-002
Right Hand
Alloy Steel
3,350
30,750
0.71
1.25
8110-448-056
8110-448-002
N/A
Left Hand
(1) Load Lock not available
Double Circuit, Square Ball Nut with Load Lock
1.563-18 UNEF THD.
1.196
MAX.
1.500 o
.600
1.070 R MAX.
3.000
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
www.thomsonlinear.com
65
1.000 x 0.250
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
1.000 x 0.250
± 0.004
2.3
0.84
0.156
1
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1 9/16 -18 UNEF THD.
Ø1.687
1.060 R MAX.
.625
3.130
Double Circuit, Round Ball Nut with Integral Flange
Ø2.755
(4x) Ø.283
ON Ø2.250 BC
.375
45°
TYP.
1.150
MAX.
Ø1.625
1.107 R MAX.
3.000
Wiper and Flange Kits
Wiper
Flange
.148
Ø3.250
.158
Ø1.763
Right Hand
Stainless Steel
.630
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
3,350
30,750
0.71
1.25
8110-448-026
8110-448-002
8110-101-002
Left Hand
Alloy Steel
3,350
30,750
0.71
1.25
8110-448-024
8110-448-002
8110-101-002
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
3,350
30,750
0.71
1.50
8110-448-087
Integral
N/A
Left Hand
Alloy Steel
3,350
30,750
0.71
1.50
8110-448-088
Integral
N/A
Wiper Part Number
Flange Part Number
8110-101-002
8110-448-002
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.610
.060 R
(4x) Ø.281
Ø2.750 B.C.
66
Left Hand
Alloy Steel
144”
144”
190-9105
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
1.204
MAX.
Right Hand
Alloy Steel
144”
288”
190-9104
1 9/16-18 UNEF THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
1.000 x 0.250
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
1.000 x 0.250
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
2.3
Screw Root Diameter (in.)
0.84
Nominal Ball Diameter (in.)
0.156
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
.250
(5x) Ø.281
ON Ø2.250 BC
60° TYP.
Ø1.620
1.107 R
MAX.
Ø2.750
.500
1/4 - 28 UNF THD. LUBE HOLE
4.438 REF.
Preloaded, Single Circuit, Square Ball Nut
Ø1.615 MAX.
1 9/16-18 UNEF THD.
1.104
MAX.
1.500 o
1.152 R
MAX.
p145
.600
4.847 REF.
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Flange
.156 (flange)
.188
Left Hand
Alloy Steel
192”
192”
7820428
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Preloaded, Single Circuit, Round Ball Nut
with Integral Flange
1.064
MAX.
Right Hand
Alloy Steel
192”
192”
7820426
Ø3.250
.630
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
1,612
13,913
0.71
2.00
7823586
Internal
Internal
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Right Hand
Left Hand
Alloy Steel
1,612
13,913
0.71
1.90
5704167
Alloy Steel
1,612
13,913
0.71
1.90
5704168
Flange Part Number
Wiper Kit Part Number
5707571
5702649
5707571
5702649
Wiper Part Number
Flange Part Number
5702649
5707571
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.500
(4x) Ø.266
Ø2.750 B.C.
1 9/16-18 UNEF THD.
Note: Wiper Kit does not include flange end cap.
www.thomsonlinear.com
67
1.000 x 0.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
1.000 x 0.500
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
2.6
Screw Root Diameter (in.)
0.88
Nominal Ball Diameter (in.)
0.156
Number of Starts
2
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1 9/16-18 UNEF THD.
Ø1.687
1.120 R MAX.
p145
.625
3.120
Quick Install
Assembly
Preloaded, Double Circuit, Round Ball Nut
with Load Lock
1 9/16-18 UNEF THD.
Ø2.070 MAX.
1.191
MAX.
Ø1.687
1.120 R MAX.
p145
.625
6.640 REF.
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Flange
.156 (flange)
.188
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
1.191
MAX.
Right Hand
Alloy Steel
144”
288”
190-9103
Ø3.250
.630
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
3,950
32,300
1.42
1.25
8110-448-022
8110-448-002
8110-101-002
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
3,950
32,300
1.42
2.90
8110-448-016
8110-448-002
8110-101-002
Left Hand
Wiper Part Number
Flange Part Number
8110-101-002
8110-448-002
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.500
(4x) Ø.266
Ø2.750 B.C.
68
1 9/16-18 UNEF THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
1.000 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
1.000 x 1.000
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
2.3
Screw Root Diameter (in.)
0.84
Nominal Ball Diameter (in.)
0.156
Number of Starts
4
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Left Hand
Alloy Steel
Right Hand
Stainless Steel
144”
144”
190-9150
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
1 9/16 -18 UNEF THD.
1.200
MAX.
Right Hand
Alloy Steel
144”
288”
190-9102
Ø1.687
.600
1.170 R MAX.
3.000
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Right Hand
Alloy Steel
2,250
13,750
2.83
1.25
8110-448-020
Flange Part Number
Wiper Kit Part Number
8110-448-002
8110-101-002
Left Hand
Alloy Steel
Right Hand
Stainless Steel
430
2000
2.83
1.25
8110-448-034 (1)
8110-448-037
8110-101-002
(1) Load Lock not available
Double Circuit, Square Ball Nut with Load Lock
1 9/16-18 UNEF THD.
1.022
MAX.
1.500 o
.600
1.062 R MAX.
p145
3.000
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Flange
.156 (flange)
.188
Ø3.250
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
2,400
13,600
2.83
1.25
8110-448-086
8110-448-002
N/A
Wiper Part Number
Flange Part Number
Flange Part Number
8110-101-002
8110-448-002
8110-448-037
Left Hand
.630
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.500
(4x) Ø.266
Ø2.750 B.C.
www.thomsonlinear.com
1 9/16-18 UNEF THD.
69
1.150 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
1.150 x 0.200
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
3.2
Screw Root Diameter (in.)
1.02
Nominal Ball Diameter (in.)
0.125
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Ø1.688
.300
1.167
MAX.
Ø.125 LUBE HOLE
Ø2.875
1.107 R
MAX.
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Preloaded, Single Circuit, Round Ball Nut
with Integral Flange
(5x) Ø.344
ON Ø2.281 BC
Right Hand
Alloy Steel
240”
240”
7820430
3.821 REF.
.500
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
1,185
13,090
0.57
1.75
7823587
Integral
Internal
Left Hand
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
70
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
1.150 x 0.200
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
1.150 x 0.200
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
3.2
Screw Root Diameter (in.)
1.02
Nominal Ball Diameter (in.)
0.125
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Ø2.070 MAX.
1 5/8-20 UN THD.
Ø1.687
1.220 R MAX.
5.500 REF.
.475
Quick Install
Assembly
p145
Double Circuit, Round Ball Nut with Load Lock
1 5/8-20 UN THD.
1.281
MAX.
Ø1.687
1.220 R MAX.
p145
2.500
.475
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Flange
.148
Ø3.200
.158
Ø1.763
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Preloaded, Double Circuit, Round Ball Nut
with Load Lock
1.281
MAX.
Right Hand
Alloy Steel
144”
288”
190-9106
.490
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
2,400
27,550
0.57
2.25
8111-448-004
8111-448-002
8111-101-002
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
2,400
27,550
0.57
0.88
8111-448-006
8111-448-002
8111-101-002
Left Hand
Wiper Part Number
Flange Part Number
8111-101-002
8111-448-002
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.610
.060 R
(4x) Ø.281
Ø2.702 B.C.
www.thomsonlinear.com
1 5/8-20 UN THD.
71
1.171 x 0.413
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
1.171 x 0.413
± 0.004
2.8
0.87
0.281
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
1.967-18 UNS THD.
Ø2.125
1.250 R MAX.
3.375
.812
Wiper and Flange Kits
Wiper
Ø4.200
.182
Ø2.194
Wiper Part Number
Flange Part Number
Flange
.150
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut
1.583
MAX.
Right Hand
Alloy Steel
192”
192”
7820432
.832
Right Hand
Alloy Steel
3,894
22,917
1.17
1.94
5707511
5707572
5702653
Left Hand
5702653
5707572
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.645
(4x) Ø.397
Ø3.440 B.C.
1.967-18 UNS THD.
Note: Wiper kit does not include flange
end cap.
72
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
1.500 x 0.250
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
1.500 x 0.250
± 0.004
5.2
1.32
0.156
1
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1.967-18UNS THD.
1.604
MAX.
1.342 R
MAX.
p145
.500
2.875
Quick Install
Assembly
1.604
MAX.
Flange Part Number
Wiper Kit Part Number
.500
6.375 REF
Quick Install
Assembly
Ø4.200
.137
Ø2.158
Wiper Part Number
Flange Part Number
Flange
.150
Right Hand
Alloy Steel
4,198
44,030
0.71
1.65
7833233
5706754
5702654
Left Hand (1)
Alloy Steel
4,198
44,030
0.71
1.65
5701990 (1)
5706754
5702654
Right Hand
Alloy Steel
4,198
44,030
0.71
3.80
7833234
Left Hand
Alloy Steel
4,198
44,030
0.71
3.80
5704573 (1)
5706754
5702654
5706754
5702654
(1) Load Lock not available
Wiper and Flange Kits
Wiper
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
1.967-18 UNS THD.
Ø2.088
p145
Right Hand
Stainless Steel
(1) Load Lock not available
Preloaded, Double Circuit, Round Ball Nut
with Load Lock
1.342 R
MAX.
Left Hand
Alloy Steel
240”
240”
7820596
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
Ø2.088
Right Hand
Alloy Steel
240”
240”
7820595
.520
5702654
5706754
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.870
(4x) Ø.397
Ø3.440 B.C.
1.967-18 UNS THD.
Note: Wiper kit does not include flange
end cap.
www.thomsonlinear.com
73
1.500 x 0.473
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
1.500 x 0.473
± 0.004
4.5
1.14
0.344
1
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
2.548-18 UNS THD.
1.977
MAX.
1.613 R
MAX.
p145
4.312
.875
Quick Install
Assembly
Wiper and Flange Kits
Wiper
Ø4.937
.137
Ø2.158
Wiper Part Number
Flange Part Number
Flange
.150
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut
Ø2.625
Right Hand
Alloy Steel
240”
240”
7820597
.895
Right Hand
Alloy Steel
10,050
57,770
1.34
3.94
5707513
5707573
5702655
Left Hand
5702655
5707573
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø1.870
(4x) Ø.531
Ø4.062 B.C.
2.548-18 UNS THD.
Note: Wiper kit does not include flange
end cap.
74
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
1.500 x 0.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
1.500 x 0.500
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
5.6
Screw Root Diameter (in.)
1.27
Nominal Ball Diameter (in.)
0.312
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
.460
1/8-27 NPT
LUBE HOLE
1.565
MAX.
2.360-18 UNS THD.
Ø2.620
1.890 R MAX.
5.565
.750
Quick Install
Assembly
p145
Preloaded, Double Circuit, Round Ball Nut
with Load Lock
1/8-27 NPT
LUBE HOLE
.460
50°
Ø3.114 MAX.
2.360-18 UNS THD.
1.565 Ø2.620
MAX.
1.890 R MAX.
p145
12.100 REF.
Quick Install
Assembly
Flange Kit
Flange
Ø4.620
.780
Left Hand
Alloy Steel
144”
144”
190-9109
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
50°
Right Hand
Alloy Steel
144”
288”
190-9108
.750
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
14,513
102,300
1.42
5.70
8115-448-016
8115-448-004
Internal
Left Hand
Alloy Steel
14,513
102,300
1.42
5.70
8115-448-018
8115-448-004
Internal
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
14,513
102,300
1.42
12.20
8115-448-006
8115-448-004
Internal
Left Hand
Wiper Part Number
Flange Part Number
8115-101-004
8115-448-004
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(4x) Ø.531
Ø3.875 B.C.
2.360-18 UNS THD.
www.thomsonlinear.com
75
1.500 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
1.500 x 1.000
± 0.004
5.6
1.14
0.344
2
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
2-1/4-20 UN THD.
1.718
MAX.
1.720 R
MAX.
p145
1.000
3.628
Quick Install
Assembly
Double Circuit, Square Ball Nut — High Speed
2.250-20 UN THD.
1.737 2.245 o
MAX.
1.000
3.628
1.960 R MAX.
Preloaded, Double Circuit, Square Ball Nut
Ø3.025 MAX.
2.250-20 UN THD.
1.718
MAX.
2.245 o
1.720 R MAX.
p145
Left Hand
Alloy Steel
240”
240”
7825925
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Square Ball Nut
2.245 o
Right Hand
Alloy Steel
144”
288”
7820598
7.628 REF.
1.000
Quick Install
Assembly
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
8,250
34,662
2.83
3.88
5708280
5707777
5702657
Left Hand
Alloy Steel
8,250
34,662
2.83
3.88
5701995
5707777
5702657
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
8,250
34,662
2.83
3.88
7833724
5707777
5702657
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
8,250
34,662
2.83
8.55
5700698
5707777
5702657
Left Hand
* Wiper kit included with this ball nut.
Wiper and Flange Kits
Wiper
Wiper Part Number
Flange Part Number
Flange
.150
Ø4.937
.178
5702657
5707777
1.020
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø2.180
(4x) Ø.531
Note: Wiper kit does not include flange
end cap.
76
Ø4.125 B.C.
2.250-20 UN THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
1.500 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
1.500 x 1.000
± 0.004
5.6
1.14
0.344
2
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Double Circuit, Round Ball Nut – High Speed
45°
1/4-28 UNF
LUBE HOLE
1.737
MAX.
2.250-20 UN THD.
.250
Ø2.620
1.000
3.620
1.960 R MAX.
Double Circuit, Round Ball Nut
2.250-20 UN THD.
1.737
MAX.
Ø2.620
1.960 R MAX.
1.000
3.620
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Right Hand
Alloy Steel
144”
288”
190-9107
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
8,250
34,662
2.83
3.90
8115-448-049
8115-448-002
Integral
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
8,250
34,662
2.83
3.90
8115-448-014
8115-448-002
Internal
Left Hand
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
www.thomsonlinear.com
77
1.500 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
1.500 x 1.000
± 0.004
5.6
1.14
0.344
2
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
2.250-20 UN THD.
1.737
MAX. Ø2.620
1.960 R MAX.
8.160 REF.
1.000
Wiper and Flange Kits
Wiper — 8115-101-012
Flange
.150
Ø4.940
.178
Ø2.336
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Preloaded, Double Circuit, Round Ball Nut
Ø3.114 MAX.
Right Hand
Alloy Steel
144”
288”
190-9107
1.020
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
8,250
47,800
2.83
8.60
8115-448-011
8115-448-002
Internal
Wiper Part Number (RND)
Flange Part Number
8115-101-004
8115-448-002
Left Hand
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
Ø2.180
(4x) Ø.531
Ø4.125 B.C.
2.250-20 UN THD.
Note: Wiper kit does not include flange
end cap.
78
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
1.500 x 1.875
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
1.500 x 1.875
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
5.3
Screw Root Diameter (in.)
1.19
Nominal Ball Diameter (in.)
0.281
Number of Starts
4
2.250-20 UN THD.
2.245 o
1.576
MAX.
1.680 R
MAX.
1.000
5.000
Quick Install
Assembly
Preloaded, Double Circuit, Square Ball Nut
Ø3.025 MAX.
2.250-20 UN THD.
1.576
MAX.
2.245 o
1.680 R
MAX.
1.000
10.625 REF.
Quick Install
1
4
Assembly
p145
2
3
Quad Circuit, Square Ball Nut
D
D
DATE
C
C
1.576 MAX
TYP
DWN
2.250-20 UN-2A THREAD
1.000
5.00
B
Wiper and Flange Kits
STICS
UNLESS OTHERWISE SPECIFIED
.02
F DRAWING SYMBOLS & TOLERANCES ON COMMON CENTERS
PER ASME Y14.5M-1994
MAX SURFACE ROUGHNESS 125
LINEAR DIMS ARE IN INCHES
PER ANSI B46.1-1985
ANGULAR DIMS ARE IN DEGREES
DIM LIMITS & SURFACE TEXTURE
C TOLERANCES: .XX = .02
DESIGNATIONS APPLY AFTER
.XXX = .010
PLATING/COATING
ANGULAR = .5
CAGE CODE
SIZE
EDGE/CORNER BREAKS .005-.015
FILLET RADII .015
S
TION
2
-
APPROVALS
CHECKED:
APPROVED:
DATE
.178
.150
A
Ø4.937
A
TM
Solutions by
628 N.HAMILTON STREET,SAGINAW,MI 48602
DWG TITLE:
6
7
SHEET:
DWG NO:
SCALE:
DRAWN IN PRO-E,WILD FIRE 5.0
REV
Note: Wiper kit does1not
include7833714
flange
OF 1
5707529
SLEEVE
end cap.
0.750
5703797
TIE, SELF LOCKING
www.thomsonlinear.com
NO OF
CIRCUITS
TURNS PER
CIRCUIT
HELIX
ANGLE
BALL GROOVE
FORM
BALL SIZE
QTY.
KEY PRODUCT CHARACTERISTICS
THOMSON
FIT/FUNCTION
THOMSON
SAFETY/COMPLIANCE
CUSTOMER
(NON-M.R.B.)
TOTAL NUMBER ON DRAWING
THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION PROPRIETARY TO THIS DOCUMENT MAY BE CONTROLLED UNDER EITHER THE INTERNATIONAL TRAFFIC
IN ARMS REGULATIONS ("ITAR") OR THE EXPORT ADMINISTRATION REGUALTIONS
LINEAR MOTION,LLC AND IS FURNISHED UPON THE EXPRESSED CONDITION
("EAR"). A LICENSE OR OTHER U.S. GOVERNMENT AUTHORIZATION MAY BE REQUIRED
THAT THIS INFORMATION WILL NOT BE USED OR DISCLOSED FOR SECOND
SOURCE PROCUREMENT OR USED OR DISCLOSED DIRECTLY OR INDIRECTLY TO EXPORT OR RE-EXPORT THIS DOCUMENT TO A FOREIGN PERSON OR FOREIGN ENTITY.
ANY DIVERSION CONTRARY TO U.S. EXPORT CONTROL LAWS IS STRICTLY PROHIBITED
IN ANY WAY DETRIMENTAL TO THE INTERESTS OF LINEAR MOTION,LLC.
1
Left Hand
1
THIRD ANGLE PROJECTION
2
(4x) Ø.531
Ø4.125 B.C.
Left Hand
DATE
DWN
5702658
5707777
2.250-20 UN THD.
RIGHT
1.500
1.875
.28125
APPROVALS
DATE
Note: Dimensional information for all End JournalsA and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
C
8
1
Right Hand
Alloy Steel
7,242
29,895
5.31
9.93
5704272
5707777
5702658
UNLESS OTHERWISE SPECIFIED
.02
F DRAWING SYMBOLS & TOLERANCES ON COMMON CENTERS
PER ASME Y14.5M-1994
MAX SURFACE ROUGHNESS 125
LINEAR DIMS ARE IN INCHES
PER ANSI B46.1-1985
ANGULAR DIMS ARE IN DEGREES
DIM LIMITS & SURFACE TEXTURE
TOLERANCES: .XX = .02
DESIGNATIONS APPLY AFTER
.XXX = .010
PLATING/COATING
ANGULAR = .5
CAGE CODE
SIZE
EDGE/CORNER BREAKS .005-.015
FILLET RADII .015
S
3
1
A
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
2
Wiper Kit Part Number
1.020
BALL GROOVE DATA
BALL GROOVE
HAND
BALL CIRCLE
DIAMETER
LEAD
FIRST ASSY:
ITEM NO. PART
NO.
DESCRIPTION
0A335
BØ2.336
MATERIAL:
Ø2.180
1
7833715
BALL1 NUT
1
4
2
5709013
GUIDE, RETURN TUBE
03/20/12
3
145630J. JOHNSON BALL
168
4
7823272
LABEL
1
BALL NUT
ASSY
5
5709857
CLAMP, PUNCH
LOK
Left Hand
Wiper Part Number
Flange Part Number
Flange
DRAWN:
Right Hand
Alloy Steel
7,242
29,895
5.31
4.22
5707654
5707777
5702658
Thread Direction
Right Hand
Nut Material
Alloy Steel
Dynamic Load (lbs)
14,484
Max. Static Load (lbs)
59,790
C
Torque to raise 1 lb (oz-in.) 1.576 MAX
5.31
TYP
Nut weight (lbs)
4.25
Ball Nut Part Number
7833714
R
Flange Part Number 1.680
5707777
MAX TYP
Wiper Kit Part Number
5702658 B
2.250
2.240
Wiper
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
D
1.680 R
MAX TYP
B
Left Hand
Alloy Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Square Ball Nut
p145
Right Hand
Alloy Steel
240”
240”
7820599
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
4
-
DRAWN:
CHECKED:
APPROVED:
TM
Solutions by
628 N.HAMILTON STREET,SAGINAW,MI 48602
DWG TITLE:
FIRST ASSY:
ITEM NO. PART
NO.
DESCRIPTION
0A335
B MATERIAL:
1
7833715
BALL1 NUT
1
2
5709013
GUIDE, RETURN TUBE
J.
JOHNSON
03/20/12
3
145630
BALL
168
4
7823272
LABEL
1
BALL
NUT
ASSY
5
5709857
CLAMP, PUNCH LOK
1
OF
1
7833714
6
5707529
SLEEVE
1
7
5703797
TIE,0.750
SELF LOCKING
SHEET:
DWG NO:
SCALE:
DRAWN IN PRO-E,WILD FIRE 5.0
REV
QTY.
8
1
A
1
79
1.500 x 2.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
1.500 x 2.000
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
5.6
Screw Root Diameter (in.)
1.21
Nominal Ball Diameter (in.)
0.281
Number of Starts
4
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
.500
1/8-27 NPT
LUBE HOLE
1.576
MAX.
2.250-20 UN THD.
Ø2.620
1.680 R MAX.
p145
5.250
1.000
Quick Install
Assembly
Double Circuit, Round Ball Nut with Load Lock —
High Speed
40°
.500
1/8-27 NPT
LUBE HOLE
1.576
MAX.
Flange Kit
Flange
Ø4.940
2.250-20 UN THD.
Ø2.620
1.680 R MAX.
1.020
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
50°
Right Hand
Alloy Steel
144”
288”
190-9345
5.250
1.000
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
7,600
29,000
5.66
5.00
8115-448-056
8115-448-002
Internal
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
7,600
29,000
5.66
5.00
8115-448-057
8115-448-002
Internal
Left Hand
Wiper Part Number
Flange Part Number
8115-101-004
8115-448-002
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(4x) Ø.531
Ø4.125 B.C.
80
2.250-20 UN THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
2.000 x 0.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
2.000 x 0.500
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
9.8
Screw Root Diameter (in.)
1.72
Nominal Ball Diameter (in.)
0.375
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
.500
3.000-12 UN THD.
1/8-27 NPT
LUBE HOLE
2.010
MAX.
Ø3.250
1.500
6.380
2.270 R MAX.
Quick Install
Assembly
p145
Preloaded, Double Circuit, Round Ball Nut
with Load Lock
.500
1/8-27 NPT
50° LUBE HOLE
Ø3.710 MAX.
3.000-12 UN THD.
2.010
MAX. Ø3.250
2.270 R MAX.
p145
Quick Install
Assembly
Flange Kit
Flange
Ø5.380
1.531
Left Hand
Alloy Steel
144”
288”
190-9113
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
50°
Right Hand
Alloy Steel
144”
288”
190-9112
13.920 REF.
1.500
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
18,500
154,635
1.42
8.00
8120-448-011
8120-448-002
Internal
Left Hand
Alloy Steel
18,500
154,635
1.42
8.00
8120-448-013
8120-448-002
Internal
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
18,500
154,635
1.42
19.25
8120-448-006
8120-448-002
Internal
Left Hand
Alloy Steel
18,500
154,635
1.42
19.25
8120-448-007
8120-448-002
Internal
Wiper Part Number
Flange Part Number
8120-101-002
8120-448-002
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(8x) Ø.656
Ø4.250 B.C.
3.000-12 UN THD.
www.thomsonlinear.com
81
2.000 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
2.000 x 1.000
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
9.8
Screw Root Diameter (in.)
1.72
Nominal Ball Diameter (in.)
0.375
Number of Starts
2
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1/8-27 NPT
LUBE HOLE
50°
2.330
MAX.
p145
3-12 UN THD.
Ø3.250
1.500
6.380 REF.
2.290 R MAX.
Quick Install
Assembly
Preloaded, Double Circuit, Round Ball Nut
with Load Lock
50°
.500
1/8-27 NPT
LUBE HOLE
Ø3.710 MAX.
3.000-12 UN THD.
.2.330 Ø3.250
MAX.
2.290 R MAX.
p145
Quick Install
Assembly
Flange Kit
Flange
Ø5.380
1.531
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
.500
Right Hand
Alloy Steel
144”
288”
190-9111
13.900 REF.
1.500
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
21,200
152,605
2.83
8.00
8120-448-021
8120-448-002
Internal
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
21,200
152,605
2.83
19.25
8120-448-019
8120-448-002
Internal
Left Hand
Wiper Part Number
Flange Part Number
8120-101-002
8120-448-002
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(8x) Ø.656
Ø4.250 B.C.
82
3.000-12 UN THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
2.250 x 0.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
2.250 x 0.500
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
10.9
Screw Root Diameter (in.)
1.85
Nominal Ball Diameter (in.)
0.375
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
3.137-12 UNS THD.
2.561
MAX.
2.272 R
MAX.
6.688
Left Hand
Alloy Steel
240”
240”
7820602
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
Ø3.375
Right Hand
Alloy Steel
240”
240”
7820600
1.562
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Right Hand
Alloy Steel
21,306
161,150
1.42
8.25
7833235
Left Hand
Alloy Steel
21,306
161,150
1.42
8.25
5704000 (1)
Flange Part Number
Wiper Kit Part Number*
5707574
Internal
5707574
Internal
(1) Load Lock not available
Flange Kit
Wiper Part Number
Flange Part Number
Flange
Ø5.375
1.582
5702659
5707574
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(6x) Ø.656
Ø4.375 B.C.
3.137-12 UNS THD.
www.thomsonlinear.com
83
2.250 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
2.250 x 1.000
± 0.004
10.9
1.85
0.375
2
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
3.137-12 UNS THD.
1.958
MAX.
2.300 R
MAX.
6.688
Flange Kit
Ø5.375
1.562
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
26,538
161,150
2.83
8.25
5704555
5707574
Internal
Wiper Part Number
Flange Part Number
Flange
1.582
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut
Ø3.375
Right Hand
Alloy Steel
240”
240”
7820604
Left Hand
5702659
5707574
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(6x) Ø.656
Ø4.375 B.C.
84
3.137-12 UNS THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
2.500 x 0.250
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
2.500 x 0.250
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
15.5
Screw Root Diameter (in.)
2.32
Nominal Ball Diameter (in.)
0.156
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
3.340-12 UNS THD.
2.306
MAX.
2.010 R
MAX.
3.750
.750
Preloaded, Triple Circuit, Round Ball Nut
with Integral Flange
Ø4.625
(5x) Ø.344 HOLES
ON Ø4.000 B.C.
Ø3.375
.250
60°
TYP
2.306
MAX.
2.010 R
MAX.
Flange Kit
Ø5.375
Ø.125 LUBE HOLE
.750
7.490 REF.
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
6,315
81,938
0.71
4.72
5703243
5703263
Internal
Left Hand
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number
Right Hand
Alloy Steel
6,315
81,938
0.71
9.94
7823590
Integral
Internal
Left Hand
Wiper Part Number
Flange Part Number
Flange
.770
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Triple Circuit, Round Ball Nut
Ø3.375
Right Hand
Alloy Steel
240”
240”
7820606
5703324
5703263
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(6x) Ø.656
Ø4.375 B.C.
3.340-12 UNS THD.
www.thomsonlinear.com
85
2.500 x 0.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
2.500 x 0.500
± 0.004
15.0
2.22
0.375
1
Double Circuit, Round Ball Nut with Load Lock
.500
50°
1/8-27 NPT
LUBE HOLE
2.371
MAX.
Ø4.000
2.770 R MAX.
Flange Kit
Flange
Ø6.000
3 5/8-12 UN THD.
1.780
6.750
1.750
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Right Hand
Alloy Steel
144”
288”
190-9116
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
22,981
186,000
1.42
13.00
8125-448-010
8125-448-002
Internal
Wiper Part Number
Flange Part Number
8125-101-002
8125-448-002
Left Hand
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(8x) Ø.656
Ø5.000 B.C.
86
3 5/8-12 UN THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
2.500 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
2.500 x 1.000
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
15.0
Screw Root Diameter (in.)
2.22
Nominal Ball Diameter (in.)
0.375
Number of Starts
2
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
1/8-27 NPT
LUBE HOLE
2.381
MAX.
Flange Kit
Flange
Ø6.000
.500
3 5/8-12 UN THD.
Ø4.000
2.660 R MAX.
1.780
6.750
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut with Load Lock
50°
Right Hand
Alloy Steel
144”
288”
190-9115
1.750
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
27,000
174,000
2.83
13.00
8125-448-008
8125-448-002
Internal
Wiper Part Number
Flange Part Number
8125-101-002
8125-448-002
Left Hand
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(8x) Ø.656
Ø5.000 B.C.
3 5/8-12 UN THD.
www.thomsonlinear.com
87
3.000 x 0.660
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
3.000 x 0.660
± 0.004
18.3
2.48
0.500
1
Triple Circuit, Round Ball Nut with Load Lock
.500
50°
1/8-27 NPT
LUBE HOLE
3.356
MAX.
Ø4.750
3.340 R MAX.
Flange Kit
Flange
Ø7.380
4.325-12 UNS THD.
2.020
2.000
9.320
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
Right Hand
Alloy Steel
144”
288”
190-9117
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
44,316
323,950
1.87
26.00
8130-448-007
8130-448-002
Internal
Wiper Part Number
Flange Part Number
8130-101-002
8130-448-002
Left Hand
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233
(8x) Ø.781
Ø6.250 B.C.
88
4.325-12 UNS THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
3.000 x 1.500
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
Lead Accuracy (in/ft)
Screw Weight (lbs/ft)
Screw Root Diameter (in.)
Nominal Ball Diameter (in.)
Number of Starts
3.000 x 1.500
± 0.004
19.3
2.48
0.500
2
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
4.325-12 UNS THD.
2.928 Ø4.750
MAX.
9.375
Flange Kit
Ø7.380
2.000
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
53,646
253,617
4.25
27.2
5704986
5707575
Internal
Wiper Part Number
Flange Part Number
Flange
2.020
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Double Circuit, Round Ball Nut
3.134 R
MAX
Right Hand
Alloy Steel
240”
240”
7820609
Left Hand
5702661
5707575
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233.
(8x) Ø.781
Ø6.250 B.C.
4.325-12 UNS THD.
www.thomsonlinear.com
89
4.000 x 1.000
Precision Rolled Ball Screws — Inch Series
Ball Screw Part Numbers
Diameter x Lead (in.)
4.000 x 1.000
Lead Accuracy (in/ft)
± 0.004
Screw Weight (lbs/ft)
34.4
Screw Root Diameter (in.)
3.34
Nominal Ball Diameter (in.)
0.625
Number of Starts
1
Thread Direction
Screw Material
Standard Length
Maximum Length
Part Number
5.497-12 UNS THD.
4.029
MAX.
1.995
3.756 R
MAX.
12.593
Flange Kit
Ø9.750
Thread Direction
Nut Material
Dynamic Load (lbs)
Max. Static Load (lbs)
Torque to raise 1 lb (oz-in.)
Nut weight (lbs)
Ball Nut Part Number
Flange Part Number
Wiper Kit Part Number*
Right Hand
Alloy Steel
85,758
476,970
2.83
53.5
5703258
5703307
Internal
Wiper Part Number
Flange Part Number
Flange
2.020
Left Hand
Alloy Steel
Right Hand
Stainless Steel
Ball screws can be cut to the length you require. Specify ball screw part number and
overall length at time of order.
Triple Circuit, Round Ball Nut with Load Lock
Ø5.875
Right Hand
Alloy Steel
240”
240”
5703262
Left Hand
5703306
5703307
* Wiper kit included with this ball nut.
Note: Dimensional information for all End Journals and Bearing Supports is available on
page 154. Information on required lubrication is on page 233
(6x) Ø1.031
Ø8.000 B.C.
90
5.497-12 UNS THD.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
Current and Historical Standard & Custom Ball Screw
Components, Inch Series
The Visual Product Reference section is intended to document the
many standard and custom ball screw components that have been
produced by Thomson and Warner Linear. This section is intended
to help identify existing customer product that may or may not
be still shown as featured product in this catalog. Most of these
products remain readily available for sale and can be ordered using
the part numbers shown. The following tables are organized by ball
nut shape and then sorted by ball circle diameter (BCD) and lead.
Please contact the factory for assistance if the correct ball nut or
screw cannot be identified or for any additional questions.
www.thomsonlinear.com
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
91
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
H
H
C
C
RD
A
RIGHT
SQ
LEFT
RD
A
RIGHT
SQ
Type A
Type B
H
H
H
C
C
RD
LEFT
A
RIGHT
SQ
C
A
RIGHT
RD
LEFT
Type C
A
RIGHT
RD
Type D
Type E
H
C
C
A
RIGHT
RD
RD
A
RIGHT
SQ
Type F
C
C
A
RD
LEFT
Type G
RIGHT
RD
RIGHT
Type H
A
LEFT
Type J
Pitch
Lead
Type Other
Pitch
Lead
Single Start
Pitch
Lead
Double Start
Four Start
2" BCD
Left Hand Screw
Right Hand Screw
Ball Circle Diameter (BCD)
Visual Product Reference Instructions
1. Visually determine the ball nut “Type” based on the above figures.
2. Narrow the choice by selecting the appropriate ball circle
diameter (BCD) and lead as defined in the figure above.
3. If the ball nut has an identifying model number, this will uniquely
identify the nut as shown in the 4th column of the tables.
Unmarked nuts are listed as Thomson and will require dimensions
to identify.
4. Count the number of ball return circuits and match to column 5.
5. Measure length, width/diameter, and V-thread (if applicable) of the
ball nut and match to columns 6 – 8.
92
6. Determine if the thread direction is left of right by matching nut
or screw (screw direction is shown in figure above) to provided
figures and locating in column 9.
7. If the ball nut is not available, determine the number of starts of
the screw (integral number of independent threads — see figures
above), measure the screw major diameter, and measure the
screw lead (distance between two adjacent turns of the screw
— see figure above). Screw information is provided in columns
11 – 13.
8. Determine if the screw and/or nut material is either carbon steel
(STEEL) or stainless steel (SS) and locate in column 14. Carbon
steel nuts are coated with black oxide or other finish to prevent
corrosion.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
Type A
H
Return: Single Circuit
Shape: Round or Square
Mounting: V-Thread
Backlash: Non-preloaded
C
A
RD
SQ
BCD Lead
Shape
(in.) (in.)
Nut
Model
RIGHT
Length
No. of
(in.)
Circuits
“A”
0.375
0.375
0.375
0.375
0.500
0.631
0.631
0.631
0.631
0.631
0.631
0.631
0.631
0.631
0.631
0.631
0.631
0.750
0.750
0.750
0.750
1.000
0.125
0.125
0.125
0.125
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.200
0.250
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
SQ
SQ
SQ
SQ
SQ
SQ
SQ
RD
RD
RD
RD
RD
Thomson
Thomson
Thomson
Thomson
RC0505
Thomson
RC0605
RC0605
RE0605
RK0605
Thomson
Thomson
Thomson
RQ0605
RQ0605
RR0605
RR0605
RC0705
RC0705
RC0705
RC0705STH
RC1004
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1.000
1.000
1.000
1.000
1.000
0.250
0.250
0.250
0.250
0.250
RD
RD
SQ
SQ
SQ
RC1004
RK1004
Thomson
Thomson
RQ1004
1
1
1
1
1
Width/
Dia.
(in.)
“C”
LEFT
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
0.664-32
0.664-32
0.664-32
11/16-28
0.875-14
1-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
1.173-18
1.173-18
1.25-18
1.125-18
Nut
P/N
Screw
P/N
Flange
P/N
Wiper
P/N
Cat.
Page
N/A
N/A
N/A
N/A
8105-101-002
N/A
8106-101-002
8106-101-002
8106-101-002
8106-101-002
5702647
5702647
5702647
N/A
N/A
N/A
N/A
8107-101-002
8107-101-002
N/A
N/A
48
48
48
1.000
1.000
1.000
1.170
1.750
1.710
1.710
1.710
1.710
1.710
1.710
1.710
1.710
1.710
1.710
1.710
1.710
1.880
1.880
1.880
1.880
0.750
0.750
0.750
0.750
1.062
1.125
1.125
1.125
1.125
1.125
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.312
1.312
1.312
1.312
RH
LH
RH
RH
RH
RH
RH
RH
LH
LH
RH
RH
LH
RH
RH
LH
LH
RH
RH
RH
RH
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
0.365
0.365
0.365
0.370
0.482
0.620
0.610
0.610
0.610
0.610
0.620
0.620
0.620
0.610
0.610
0.610
0.610
0.765
0.765
0.765
0.765
STEEL
STEEL
SS
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
SS
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
5709574
5709576
5709578
7831870
8105-448-023
7832206
8106-448-006
8106-448-009
8106-448-007
8106-448-008
5707645
7820827
7820828
8106-448-010
8106-448-022
8106-448-026
8106-448-011
8107-448-017
8107-448-018
8107-448-047
8107-448-026
5707538
5708532
5706540
7824974
190-9097
5707540
190-9098
190-9098
190-9099
190-9099
5705378
5707540
5707541
190-9098
190-9098
190-9099
190-9099
190-9101
190-9101
190-9101
190-9101
5706751
5706751
N/A
N/A
N/A
7832920
8105-448-002
8105-448-002
8105-448-002
8105-448-002
N/A
5707570
5707570
8105-448-002
8105-448-002
8105-448-002
8105-448-002
8107-448-007
8107-448-007
N/A
N/A
2.350
2.350
2.350
2.347
2.347
2.347
1.687 1-9/16-18 RH
1.687 1-9/16-18 RH
1.687 1-9/16-18 LH
1.500 1.563-18 RH
1.500 1.563-18 LH
1.500 1.563-18 RH
1
1
1
1
1
1
0.985
0.985
0.985
0.985
0.985
0.985
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
8110-448-029
8110-448-032
8110-448-030
5707508
5707535
8110-448-055
190-9104
190-9104
190-9105
7820426
7820428
190-9104
8110-448-002 8110-101-002
8110-448-002 8110-101-002 64
8110-448-002 8110-101-002 64
5707571
5702649
5707571
5702649
8110-448-002
N/A
64
51
54
54
54
54
54
58
58
58
Note: Manganese Phosphate coating provided as standard finish on Thomson ball screws not featured in catalog pages.
www.thomsonlinear.com
93
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
Type B
H
Return: Double Circuit
Shape: Round or Square
Mounting: V-Thread
Backlash: Non-preloaded
C
A
RD
BCD Lead
Shape
(in.) (in.)
0.500
0.500
0.500
0.500
0.500
0.500
0.631
0.750
0.750
0.750
0.750
0.750
1.000
1.000
1.000
1.000
1.000
1.000
1.500
1.500
1.500
1.500
0.500
0.500
0.500
0.500
0.500
0.500
1.000
0.500
0.500
0.500
0.500
0.500
0.500
0.500
1.000
1.000
1.000
1.000
1.000
1.000
1.000
1.000
RD
RD
RD
RD
SQ
SQ
RD
RD
RD
RD
RD
RD
RD
RD
RD
RD
SQ
SQ
RD
RD
SQ
SQ
1.500
1.500
1.500
1.500
1.500
1.500
1.500
2.000
2.250
2.500
3.000
4.000
1.000
1.000
1.000
1.000
1.875
2.000
2.000
1.000
1.000
1.000
1.500
1.000
SQ
SQ
SQ
SQ
SQ
RD
RD
RD
RD
RD
RD
RD
SQ
RIGHT
LEFT
Nut
Model
No. of
Circuits
Length
(in.)
“A”
Width/
Dia.
(in.)
“C”
R-0502
R-0502
R-0502
RS0502
Thomson
Thomson
Thomson
Thomson
R-0702
R-0702
R-0702
RS0702
Thomson
R-1002
R-1001
RS1001
Thomson
RF1001
R-1501
RH1501
Thomson
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2.750
2.750
2.750
2.750
1.875
1.875
1.710
2.995
2.930
2.930
2.930
2.930
3.120
3.120
3.000
3.000
3.000
3.000
3.620
3.620
3.628
1.062
1.060
1.062
1.062
1.000
1.000
1.125
1.300
1.312
1.312
1.312
1.312
1.625
1.687
1.687
1.687
1.500
1.500
2.620
2.620
2.250
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
1.25-18
1-1/4-16
1.25-18
1.173-18
1-1/4-16
1-9/16-18
1-9/16-18
1-9/16-18
1-9/16-18
1.563-18
1.563-18
2-1/4-20
2-1/4-20
2-1/4-20
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
RH
LH
2
2
2
2
2
2
2
2
2
2
2
2
2
2
4
4
4
4
2
2
2
0.510
0.510
0.510
0.510
0.490
0.490
0.620
0.729
0.765
0.765
0.765
0.765
0.974
1.015
0.985
0.985
0.985
0.985
1.480
1.480
1.480
Thomson
Thomson
Thomson
Thomson
Thomson
Thomson
R-1520
RH1520 HS
R-2001
Thomson
R-2501
Thomson
Thomson
2
2
2
2
2
2
2
2
2
2
2
2
3
3.628
3.628
3.628
3.628
3.628
5.000
5.260
5.260
6.380
6.688
6.750
9.313
12.593
2.250
2.250
2.245
2.245
2.245
2.250
2.620
2.620
3.250
3.375
4.000
4.750
5.875
2-1/4-20
2-1/4-20
2-1/4-20
2-1/4-20
2-1/4-20
2-1/4-20
2-1/4-20
2-1/4-20
3-12
3.137-12
3-5/8-12
4.325-12
5.497-12
RH
RH
RH
RH
LH
RH
RH
RH
RH
RH
RH
RH
RH
2
2
2
2
2
4
4
4
2
2
2
2
1
1.480
1.480
1.480
1.480
1.480
1.480
1.435
1.435
2.045
2.230
2.545
2.910
3.785
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
Nut
P/N
Screw
P/N
Flange
P/N
Wiper
P/N
Cat.
Page
STEEL
STEEL
SS
SS
STEEL
SS
STEEL
STEEL
STEEL
STEEL
STEEL
SS
STEEL
STEEL
STEEL
SS
STEEL
STEEL
STEEL
STEEL
STEEL
8105-448-011
8105-448-014
8105-448-016
8105-448-016
5709582
5709584
7826713
7824358
8107-448-014
8107-448-048
8107-448-049
8107-448-020
7824286
8110-448-022
8110-448-020
8110-448-034
5707509
190-9096
190-9096
190-9010
190-9010
5706740
5706846
7826712
7824361
190-9100
190-9100
190-9100
190-9006
7824290
190-9103
190-9102
190-9150
7820429
8105-448-002
8105-448-002
8105-448-002
8105-448-002
5707570
N/A
5707570
7823336
8107-448-002
N/A
8107-448-007
8107-448-020
5707571
8110-448-002
8110-448-002
8110-448-002
5707571
8105-101-002
8105-101-002
8105-101-002
8105-101-002
N/A
N/A
7827527
7824337
8107-101-002
N/A
8107-448-002
8107-101-002
7824292
8110-101-002
8110-101-002
8110-101-002
5702650
53
53
53
8110-448-086
8115-448-014
8115-448-049
5701995
190-9102 8110-448-002
N/A
190-9107 8115-448-002 8115-101-002
190-9107 8115-448-002 8115-101-004
7825925
5707777
5702657
68
77
77
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
5708280
20019711-10
5708280
7833724
5701995
5707654
8115-448-056
8115-448-057
8120-448-021
5704555
8125-448-008
5704986
5703258
7820598
7820598
7820598
7820598
7825925
7820599
190-9345
190-9345
190-9111
7820604
190-9115
7820609
5703262
5707777
5707777
5707777
5707777
5707777
5707777
8115-448-002
8115-448-002
8120-448-002
5707574
8125-448-002
5707575
5703307
5702657
5702657
5702657
5702657
5702657
5702658
8115-101-004
8115-101-004
8120-101-002
5702659
8125-448-002
5702661
5703306
57
53
61
61
61
67
68
68
76
76
76
79
80
80
82
84
87
89
90
Note: Manganese Phosphate coating provided as standard finish on Thomson ball screws not featured in catalog pages.
94
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
Type C
H
Return: Double Circuit
Shape: Round or Square
Mounting: V-Thread
Backlash: Non-preloaded
C
A
RD
SQ
RIGHT
LEFT
Width/
Major
Nut
Screw
Flange
Dia.
V-Thd. Thd. No. of
Screw Mat’l
P/N
P/N
P/N
“H”
Dir. Starts
(in.)
Dia.
“C”
5707502
5707538
5706751
0.375 0.125 RD Thomson
2
1.875 0.750 0.664-32 RH
1
0.365 STEEL
5707643
5706540
N/A
0.375 0.125 RD Thomson
2
1.875 0.750 0.664-32 RH
1
0.365 SS
5708282
5708532
5706751
0.375 0.125 RD Thomson
2
1.875 0.750 0.664-32 LH
1
0.365 STEEL
0.375 0.125 RD
R-0308
2
1.880 0.781 11/16-24 RH
1
0.380 STEEL 8103-448-003 190-9217 8103-448-002
N/A
0.375 0.125 RD R-0308LN
2
1.875 0.781 0.664-32 RH
1
0.380 STEEL 8103-448-013 190-9217
7826720
7826721
5707570
0.500 0.200 RD Thomson
2
2.600 1.030 15/16-16 RH
1
0.482 STEEL
0.500 0.200 RD
R-0505
2
2.750 1.062 15/16-16 RH
1
0.510 STEEL 8105-448-013 190-9097 8105-448-002
0.631 0.200 SQ
R-0605
2
2.860 1.000 15/16-16 RH
1
0.610 STEEL 8106-448-036 190-9098 8105-448-002
0.631 0.200 SQ
R-0605
2
2.030 1.000 15/16-16 LH
1
0.610 STEEL 8106-448-037 190-9099 8105-448-002
7824297
7824298
7823336
0.750 0.200 RD Thomson
2
2.635 1.300 1.25-18 RH
1
0.727 STEEL
0.750 0.200 RD
R-0705
2
2.880 1.312 1.173-18 RH
1
0.765 STEEL 8107-448-016 190-9101 8107-448-007
N/A
0.750 0.200 RD
R-0705
2
2.880 1.312 1.25-18 RH
1
0.765 STEEL 8107-448-046 190-9101
N/A
0.750 0.200 RD R-0705STH
2
2.880 1.312 1.125-18 RH
1
0.765 STEEL 8107-448-027 190-9101
5708277
5708859
5708281
0.875 0.200 RD Thomson
2
2.704 1.615 1-3/8-16 RH
1
0.852 STEEL
1.000 0.250 RD
R-1004
2
3.130 1.687 1-9/16-18 RH
1
0.985 STEEL 8110-448-026 190-9104 8110-448-002
1.000 0.250 RD
RL1004
2
3.130 1.687 1-9/16-18 LH
1
0.985 STEEL 8110-448-024 190-9105 8100-448-002
5700348
7820426
5707571
1.000 0.250 SQ Thomson
2
3.000 1.500 1.563-18 RH
1
0.985 STEEL
1.000 0.250 SQ
RF1004
2
3.000 1.500 1.563-18 RH
1
0.985 STEEL 8110-448-056 190-9104 8110-448-002
5701566
7820430
5708283
1.150 0.200 RD Thomson
2
2.500 1.687 1-5/8-20 RH
1
1.130 STEEL
7820207
7820431
5708283
1.150 0.200 RD Thomson
2
2.500 1.687 1-5/8-20 LH
1
1.130 STEEL
1.150 0.200 RD
R-1105
2
2.500 1.687 1-5/8-20 RH
1
1.130 STEEL 8111-448-006 190-9106 8111-448-002
5707511
7820432
5707572
1.171 0.413 RD Thomson
2
3.375 2.125 1.967-18 RH
1
1.160 STEEL
5701990
7820596
5706754
1.500 0.250 RD Thomson
2
2.875 2.088 1.967-18 LH
1
1.485 STEEL
5709587
7820595
5706754
1.500 0.250 RD Thomson
2
2.875 2.088 1.967-18 RH
1
1.485 STEEL
7833233
7820595
5706754
1.500 0.250 RD Thomson
2
2.875 2.088 1.967-18 RH
1
1.485 STEEL
1.500 0.250 RD
R-1504
2
3.250 2.093 1.967-18 RH
1
1.515 STEEL 8115-448-020 190-9110 8115-448-009
5707513
7820597
5707573
1.500 0.473 RD Thomson
2
4.312 2.625 2.548-18 RH
1
1.470 STEEL
5708345
7820597
N/A
1.500 0.473 RD Thomson
2
3.625 2.625
N/A
RH
1
1.470 STEEL
1.500 0.473 RD
R-1547
2
4.307 2.620 2.548-18 RH
1
1.415 STEEL 8115-448-055 190-9328 8115-448-064
7824246
7824253
7824250
1.500 0.500 RD Thomson
2
5.590 2.623 2.375-16 RH
1
1.470 STEEL
1.500 0.500 RD
R-1502
2
5.565 2.620 2.360-18 RH
1
1.535 STEEL 8115-448-016 190-9108 8115-448-018
1.500 0.500 RD
RL1502
2
5.565 2.620 2.360-18 LH
1
1.535 STEEL 8115-448-018 190-9109 8115-448-004
2.000 0.500 RD
R-2002
2
6.380 3.250
3-12
RH
1
2.045 STEEL 8120-448-011 190-9112 8120-448-002
2.000 0.500 RD
RL2002
2
6.380 3.250
3-12
LH
1
2.045 STEEL 8120-448-013 190-9113 8120-448-002
5704000
7820602
5707574
2.250 0.500 RD Thomson
2
6.688 3.375 3.137-12 LH
1
2.230 STEEL
5707516
7820600
5707574
2.250 0.500 RD Thomson
2
6.688 3.375 3.137-12 RH
1
2.230 STEEL
7833235
7820600
5707574
2.250 0.500 RD Thomson
2
6.688 3.375 3.137-12 RH
1
2.230 STEEL
5708346
7820600
N/A
2.250 0.500 RD Thomson
2
5.250 3.376
N/A
RH
1
2.230 STEEL
7830722
7820602
N/A
2.250 0.500 RD Thomson
2
5.250 3.376
N/A
LH
1
2.230 STEEL
N/A
2.250 0.500 RD
R-2202
2
6.680 3.370 3.137-12 RH
1
2.180 STEEL 8122-448-005 190-9114
7824136
7824262
7824141
2.500 0.500 RD Thomson
2
6.750 3.625 3.5-12 RH
1
2.480 STEEL
2.500 0.500 RD
R-2502
2
6.750 4.000 3-5/8-12 RH
1
2.545 STEEL 8125-448-010 190-9116 8125-448-002
Note: Manganese Phosphate coating provided as standard finish on Thomson ball screws not featured in catalog pages.
BCD Lead
Shape
(in.) (in.)
Nut
Model
www.thomsonlinear.com
No. of
Circuits
Length
(in.)
“A”
Wiper
P/N
N/A
N/A
N/A
8103-101-002
8103-101-002
7826759
8105-101-002
N/A
N/A
7824337
8107-101-002
N/A
N/A
7831512
8110-101-002
8110-101-002
5702649
N/A
5702652
5702652
8111-101-002
5702653
5702654
5702654
5702654
8115-101-006
5702655
5702656
8115-101-004
7824251
8115-101-004
8115-101-004
8120-101-002
8120-101-002
5702659
5702659
5702659
5702659
5702659
8122-101-002
7824140
8125-101-002
Cat.
Page
49
49
52
55
56
59
59
59
63
65
65
64
71
72
73
73
74
75
75
81
81
83
83
86
95
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
Type D
H
Return: Triple Circuit
Shape: Round
Mounting: V-Thread
Backlash: Non-preloaded
C
A
RD
BCD Lead
Shape
(in.) (in.)
2.500
3.000
3.000
3.000
4.000
6.000
0.250
0.660
0.660
0.660
1.000
1.000
RD
RD
RD
RD
RD
RD
RIGHT
Nut
Model
No. of
Circuits
Length
(in.)
“A”
Width/
Dia.
(in.)
“C”
Thomson
Thomson
Thomson
R-3066
Thomson
Thomson
3
3
3
3
3
3
3.750
9.313
7.000
9.320
12.593
14.438
3.375
4.750
4.750
4.750
5.875
9.000
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
3.34-12
4.325-12
N/A
4.325-12
5.497-12
8.5-8
RH
RH
RH
RH
RH
RH
1
1
1
1
1
1
2.485
2.965
2.965
2.950
3.795
5.795
Nut
P/N
Screw
P/N
Flange
P/N
Wiper
P/N
STEEL
5703243
7820606
5703263
5703324
STEEL
5707519
7820607
5707575
5702661
STEEL
5708347
7820607
N/A
5702662
STEEL 8130-448-007 190-9117 8130-448-002 8130-101-002
STEEL
5703258
5703262
5703307
5703306
STEEL
5704738
5704762
5704764
5704746
Cat.
Page
85
88
90
Type E
H
Return: Single-Liner
Shape: Round
Mounting: V-Thread
Backlash: Non-preloaded
C
A
RD
BCD Lead
Shape
(in.) (in.)
0.375 0.125
0.631 0.200
RD
RD
RIGHT
Nut
Model
No. of
Circuits
Length
(in.)
“A”
Width/
Dia.
(in.)
“C”
RC0308
Thomson
1
3
0.988
1.850
0.825
1.130
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
11/16-24 RH
15/16-16 RH
1
1
Nut
P/N
Screw
P/N
0.380 STEEL 8103-448-008 190-9217
7832872
7832873
0.620 STEEL
Flange
P/N
Wiper
P/N
Cat.
Page
N/A
5707570
8103-101-002
INTEGRAL
56
Type F
Return: Single-Liner
Shape: Round
Mounting: Cylindrical
Backlash: Non-preloaded
C
A
RD
BCD Lead
Shape
(in.) (in.)
0.187
0.187
0.187
0.187
0.050
0.050
0.063
0.063
RD
RD
RD
RD
RIGHT
Nut
Model
No. of
Circuits
Length
(in.)
“A”
Width/
Dia.
(in.)
“C”
Thomson
Thomson
Thomson
Thomson
2
2
2
2
0.594
0.594
0.594
0.594
0.500
0.500
0.500
0.500
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
N/A
N/A
N/A
N/A
RH
RH
RH
RH
1
1
1
1
0.178 SS
0.178 EPOXY
0.178 SS
0.178 EPOXY
Nut
P/N
Screw
P/N
Flange
P/N
Wiper
P/N
Cat.
Page
7821609
7821632
7821579
7821631
7821634
7821634
7821633
7821633
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
46
47
Note: Manganese Phosphate coating provided as standard finish on Thomson ball screws not featured in catalog pages.
96
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
Type G
H
Return: See Table
Shape: Round or Square
Mounting: V-Thread
Backlash: Preloaded
C
A
RD
SQ
BCD Lead
Shape
(in.) (in.)
0.375
0.500
0.500
0.500
0.631
0.631
0.631
0.631
0.631
0.631
0.750
0.750
0.750
1.000
1.000
1.000
1.000
1.150
1.150
1.150
1.500
1.500
1.500
1.500
1.500
1.500
1.500
2.000
2.000
2.000
0.125
0.200
0.500
0.500
0.200
0.200
0.200
0.200
0.200
1.000
0.200
0.500
0.500
0.250
0.250
0.500
1.000
0.200
0.200
0.200
0.250
0.250
0.250
0.500
1.000
1.000
1.875
0.500
0.500
1.000
RD
RD
RD
SQ
RD
RD
SQ
SQ
SQ
RD
RD
RD
RD
SQ
SQ
RD
SQ
RD
RD
RD
RD
RD
RD
RD
RD
SQ
SQ
RD
RD
RD
RIGHT
Nut
Model
No. of
Circuits
Length
(in.)
“A”
Width/
Dia.
(in.)
“C”
RP0308
RP0505
RP0502
Thomson
RD0605
RE0605
Thomson
Thomson
RDO605
Thomson
RD0705
Thomson
RP0705
Thomson
Thomson
RP1002
Thomson
Thomson
Thomson
RP1105
Thomson
Thomson
Thomson
RP1502
RP1501
Thomson
Thomson
RP2002
RT2002
RP2001
2X2
2X2
2X2
2X2
2X1
2X1
2X1
2X1
2X1
2X2
2X1
2X2
2X2
2X1
2X1
2X2
2
2X1
2X1
2X2
2X2
2X2
2X2
2X2
2X2
2X2
2X2
2X2
2X2
2X2
4.130
5.950
6.000
3.875
3.797
3.797
3.510
3.510
3.825
3.440
4.080
5.750
6.180
4.847
4.847
6.640
6.000
3.704
3.704
5.500
6.375
6.375
6.375
12.100
8.160
7.628
10.625
13.920
13.920
13.900
0.781
1.062
1.060
1.000
1.125
1.125
1.000
1.000
1.000
1.125
1.312
1.300
1.312
1.500
1.500
1.687
1.500
1.687
1.687
1.687
2.088
2.088
2.088
2.620
2.620
2.250
2.245
3.250
3.250
3.250
LEFT
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
11/16-24
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
15/16-16
1.173-18
1.25-18
1.250-16
1.563-18
1.563-18
1.563-18
1.563-18
1-5/8-20
1-5/8-20
1.625-20
1.967-18
1.967-18
1.967-18
2.360-18
2-1/4-20
2-1/4-20
2-1/4-20
3-12
3-12
3-12
RH
RH
RH
RH
RH
LH
RH
LH
RH
RH
RH
RH
RH
RH
LH
RH
RH
RH
LH
RH
RH
RH
LH
RH
RH
RH
RH
RH
LH
RH
1
1
2
2
1
1
1
1
1
4
1
2
1
1
1
2
4
1
1
1
1
1
1
1
2
2
4
1
1
2
0.380
0.510
0.510
0.490
0.610
0.610
0.620
0.620
0.610
0.620
0.765
0.729
0.765
0.985
0.985
1.015
0.985
1.130
1.130
1.130
1.485
1.485
1.485
1.535
1.480
1.480
1.480
2.045
2.045
2.045
STEEL
STEEL
SS
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
Nut
P/N
Screw
P/N
Flange
P/N
Wiper
P/N
8103-448-004
8105-448-008
8105-448-009
7826767
8106-448-015
8106-448-019
7820955
7820956
8106-448-012
7827531
8107-448-025
7826991
8107-448-011
5704167
5704168
8110-448-016
7829720
5704270
7820206
8111-448-004
5704271
7833234
5704573
8115-448-006
8115-448-011
5700698
5704272
8120-448-006
8120-448-007
8120-448-019
190-9217
190-9097
190-9096
5706740
190-9098
190-9099
5707540
5707541
190-9098
7826712
190-9101
7824361
190-9100
7820426
7820428
190-9103
7820429
7820430
7820431
190-9106
7820595
7820595
7820596
190-9108
190-9107
7820598
7820599
190-9112
190-9113
190-9111
N/A
8105-448-002
8105-448-002
5707570
8105-448-002
8105-448-002
5707570
5707570
8105-448-002
5707570
8107-448-007
7823336
8107-448-002
5707571
5707571
8110-448-002
5707571
5708283
5708283
8111-448-002
5706754
5706754
5706754
8115-448-004
8115-448-002
5707777
5707777
8120-448-002
8120-448-002
8120-448-002
8103-101-002
8105-101-002
8105-101-002
N/A
8106-101-002
8106-101-002
5702647
5702647
N/A
7827527
8107-101-002
7824337
8107-101-002
5702649
5702649
8110-101-002
5702650
5702652
5702652
8111-101-002
5702654
5702654
5702654
8115-101-004
8115-101-004
5702657
5702658
8120-101-002
8120-101-002
8120-101-002
Cat.
Page
52
55
55
55
57
60
62
66
66
67
71
73
73
75
77
78
79
81
81
82
Note: Manganese Phosphate coating provided as standard finish on Thomson ball screws not featured in catalog pages.
www.thomsonlinear.com
97
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
Type H
Return: See Table
Shape: Round
Mounting: Flange
Backlash: Preloaded
C
A
RD
BCD Lead
Shape
(in.) (in.)
0.631
0.875
0.875
1.000
1.150
1.500
2.250
2.500
3.000
0.200
0.200
0.200
0.250
0.200
0.250
0.500
0.250
0.660
RD
RD
RD
RD
RD
RD
RD
RD
RD
Nut
Model
No. of
Circuits
Length
(in.)
“A”
Width/
Dia.
(in.)
“C”
Thomson
Thomson
Thomson
Thomson
Thomson
Thomson
Thomson
Thomson
Thomson
2X1
2X1
2X1
2X1
2X1
2X2
2X2
2X3
2X3
3.775
3.835
3.835
4.438
3.821
6.845
13.787
7.490
18.549
1.130
1.250
1.250
1.620
1.688
2.088
3.375
3.375
4.750
RIGHT
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
RH
RH
RH
RH
RH
RH
RH
RH
RH
1
1
1
1
4
1
1
1
1
0.620
0.852
0.852
0.985
1.130
1.485
2.230
2.485
2.965
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
STEEL
Nut
P/N
Screw
P/N
Flange
P/N
Wiper
P/N
7823584
7823585
7833677
7823586
7823587
7823588
7823589
7823590
5703045
5707540
5708859
5708859
7820426
7820430
7820595
7820600
7820606
7820607
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
Cat.
Page
63
66
70
85
Type J
Return: Double Circuit
Shape: Round
Mounting: Flange
Backlash: Non-preloaded
C
RD
BCD Lead
Shape
(in.) (in.)
1.000
1.000
1.000
1.000
0.250
0.250
0.250
0.250
RD
RD
RD
RD
RIGHT
Nut
Model
No. of
Circuits
Length
(in.)
“A”
Width/
Dia.
(in.)
“C”
Thomson
Thomson
R-1004F
RL1004F
2
2
2
2
3.000
3.000
3.000
3.000
1.625
1.625
1.625
1.625
A
LEFT
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
N/A
N/A
N/A
N/A
RH
LH
RH
LH
1
1
1
1
0.985
0.985
0.985
0.985
Nut
P/N
Screw
P/N
5708278
7820426
STEEL
5708284
7820428
STEEL
STEEL 8110-448-087 190-9104
STEEL 8110-448-088 190-9105
Flange
P/N
Wiper
P/N
Cat.
Page
INTEGRAL
INTEGRAL
INTEGRAL
INTEGRAL
5702651
5702651
5702651
5702651
65
65
Note: Manganese Phosphate coating provided as standard finish on Thomson ball screws not featured in catalog pages.
98
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Lead Screws, Ball Screws and Ball Splines
Visual Product Reference — Precision Rolled Ball Screws — Inch Series
Type Other
Return: See Table
Shape: Miscellaneous
Mounting: Miscellaneous
Backlash: Miscellaneous
BCD Lead
Shape
(in.) (in.)
0.312
0.375
0.375
0.500
0.500
0.500
0.750
1.500
0.100
0.063
0.125
0.200
0.500
0.500
0.200
1.875
RD
RD
RD
RD
RD
RD
RD
SQ
Nut
Model
No. of
Circuits
Length
(in.)
“A”
Width/
Dia.
(in.)
“C”
Thomson
Thomson
Thomson
Thomson
Thomson
Thomson
Thomson
Thomson
4
8
1
3
2
2
4
4
1.180
1.180
0.677
1.660
1.500
1.500
1.800
5.000
0.625
0.750
0.749
0.943
1.320
1.320
1.297
2.290
Major
V-Thd. Thd. No. of
Screw Mat’l
“H”
Dir. Starts
Dia.
0.586-32
11/16-32
N/A
N/A
N/A
N/A
N/A
2 1/4-20
RH
RH
RH
RH
RH
RH
RH
RH
1
1
1
1
2
2
1
1
0.292
0.3685
0.482
0.482
0.490
0.490
0.734
1.480
STEEL
STEEL
STEEL
STEEL
STEEL
SS
STEEL
STEEL
Nut
P/N
Screw
P/N
Flange
P/N
Wiper
P/N
Cat.
Page
7832875
7832874
7824973
7826763
5707506
5707644
7826768
7833714
7832897
7832894
7824974
7826721
5706740
5706846
7826770
7820599
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
N/A
INTEGRAL
N/A
N/A
INTEGRAL
N/A
79
Note: Manganese Phosphate coating provided as standard finish on Thomson ball screws not featured in catalog pages.
Note: These ball nuts available for high quantity purchase only (100 piece minimum order required).
www.thomsonlinear.com
99
NOTES:
100
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Lead Screws, Ball Screws and Ball Splines
Precision Plus Ball Screws — Inch Series
High accuracy and stiffness with zero backlash,
for stringent applications where ball screw performance
is critical.
Thomson Precision Plus Ball Screw Assemblies provide the
positioning accuracy and repeatability required for the most
stringent positioning applications. Thomson assemblies are
designed and manufactured to provide 8 times the lead accuracy
of conventional ball screws (± .0005 in/ft), and provide consistent,
zero-backlash, preload for high repeatability. All ball nuts feature
an integral flange for optimal precision and mounting ease, and
specially designed seals/wipers that provide superior lubricant
retention while keeping out harmful contaminants. Precision Plus
Assemblies are ideal for machine tools, robots, semi-conductor/
electronic assembly systems, and many more applications where
high-level ball screw performance is required.
www.thomsonlinear.com
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
101
Precision Plus Ball Screws — Inch Series
Lead Accuracy: ± .0005 in/ft
Preloaded, Round Ball Nut with Integral Flange and Wiper
• Precision machined for highly accurate and smooth running performance
• Long-lasting preload for minimal backlash and consistent stiffness
• Standard sizes stocked for quick delivery. Additional sizes are available as custom product.
Ball Nut Details
Nominal
Diameter
(size)
Lead
(in.)
(in.)
0.631
0.750
0.875
1.000
1.000
1.150
1.250
1.250
1.250
1.500
1.500
1.500
1.750
2.000
2.250
2.500
0.200
0.200
0.200
0.200
0.250
0.200
0.200
0.200
0.500
0.200
0.250
0.500
0.200
0.200
0.500
0.250
Ball Screw
and Nut
Assembly
P/N(1)(2)(3)
7820396
5700974
7820397
5700975
7820477
5700976
5700977
7820830
7820399
7820375
7820965
7820401
5700979
7820402
7820484
7820483
Direction
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
Left Hand
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
Right Hand
No. of
Return
Tubes
2
2
2
2
2
2
2
2
2
4
4
2
4
6
2
6
Performance Data
Screw Specifications
Dynamic
Load
Capacity
(Cam)
Static
Load
Capacity
(Co)
Max.
Axial
Backlash
Major
Diameter
(max.)
Minor
Diameter
Standard
Length
Screw
Weight
(lbf)
(lbf)
(in.)
(in.)
(in.)
(in.)
(lb/ft)
440
1,473
1,375
1,565
2,285
1,680
1,800
1,800
1,765
4,745
4,250
5,075
4,464
6,181
20,160
8,945
2,110
9,916
10,780
13,073
15,815
14,886
16,625
16,625
11,080
45,073
27,250
35,770
47,446
65,903
108,325
93,165
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.611
0.750
0.875
1.000
1.000
1.130
1.250
1.235
1.250
1.500
1.500
1.500
1.750
2.000
2.250
2.500
0.496
0.599
0.740
0.865
0.833
1.015
1.115
1.115
1.050
1.349
1.333
1.236
1.615
1.849
1.858
2.333
42
42
60
72
72
72
72
72
96
120
120
120
96
120
120
120
0.90
1.45
1.78
2.20
2.20
3.18
3.75
3.75
3.77
5.18
5.18
4.79
7.56
9.81
10.87
15.46
(1) All Precision Plus product is sold in matched sets as ball screw and nut assemblies.
(2) Dimensional information on bearing supports and standard end machining is available on page 154.
(3) Information on required lubrication is on page 233.
102
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Lead Screws, Ball Screws and Ball Splines
Precision Plus Ball Screws — Inch Series
D6
L2
1/4 - 28 UNF THD.
60°
TYP.
L5
MINOR MAJOR
Ø
Ø
D1
L3
(5 x) Ø D5 ON D4
BOLT CIRCLE
L1
L4
L
Nut Specifications
Nominal
Diameter
(size)
Lead
D1
D4
D5
D6
L
L1
L2
L3
L4
(max.)
L5
(max.)
Nut
Weight
Ball
Diameter
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
(in.)
(lb)
(in.)
0.631
0.750
0.875
1.000
1.000
1.150
1.250
1.250
1.250
1.500
1.500
1.500
1.750
2.000
2.250
2.500
0.200
0.200
0.200
0.200
0.250
0.200
0.200
0.200
0.500
0.200
0.250
0.500
0.200
0.200
0.500
0.250
1.130
1.370
1.250
1.620
1.685
1.685
1.645
1.650
1.990
2.020
2.020
2.250
2.265
2.500
3.375
3.375
1.562
1.875
1.750
2.250
2.250
2.280
2.312
2.312
3.124
2.750
2.750
3.125
3.250
3.250
4.375
4.000
0.281
0.281
0.281
0.281
0.344
0.344
0.344
0.344
0.406
0.344
0.344
0.406
0.406
0.406
0.656
0.344
2.000
2.320
2.250
2.750
2.875
2.875
2.770
2.770
3.865
3.500
3.500
3.875
4.000
4.000
5.375
4.625
2.200
3.000
3.000
3.000
3.370
3.000
3.000
3.000
3.580
5.000
5.000
4.625
5.000
5.750
8.125
6.250
0.375
0.500
0.500
0.500
0.500
0.500
0.500
0.500
0.625
0.625
0.625
0.625
0.625
0.700
1.250
0.750
0.200
0.312
0.312
0.312
0.312
0.312
0.312
0.312
0.410
0.375
0.375
0.410
0.375
0.438
0.812
0.500
2.750
2.750
2.750
3.750
3.750
3.750
3.750
3.750
3.750
3.750
3.750
3.750
4.750
4.750
4.750
4.750
0.849
0.996
0.891
1.042
1.100
1.067
1.109
1.109
1.356
1.273
1.290
1.575
1.352
1.550
2.259
2.010
0.710
0.855
1.024
1.134
1.203
1.287
1.248
1.248
1.531
1.758
1.520
1.900
1.878
1.900
2.535
2.609
0.66
1.26
0.92
1.63
1.98
1.61
1.31
1.31
3.43
3.17
3.17
4.27
3.81
4.39
16.29
8.81
0.125
0.141
0.125
0.125
0.156
0.125
0.125
0.125
0.188
0.141
0.156
0.250
0.125
0.141
0.375
0.156
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103
NOTES:
104
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Lead Screws, Ball Screws and Ball Splines
Metric Ball Screws
Table of Contents
DescriptionPage
Product Overview........................................................................................ 106
Miniature Rolled Ball Screws — Metric Series.................................... 113
Thomson NEFF Rolled Ball Screws — Metric Series........................... 119
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
Precision Plus Ball Screws —Metric Series......................................... 135
www.thomsonlinear.com
105
Metric Ball Screws Product Overview
Superior performance for today’s most stringent positioning requirements.
Thomson has a wide range of internal return metric ball screw products, featuring four distinct product families — Miniature, Thomson NEFF
and Precision Plus. Each family is designed to meet unique application requirements.
Miniature Rolled Ball Screws (page 113)
Precision Plus Ball Screws (page 135)
Miniature Rolled Ball Screw Assemblies are an efficient, costeffective solution in a small envelope. Ball screw assemblies range
from 4mm to 14mm in diameter, with standard lead accuracies of
52 microns/300mm. Miniature Rolled Ball Screws are ideal for
laboratory, semiconductor, and medical applications.
Precision Plus Ball Screw Assemblies are our highest precision
product, with standard lead accuracies of 12 microns/300mm. These
ball screw assemblies feature our FL-style ball nut, precisely
preloaded to customer specifications. This unique nut design
provides high repeatability and high stiffness for the most demanding
ball screw applications. Each nut comes standard with an integral
plastic wiper to protect against chips and other debris. Precision
Plus Ball Screws are ideal for applications requiring high
repeatability and high stiffness (e.g., high precision machine tool).
Miniature ball screws are available in two nut styles.
Precision Plus screws are available with our FL style nut.
TSI
PRM
Miniature
Miniature
FL
Flanged
Thomson NEFF Rolled Ball Screws (page 119)
Thomson NEFF Rolled Ball Screw Assemblies are designed and manufactured to provide high level performance at an affordable price. Ball screws
are manufactured using Thomson’s patented, German-engineered Precision Screw Forming (PST) Technology, which provides high accuracy (23
microns/300mm standard) with the manufacturing efficiency of rolled processes. Ball Screw Assemblies are available in a wide range of diameters,
leads, and nut styles - all designed to provide quiet, smooth running, and efficient performance. Ball nuts include one of three unique ball return
systems (depending on the diameter and lead of the screw used) providing perfect guidance, low wear, and smooth running performance. Thomson
NEFF Rolled Ball Screw Assemblies are ideal for machining centers, factory automation, packaging, injection molding, wood working, water jet
cutting, electronic assembly, and medical applications.
Thomson NEFF ball screws are available in seven nut styles.
ZG
KGF-D
KGF-N
Flanged
Flanged
Flanged
FH
KGM-D
KGM-N
Flanged
Cylindrical
Cylindrical
Threaded
106
FK
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Lead Screws, Ball Screws and Ball Splines
Metric Ball Screws Product Overview
An overview of ball screw sizes available within each product family is shown below. Refer to individual product family sections for additional details.
Miniature Rolled Ball Screws — Product Availability (page 113)
1mm
2mm
2.5mm
3mm
4mm
5mm
6mm
8mm
10mm
12mm
15mm
20mm
12mm
15mm
20mm
25mm
32mm
40mm
50mm
12mm
15mm
20mm
25mm
32mm
40mm
50mm
4mm
5mm
6mm
8mm
10mm
12mm
13mm
14mm
Thomson NEFF Rolled Ball Screws — Product Availability (page 119)
1mm
2mm
4mm
5mm
6mm
8mm
10mm
12mm
16mm
20mm
25mm
32mm
40mm
50mm
63mm
80mm
Precision Plus Ball Screws — Product Availability* (page 135)
1mm
2mm
4mm
5mm
6mm
8mm
10mm
16mm
20mm
25mm
32mm
40mm
50mm
63mm
* Additional ground ball screw sizes are available in diameters up to 200mm. Contact us for more details.
www.thomsonlinear.com
107
Metric Ball Screws Product Overview
The Thomson series of metric ball screws includes two families of rolled ball screws (Miniature, Thomson NEFF) with four nut styles — Miniature,
Cylindrical, Threaded and Flanged. An overview of our rolled product offering is organized by nut style, below. Refer to individual product family
sections for additional details.
30°
Miniature Ball Nuts
30°
(4x) ØX
Type A
Threaded
Dp
Miniature: TSI, PRM
L
ØD
ØDf
Return: Internal
Style: Miniature
Mounting: Flanged, Threaded
Backlash: Non-preloaded
Thread Direction: Right Hand
L1
L
30°
D
30°
Type B
(4x) ØX
Dp
THD
ØD
ØDf
L
Nominal
Diameter
Lead
(mm)
4
5
6
6
6
8
8
8
8
8
8
8
8
10
10
10
10
10
10
10
10
12
12
12
13
13
14
14
14
(mm)
1
4
1
2
6
1
2
2
2.5
3
5
8
12
2
2
3
4
10
10
15
20
2
2
3
12
20
2
3
4
108
Dynamic
Load
Capacity
(Cam)
(kN)
0.6
0.5
0.7
1.6
0.9
0.8
2.4
2.3
3.1
2.7
1.9
2.2
2.2
2.7
2.7
6.7
5.8
3.3
4.1
3.3
2.1
3.0
4.5
9.6
5.0
5.0
3.2
6.7
5.7
Length
L
Width/
Diameter
D
Ball Nut
Form
(mm)
17.0
22.0
17.0
22.0
17.0
17.0
24.0
24.0
24.0
25.0
28.0
20.0
27.0
24.0
22.0
29.0
35.0
24.0
35.0
33.0
23.0
24.0
40.0
40.0
30.0
43.0
25.0
35.0
33.0
(mm)
11.0
12.0
13.0
16.0
14.0
16.0
20.0
18.0
18.0
18.0
18.0
18.0
18.0
23.0
19.5
21.0
21.0
23.0
23.0
23.0
20.0
25.0
24.0
26.0
28.0
28.0
26.0
30.0
30.0
Type B
Type B
Type B
Threaded
Type A
Type B
Type B
Threaded
Threaded
Threaded
Type B
Type A
Type A
Type B
Threaded
Threaded
Threaded
Type A
Threaded
Type A
Type A
Type B
Threaded
Threaded
Type A
Type A
Type B
Threaded
Type B
Flange
Diameter
Df
Bolt Hole
Circle
Dp
Hole
Diameter
X
(mm)
24.0
24.0
26.0
(mm)
18.0
18.0
20.0
(mm)
3.4
3.4
3.4
27.0
29.0
37.0
21.0
23.0
29.0
3.4
3.4
4.5
31.0
31.0
31.0
40.0
25.0
25.0
25.0
32.0
3.4
3.4
3.4
4.5
40.0
32.0
4.5
40.0
37.0
42.0
32.0
29.0
34.0
4.5
4.5
4.5
45.0
45.0
45.0
37.0
37.0
36.0
4.5
4.5
5.5
49.0
40.0
5.5
Screw and Nut
Assembly
P/N
Catalog
Page
PRM0401
PRM0504
PRM0601
8102-448-025
PRM0606
PRM0801
PRM0802
8103-448-026
8103-448-027
8103-448-028
PRM0805
PRM0808
PRM0812
PRM1002
8103-448-022
8103-448-023
8103-448-029
PRM1010
8103-448-030
PRM1015
PRM1020
PRM1202
8105-448-031
8105-448-032
PRM1312
PRM1320
PRM1402
8105-448-033
PRM1404
114
114
114
116
114
114
114
116
116
116
114
114
114
114
116
116
116
114
116
114
114
114
116
116
114
114
114
116
114
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Metric Ball Screws Product Overview
Cylindrical Ball Nuts
ZG
KGM-N, KGM-D
Model: ZG, KGM-D, KGM-N
Return: Internal
Style: Cylindrical
Mounting: Threaded
Backlash: Z1, Z2 and Z3
Thread Direction: Right Hand
D
D
L
Dynamic
Load
Nominal
Length
Lead
Diameter
Capacity
L
(Cam)
(mm) (mm)
(kN)
(mm)
12
4
3.5
34.0
12
5
4.4
24.0
12
10
4.9
27.5
16
5
9.3
34.0
16
5
12.1
57.5
16
10
15.4
50.0
20
5
10.5
34.0
20
5
10.5
34.0
20
5
14.8
57.5
20
20
11.6
30.0
20
50
13.0
56.0
25
5
12.3
34.0
25
5
12.3
34.0
25
5
20.4
63.5
25
10
13.2
45.0
25
10
19.9
61.0
25
20
13.0
35.0
25
25
16.7
35.0
25
50
15.4
58.0
32
5
21.5
45.0
32
5
21.5
45.0
32
5
23.3
65.5
32
10
33.4
60.0
32
10
33.8
85.0
32
20
29.7
70.0
32
40
14.9
45.0
40
5
23.8
45.0
40
5
23.8
45.0
40
5
26.3
67.5
40
10
38.0
60.0
40
10
78.6
105.5
40
20
33.3
70.0
40
20
34.2
83.0
40
40
35.0
85.0
50
10
68.7
82.0
50
10
82.0
82.0
50
10
97.8
118.0
50
20
60.0
82.0
63
10
76.0
82.0
63
10
90.0
82.0
63
10
109.7
118.0
80
10
86.3
82.0
80
10
121.9
126.0
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Width/
Diameter
D
(mm)
25.0
20.0
24.0
28.0
32.0
28.0
36.0
32.0
38.0
35.0
35.0
40.0
38.0
42.0
40.0
42.0
40.0
40.0
40.0
50.0
45.0
52.0
53.0
52.0
53.0
53.0
63.0
53.0
58.0
63.0
65.0
63.0
65.0
63.0
72.0
75.0
78.0
85.0
85.0
90.0
92.0
105.0
120.0
L
Flange Bolt Hole
Hole
Diameter
Ball Nut Diameter Circle
X
Dp
Df
Form
Threaded
Keyway
Keyway
Keyway
Threaded
Keyway
Keyway
Keyway
Threaded
Keyway
Keyway
Keyway
Keyway
Threaded
Keyway
Threaded
Keyway
Keyway
Keyway
Keyway
Keyway
Threaded
Keyway
Threaded
Keyway
Keyway
Keyway
Keyway
Threaded
Keyway
Threaded
Keyway
Threaded
Keyway
Keyway
Keyway
Threaded
Keyway
Keyway
Keyway
Threaded
Keyway
Threaded
(mm)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
(mm)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
(mm)
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Ball
Nut
Nut
P/N
Screw
P/N
Catalog
Page
ZG
KGM-N
KGM-D
KGM-D
ZG
KGM-D
KGM-D
KGM-N
ZG
KGM-N
KGM-N
KGM-D
KGM-N
ZG
KGM-D
ZG
KGM-D
KGM-D
KGM-D
KGM-D
KGM-N
ZG
KGM-N
ZG
KGM-N
KGM-N
KGM-D
KGM-N
ZG
KGM-D
ZG
KGM-D
ZG
KGM-D
KGM-N
KGM-D
ZG
KGM-N
KGM-N
KGM-D
ZG
KGM-N
ZG
7832771
KGM-N-1205-RH-OO
KGM-D-1210-RH-OO
KGM-D-1605-RH-EE
7832778
KGM-D-1610-RH-EE
KGM-D-2005-RH-EE
KGM-N-2005-RH-EE
7832781
KGM-N-2020-RH-EE
KGM-N-2050-RH-EE
KGM-D-2505-RH-EE
KGM-N-2505-RH-EE
7832788
KGM-D-2510-RH-EE
7832792
KGM-D-2520-RH-EE
KGM-D-2525-RH-EE
KGM-D-2550-RH-EE
KGM-D-3205-RH-EE
KGM-N-3205-RH-EE
7832797
KGM-N-3210-RH-EE
7832800
KGM-N-3220-RH-EE
KGM-N-3240-RH-EE
KGM-D-4005-RH-EE
KGM-N-4005-RH-EE
7832806
KGM-D-4010-RH-EE
7832810
KGM-D-4020-RH-EE
7833723
KGM-D-4040-RH-EE
KGM-N-5010-RH-EE
KGM-D-5010-RH-EE
7832819
KGM-N-5020-RH-EE
KGM-N-6310-RH-EE
KGM-D-6310-RH-EE
7832824
KGM-N-8010-RH-EE
7832829
7832770-P5
KGS-1205-023-RH
KGS-1210-023-RH
KGS-1605-023-RH
7832776-P5
KGS-1610-023-RH
KGS-2005-023-RH
KGS-2005-023-RH
7832779-P5
KGS-2020-023-RH
KGS-2050-023-RH
KGS-2505-023-RH
KGS-2505-023-RH
7832786-P5
KGS-2510-023-RH
7832790-P5
KGS-2520-023-RH
KGS-2525-023-RH
KGS-2550-023-RH
KGS-3205-023-RH
KGS-3205-023-RH
7832795-P5
KGS-3210-023-RH
7832798-P5
KGS-3220-023-RH
KGS-3240-023-RH
KGS-4005-023-RH
KGS-4005-023-RH
7832804-P5
KGS-4010-023-RH
7832808-P5
KGS-4020-023-RH
7832811-P5
KGS-4040-023-RH
KGS-5010-023-RH
KGS-5010-023-RH
7832817-P5
KGS-5020-023-RH
KGS-6310-023-RH
KGS-6310-023-RH
7832822-P5
KGS-8010-023-RH
7832827-T7
120
132
130
130
120
130
130
132
120
132
132
130
132
120
130
120
130
130
130
130
132
120
132
120
132
132
130
132
120
130
120
134
120
130
132
130
120
132
132
130
120
132
120
109
Metric Ball Screws Product Overview
Flanged Ball Nuts
Form E
12mm
16 – 32mm
> 40mm
D1
L8
60°
Model: FK, FH, KGF-D
Return: Internal
Style: Flanged
Mounting: Flanged
Backlash: Z1, Z2 and Z3
Thread Direction: Right Hand
Form S
D1
D4
D4
D6
D6
L2
(4x) D5 on D4 B.C.D.
L2
(6x) D5 on D4 B.C.D.
(8x) D5 on D4 B.C.D.
Note: KGF-D 2525 and 4040 models have round flanges.
Dynamic
Load
Nominal
Length
Lead
Diameter
Capacity
L2
(Cam)
(mm) (mm)
(kN)
(mm)
12
10
4.9
27.5
16
5
9.5
48.5
16
5
9.3
42.0
16
10
15.4
55.0
20
5
11.5
48.5
20
5
10.5
42.0
20
20
10.8
36.0
25
5
13.1
49.0
25
5
12.3
42.0
25
10
24.7
51.0
25
10
13.2
55.0
25
20
13.0
35.0
25
25
13.1
39.0
25
25
16.7
35.0
25
50
15.4
58.0
32
5
19.3
57.0
32
5
21.5
55.0
32
10
26.4
73.0
32
10
33.4
69.0
32
20
47.2
83.0
32
20
29.7
80.0
32
32
19.7
42.0
32
32
18.0
42.0
40
5
26.3
66.0
40
5
23.8
57.0
40
10
64.9
88.5
40
10
38.0
71.0
40
20
52.2
83.0
40
20
33.3
80.0
40
40
59.7
104.0
40
40
35.0
85.0
50
10
66.4
92.0
50
10
68.7
95.0
50
20
78.8
85.0
50
20
60.0
95.0
63
10
76.0
97.0
63
10
93.8
103.5
63
20
103.1
86.0
80
10
121.9
121.0
110
Width/
Diameter
D1
(mm)
24.0
28.0
28.0
28.0
36.0
36.0
36.0
40.0
40.0
40.0
40.0
40.0
40.0
40.0
40.0
50.0
50.0
50.0
53.0
56.0
53.0
56.0
50.0
63.0
63.0
63.0
63.0
63.0
63.0
70.0
63.0
75.0
75.0
75.0
85.0
90.0
90.0
95.0
105.0
Flange Bolt Hole
Hole
Diameter
Ball Nut Diameter Circle
D4
D5
D6
Form
Form S
Form S
Form E
Form E
Form S
Form E
Form S
Form S
Form E
Form S
Form E
Form S
Form S
Form S
Form S
Form S
Form E
Form S
Form E
Form S
Form E
Form S
Form S
Form S
Form E
Form S
Form E
Form S
Form E
Form S
Form S
Form S
Form E
Form S
Form E
Form E
Form S
Form S
Form S
(mm)
40.0
48.0
48.0
48.0
58.0
58.0
58.0
62.0
62.0
62.0
62.0
62.0
62.0
62.0
62.0
80.0
80.0
80.0
80.0
86.0
80.0
86.0
80.0
93.0
93.0
93.0
93.0
93.0
93.0
100.0
93.0
110.0
110.0
110.0
125.0
125.0
125.0
135.0
145.0
(mm)
32.0
38.0
38.0
38.0
47.0
47.0
47.0
51.0
51.0
51.0
51.0
51.0
51.0
51.0
51.0
65.0
65.0
65.0
65.0
71.0
65.0
71.0
65.0
78.0
78.0
78.0
78.0
78.0
78.0
85.0
78.0
93.0
93.0
93.0
103.0
108.0
108.0
115.0
125.0
(mm)
4.5
5.5
5.5
5.5
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
6.6
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
11.0
11.0
11.0
11.0
11.0
11.0
13.5
13.5
Ball
Nut
Nut
P/N
Screw
P/N
Catalog
Page
KGF-D
FK
KGF-D
KGF-D
FK
KGF-D
FH
FK
KGF-D
FH
KGF-D
KGF-D
FH
KGF-D
KGF-D
FK
KGF-D
FK
KGF-D
FH
KGF-D
FH
KGF-D
FK
KGF-D
FK
KGF-D
FH
KGF-D
FH
KGF-D
FK
KGF-D
FH
KGF-D
KGF-D
FK
FK
FK
KGF-D-1210-RH-OO
7832777
KGF-D-1605-RH-EE
KGF-D-1610-RH-EE
7832780
KGF-D-2005-RH-EE
7832784
7832787
KGF-D-2505-RH-EE
7832791
KGF-D-2510-RH-EE
KGF-D-2520-RH-EE
7832794
KGF-D-2525-RH-EE
KGF-D-2550-RH-EE
7832796
KGF-D-3205-RH-EE
7832799
KGF-D-3210-RH-EE
7832803
KGF-D-3220-RH-EE
7833300
KGF-D-3232-RH-EE
7832805
KGF-D-4005-RH-EE
7832809
KGF-D-4010-RH-EE
7832812
KGF-D-4020-RH-EE
7832815
KGF-D-4040-RH-EE
7832818
KGF-D-5010-RH-EE
7832821
KGF-D-5020-RH-EE
KGF-D-6310-RH-EE
7832823
7832826
7832828
KGS-1210-023-RH
7832776-P5
KGS-1605-023-RH
KGS-1610-023-RH
7832779-P5
KGS-2005-023-RH
7832783-P5
7832786-P5
KGS-2505-023-RH
7832790-P5
KGS-2510-023-RH
KGS-2520-023-RH
7832793-P5
KGS-2525-023-RH
KGS-2550-023-RH
7832795-P5
KGS-3205-023-RH
7832798-P5
KGS-3210-023-RH
7832802-P5
KGS-3220-023-RH
7833301-P5
KGS-3232-023-RH
7832804-P5
KGS-4005-023-RH
7832808-P5
KGS-4010-023-RH
7832811-P5
KGS-4020-023-RH
7832814-P5
KGS-4040-023-RH
7832817-P5
KGS-5010-023-RH
7832820-P5
KGS-5020-023-RH
KGS-6310-023-RH
7832822-P5
7832825-P5
7832827-T7
126
122
126
126
122
126
122
122
126
122
126
126
122
126
126
122
126
122
126
122
126
122
126
122
126
122
126
122
126
122
126
122
126
122
126
126
122
122
122
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Lead Screws, Ball Screws and Ball Splines
Metric Ball Screws Product Overview
Flanged Ball Nuts
Form E
Form S
D1
D1
Model: KGF-N
Return: Internal
Style: Flanged
Mounting: Flanged
Backlash: Z1, Z2 and Z3
Thread Direction: Right Hand
D4
D4
D6
D6
L2
L2
KGF-N
6 x D5
Dynamic
Load
Nominal
Length
Lead
Diameter
Capacity
L2
(Cam)
(mm) (mm)
(kN)
(mm)
16
5
9.3
44.0
20
5
10.5
44.0
20
20
11.6
30.0
20
50
13.0
56.0
25
5
12.3
46.0
32
5
21.5
59.0
32
10
33.4
73.0
32
40
14.9
45.0
40
5
23.8
59.0
40
10
38.0
73.0
50
10
68.7
97.0
63
10
76.0
99.0
80
10
86.3
101.0
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Width/
Diameter
D1
(mm)
28.0
32.0
35.0
35.0
38.0
45.0
53.0
53.0
53.0
63.0
72.0
85.0
105.0
Flange Bolt Hole
Hole
Diameter
Ball Nut Diameter Circle
D4
D5
D6
Form
Form E
Form E
Form S
Form S
Form E
Form E
Form E
Form S
Form E
Form E
Form E
Form E
Form E
(mm)
48.0
55.0
62.0
62.0
62.0
70.0
80.0
80.0
80.0
95.0
110.0
125.0
145.0
(mm)
38.0
45.0
50.0
50.0
50.0
58.0
68.0
68.0
68.0
78.0
90.0
105.0
125.0
(mm)
5.5
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
9.0
11.0
11.0
14.0
Ball
Nut
Nut
P/N
Screw
P/N
Catalog
Page
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N
KGF-N-1605-RH-EE
KGF-N-2005-RH-EE
KGF-N-2020-RH-EE
KGF-N-2050-RH-EE
KGF-N-2505-RH-EE
KGF-N-3205-RH-EE
KGF-N-3210-RH-EE
KGF-N-3240-RH-EE
KGF-N-4005-RH-EE
KGF-N-4010-RH-EE
KGF-N-5010-RH-EE
KGF-N-6310-RH-EE
KGF-N-8010-RH-EE
KGS-1605-050-RH
KGS-2005-050-RH
KGS-2020-050-RH
KGS-2050-050-RH
KGS-2505-050-RH
KGS-3205-050-RH
KGS-3210-050-RH
KGS-3240-050-RH
KGS-4005-050-RH
KGS-4010-050-RH
KGS-5010-050-RH
KGS-6310-050-RH
KGS-8010-023-RH
128
128
128
128
128
128
128
128
128
128
128
128
128
111
NOTES:
112
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Lead Screws, Ball Screws and Ball Splines
Miniature Rolled Ball Screws — Metric Series
Miniature Rolled Ball Screw Assemblies are an efficient, costeffective solution in a small envelope. Ball screw assemblies
range from 4mm to 14mm in diameter, with standard lead
accuracies of
52 microns/300mm. Miniature Rolled Ball Screws are ideal for
laboratory, semiconductor, and medical applications.
www.thomsonlinear.com
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
113
Miniature Rolled Ball Screws — PRM Series
4mm to 14mm Diameter, Lead Accuracy: ± 52µm/300mm
Type A
Non-Preloaded, Rolled Ball
Screw Assemblies
Type B
• Cost-effective solution in a small envelope, ideal for use in small spaces
• Clearance held to max .02mm
• Two nut styles (Type A & B) provide optimum performance in low and high lead assemblies
Nominal
Diameter
(size)
Lead
Nut Type
Ball Screw
and Nut
Assembly
P/N(1)
Suggested
Bearing
Size
Performance Data
Dynamic
Load
Capacity
Static
Load
Capacity
(mm)
(mm)
(mm)
(kN)
(lbf)
(kN)
(lbf)
PRM0401
4
1
B
N/A
0.6
126
0.8
178
PRM0504
5
4
B
N/A
0.5
106
0.7
162
PRM0601
6
1
B
4
0.7
153
1.2
270
PRM0606
6
6
A
4
0.9
196
1.5
326
PRM0801
8
1
B
6
0.8
175
1.7
371
PRM0802
8
2
B
6
2.4
540
4.1
922
PRM0805
8
5
B
6
1.9
416
3.0
674
PRM0808
8
8
A
6
2.2
495
3.8
854
PRM0812
8
12
A
6
2.2
495
4.0
899
PRM1002
10
2
B
6
2.7
607
5.3
1,191
PRM1010
10
10
A
6
3.3
742
5.9
1,326
PRM1015
10
15
A
6
3.3
742
6.4
1,439
PRM1020
10
20
A
6
2.1
472
4.0
899
PRM1202
12
2
B
8
3.0
674
6.4
1,439
PRM1312
13
12
A
8
5.0
1,124
9.9
2,226
PRM1320
13
20
A
8
5.0
1,124
10.7
2,405
PRM1402
14
2
B
8
3.2
719
7.5
1,686
(1) All Miniature Rolled product is sold in matched sets as ball screw and nut assemblies. Please contact factory for sizes not listed.
PRM1404
14
4
B
8
5.7
1,281
11.6
2,608
114
Max.
Axial
Backlash
Minor
Diameter
Max.
Length
(mm)
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
0.02
(mm)
3.3
4.3
5.3
5.2
7.3
6.6
6.6
6.7
6.7
8.6
8.4
8.4
8.7
10.6
11.0
11.0
12.6
11.8
(mm)
100
220
265
265
360
360
360
360
360
355
405
405
405
395
700
700
445
445
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Lead Screws, Ball Screws and Ball Splines
Miniature Rolled Ball Screws — PRM Series
Type A — End Cap Design
30°
30°
(4x) ØX
Dp
ØDf
ØDo ØD ØD (g6)
ØB.C.
F
V
L1
L
Type B — Return Plate Design
30°
30°
(4x) ØX
Dp
ØDo ØD ØD (g6)
ØDf ØB.C.
F
V
Nominal
Diameter Lead
(size)
(mm)
4
5
6
6
8
8
8
8
8
10
10
10
10
12
13
13
14
14
(mm)
1
4
1
6
1
2
5
8
12
2
10
15
20
2
12
20
2
4
L
L1
Nut Specifications
Nut
Type
Outside
Diameter
D
B
B
B
A
B
B
B
A
A
B
A
A
A
B
A
A
B
B
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(mm)
11.0
12.0
13.0
14.0
16.0
20.0
18.0
18.0
18.0
23.0
23.0
23.0
20.0
25.0
28.0
28.0
26.0
30.0
Flange
Outside
Diameter
Df
(mm)
24.0
24.0
26.0
27.0
29.0
37.0
31.0
31.0
31.0
40.0
40.0
40.0
37.0
42.0
45.0
45.0
45.0
49.0
Overall
Length
L
Body
Length
L1
Flange
Width
F
Flange Flat
Width
V
Bolt Circle
Diameter
Dp
(mm)
17.0
22.0
17.0
17.0
17.0
24.0
28.0
20.0
27.0
24.0
24.0
33.0
23.0
24.0
30.0
43.0
25.0
33.0
(mm)
13.0
18.0
13.0
8.0
13.0
19.0
24.0
10.0
17.0
19.0
13.0
22.0
13.0
19.0
17.0
29.0
19.0
27.0
(mm)
4.0
4.0
4.0
4.0
4.0
5.0
4.0
4.0
4.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
6.0
6.0
(mm)
15.0
16.0
16.0
16.0
18.0
22.0
20.0
20.0
20.0
25.0
25.0
25.0
22.0
27.0
30.0
30.0
28.0
32.0
(mm)
18.0
18.0
20.0
21.0
23.0
29.0
25.0
25.0
25.0
32.0
32.0
32.0
29.0
34.0
37.0
37.0
36.0
40.0
Mounting
Hole
Diameter
X
(mm)
3.4
3.4
3.4
3.4
3.4
4.5
3.4
3.4
3.4
4.5
4.5
4.5
4.5
4.5
4.5
4.5
5.5
5.5
Ball
Diameter
(mm)
0.80
0.80
0.80
1.00
0.80
1.59
1.59
1.59
1.59
1.59
2.00
2.00
1.59
1.59
2.38
2.38
1.59
2.38
115
Miniature Rolled Ball Screws — TSI Series
6mm to 14mm Diameter, Lead Accuracy: ± 52µm/300mm
Internal Return Threaded Ball Nut and Screw
• Cost-effective solution in a small envelope, ideal for use in small spaces
• Flexible solution for non-standard mounting
• Available in two preload classes (Type Z2 or Z3)
Z2 – no preload, clearance held to max indicated in table (standard unless specified)
Z3 – no preload, clearance held to max .05mm
Performance Data
Nominal
Diameter
Lead
(mm)
6
8
8
8
10
10
10
10
12
12
14
(mm)
2
2
2.5
3
2
3
4
10
2
3
3
116
Ball Screw
P/N
190-9684
190-9685
190-9686
190-9687
190-9680
190-9681
190-9688
190-9689
190-9690
190-9691
190-9692
Ball Nut
P/N
8102-448-025
8103-448-026
8103-448-027
8103-448-028
8103-448-022
8103-448-023
8103-448-029
8103-448-030
8105-448-031
8105-448-032
8105-448-033
Dynamic
Load
Capacity (Cam)
(kN)
1.6
2.3
3.1
2.7
2.7
6.7
5.8
4.1
4.5
9.6
6.7
(lbs)
360
517
697
607
607
1506
1304
922
1012
2158
1506
Static
Load
Capacity (Co)
(kN)
2.1
2.9
4.0
3.1
3.8
9.6
8.2
5.8
7.6
16.4
11.6
(lbs)
472
652
899
697
854
2158
1844
1304
1709
3687
2608
Max
Axial
Backlash
(mm)
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
0.10
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Lead Screws, Ball Screws and Ball Splines
Miniature Rolled Ball Screws — TSI Series
L
L1
D
THD
Screw Specifications
Nominal
Diameter
Lead
(mm)
6
8
8
8
10
10
10
10
12
12
14
(mm)
2
2
2.5
3
2
3
4
10
2
3
3
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Nut Specifications
Major
Diameter
Minor
Diameter
Max
Length
Screw
Weight
(mm)
5.9
7.8
7.8
7.7
9.8
9.7
9.7
9.7
11.8
11.7
13.7
(mm)
4.9
6.3
6.3
5.9
8.3
8.0
7.9
7.9
10.3
9.9
12.0
(mm)
1000
1500
1500
1500
2000
2000
2000
2000
2000
2000
2000
(kg/m)
0.22
0.38
0.38
0.37
0.59
0.58
0.58
0.58
0.86
0.85
1.16
No. of
Circuits
8
5
7
3
5
7
6
2x1.8
8
9
5
Ball
Diameter
D
(+0 / -.1)
(mm)
1.000
1.588
1.588
1.984
1.588
1.984
1.984
1.984
1.588
1.984
1.984
(mm)
16
18
18
18
19.5
21
21
23
24
26
30
THD
M12x1
M15x1
M15x1
M16x1
M17x1
M18x1
M18x1
M18x1
M20x1
M20x1
M24x1.5
L
L1
(mm)
22
24
24
25
22
29
35
35
40
40
35
(mm)
8
8
8
8
8
9
9
9
10
10
9
117
NOTES:
118
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Lead Screws, Ball Screws and Ball Splines
Thomson Neff Rolled Ball Screws — Metric Series
Thomson NEFF Rolled Ball Screw Assemblies are designed and
manufactured to provide high level performance at an affordable
price. Ball screws are manufactured using Thomson’s patented,
German-engineered Precision Screw Forming (PST) Technology,
which provides high accuracy (23 microns/300mm standard) with
the manufacturing efficiency of rolled processes. Ball Screw
Assemblies are available in a wide range of diameters, leads,
and nut styles - all designed to provide quiet, smooth running,
and efficient performance. Ball nuts include one of three unique
ball return systems (depending on the diameter and lead of the
screw used) providing perfect guidance, low wear, and smooth
running performance. Thomson NEFF Rolled Ball Screw Assemblies
are ideal for machining centers, factory automation, packaging,
injection molding, wood working, water jet cutting, electronic
assembly, and medical applications.
www.thomsonlinear.com
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
119
Thomson NEFF Rolled Ball Screws — ZG Style Ball Nuts
Standard Lead Accuracy: ± 23µm/300mm
p145
Quick Install
Available for Select Nuts
ZG Style Nut
Internal Return Threaded Ball Nut and Screw
• Flexible solution for non-standard mounting
• Integral wiper(4) included as standard
• Available in three preload classes (Type Z1, Z2, Z3)
Z1 – light preload to 1-2%
Z2 – no preload, clearance held to max indicated in table (standard unless specified)
Z3 – no preload, clearance held to max .05mm
Nominal
Diameter Lead Ball Screw P/N(1)
(2) (6)
(size)
(mm)
12
16
20
25
25
32
32
40
40
40
50
63
80
Ball Nut
P/N
Type Z2
Standard
(mm)
KGS-1204-023-RH KGM-G-1204-RH-00
4
KGS-1605-023-RH KGM-G-1605-RH-KK
5
KGS-2005-023-RH KGM-G-2005-RH-KK
5
KGS-2505-023-RH KGM-G-2505-RH-KK
5
KGS-2510-023-RH KGM-G-2510-RH-KK
10
KGS-3205-023-RH KGM-G-3205-RH-KK
5
10 KGS-3210-023-RH-L KGM-G-3210-RH-KK
KGS-4005-023-RH KGM-G-4005-RH-KK
5
KGS-4010-023-RH KGM-G-4010-RH-KK
10
20 KGS-4020-023-RH-L KGM-G-4020-RH-KK
KGS-5010-023-RH KGM-G-5010-RH-KK
10
KGS-6310-023-RH KGM-G-6310-RH-KK
10
KGS-8010-050-RH KGM-G-8010-RH-KK
10
Performance Data
Screw Specifications(3)
Available
Preload Dynamic Load Static Load Max. Axial Major
Screw
Minor
Max.
Types
Capacity (Cam) Capacity (Co) Backlash Diameter Diameter Length(5) Weight
(kN)
(lbf)
(kN)
(lbf)
(mm)
(mm)
(mm)
(mm)
(kg/m)
Z1, Z2, Z3 3.5 787 4.0 899
0.07
11.6
9.7
3000
0.7
Z1, Z2, Z3
12.1 2,720 14.5 3,260
0.09
15.6
12.7
6000
1.2
Z1, Z2, Z3
14.8 3,327 20.7 4,654
0.09
19.6
16.7
6000
2.0
Z1, Z2, Z3
20.4 4,586 33.7 7,576
0.09
24.6
21.7
6000
3.3
Z1, Z2, Z3
19.9 4,474 31.8 7,149
0.09
24.6
21.7
6000
3.3
Z1, Z2, Z3
23.3 5,238 45.5 10,229
0.09
31.6
28.7
6000
5.6
Z1, Z2, Z3
33.8 7,599 52.0 11,690
0.15
31.6
27.1
6000
5.3
Z1, Z2, Z3
26.3 5,912 59.2 13,309
0.09
39.6
36.7
6000
9.0
Z1, Z2, Z3
78.6 17,670 136.2 30,619
0.18
39.6
34.0
6000
8.3
Z1, Z2, Z3
34.2 7,689 57.2 12,860
0.18
40.0
35.7
6000
8.9
Z1, Z2, Z3
97.8 21,986 213.2 47,929
0.18
49.5
43.0
6000
13.5
Z1, Z2, Z3 109.7 24,662 275.6 61,957
0.18
62.5
56.9
6000
22.0
Z1, Z2, Z3 121.9 27,404 375.0 84,303
0.18
79.5
73.9
6000
36.4
(1) Thomson NEFF Ball Screws, Ball Nuts and End Blocks can be sold together as assemblies or separately as components (preloaded ball nuts sold only as an assembly).
(2) All ball screws and nuts are right-hand thread.
(3) Dimensional information on bearing supports and standard end machining is available on page 154.
(4) Wiper not included on 12 x 4 ball nut.
(5) Max. length includes 150mm on each end usable for end machining only. Max. travel length equals table value minus 300mm. Ends are hardened.
(6) -P5 Accuracy Class is ±23µm/300 mm. -T7 Accuracy Class is ±52 µm/300 mm
(7) -P3 Accuracy Class is ±12µm/300 mm. and is available upon request for most sizes.
120
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Lead Screws, Ball Screws and Ball Splines
Thomson NEFF Rolled Ball Screws — ZG Style Ball Nuts
L12
L13
D13
D12
D11
D1
MAJOR Ø
MINOR Ø
L11
L
WIPER
Nut Specifications (mm)
Nominal
Diameter (size)
Lead
(mm)
12
16
20
25
25
32
32
40
40
40
50
63
80
(mm)
4
5
5
5
10
5
10
5
10
20
10
10
10
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D1
D11
D12
D13
L
L11
L12
L13
Nut
Weight
Ball
Diameter
h12
25.0
32.0
38.0
42.0
42.0
52.0
52.0
58.0
65.0
65.0
78.0
92.0
120.0
M 20 x 1.0
M 30 x 1.5
M 35 x 1.5
M 40 x 1.5
M 40 x 1.5
M 48 x 1.5
M 48 x 1.5
M 56 x 1.5
M 60 x 2.0
M 60 x 2.0
M 72 x 2.0
M 85 x 2.0
M 110 x 2.0
3.0
M6x1
M6x1
M6x1
M6x1
M6x1
M6x1
M8x1
M8x1
M6x1
M8x1
M8x1
M8x1
—
4
4
4
4
5
5
5
6
6
6
6
8
-0.2
34.0
57.5
57.5
63.5
61.0
65.5
85.0
67.5
105.5
83.0
118.0
118.0
126.0
10.0
16.5
16.5
17.0
17.0
19.0
19.0
19.0
27.0
27.0
29.0
29.0
34.0
5.0
10.5
10.5
10.5
10.0
10.5
12.0
12.0
13.0
10.0
13.0
13.0
15.5
—
22.0
22.0
23.0
21.0
23.0
43.0
22.5
43.0
33.0
53.0
53.0
53.0
(kg)
0.10
0.22
0.30
0.37
0.38
0.55
0.65
0.60
1.25
0.80
1.95
2.40
4.90
(mm)
1.984
3.500
3.500
3.500
3.500
3.500
5.556
3.500
7.144
5.556
7.144
7.144
7.144
121
Thomson NEFF Rolled Ball Screws — FK/FH Style Ball Nuts
Standard Lead Accuracy: ± 23µm/300mm(1)
FK Style Nut
FH Style Nut
Internal Return Flanged Ball Nut and Screw
• Two nut styles (FK & FH) provide optimal performance in low and high lead assemblies
• Integral wiper and flange included as standard
• Available in three preload classes (Type Z1, Z2, Z3)
Z1 – light preload to 1-2%
Z2 – no preload, clearance held to max indicated in table (standard unless specified)
Z3 – no preload, clearance held to max .05mm
Nominal
Diameter Lead Nut
(size)
Type
(mm)
16
20
20
25
25
25
32
32
32
32
40
40
40
40
50
50
63
63
80
(mm)
5
5
20
5
10
25
5
10
20
32
5
10
20
40
10
20
10
20
10
FK
FK
FH
FK
FH
FH
FK
FK
FH
FH
FK
FK
FH
FH
FK
FH
FK
FH
FK
Ball Nut
P/N
Ball Screw
P/N(2) (3) (6)
KGS-1605-023-RH
KGS-2005-023-RH
KGS-2020-023-RH
KGS-2505-023-RH
KGS-2510-023-RH
KGS-2525-023-RH-L
KGS-3205-023-RH
KGS-3210-023-RH-L
KGS-3220-023-RH-L
KGS-3232-023-RH
KGS-4005-023-RH
KGS-4010-023-RH
KGS-4020-023-RH-L
KGS-4040-023-RH-L
KGS-5010-023-RH
KGS-5020-023-RH-L
KGS-6310-023-RH
KGS-6320-023-RH
KGS-8010-050-RH
Type Z2
Standard
KGF-D-1605-RH-KK
KGF-D-2005-RH-KK
KGF-D-2020-RH-KK
KGF-D-2505-RH-KK
KGF-D-2510-RH-KK
KGF-D-2525-RH-KK
KGF-D-3205-RH-KK
KGF-D-3210-RH-KK
KGF-D-3220-RH-KK
KGF-D-3232-RH-KK
KGF-D-4005-RH-KK
KGF-D-4010-RH-KK
KGF-D-4020-RH-KK
KGF-D-4040-RH-KK
KGF-D-5010-RH-KK
KGF-D-5020-RH-KK
KGF-D-6310-RH-KK
KGF-D-6320-RH-KK
KGF-D-8010-RH-KK
Performance Data
Screw Specifications(4)
Available
Preload Dynamic Load Static Load Max. Axial Major
Minor
Max. Screw
Types Capacity (Cam) Capacity (Co) Backlash Diameter Diameter Length(5) Weight
(kN) (lbf) (kN) (lbf)
(mm)
(mm)
(mm)
(mm)
(kg/m)
Z1, Z2, Z3 9.5 2,136 10.9 2,450
0.09
15.6
12.7
6000
1.2
Z1, Z2, Z3 11.5 2,585 15.5 3,485
0.09
19.6
16.7
6000
2.0
Z1, Z2, Z3 10.8 2,428 17.5 3,934
0.08
19.6
16.7
6000
1.9
Z1, Z2, Z3 13.1 2,945 20.2 4,541
0.09
24.6
21.7
6000
3.3
Z1, Z2, Z3 24.7 5,553 53.4 12,005
0.09
24.6
21.7
6000
3.3
Z1, Z2, Z3 13.1 2,945 22.6 5,081
0.08
24.6
22.0
6000
3.3
Z1, Z2, Z3 19.3 4,339 36.3 8,161
0.09
31.6
28.7
6000
5.6
Z1, Z2, Z3 26.4 5,935 39.0 8,768
0.15
31.6
27.1
6000
5.3
Z1, Z2, Z3 47.2 10,611 83.2 18,704
0.15
31.6
27.1
6000
5.3
Z1, Z2, Z3 19.7 4,429 39.0 8,768
0.08
31.3
28.3
6000
5.3
Z1, Z2, Z3 26.3 5,912 59.2 13,309
0.09
39.6
36.7
6000
9.0
Z1, Z2, Z3 64.9 14,590 109.0 24,504
0.18
39.6
34.0
6000
8.3
Z1, Z2, Z3 52.2 11,735 103.6 23,290
0.15
39.6
35.2
6000
7.6
Z1, Z2, Z3 59.7 13,421 108.9 24,482
0.18
39.6
34.0
6000
8.4
Z1, Z2, Z3 66.4 14,927 134.3 30,192
0.18
49.5
43.0
6000
13.5
Z1, Z2, Z3 78.8 17,715 188.7 42,421
0.16
49.5
44.6
6000
13.6
Z1, Z2, Z3 93.8 21,087 229.7 51,639
0.18
62.5
56.9
6000
22.0
Z1, Z2, Z3 103.1 23,178 270.8 60,878
0.18
62.5
56.9
6000
22.0
Z1, Z2, Z3 121.9 27,404 374.9 84,281
0.18
79.5
73.9
6000
36.4
(1) 80mm nominal diameter screws are ± 52µm/300mm.
(2) Thomson NEFF Ball Screws, Ball Nuts and End Blocks can be sold together as assemblies or separately as components (preloaded ball nuts sold only as an assembly).
(3) All ball screws and nuts are right-hand thread.
(4) Dimensional information on bearing supports and standard end machining is available on page 154.
(5) Max. length includes 150mm on each end usable for end machining only. Max. travel length equals table value minus 300mm. Ends are hardened.
(6) -P5 Accuracy Class is ±23µm/300 mm. -T7 Accuracy Class is ±52 µm/300 mm
(7) -P3 Accuracy Class is ±12µm/300 mm. and is available upon request for most sizes.
122
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Lead Screws, Ball Screws and Ball Splines
Thomson NEFF Rolled Ball Screws — FK/FH Style Ball Nuts
L10
D7
-0.1
-0.6
D1
D1
D6
D1 +0.0
-0.3
MAJOR Ø
MINOR Ø
D5
WIPER
L1
L7
L3
L
90°
L8
30°
90°
(4x) D5 on D4 B.C.D.
30°
10
d0 ≥ 40mm
22.5°
8
d0 ≥ 40mm M8 x 1
L8
L10
L8
D7
d0 < 40mm M6 x 1
12mm < d0 < 40mm
60°
12mm Only
(6x) D5 on D4 B.C.D.
(8x) D5 on D4 B.C.D.
Nut Specifications (mm)
Nominal
Diameter
(size)
Lead
(mm)
16
20
20
25
25
25
32
32
32
32
40
40
40
40
50
50
63
63
80
(mm)
5
5
20
5
10
25
5
10
20
32
5
10
20
40
10
20
10
20
10
D1
g6
28.0
36.0
36.0
40.0
40.0
40.0
50.0
50.0
56.0
56.0
63.0
63.0
63.0
70.0
75.0
75.0
90.0
95.0
105.0
www.thomsonlinear.com
D4
D5
D6
38.0
47.0
47.0
51.0
51.0
51.0
65.0
65.0
71.0
71.0
78.0
78.0
78.0
85.0
93.0
93.0
108.0
115.0
125.0
H13
5.5
6.6
6.6
6.6
6.6
6.6
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
11.0
11.0
11.0
13.5
13.5
h13
48.0
58.0
58.0
62.0
62.0
62.0
80.0
80.0
86.0
86.0
93.0
93.0
93.0
100.0
110.0
110.0
125.0
135.0
145.0
L
48.5
48.5
36.0
49.0
51.0
39.0
57.0
73.0
83.0
42.0
66.0
88.5
83.0
104.0
92.0
85.0
103.5
86.0
121.0
L1
10.0
10.0
4.0
10.0
21.0
9.0
10.0
16.0
25.0
12.0
10.0
16.0
25.0
25.0
16.0
16.0
16.0
18.0
16.0
L3
L7
L8
5.5
5.5
11.0
6.0
10.0
10.0
6.0
6.0
19.0
9.0
7.0
7.0
19.5
21.0
7.0
22.0
7.0
24.0
9.0
h13
10.0
10.0
10.0
10.0
10.0
10.0
12.0
12.0
12.0
12.0
14.0
14.0
14.0
14.0
16.0
16.0
18.0
20.0
20.0
h13
40.0
44.0
44.0
48.0
48.0
48.0
62.0
62.0
68.0
68.0
70.0
70.0
70.0
77.0
85.0
85.0
95.0
100.0
110.0
Nut
Weight
(kg)
0.3
0.4
0.5
0.4
0.5
0.6
0.7
0.8
1.4
0.8
1.2
1.4
1.6
2.4
2.0
2.2
3.0
3.8
3.9
Ball
Diameter
(mm)
3.500
3.500
3.500
3.500
3.500
3.500
3.500
5.556
5.556
3.969
3.500
7.144
5.556
7.144
7.144
6.400
7.144
7.144
7.144
123
FSI Style Ball Nuts
Standard Lead Accuracy: ± 23 µm / 300 mm[1]
27
p126-1
If Z1 Preload is Required,
Order KGF-D Style Nut
Internal Return Flanged Ball Nut and Screw
• Flexible solution for standard mounting
• Integral wiper and flange included as standard
• Available in two preload classes (Type Z2, Z3)
•
Z2 – no preload, clearance held to nominal indicated in table (standard unless specified)
•
Z3 – no preload, clearance held to max 0.05 mm
Nominal
Diameter Lead Nut Ball Screw
(size)
Type
P/N
Performance Data
Ball Nut
P/N
Dynamic Load
Capacity (Cam)
(kN)
(lbs
Static Load
Capacity (Co)
(kN)
(lbs)
Screw Specifications
Max. Axial Major
Backlash Diameter
Minor
Diameter
Max.
Length(7)
Screw
Weight
(mm)
(mm)
(mm)
(mm)
(mm)
(mm)
(kg/m)
16
5
E
195-9698
7106-448-061
9.3
2091
13.1
2945
0.08
15.3
12.9
6000
1.30
16
10
E
195-9699
7106-448-062
15.4
3462
26.5
5958
0.08
15.2
13.0
6000
1.30
20
5
E
195-9700
7107-448-063
10.5
2361
16.6
3732
0.08
19.3
16.9
6000
2.00
25
5
E
195-9701
7110-448-064
12.3
2765
22.5
5058
0.08
24.3
21.9
6000
3.30
25
10
E
195-9702
7110-448-065
13.2
2968
25.3
5688
0.08
24.3
21.9
6000
3.30
25
20
S
195-9703
7110-448-066
13.0
2923
23.3
5238
0.15
24.4
22.0
6000
3.30
25
25
S
195-9704
7110-448-067
16.7
3754
32.2
7239
0.08
24.3
22.0
6000
3.30
32
5
E
195-9706
7112-448-069
21.5
4834
49.3
11084
0.08
31.3
28.9
6000
5.60
32
10
E
195-9707
7112-448-070
33.4
7509
54.5
12253
0.08
32.5
27.3
6000
5.60
32
20
E
195-9708
7112-448-071
29.7
6677
59.8
13444
0.08
31.5
27.9
6000
5.60
40
5
E
195-9710
7115-448-073
23.8
5351
63.1
14186
0.08
39.3
36.9
6000
9.00
40
10
E
195-9711
7115-448-074
38.0
8543
69.1
15535
0.08
39.3
34.1
6000
8.40
40
20
E
195-9712
7115-448-075
33.3
7487
76.1
17109
0.08
39.5
35.9
6000
9.00
40
40
S
195-9713
7115-448-076
35.0
7869
101.9
22909
0.08
38.7
36.3
6000
9.00
50
10
E
195-9714
7120-448-077
68.7
15445
155.8
35027
0.08
49.3
44.1
6000
13.50
(1) P3 accuracy class is ± 12 µm / 300 mm and is available upon request.
(2) Dimension does not comply with DIN 69051.
(3) Round flange.
124
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Lead Screws, Ball Screws and Ball Splines
FSI Style Ball Nuts
FORM E
FORM S L10
L10
-0.2
D1 g6 D1 -0.8
D1 g6
G x Lg
G x Lg
-0.2
D1 -0.8
D4
D4
D6
D6
L7
L7
L1
L6
L2
L2
HOLE PATTERN 1
FLANGED FORM B
TO DIN 69051
L1
HOLE PATTERN 2
FLANGED FORM B
TO DIN 69051
L8
90°
30°
22.5°
L8
90°
30°
6 x D5
8 x D5
Nut Specifications (mm)
Nominal
Diameter
(size)
Lead
(mm)
(mm)
16
Hole
Pattern
D1
5
1
16
10
20
Lube Hole No. of
(G)
Circuits
Ball
Diameter
D4
D5
D6
L1
L2
L6
L7
L8
L9
L10
28.0
38.0
6.0
48.0
10.0
42.0
-
10.0
40.0
5.0
M6x1
3
3.500
2.000
1
28.0
38.0
6.0
48.0
10.0
55.0
-
10.0
40.0
5.0
M6x1
6
3.000
3.500
5
1
36.0
47.0
7.0
58.0
10.0
42.0
-
10.0
44.0
5.0
M6x1
3
3.500
3.000
25
5
1
40.0
51.0
7.0
62.0
10.0
42.0
-
10.0
48.0
5.0
M6x1
3
3.500
3.500
25
10
1
40.0
51.0
7.0
62.0
16.0
55.0
-
10.0
48.0
5.0
M6x1
3
3.500
3.500
25
20
1
40.0
51.0
7.0
62.0
4.0
35.0
10.5
10.0
5.0
M6x1
4
3.500
3.500
25
25
1
40.0
51.0
7.0
62.0
9.0
35.0
8.0
10.0
48.0
N/A[3]
5.0
M6x1
5
3.500
3.500
32
5
1
65.0
9.0
80.0
10.0
55.0
-
12.0
62.0
6.0
M6x1
5
3.500
3.500
32
10
1
50.0
53.0[2]
65.0
9.0
80.0
16.0
69.0
-
12.0
62.0
6.0
M8x1
3
7.140
3.500
32
20
1
53.0[2]
65.0
9.0
80.0
16.0
80.0
-
12.0
62.0
6.0
M6x1
4
5.000
3.500
40
5
2
63.0
78.0
9.0
93.0
10.0
57.0
-
14.0
70.0
7.0
M6x1
5
3.500
3.500
40
10
2
63.0
78.0
9.0
93.0
16.0
71.0
-
14.0
70.0
7.0
M8x1
3
7.140
7.140
40
20
2
63.0
78.0
9.0
93.0
16.0
80.0
-
14.0
7.0
M8x1
4
5.000
7.140
40
40
2
63.0
78.0
9.0
93.0
16.0
85.0
7.5
14.0
70.0
N/A[3]
7.0
M8x1
8
3.500
7.140
50
10
2
75.0
93.0
11.0
110.0
16.0
95.0
-
16.0
85.0
8.0
M8x1
5
7.140
7.140
g6
www.thomsonlinear.com
(mm)
125
Thomson NEFF Rolled Ball Screws — KGF-D Style Ball Nuts
Standard Lead Accuracy: ± 23µm/300mm(1)
Quick Install
Available for Select Nuts
p145
25
p124-1
Z2 & Z3 Preload Class
For Shorter Lead Times and Reduced Shipping Costs,
Order FSI Style Ball Nuts
KGF-D Style Nut
Internal Return Flanged Ball Nut and Screw
• Flexible solution for standard mounting
• Integral wiper and flange included as standard
• Available in three preload classes (Type Z1, Z2, Z3)
Z1 – light preload to 1 – 2%
Z2 – no preload, clearance held to max indicated in table (standard unless specified)
Z3 – no preload, clearance held to max .05mm
Nominal
Diameter Lead Nut
(size)
Type
(mm)
12
16
16
20
25
25
25
25
25
32
32
32
32
40
40
40
40
50
50
63
63
(mm)
10
5
10
5
5
10
20
25
50
5
10
20
32
5
10
20
40
10
20
10
20
S
E
E
E
E
E
S
S
S
E
E
E
S
E
E
E
S
E
E
E
E
Ball Screw
P/N(1) (2) (3)
KGS-1210-023-RH
KGS-1605-023-RH
KGS-1610-023-RH
KGS-2005-023-RH
KGS-2505-023-RH
KGS-2510-023-RH
KGS-2520-023-RH
KGS-2525-023-RH
KGS-2550-023-RH
KGS-3205-023-RH
KGS-3210-023-RH
KGS-3220-023-RH
KGS-3232-023-RH
KGS-4005-023-RH
KGS-4010-023-RH
KGS-4020-023-RH
KGS-4040-023-RH
KGS-5010-023-RH
KGS-5020-023-RH
KGS-6310-023-RH
KGS-6320-023-RH
Ball Nut
P/N
Z2
Standard
KGF-D-1210-RH-OO
KGF-D-1605-RH-EE
KGF-D-1610-RH-EE
KGF-D-2005-RH-EE
KGF-D-2505-RH-EE
KGF-D-2510-RH-EE
KGF-D-2520-RH-EE
KGF-D-2525-RH-EE
KGF-D-2550-RH-EE
KGF-D-3205-RH-EE
KGF-D-3210-RH-EE
KGF-D-3220-RH-EE
KGF-D-3232-RH-EE
KGF-D-4005-RH-EE
KGF-D-4010-RH-EE
KGF-D-4020-RH-EE
KGF-D-4040-RH-EE
KGF-D-5010-RH-EE
KGF-D-5020-RH-EE
KGF-D-6310-RH-EE
KGF-D-6320-RH-EE
Performance Data
Screw Specifications(6)
Available
Preload Dynamic Load Static Load Max. Axial Major
Minor
Max. Screw
Types(4) Capacity (Cam) Capacity (Co) Backlash Diameter Diameter Length(7) Weight
(kN) (lbf) (kN) (lbf)
(mm)
(mm)
(mm)
(mm) (kg/m)
Z1, Z2, Z3 4.9 1,102 8.0 1,800
0.08
11.5
10.1
3000
0.8
Z1, Z2, Z3 9.3 2,091 13.1 2,945
0.08
15.3
12.9
6000
1.3
Z1, Z2, Z3 15.4 3,462 26.5 5,957
0.08
15.2
13.0
6000
1.3
Z1, Z2, Z3 10.5 2,361 16.6 3,732
0.08
19.3
16.9
6000
2.0
Z1, Z2, Z3 12.3 2,766 22.5 5,058
0.08
24.3
21.9
6000
3.3
Z1, Z2, Z3 13.2 2,968 25.3 5,688
0.08
24.3
21.9
6000
3.3
Z1, Z2, Z3 13.0 2,921 23.3 5,238
0.15
24.4
22.0
6000
3.3
Z1, Z2, Z3 16.7 3,755 32.2 7,239
0.08
24.3
22.0
6000
3.3
Z1, Z2, Z3 15.4 3,463 31.7 7,126
0.15
23.9
21.5
6000
3.3
Z1, Z2, Z3 21.5 4,834 49.3 11,083
0.08
31.3
28.9
6000
5.6
Z1, Z2, Z3 33.4 7,509 54.5 12,252
0.08
32.5
27.3
6000
5.6
Z1, Z2, Z3 29.7 6,678 59.8 13,444
0.08
31.5
27.9
6000
5.6
Z1, Z2, Z3 18.0 4,047 34.7 7,800
0.15
31.6
27.1
6000
5.3
Z1, Z2, Z3 23.8 5,351 63.1 14,185
0.08
39.3
36.9
6000
9.0
Z1, Z2, Z3 38.0 8,544 69.1 15,534
0.08
39.3
34.1
6000
8.4
Z1, Z2, Z3 33.3 7,487 76.1 17,108
0.08
39.5
35.9
6000
9.0
Z1, Z2, Z3 35.0 7,869 101.9 22,908
0.08
38.7
36.3
6000
9.0
Z1, Z2, Z3 68.7 15,446 155.8 35,025
0.08
49.3
44.1
6000
13.5
Z1, Z2, Z3 60.0 13,490 136.3 30,641
0.08
49.3
44.1
6000
13.5
Z1, Z2, Z3 76.0 17,086 197.0 44,290
0.08
62.6
57.2
6000
22.0
Z1, Z2, Z3 65.1 14,635 169.5 38,105
0.08
62.6
57.2
6000
22.0
(1) -P3 Accuracy Class is ±12µm/300 mm. and is available upon request for most sizes.
(2) Thomson NEFF Rolled Ball Screws, Ball Nuts and End Blocks can be sold together as assemblies or separately as components (preloaded ball nuts sold only as an assembly).
(3) All ball screws and nuts are right-hand thread.
(4) Double nut pre-load systems (for up to 10% of dynamic load rating) are also available for all sizes. Contact customer service for more details.
(5) Round flange.
(6) Dimensional information on bearing supports and standard end machining is available on page 154.
(7) Max. length includes 200mm on each end usable for end machining only. Max. travel length equals table value minus 400mm. Ends are soft annealed.
126
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Thomson NEFF Rolled Ball Screws — KGF-D Style Ball Nuts
FORM E
10
FORM S
(4x) D5 on D4 B.C.D.
L10
L10
-0.2
G x Lg
G x Lg
22.5°
-0.2
D1 -0.8
D4
D4
6 x D5
D6
HOLE PATTERN 2
FLANGED FORM B
TO DIN 69051
L7
L7
L1
90°
L8
90°
D6
(6x) D5 on D4 B.C.D.
HOLE PATTERN 1
FLANGED FORM B
TO DIN 69051
D1 g6
D1 g6 D1 -0.8
L6
L2
L2
L1
30°
L8
90°
30°
MATERIAL: 1.7131 (ESP65) / 1.3505 (100 Cr 6)
8 x D5
Nut Specifications (mm)
Nominal
Diameter
(size)
Lead
(mm)
12
16
16
20
25
25
25
25
25
32
32
32
32
40
40
40
40
50
50
63
63
(mm)
10
5
10
5
5
10
20
25
50
5
10
20
32
5
10
20
40
10
20
10
20
Hole
Pattern
D1
0
1
1
1
1
1
1
1
1
1
1
1
1
2
2
2
2
2
2
2
2
g6
24.0
28.0
28.0
36.0
40.0
40.0
40.0
40.0
40.0
50.0
53.0
53.0
50.0
63.0
63.0
63.0
63.0
75.0
85.0
90.0
95.0
www.thomsonlinear.com
D4
32.0
38.0
38.0
47.0
51.0
51.0
51.0
51.0
51.0
65.0
65.0
65.0
65.0
78.0
78.0
78.0
78.0
93.0
103.0
108.0
115.0
D5
4.5
5.5
5.5
6.6
6.6
6.6
6.6
6.6
6.6
9.0
9.0
9.0
9.0
9.0
9.0
9.0
9.0
11.0
11.0
11.0
14.0
D6
40.0
48.0
48.0
58.0
62.0
62.0
62.0
62.0
62.0
80.0
80.0
80.0
80.0
93.0
93.0
93.0
93.0
110.0
125.0
125.0
135.0
L1
9.5
10.0
10.0
10.0
10.0
16.0
4.0
9.0
10.0
10.0
16.0
16.0
12.0
10.0
16.0
16.0
16.0
16.0
22.0
16.0
25.0
L2
27.5
42.0
55.0
42.0
42.0
55.0
35.0
35.0
58.0
55.0
69.0
80.0
42.0
57.0
71.0
80.0
85.0
95.0
95.0
97.0
99.0
L6
5.0
—
—
—
—
—
10.5
8.0
10.0
—
—
—
9.0
—
—
—
7.5
—
—
—
—
L7
8.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
12.0
12.0
12.0
12.0
14.0
14.0
14.0
14.0
16.0
18.0
18.0
20.0
L8
26.0
40.0
40.0
44.0
48.0
48.0
48.0
N/A(5)
48.0
62.0
62.0
62.0
62.0
70.0
70.0
70.0
N/A(5)
85.0
95.0
95.0
100.0
L9
6.0
10.0
10.0
10.0
10.0
10.0
8.0
8.0
8.0
10.0
10.0
10.0
8.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
10.0
L10
4.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
5.0
6.0
6.0
6.0
6.0
7.0
7.0
7.0
7.0
8.0
9.0
9.0
10.0
Lube Hole No. of
Nut
Ball
(G)
Circuits Weight Diameter
M 5x.8
M6
M6
M6
M6
M6
M6
M6
M6
M6
M 8x1
M6
M6
M6
M 8x1
M 8x1
M 8x1
M 8x1
M 8x1
M 8x1
M 8x1
4
3
6
3
3
3
4
5
5
5
3
4
4
5
3
4
8
5
4
5
4
22.5°
8
d0 ≥ 40mm M8 x 1
12mm < d0 < 40mm
L8
L10
L8
D7
d0 < 40mm M6 x 1
12mm Only
60°
HOLE PATTERN 0
(kg)
0.10
0.20
0.30
0.25
0.35
0.45
0.30
0.65
0.40
0.55
0.90
1.10
0.80
0.70
1.20
1.50
1.20
2.00
2.50
2.95
2.95
(mm)
2.000
3.500
3.000
3.500
3.500
3.500
3.500
3.500
3.500
3.500
7.140
5.000
3.969
3.500
7.140
5.000
3.500
7.140
7.140
7.140
7.140
127
Thomson NEFF Rolled Ball Screws — KGF-N Style Ball Nuts
Standard Lead Accuracy: ± 23µm/300mm(1)
p145
Quick Install
Available for 32x40 Only
KGF-N Style Nut
Internal Return Flanged Ball Nut and Screw
• Flexible solution for non-standard mounting
• Integral wiper and flange included as standard
• Available in three preload classes (Type Z1, Z2, Z3)
Z1 – light preload to 1 – 2%
Z2 – no preload, clearance held to max indicated in table (standard unless specified)
Z3 – no preload, clearance held to max .05mm
Nominal
Diameter Lead Nut
(size)
Type
(mm)
(mm)
16
20
20
20
25
32
32
32
40
40
50
63
80
5
5
20
50
5
5
10
40
5
10
10
10
10
E
E
S
S
E
E
E
S
E
E
E
E
E
Ball Screw
P/N(1) (2) (3)
KGS-1605-023-RH
KGS-2005-023-RH
KGS-2020-023-RH
KGS-2050-023-RH
KGS-2505-023-RH
KGS-3205-023-RH
KGS-3210-023-RH
KGS-3240-023-RH
KGS-4005-023-RH
KGS-4010-023-RH
KGS-5010-023-RH
KGS-6310-023-RH
KGS-8010-050-RH
Ball Nut
P/N
Z2
Standard
KGF-N-1605-RH-EE
KGF-N-2005-RH-EE
KGF-N-2020-RH-EE
KGF-N-2050-RH-EE
KGF-N-2505-RH-EE
KGF-N-3205-RH-EE
KGF-N-3210-RH-EE
KGF-N-3240-RH-EE
KGF-N-4005-RH-EE
KGF-N-4010-RH-EE
KGF-N-5010-RH-EE
KGF-N-6310-RH-EE
KGF-N-8010-RH-EE
Performance Data
Screw Specifications(5)
Available
Preload Dynamic Load Static Load Max. Axial Major
Minor
Max. Screw
Types(4) Capacity (Cam) Capacity (Co) Backlash Diameter Diameter Length(6) Weight
(kN) (lbf) (kN) (lbf)
(mm)
(mm)
(mm)
(mm) (kg/m)
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
9.3 2,091 13.1 2,945
10.5 2,361 16.6 3,732
11.6 2,608 18.4 4,136
13.0 2,923 24.6 5,530
12.3 2,766 22.5 5,058
21.5 4,834 49.3 11,083
33.4 7,509 54.5 12,252
14.9 3,350 32.4 7,284
23.8 5,351 63.1 14,185
38.0 8,544 69.1 15,534
68.7 15,446 155.8 35,025
76.0 17,087 197.0 44,287
86.3 19,390 262.4 58,993
0.08
0.08
0.08
0.15
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
15.3
19.3
19.3
18.9
24.3
31.3
32.5
30.7
39.3
39.3
49.3
62.3
79.7
12.9
16.9
16.9
16.5
21.9
28.9
27.3
28.3
36.9
34.1
44.1
57.1
74.2
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000(7)
1.3
2.0
2.0
2.0
3.3
5.6
5.6
5.6
9.0
8.4
13.5
22.0
36.4
(1) -P3 Accuracy Class is ±12µm/300 mm. and is available upon request for most sizes.
(2) Thomson NEFF Rolled Ball Screws, Ball Nuts and End Blocks can be sold together as assemblies or separately as components (preloaded ball nuts sold only as an assembly).
(3) All ball screws and nuts are right-hand thread.
(4) Double nut pre-load systems (for up to 10% of dynamic load rating) are also available for all sizes. Contact customer service for more details.
(5) Dimensional information on bearing supports and standard end machining is available on page 154.
(6) Max. length includes 200mm on each end usable for end machining only. Max. travel length equals table value minus 400mm. Ends are soft annealed.
(7) T7 Lead Accuracy (P5 available but limited to 4000mm)
128
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Thomson NEFF Rolled Ball Screws — KGF-N Style Ball Nuts
FORM E
FORM S
L10
L10
D1 g6
-0.2
D1 -0.8
HOLE PATTERN 3
THOMSON NEFF
STANDARD
D1 g6
G x Lg
G x Lg
6 x 60°
30°
-0.2
D1 -0.8
D4
D4
D6
D6
L7
L7
L1
L6
L2
L2
L1
6 x D5
MATERIAL: 1.7131 (ESP65) / 1.3505 (100 Cr 6)
Nut Specifications (mm)
Nominal
Diameter
(size)
Lead
(mm)
(mm)
g6
16
20
20
20
25
32
32
32
40
40
50
63
80
5
5
20
50
5
5
10
40
5
10
10
10
10
28.0
32.0
35.0
35.0
38.0
45.0
53.0
53.0
53.0
63.0
72.0
85.0
105.0
D1
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D4
D5
D6
L1
L2
L6
L7
L9
L10
Lube Hole (G)
No. of
Circuits
Nut
Weight
Ball
Diameter
(kg)
(mm)
38.0
45.0
50.0
50.0
50.0
58.0
68.0
68.0
68.0
78.0
90.0
105.0
125.0
5.5
7.0
7.0
7.0
7.0
7.0
7.0
7.0
7.0
9.0
11.0
11.0
14.0
48.0
55.0
62.0
62.0
62.0
70.0
80.0
80.0
80.0
95.0
110.0
125.0
145.0
8.0
8.0
4.0
10.0
8.0
10.0
10.0
14.0
10.0
10.0
10.0
10.0
10.0
44.0
44.0
30.0
56.0
46.0
59.0
73.0
45.0
59.0
73.0
97.0
99.0
101.0
—
—
8.0
9.0
—
—
—
7.5
—
—
—
—
—
12.0
12.0
10.0
10.0
14.0
16.0
16.0
16.0
16.0
16.0
18.0
20.0
22.0
8.0
8.0
8.0
8.0
8.0
8.0
8.0
10.0
8.0
8.0
8.0
8.0
8.0
6.0
6.0
5.0
5.0
7.0
8.0
8.0
8.0
8.0
8.0
9.0
10.0
11.0
M6
M6
M6
M6
M6
M6
M 8x1
M6
M6
M 8x1
M 8x1
M 8x1
M 8x1
3
3
4
5
3
5
3
4
5
3
5
5
5
0.20
0.25
0.25
0.40
0.35
0.55
0.90
0.45
0.70
1.20
2.00
2.80
3.90
3.500
3.500
3.500
3.500
3.500
3.500
7.140
3.500
3.500
7.140
7.140
7.140
7.144
129
Thomson NEFF Rolled Ball Screws — KGM-D Style Ball Nuts
Standard Lead Accuracy: ± 23µm/300mm(1)
Threaded ball nut and screw, offering low cost, high precision performance in applications typically requiring ground product.
p145
Quick Install
Available for Select Nuts
KGM-D Style Nut
Internal Return Cylindrical Ball Nut and Screw
• Flexible solution for standard mounting
• Integral wiper included as standard
• Available in three preload classes (Type Z1, Z2, Z3)
Z1 – light preload to 1-2%
Z2 – no preload, clearance held to max indicated in table (standard unless specified)
Z3 – no preload, clearance held to max .05mm
Nominal
Diameter Lead Nut
(size)
Type
(mm)
(mm)
12
16
16
20
25
25
25
25
25
32
40
40
40
40
50
63
63
10
5
10
5
5
10
20
25
50
5
5
10
20
40
10
10
20
S
E
E
E
E
E
S
S
S
E
E
E
E
S
E
E
E
Ball Screw
P/N(1) (2) (3)
KGS-1210-023-RH
KGS-1605-023-RH
KGS-1610-023-RH
KGS-2005-023-RH
KGS-2505-023-RH
KGS-2510-023-RH
KGS-2520-023-RH
KGS-2525-023-RH
KGS-2550-023-RH
KGS-3205-023-RH
KGS-4005-023-RH
KGS-4010-023-RH
KGS-4020-023-RH
KGS-4040-023-RH
KGS-5010-023-RH
KGS-6310-023-RH
KGS-6320-023-RH
Ball Nut
P/N
Z2
Standard
KGM-D-1210-RH-OO
KGM-D-1605-RH-EE
KGM-D-1610-RH-EE
KGM-D-2005-RH-EE
KGM-D-2505-RH-EE
KGM-D-2510-RH-EE
KGM-D-2520-RH-EE
KGM-D-2525-RH-EE
KGM-D-2550-RH-EE
KGM-D-3205-RH-EE
KGM-D-4005-RH-EE
KGM-D-4010-RH-EE
KGM-D-4020-RH-EE
KGM-D-4040-RH-EE
KGM-D-5010-RH-EE
KGM-D-6310-RH-EE
KGM-D-6320-RH-EE
Performance Data
Screw Specifications(5)
Available
Preload Dynamic Load Static Load Max. Axial Major
Minor
Max. Screw
Types(4) Capacity (Cam) Capacity (Co) Backlash Diameter Diameter Length(6) Weight
(kN) (lbf) (kN) (lbf)
(mm)
(mm)
(mm)
(mm) (kg/m)
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
4.9 1,102 8.0 1,799
9.3 2,091 13.1 2,945
15.4 3,463 26.5 5,957
10.5 2,361 16.6 3,732
12.3 2,766 22.5 5,058
13.2 2,947 25.3 5,688
13.0 2,923 23.3 5,238
16.7 3,755 32.2 7,239
15.4 3,463 31.7 7,126
21.5 4,834 49.3 11,083
23.8 5,351 63.1 14,185
38.0 8,544 69.1 15,534
33.3 7,487 76.1 17,108
35.0 7,869 101.9 22,908
82.0 18,435 153.0 34,398
90.0 20,234 200.0 44,964
65.1 14,635 169.5 38,105
0.08
0.08
0.08
0.08
0.08
0.08
0.15
0.08
0.15
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
11.5
15.3
15.2
19.3
24.3
24.3
24.4
24.3
23.9
31.3
39.3
39.3
39.5
38.7
49.6
62.6
62.6
10.1
12.9
13.0
16.9
21.9
21.9
22.0
22.0
21.5
28.9
36.9
34.1
35.9
36.3
44.1
57.2
57.2
3000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
0.8
1.3
1.3
2.0
3.3
3.3
3.3
3.3
3.3
5.6
9.0
8.4
9.0
9.0
13.5
22.1
22.0
(1) -P3 Accuracy Class is ±12µm/300 mm. and is available upon request for most sizes.
(2) Thomson NEFF Rolled Ball Screws, Ball Nuts and End Blocks can be sold together as assemblies or separately as components (preloaded ball nuts sold only as an assembly).
(3) All ball screws and nuts are right-hand thread.
(4) Double nut pre-load systems (for up to 10% of dynamic load rating) are also available for all sizes. Contact customer service for more details.
(5) Dimensional information on bearing supports and standard end machining is available on page 154.
(6) Max. length includes 200mm on each end usable for end machining only. Max. travel length equals table value minus 400mm. Ends are soft annealed.
130
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Thomson NEFF Rolled Ball Screws — KGM-D Style Ball Nuts
FORM E
FORM S
L8
D8
D8
BP9 x T
BP9 x T
D1 g6
L8
L9
-0.2
D1 g6
D1 -0.8
L9
L10
L2
L10
L2
MATERIAL: 1.7131 (ESP65) / 1.3505 (100 Cr 6)
Nut Specifications (mm)
Nominal Diameter
(size)
Lead
(mm)
(mm)
g6
12
16
16
20
25
25
25
25
25
32
40
40
40
40
50
63
63
10
5
10
5
5
10
20
25
50
5
5
10
20
40
10
10
20
24.0
28.0
28.0
36.0
40.0
40.0
40.0
40.0
40.0
50.0
63.0
63.0
63.0
63.0
75.0
90.0
95.0
D1
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D8
2.0
3.0
3.0
3.0
3.0
3.0
1.5
1.5
1.5
3.0
3.0
4.0
3.0
1.5
4.0
4.0
4.0
L2
27.5
34.0
50.0
34.0
34.0
45.0
35.0
35.0
58.0
45.0
45.0
60.0
70.0
85.0
82.0
82.0
82.0
L8
7.0
7.0
7.0
7.0
7.0
7.5
14.0
11.5
17.0
7.5
7.5
10.0
7.5
15.0
11.0
11.0
10.0
L9
8.75
7.0
15.0
7.0
7.0
12.5
11.5
11.0
19.0
8.0
8.0
15.0
20.0
27.5
23.0
23.0
23.0
L10
10.0
20.0
20.0
20.0
20.0
20.0
12.0
13.0
20.0
30.0
30.0
30.0
30.0
30.0
36.0
36.0
36.0
BxT
3x1.8
5x2
5x2
5x2
5x2
5x2
5x3
5x3
5x3
6x2.5
6x2.5
6x2.5
6x2.5
6x3.5
6x2.5
6x2.5
6x2.5
No. of Circuits
4
3
6
3
3
3
4
5
5
5
5
3
4
8
5
5
4
Nut
Weight
Ball
Diameter
(kg)
(mm)
0.10
0.10
0.20
0.20
0.20
0.24
0.20
0.45
0.30
0.50
0.80
1.00
1.20
0.90
0.90
0.90
1.95
2.000
3.500
3.000
3.500
3.500
3.500
3.500
3.500
3.500
3.500
3.500
7.140
5.000
3.500
7.144
7.144
7.140
131
Thomson NEFF Rolled Ball Screws — KGM-N Style Ball Nuts
Standard Lead Accuracy: ± 23µm/300mm(1)
Threaded ball nut and screw, offering low cost, high precision performance in applications typically requiring ground product.
p145
Quick Install
Available for Select Nuts
KGM-N Style Nut
Internal Return Cylindrical Ball Nut and Screw
• Flexible solution for non-standard mounting
• Integral wiper included as standard(5)
• Available in three preload classes (Type Z1, Z2, Z3)
Z1 – light preload to 1 – 2%
Z2 – no preload, clearance held to max indicated in table (standard unless specified)
Z3 – no preload, clearance held to max .05mm
Nominal
Diameter Lead Nut
(size)
Type
(mm)
(mm)
12
20
20
20
25
32
32
32
32
40
50
50
63
80
5
5
20
50
5
5
10
20
40
5
10
20
10
10
E
E
S
S
E
E
E
E
S
E
E
E
E
E
Ball Nut
P/N
Ball Screw
P/N(1) (2) (3)
KGS-1205-023-RH
KGS-2005-023-RH
KGS-2020-023-RH
KGS-2050-023-RH
KGS-2505-023-RH
KGS-3205-023-RH
KGS-3210-023-RH
KGS-3220-023-RH
KGS-3240-023-RH
KGS-4005-023-RH
KGS-5010-023-RH
KGS-5020-023-RH
KGS-6310-023-RH
KGS-8010-050-RH
Z2
Standard
KGM-N-1205-RH-OO
KGM-N-2005-RH-EE
KGM-N-2020-RH-EE
KGM-N-2050-RH-EE
KGM-N-2505-RH-EE
KGM-N-3205-RH-EE
KGM-N-3210-RH-EE
KGM-N-3220-RH-EE
KGM-N-3240-RH-EE
KGM-N-4005-RH-EE
KGM-N-5010-RH-EE
KGM-N-5020-RH-EE
KGM-N-6310-RH-EE
KGM-N-8010-RH-EE
Performance Data
Screw Specifications(7)
Available
Preload Dynamic Load Static Load Max. Axial Major
Minor
Max. Screw
Types(4) Capacity (Cam) Capacity (Co) Backlash Diameter Diameter Length(8) Weight
(kN) (lbf) (kN) (lbf)
(mm)
(mm)
(mm)
(mm) (kg/m)
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
Z1, Z2, Z3
4.4 990
10.5 2,361
11.6 2,608
13.0 2,923
12.3 2,766
21.5 4,834
33.4 7,509
29.7 6,678
14.9 3,350
23.8 5,351
68.7 15,446
60.0 13,490
76.0 17,087
86.3 19,402
6.8
16.6
18.4
24.6
22.5
49.3
54.5
59.8
32.4
63.1
155.8
136.3
197.0
262.4
1,529
3,732
4,136
5,530
5,058
11,083
12,252
13,444
7,284
14,185
35,025
30,641
44,287
58,993
0.08
0.08
0.08
0.15
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
0.08
11.3
19.3
19.3
18.9
24.3
31.3
32.5
31.5
30.7
39.3
49.3
49.3
62.3
79.7
10.1
16.9
16.9
16.5
21.9
28.9
27.3
27.9
28.3
36.9
44.1
44.1
57.1
74.2
1500(9)
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000
6000(10)
0.8
2.0
2.0
2.0
3.3
5.6
5.6
5.6
5.6
9.0
13.5
13.5
22.0
36.4
(1) -P3 Accuracy Class is ±12µm/300 mm. and is available upon request for most sizes.
(2) Ball screws, ball nuts and end blocks can be sold together as assemblies or separately as components (preloaded ball nuts sold only as an assembly).
(3) All ball screws and nuts are right-hand thread.
(4) Double nut pre-load systems (for up to 10% of dynamic load rating) are also available for all sizes. Contact customer service for more details.
(5) 12x5 nut does not include wiper.
(6) D1 -0.2/-0.8 does not apply, therefore D1 -1.0/-1.5.
(7) Dimensional information on bearing supports and standard end machining is available on page 154.
(8) Max. length includes 200mm on each end usable for end machining only. Max. travel length equals table value minus 400mm. Ends are soft annealed.
(9) Max. length includes 100mm on each end usable for end machining only. Max. travel length equals table value minus 200mm. Ends are soft annealed.
(10) T7 Lead Accuracy (P5 available but limited to 4000mm)
132
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Lead Screws, Ball Screws and Ball Splines
Thomson NEFF Rolled Ball Screws — KGM-N Style Ball Nuts
FORM E
FORM S
L8
D8
D8
BP9 x T
BP9 x T
D1 g6
L8
L9
D1 -0.2
-0.8
D1 g6
L9
L10
L2
L10
L2
MATERIAL: 1.7131 (ESP65) / 1.3505 (100 Cr 6)
Nut Specifications (mm)
Nominal Diameter
(size)
Lead
(mm)
(mm)
g6
12
20
20
20
25
32
32
32
32
40
50
50
63
80
5
5
20
50
5
5
10
20
40
5
10
20
10
10
20.0(5)
32.0
35.0
35.0
38.0
45.0
53.0
53.0
53.0(6)
53.0
72.0
85.0
85.0
105.0
D1
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D8
L2
L8
L9
L10
BxT
No. of Circuits
—
3.0
1.5
1.5
3.0
3.0
4.0
3.0
1.5
3.0
4.0
4.0
4.0
4.0
24.0
34.0
30.0
56.0
34.0
45.0
60.0
70.0
45.0
45.0
82.0
82.0
82.0
82.0
—
7.0
11.5
16.0
7.0
7.5
10.0
7.5
13.0
7.5
11.0
10.0
11.0
11.0
5.0
7.0
9.0
18.0
7.0
8.0
15.0
20.0
10.0
8.0
23.0
23.0
23.0
23.0
14.0
20.0
12.0
20.0
20.0
30.0
30.0
30.0
25.0
30.0
36.0
36.0
36.0
36.0
3x1.8
5x2
5x3
5x3
5x2
6x2.5
6x2.5
6x2.5
6x4
6x2.5
6x2.5
6x2.5
6x2.5
8x3
3
3
4
5
3
5
3
4
4
5
5
4
5
5
Nut
Weight
(kg)
Ball
Diameter
(mm)
0.03
0.10
0.14
0.30
0.15
0.30
0.55
0.80
0.46
0.60
1.10
1.40
1.45
3.90
2.000
3.500
3.500
3.500
3.500
3.500
7.140
5.000
3.500
3.500
7.140
7.140
7.140
7.144
133
NOTES:
134
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Precision Plus Ball Screws — Metric Series
Precision Plus Ball Screw Assemblies are our highest precision
product, with standard lead accuracies of 12 microns/ 300mm.
These ball screw assemblies feature our FL-style ball nut,
precisely preloaded to customer specifications. This unique nut
design provides high repeatability and high stiffness for the most
demanding ball screw applications. Each nut comes standard with
an integral plastic wiper to protect against chips and other debris.
Precision Plus Ball Screws are ideal for applications requiring high
repeatability and high stiffness (e.g., high precision machine tool).
www.thomsonlinear.com
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
135
Precision Plus Ball Screws — Metric Series
Standard Lead Accuracy: ± 12µm/300mm
Flanged ball nut and screw assembly, offering the highest level of accuracy, repeatability and stiffness.
FL Style Nut
Internal Return Flanged Ball Nut and Screw
• Excellent accuracy, repeatability and stiffness
• Features Z0 Type preload (range from 2% to 13%, to customer specification)
• Nut stiffness based on 10% preload (F = 10% x Cam)
• Integral wiper and flange included as standard
• Additional sizes available in diameters up to 160mm. Contact us for more details.
Nominal
Ball Scew
Diameter Lead Nut
and
(size)
Type Nut Assembly Dynamic Load
Capacity (Cam)
P/N(1) (2)
(mm)
(mm)
(kN)
(lbf)
16
20
25
32
32
40
40
50
63
5
5
5
5
10
5
10
10
10
FL
FL
FL
FL
FL
FL
FL
FL
FL
7832835
7832838
7832841
7832862
7832844
7832847
7832850
7832853
7832856
Performance Data
Static Load
Capacity (Co)
(kN)
(lbf)
6.7 1,506 7.2 1,619
11.5 2,585 15.5 3,485
12.6 2,833 19.1 4,294
19.3 4,339 36.4 8,183
26.4 5,935 39.0 8,768
26.3 5,912 59.2 13,309
64.9 14,590 109.0 24,504
69.0 15,511 142.2 31,966
93.8 21,087 229.7 51,639
Minimum
Stiffness
Screw Specifications(3)
Max. Axial
No. of
Major
Minor
Max.(4)
Backlash Loaded Turns Diameter Diameter Length
Screw
Weight
(kN/µm)
(mm)
(turns)
(mm)
(mm)
(mm)
(kg/m)
0.16
0.30
0.38
0.60
0.49
0.89
0.94
1.18
1.74
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
0.00
2+2
3+3
3+3
4+4
3+3
5+5
4+4
4+4
5+5
15.6
19.6
24.5
31.6
31.6
39.6
39.6
49.5
62.5
12.7
16.7
21.7
28.7
27.1
36.7
34.0
43.0
56.9
3000
4000
4100
4100
4100
4100
4100
4100
4100
1.2
2.0
3.3
5.6
5.3
9.0
8.3
13.5
22.0
(1) End Blocks can be sold together as assemblies or separately as components (preloaded ball nuts sold only as an assembly).
(2) All ball screws and nuts are right-hand thread.
(3) Dimensional information on bearing supports and standard end machining is available on page 154.
(4) Longer screws are available (up tp 11000) for some sizes at P5 Accuracy Class (23µm/300 mm).
136
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Lead Screws, Ball Screws and Ball Splines
Precision Plus Ball Screws — Metric Series
L10
D7
D1 +0.1
-0.6
D1
D6
D1 +0.0
-0.3
MAJOR Ø
MINOR Ø
D5
WIPER
L1
L7
L3
L
10
90°
L8
30°
30°
8
d0 ≥ 40mm M8 x 1
d0 ≥ 40mm
22.5°
L10
L8
D7
d0 < 40mm M6 x 1
90°
d0 < 40mm
(6x) D5 on D4 B.C.D.
(8x) D5 on D4 B.C.D.
Nut Specifications (mm)
Nominal
Diameter
(size)
Lead
(mm)
(mm)
g6
16
20
25
32
32
40
40
50
63
5
5
5
5
10
5
10
10
10
28.0
36.0
40.0
50.0
50.0
63.0
63.0
75.0
90.0
D1
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D4
38.0
47.0
51.0
65.0
65.0
78.0
78.0
93.0
108.0
D5
D6
H13
h13
5.5
6.6
6.6
9.0
9.0
9.0
9.0
11.0
11.0
48.0
58.0
62.0
80.0
80.0
93.0
93.0
110.0
125.0
L
L1
L3
L7
L8
Nut
Weight
Ball
Diameter
h13
h13
(kg)
(mm)
55.0
68.5
69.5
83.0
105.5
97.0
142.0
144.0
166.0
10.0
10.0
10.0
12.0
12.0
14.0
14.0
16.0
18.0
5.5
5.5
6.0
6.0
6.0
7.0
7.0
7.0
7.0
10.0
10.0
10.0
12.0
12.0
14.0
14.0
16.0
18.0
40.0
44.0
48.0
62.0
62.0
70.0
70.0
85.0
95.0
0.3
0.4
0.4
0.7
0.8
1.3
1.5
2.2
3.3
3.500
3.500
3.500
3.500
3.500
3.500
7.144
7.144
7.144
137
NOTES:
138
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Ball Splines
A Thomson Precision ball spline consists of mating inner and outer
races containing concave axial races and a complement of bearing
balls. The balls provide the only physical contact between the inner
and outer races. Unlimited rolling travel is achieved by diverting the
path of the balls at the extremes of the outer race into the end cap
return circuit. This provides a closed loop through which the balls
recirculate when the races are displaced axially relative to each
other. The bearing balls resist radial displacement resulting from
torque loads.
• Efficiency — coefficient of friction .007 maximum
• Hardness — minimum of RC 56 in ball race
• Lash — .005 inch maximum standard play perpendicular to
rotational axis
www.thomsonlinear.com
Need a quote or have a question about an application?
Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
139
Precision Rolled Ball Splines
0.375 in to 6.000 in Diameter
Inner and Outer Spline Races
• Offers high speed, anti-friction linear motion under high torsional loads
• All units available with and without keyway
•
All sizes stocked for quick delivery
Performance Data
Nominal
Diameter
(in.)
0.375
0.625
0.625
1.000
1.000
1.500
1.500
2.000
2.000
2.500
2.500
4.062
6.000
Active
Races(1)(2)
Inner
Race
P/N
Outer Race
P/N
(w/o keyway)
Outer Race
P/N
(w/ keyway)
3
3
6
3
6
3
6
3
6
3
6
6
8
5707547
5707548
5707548
5706084
5706084
5706388
5706388
5706436
5706436
5706484
5706484
5702204
5704982
5706900
5707445
5708943
5707472
5708944
5707528
5708945
5707530
5708946
5707532
5708947
5708330
5704798
7828127
7828128
7828129
7828130
7828131
7828132
7828133
7828134
7828135
7828136
7828137
7828138
7828140
Inner Race Specifications
Dynamic
Load
Capacity
(Cam)
Static
Torque
Capacity
(Co)
Max.
Diametral
Backlash
Max.
Angular
Backlash
Root
Diameter
Standard
Length
Inner
Weight
(in-lb)
200
585
1,170
1,300
2,600
4,200
8,400
8,000
16,000
13,500
27,000
57,000
214,700
(in-lb)
626
1,770
3,540
3,900
7,800
11,588
23,176
20,138
40,276
36,625
62,250
140,000
584,000
(in.)
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.005
0.007
(radians)
0.0266
0.0160
0.0160
0.0100
0.0100
0.0067
0.0067
0.0050
0.0050
0.0040
0.0040
0.0025
0.0023
(in.)
0.200
0.425
0.425
0.800
0.800
1.230
1.230
1.670
1.670
2.100
2.100
3.660
5.470
(in.)
24
48
48
144
144
144
144
144
144
144
144
144
72
(lb/in)
0.02
0.06
0.06
0.17
0.17
0.4
0.4
0.75
0.75
1.17
1.17
3.13
7.01
(1) Dimensional information on bearing supports and standard end machining is available on page 154.
(2) Information on required lubrication is on page 233.
140
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Lead Screws, Ball Screws and Ball Splines
Precision Rolled Ball Splines
ØRoot
D
L1
L
DEPTH
LENGTH
WIDTH
D
ØRoot
30º
L1
L
Outer Race Specifications
Nominal Diameter Active
Races
(in.)
0.375
0.625
0.625
1.000
1.000
1.500
1.500
2.000
2.000
2.500
2.500
4.062
6.000
3
3
6
3
6
3
6
3
6
3
6
6
8
www.thomsonlinear.com
D
(max.)
(in.)
1.161
1.531
1.531
1.906
1.906
2.693
2.693
3.427
3.427
4.170
4.170
5.6245
8.625
L
L1
Keyway Dimensions (Optional)
(Width x Depth x Length)
Outer
Weight
Ball
Diameter
(in.)
1.589
2.035
2.035
2.598
2.598
3.719
3.719
4.022
4.022
4.426
4.426
5.495
7.495
(in.)
1.099
1.505
1.505
2.068
2.068
3.005
3.005
3.130
3.130
3.380
3.380
4.500
5.995
(in.)
0.187 x 0.093 x 1.000
0.250 x 0.125 x 1.125
0.250 x 0.125 x 1.125
0.250 x 0.125 x 1.625
0.250 x 0.125 x 1.625
0.250 x 0.125 x 2.000
0.375 x 0.187 x 2.000
0.250 x 0.125 x 2.500
0.500 x 0.219 x 2.500
0.250 x 0.125 x 3.000
0.500 x 0.250 x 3.000
1.000 x 0.500 x 3.500
1.000 x 0.500 x 5.500
(lb)
0.25
0.37
0.37
0.92
0.92
3.33
3.33
5.42
5.42
7.50
7.50
14.50
51.52
(in.)
0.156
0.187
0.187
0.187
0.187
0.250
0.250
0.312
0.312
0.375
0.375
0.375
0.500
141
NOTES:
142
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining
Table of Contents
DescriptionPage
Product Overview...........................................................................................144
Quick Install Assemblies...............................................................................147
BK/BF Supports...............................................................................................154
Need a quote or have a question about an
application? Contact us in North America at:
Phone: 540-633-3549
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
FK/FF Supports................................................................................................160
MK Supports....................................................................................................166
WK Supports....................................................................................................168
QK/QF Supports...............................................................................................172
www.thomsonlinear.com
143
Bearing Supports/End Machining Product Overview
Thomson Bearing Supports — complete package for simple mounting of Thomson ball screw and ball spline assemblies.
Flange and Base mounts available with dual angular contact bearings or floating radial bearing.
• Rugged steel construction
• Pre-assembled and ready for installation
• Low profile, compact design
• Available off-the-shelf
• Base or Flange mounting configurations
BK Bearing Support(1)(2)
The base mounted BK Bearing Support contains an angular contact
bearing pair for increased stiffness and axial load capacity. Design
dimensions fit standard Type BK or BK1 end machining.
BF Bearing Support(1)(3)
FK Bearing Support(1)(2)
The flange mounted FK Bearing Support contains an angular contact
bearing pair for increased stiffness and axial load capacity. Design
dimensions fit standard Type FK or FK1 end machining.
FF Bearing Support(1)(3)
The
Base mounted BF Bearing Support contains a floating radial bearing
to allow axial shaft movement. Design dimensions fit standard Type
BF or BF1 end machining.
The flange mounted FF Bearing Support contains a floating radial
bearing to allow axial shaft movement. Design dimensions fit
standard Type FF or FF1 end machining.
(1) BK and FK supports are classified as “fixed” and BF and FF supports are classified as “simple” for purposes of critical speed and column
strength calculations.
(2) Locknut included in assembly
(3) Retaining ring included in assembly
144
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining Product Overview
Thomson Bearing Supports — a unitized package for simple mounting of Thomson ball screw and ball spline assemblies.
Both “Floating” and “Fixed” style bearing supports are available.
• Rugged steel construction
• Pre-assembled and ready for installation
• Low profile, compact design
• Available off-the-shelf for quick building convenience
• Foot or face mounting
QF Bearing Support(1)(2)
QK Bearing Support(1)(2)
SPACER
SEALS
DEEP GROOVE
RADIAL BALL BEARING
ANGULAR CONTACT BEARINGS
BACK TO BACK MOUNTING
UNLESS OTHERWISE STATED
SPACER
LOCKING WASHER
LOCKING WASHER
LOCK NUT
LOCK NUT
The QF Bearing Support provides a single deep groove radial
ball bearing. Design dimensions fit standard Type QF or QF1 end
machining.
The QK Bearing Support contains high angular contact bearings
arranged in a back-to-back (DB) configuration for high stiffness.
Design dimensions fit standard Type QK or QK1 end machining.
MK Bearing Support(3)
WK Bearing Support(3)
SPACER
SPACER
LOCK
LOCKNUT
NUT
SEAL
SEAL
MOTORADAPTER
ADAPTER
MOTOR
ANGULAR CONTACT BEARINGS
ANGULAR CONTACT BEARINGS
SPACER
SPACER
SEAL
SEAL
FK
SUPPORT
FK END
END SUPPORT
LOCK NUT
LOCK NUT
Base mounted NEMA 23 or 34 motor mount. Design dimensions fit
standard Type FK end machining.
Heavy duty flange mounted WK support contains higher load capacity
bearings. Design dimensions fit standard WK or WK1 end machining.
(1) QK, MK, and WK supports are classified as “fixed” and QF supports are classified as “simple” for purposes of critical speed and column
strength calculations.
(2) Installation accessories (locknut and washer) included for complete assembly.
(3) Locknut included in assembly
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145
Bearing Supports Overview
Inch Series Ball Screws
Dia. x Lead
BK
BF
FK
FF
QK
QF
MK
WK
0.500
0.631
0.750
0.875
1.000
1.171
1.150
1.250
1.500 x 0.473 & 1.000
1.500
1.750
2.000
2.250
2.500
7833360
7833361
7833362
7833363
7833364
7833364
7833365
7833365
7833365
7833366
7833367
7833367
7833368
7833369
7833370
7833371
7833372
7833372
7833373
7833373
7833373
7833374
7833375
7833375
7833377
7833378
7833379
7833380
7833381
7833381
7833382
7833382
7833382
7833383
-
7833384
7833385
7833386
7833387
7833388
7833388
7833389
7833389
7833389
7833390
-
-
-
-
-
7828282
7824154
7824155
7824156
7824157
7824157
7824158
7824158
7824158
7824159
7829554
7824160
7824160
7824161
7833291
7833256
7833259
7833262
7833265
7833265
7833268
7833268
7833268
7833270
7833273
7833276
7833276
7833279
7833685
7833686
7833687
7833690
7833690
-
7833595
7833596
7833596
7833597
7833597
7833597
7833599
7833602
-
Metric Ball Screws
Dia. x Lead
BK
BF
FK
FF
QK
QF
MK
WK
12
16
20
25
32
40
50
63
7833391
7833392
7833393
7833394
7833395
7833396
7833397
-
7833398
7833399
7833400
7833401
7833402
7833403
7833404
-
7833405
7833406
7833407
7833408
7833409
7833410
-
7833411
7833412
7833413
7833414
7833415
7833416
-
7829546
7829547
7829548
7829549
7829550
7829551
7829552
7829553
7833292
7833282
7833283
7833284
7833285
7833286
7833287
7833288
7833700
7833701
7833702
7833703
-
7833614
7833615
7833617
7833621
-
Ball Splines
146
Nominal Size
BK
BF
FK
FF
QK
QF
MK
WK
0.625
1.000
1.500
2.000
2.500
7833360
7833364
7833365
7833367
-
7833368
7833372
7833373
7833375
-
7833377
7833381
7833382
-
7833384
7833388
7833389
-
7828282
7824157
7824159
7829554
7824161
7833291
7833265
7833270
7833273
7833279
7833685
7833690
-
7833596
7833597
7833602
-
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
BK
BF
FK
FF
MK
WK
Quick-Install Engineered Ball Screw Assemblies
Get the 'just-right' fit
• Step by step selection assistance based on application parameters
• New configurations available
° MK Supports - NEMA motor supports (Size 23 and 34)
° WK Supports - Heavy duty supports for demanding applications
Speed and simplify installation
• Pre-engineered assemblies to meet your system requirements
• Integrated ball screw and supports with motor ready mounting option
Drop in replacements, fast delivery
• Popular ball screw assemblies and accessories available fast for replacement installations
• Additional configurations and sizes available upon request
• Industry-leading delivery times on all ball screw assemblies
www.thomsonlinear.com
147
How to Select an Inch Series Ball Screw Assembly
Note: Motor, Gear Box and Coupling
are not included
Step 1 - Select ball screw diameter based on load capacity and mounting configuration
• Table below indicates maximum axial load that selected ball nut diameter and end configuration can support
• Select a ball screw diameter / end support configuration with a load capacity exceeding application requirement
Table 1 - End Support Axial Load Capacity (lbs)
Ball Screw
Dia.
BK - BK
BK - BF
FK - FK
FK - FF
MK - BK
MK - BF
WK - WK
0.500 in
0.631 in
0.750 in
0.875 in
1.000 in
1.150 in
1.500 in
2.000 in
860
957
1,058
1,821
1,887
3,126
4,140
8,086
430
478
529
910
944
1,563
2,070
4,043
860
957
1,058
1,821
2,588
3,126
4,140
-
430
478
529
910
1,294
1,563
2,070
-
860
957
1,058
2,238
-
430
478
529
1,294
-
9,877
9,877
12,831
13,139
14,330
Step 2 - Select lead
Step 3 - Verify life requirement of ball nut and end support
• Calculate life of ball screw assembly using L10 = (Cam / Load)3
million inches
• Calculate life of end supports using L10 = (Cam / Load per support)3
million revolutions
i.e. : Divide load by 2 if using 2 BK-BK, FK-FK, MK-BK, or WK-WK.
• Select preload if zero lash is required
• Select lead based on required speed
• Linear speed (in/min) = (RPM) x (Lead)
Table 2 - Ball Nut Part Number
Dia. x Lead
Standard Nut
Part Number
Preload Nut
Part Number
.500 x .200
.500 x .500
.631 x .200
.631 x 1.000
.750 x .200
.750 x .500
.875 x .200
1.000 x .250
1.000 x .500
1.000 x 1.000
1.150 x .200
1.500 x .250
1.500 x .473
1.500 x .500
1.500 x 1.000
1.500 x 1.875
1.500 x 2.000
2.000 x .500
2.000 x 1.000
8105-448-013
8105-448-014
8106-448-022
7826713
8107-448-018
8107-448-014
5708277
8110-448-055
8110-448-022
8110-448-086
8111-448-006
7833233
5707513
8115-448-016
5708280
5707654
8115-448-056
8120-448-011
8120-448-021
8105-448-008
8106-448-012
7827531
8107-448-025
8107-448-011
5704167
8110-448-016
8111-448-004
7833234
8115-448-006
5700698
5704272
8120-448-006
8120-448-019
148
Table 3 - Component Dynamic Capacity
Maximum
Screw
Length (in)
72.000
72.000
144.000
96.000
144.000
144.000
144.000
288 / 240
288.000
288.000
288.000
240.000
240.000
288.000
240.000
240.000
288.000
288.000
288.000
Dia. x Lead
Standard Nut
Cam (lb)
Preload Nut
Cam (lb)
BK Support
Cam (lb)
FK / MK Support
Cam (lb)
WK Suport
Cam (lb)
.500 x .200
.500 x .500
.631 x .200
.631 x 1.000
.750 x .200
.750 x .500
.875 x .200
1.000 x .250
1.000 x .500
1.000 x 1.000
1.150 x .200
1.500 x .250
1.500 x .473
1.500 x .500
1.500 x 1.000
1.500 x 1.875
1.500 x 2.000
2.000 x .500
2.000 x 1.000
1,200
929
800
578
950
3,450
1,942
1,612
3,950
2,400
2,400
4,198
10,050
14,513
8,250
7,242
7,600
18,500
21,200
1,200
800
578
950
3,450
1,612
3,950
2,400
4,198
14,513
8,250
7,242
18,500
21,200
430
430
478
478
529
529
910
1,656
1,656
1,656
2,742
3,632
3,632
3,632
3,632
3,632
3,632
7,093
7,093
430
430
478
478
529
529
910
2,270
2,270
2,270
2,742
3,632
3,632
3,632
3,632
3,632
3,632
-
5,980
5,980
5,980
5,980
9,105
9,667
9,667
9,667
9,667
9,667
9,667
11,691
11,691
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Step 4 - Verify screw meets critical speed limitation
• Acceptable length / speed combinations are below and left of the selected curve (screw diameter)
Speed vs Length (inch Series)
Figure 1 - Critical Speed Graph
BK -BF, FK-FF, MK-BF
10000
Ø0.500
Ø0.500 OD
OD
Ø0.631 OD
Ø0.631
OD
Speed vs Length (Inch Series)
BK -BF, FK-FF, MK-BF
Ø0.750 OD
Ø0.750
OD
Ø0.875 OD
Ø0.875
OD
Ø1.000 OD
Ø1.000
OD
Ø1.150 OD
Ø1.150
OD
Ø1.500 OD
Ø1.500
OD
Ø2.000
OD
Ø2.000 OD
RPM
1000
100
10
12
36
60
10000
84
108
132
Speed vs Length (Inch Series)
Travel Length (in)
WK-BK, WK-FK, MK-BK, FK-BK
Ø0.500
Ø0.500 OD
OD
Ø0.631 OD
Ø0.631
OD
Speed vs Length (Inch Series)
BK-BK, FK-FK, MK-BK, WK-WK
Ø0.750 OD
Ø0.750
OD
136
Ø0.875 OD
Ø0.875
OD
180
Ø1.000 OD
Ø1.000
OD
Ø1.150 OD
Ø1.150
OD
Ø1.500 OD
Ø1.500
OD
Ø2.000 OD
Ø2.000
OD
RPM
1000
100
10
12
36
60
84
108
132
136
180
Travel Length (in)
Step 5 - Build Quick-Install Engineered Ball Screw Part Number - Inch Series Example
1000x0500 S 48.000
FK - FK S
Ball Nut Size
Enter Dia. x Lead from above
Preload
S Standard w/Lash
P Preload w/o Lash
Travel Length
Enter inch travel length xxx.xxx format
(±.051 in tolerance standard)
Drive End Support - Opposite End Support
S
F
W
W Add (W)iper
X w/o Wiper (X)
F Flange
T Threaded
S Standard Orientation
(Flange or threaded end faces drive journal)
O Opposite Orientation
(Flange or threaded end faces away from drive journal)
S Single Drive Journal
J Journal (Secondary Drive Journal)
Step 6 - Contact Thomson Customer Support (Call 540-633-3549) or thomson@thomsonlinear.com or your
local Thomson Distributor to order
www.thomsonlinear.com
149
How to Select an Metric Series Ball Screw Assembly
Note: Motor, Gear Box and Coupling
are not included.
Step 1 - Select system based on load capacity and mounting configuration
• Table below indicates maximum axial load that selected ball nut diameter and end configuration can support
• Select a ball screw diameter / end support configuration with a load capacity exceeding application requirement
Table 1 - End Support Axial Load Capacity (N)
Ball Screw
Dia.
BK - BK
BK - BF
FK - FK
FK - FF
MK - BK
MK - BF
WK - WK
12mm
16mm
20mm
25mm
32mm
40mm
50mm
3,824
4,256
4,707
8,394
13,905
18,416
35,969
1,912
2,128
2,353
4,197
6,952
9,208
17,984
3,824
4,256
4,707
11,512
13,905
18,416
-
1,912
2,128
2,353
5,756
6,952
9,208
-
3,824
4,256
4,707
9,953
-
1,912
2,128
2,353
5,756
-
43,931
57,071
58,444
63,739
Step 2 - Select lead
Step 3 - Verify life requirement of ball nut and end support
• Calculate life of ball screw assembly using L10 = (Cam / Load)3
million revolutions
• Calculate life of end supports using L10 = (Cam / Load per support)3
million revolutions
i.e. : Divide load by 2 if using 2 BK-BK, FK-FK, MK-BK, or WK-WK.
• Select preload if zero lash is required
• Select lead based on required speed
• Linear speed (in/min) = (RPM) x (Lead)
Table 2 - Ball Nut Part Number
Dia. x Lead
Flanged Nut
Part Number
Cylindrical Nut
Part Number
12 x 5
16 x 5
16 x 10
20 x 5
25 x 5
25 x 10
25 x 20
25 x 25
25 x 50
32 x 5
32 x 10
32 x 20
32 x 32
32 X 40
40 x 5
40 x 10
40 x 20
40 x 40
50 x 10
50 x 20
KGF-D-1605-RH-EE
KGF-D-1610-RH-EE
KGF-D-2005-RH-EE
KGF-D-2505-RH-EE
KGF-D-2510-RH-EE
KGF-D-2520-RH-EE
KGF-D-2525-RH-EE
KGF-D-2550-RH-EE
KGF-D-3205-RH-EE
KGF-D-3210-RH-EE
KGF-D-3220-RH-EE
KGF-D-3232-RH-EE
KGF-N-3240-RH-EE
KGF-D-4005-RH-EE
KGF-D-4010-RH-EE
KGF-D-4020-RH-EE
KGF-D-4040-RH-EE
KGF-D-5010-RH-EE
KGF-D-5020-RH-EE
KGM-N-1205-RH-OO
KGM-D-1605-RH-EE
KGM-D-1610-RH-EE
KGM-D-2005-RH-EE
KGM-D-2505-RH-EE
KGM-D-2510-RH-EE
KGM-D-2520-RH-EE
KGM-D-2525-RH-EE
KGM-D-2550-RH-EE
KGM-D-3205-RH-EE
KGM-N-3210-RH-EE
KGM-N-3220-RH-EE
KGM-N-3240-RH-EE
KGM-D-4005-RH-EE
KGM-D-4010-RH-EE
KGM-D-4020-RH-EE
KGM-D-4040-RH-EE
KGM-N-5010-RH-EE
KGM-N-5020-RH-EE
150
Table 3 - Component Dynamic Capacity
Maximum
Screw
Threaded Nut Length (mm)
Part Number
7832778
7832781
7832788
7832792
7832797
7832806
7832810
7832819
-
1,500
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
6,000
Dia. x Lead
12 x 5
16 x 5
16 x 10
20 x 5
25 x 5
25 x 10
25 x 20
25 x 25
25 x 50
32 x 5
32 x 10
32 x 20
32 x 32
32 X 40
40 x 5
40 x 10
40 x 20
40 x 40
50 x 10
50 x 20
Flanged Nut Cylindrical Nut Threaded Nut BK Support FK / MK Support WK Support
Cam (kN)
Cam (kN)
Cam (kN)
Cam (kN)
Cam (kN)
Cam (kN)
4.4
1.9
1.9
9.3
9.3
12.1
2.1
2.1
15.4
15.4
2.1
2.1
10.5
10.5
14.8
2.4
2.4
12.3
12.3
20.4
4.2
10.2
26.6
13.2
13.2
19.9
4.2
10.2
26.6
13.0
13.0
4.2
10.2
26.6
16.7
16.7
4.2
10.2
26.6
15.4
15.4
4.2
10.2
26.6
21.5
21.5
23.3
7.0
12.3
40.5
33.4
33.4
7.0
12.3
40.5
29.7
29.7
7.0
12.3
40.5
18.0
7.0
12.3
40.5
14.9
14.9
7.0
12.3
40.5
23.8
23.8
26.3
9.2
16.1
43.0
38.0
38.0
78.6
9.2
16.1
43.0
33.3
33.3
9.2
16.1
43.0
35.0
35.0
9.2
16.1
43.0
68.7
68.7
97.8
18.0
52.0
60.0
60.0
18.0
52.0
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Step 4 - Verify screw meets critical speed limitation
• Acceptable length / speed combinations are below and left of the selected curve (screw diameter)
Speed vs Length (Metric Series)
Figure 1 - Critical Speed Graph
BF-FF, MK-BF, FK-BK
10000
Ø12mmOD
Ø16mmOD
Speed vs Length (Metric Series)
BF-FF, MK-BF, FK-BK
Ø20mmOD
Ø25mmOD
Ø32mmOD
Ø40mmOD
Ø50mmOD
RPM
1000
100
10
305
940
1575
2210
2845
3480
Speed vs Length (Metric Series)
Travel Length (mm)
WK-BK, WK-FK, MK-BK, FK-BK
4115
4750
10000
Ø12mmOD
Ø16mmOD
Speed vs Length (Metric Series)
BK-BK, FK-FK, MK-BK, WK-WK
Ø20mmOD
Ø25mmOD
Ø32mmOD
Ø40mmOD
Ø50mmOD
RPM
1000
100
10
305
940
1575
2210
2845
3480
4115
4750
Travel Length (mm)
Step 5 - Build Quick-Install Engineered Ball Screw Part Number - Metric Series Example
25x20
S 1500.00 FK - FK S
S
F
Ball Nut Size
Enter Dia. x Lead from above
Preload
S Standard
P Preload
Travel Length
Enter inch travel length xxx.xxx format
(±1.30 mm tolerance standard)
Drive End Support - Opposite End Support
F Flange
C Cylindrical
T Threaded
S Standard Orientation
(Flange or threaded end faces drive journal)
O Opposite Orientation
(Flange or threaded end faces away from drive journal)
S Single Drive Journal
J Journal (Secondary Drive Journal)
Step 6 - Contact Thomson Customer Support (Call 540-633-3549) or thomson@thomsonlinear.com or your
local Thomson Distributor to order
www.thomsonlinear.com
151
How to Install a Ball Screw Assembly
Step 1 - Determine Extended Ball Nut Length
• Deterine the overall length of the ball nut including accessories
• Extended Ball Nut Length = Ball Nut Length + Flange Adder + Wiper Adder
Dia x Lead
Standard Nut
P/N
.500 x .200
.500 x .500
.631 x .200
.631 x 1.000
.750 x .200
.750 x .500
.875 x .200
1.000 x .250
1.000 x .500
1.000 x 1.000
1.150 x .200
1.500 x .250
1.500 x .473
1.500 x .500
1.500 x 1.000
1.500 x 1.875
1.500 x 2.000
2.000 x .500
2.000 x 1.000
8105-448-013
8105-448-014
8106-448-022
7826713
8107-448-018
8107-448-014
5708277
8110-448-055
8110-448-022
8110-448-086
8111-448-006
7833233
5707513
8115-448-016
5708280
5707654
8115-448-056
8120-448-011
8120-448-021
Dia x Lead
Flanged Nut
P/N
12 x 5
16 x 5
16 x 10
20 x 5
25 x 5
25 x 10
25 x 20
25 x 25
25 x 50
32 x 5
32 x 10
32 x 20
32 x 32
32 X 40
40 x 5
40 x 10
40 x 20
40 x 40
50 x 10
50 x 20
KGF-D-1605-RH-EE
KGF-D-1610-RH-EE
KGF-D-2005-RH-EE
KGF-D-2505-RH-EE
KGF-D-2510-RH-EE
KGF-D-2520-RH-EE
KGF-D-2525-RH-EE
KGF-D-2550-RH-EE
KGF-D-3205-RH-EE
KGF-D-3210-RH-EE
KGF-D-3220-RH-EE
KGF-D-3232-RH-EE
KGF-N-3240-RH-EE
KGF-D-4005-RH-EE
KGF-D-4010-RH-EE
KGF-D-4020-RH-EE
KGF-D-4040-RH-EE
KGF-D-5010-RH-EE
KGF-D-5020-RH-EE
Standard
Ball Nut
Length (in)
Preload Nut
P/N
2.750
1.750
1.710
1.710
1.880
2.930
2.704
2.347
3.120
3.000
2.500
2.875
4.312
5.565
3.628
5.000
5.250
6.380
6.380
Preload
Ball Nut
Length (in)
8105-448-008
8106-448-012
7827531
8107-448-025
8107-448-011
5704167
8110-448-016
8111-448-004
7833234
8115-448-006
5700698
5704272
8120-448-006
8120-448-019
Ball Nut
Length (in)
Cylindrical Nut
P/N
1.654
2.165
1.654
1.654
2.165
1.378
1.378
2.283
2.165
2.717
3.150
1.654
1.772
2.244
2.795
3.150
3.346
3.740
3.740
5.950
3.875
3.440
4.080
6.180
4.847
6.640
5.500
6.375
12.100
7.628
10.625
13.920
13.900
Ball Nut
Length (in)
KGM-N-1205-RH-OO
KGM-D-1605-RH-EE
KGM-D-1610-RH-EE
KGM-D-2005-RH-EE
KGM-D-2505-RH-EE
KGM-D-2510-RH-EE
KGM-D-2520-RH-EE
KGM-D-2525-RH-EE
KGM-D-2550-RH-EE
KGM-D-3205-RH-EE
KGM-N-3210-RH-EE
KGM-N-3220-RH-EE
KGM-N-3240-RH-EE
KGM-D-4005-RH-EE
KGM-D-4010-RH-EE
KGM-D-4020-RH-EE
KGM-D-4040-RH-EE
KGM-N-5010-RH-EE
KGM-N-5020-RH-EE
Flange
Adder (in)
Wiper
Adder (in)
0.150
0.150
0.030
0.030
0.030
0.030
0.020
0.030
0.005
0.030
0.015
0.020
0.020
0.030
0.020
0.020
0.020
0.031
0.031
0.287
0.287
0.287
0.306
0.306
0.242
- / 0.344
0.306
0.306
0.287
0.287
0.328
0.328
-
Threaded Nut
P/N
0.945
1.339
1.969
1.339
1.339
1.772
1.378
1.378
2.283
1.772
2.362
2.756
1.772
1.772
2.362
2.756
3.346
3.228
3.228
7832778
7832781
7832788
7832792
7832797
7832806
7832810
7832819
-
Ball Nut
Length (in)
2.264
2.264
2.500
2.402
2.579
2.657
4.154
4.646
-
Step 2 - Determine Screw Length
• Determine overall length of ball screw (OAL)
• OAL = Travel + Extended Ball Nut Length + End Support Configuration (Table Below)
Ball Nut Dia
BK - BK
BK - BF
FK - FK
FK - FF
MK - BK
MK - BF
WK - WK
Optional Journal
BK/FK/MK, BF/FF, WK
0.500 in / 12mm
0.631 in / 16mm
0.750 in / 20mm
0.875 in
1.000 in / 25mm
1.150 in / 32mm
1.500 x .473 & 1.000 in
1.500 x .200, .250, .500 in
1.500 x 1.875 & 2.000 in / 40mm
2.000 in / 50mm
3.425
3.425
3.937
5.079
5.158
6.299
6.299
7.166
7.166
9.291
2.658
2.677
3.091
3.839
3.977
4.822
4.822
5.473
5.473
6.910
3.425
3.425
4.488
5.472
5.866
7.165
7.165
7.166
7.166
-
2.500
2.579
3.307
3.976
4.291
5.137
5.137
5.375
5.375
-
3.425
3.425
4.213
5.512
6.732
6.732
7.166
7.166
-
2.658
2.677
3.367
4.331
5.255
5.255
5.473
5.473
-
7.717
7.717
8.543
8.543
8.819
8.819
9.409
0.591 / 0.591 / 0.591 / 0.591 / 0.787 / 0.787 / 0.905 / 0.905 / 1.339
0.984 / 0.866 / 1.339
1.181 / 1.181 / 1.535
1.181 / 1.181 / 1.535
1.496 / 1.496 / 1.811
1.496 / 1.496 / 1.811
1.969 / 1.969 / 2.165
152
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Lead Screws, Ball Screws and Ball Splines
Step 3 - Determine Mounting Pattern
• Table below indicates mounting interface ("A" = Travel Length + Nut Length)
E
C
B
A
(±.051 inches)
D
S
THRU
SQ
BK - BK
Ball Nut Dia
D
C
BK - BF
B/C/D/E (±.oo5 in)
0.500 in / 12mm
.256 / .512 / .256 / .512
0.631 in / 16mm
.256 / .512 / .256 / .512
0.750
in 20mm
.236 / .591 / .236 / .591 3
4
0.875 in
.315 / .748 / .315 / .748
1.000 in / 25mm
.315 / .748 / .315 / .748
1.150 in / 32mm
.394 / .866 / .394 / .866
1.500 x .473 & 1.000 in
.394 / .866 / .394 / .866
1.500 x .200, .250, .500 in .433 / .906 / .433 / .906
1.500 x 1.875 & 2.000 in
.433 / .906 / .433 / .906
/ 40mm
2.000 in / 50mm
.551 / 1.299 / .551 / 1.299
FK or FF
MK - BK
MK - BF
B/C/D/E (±.oo5 in)
B/C/D/E (±.oo5 in)
.256 / .512 / .394 / .256 / .512 / .394 / .236 / .591 / .394 / .315 / .748 / .453 / .315 / .748 / .512 / .394 / .866 / .591 / .394 / .866 / .591 / .433 / .906 / .630 / -
1.339 / .787 / .256 / .512
1.339 / .787 / .256 / .512
1.536 / 1.102 2/ .236 / .591
2.008 / 1.654 / .315 / .748
-
MK
Motor
Interface
B/C/D/E (±.oo5 in)
ALL
Mounting
Pattern
"SQ" (in)
"THRU"
Hole
Drive Shaft
"S" (in)
1.856
1.856
1.856
DATE DWN
2.740
-
M4 x .7
M4 x .7
M4 x .7
M6 x 1.0
-
.3150 / .3144
.3937 / .3931
.4724 / .4717
.5906 / .5898
.6693 / .6686
.7874 / .7866
.7874 / .7866
.9843 / .9834
1.339 / .787 / .394 / NEMA 23
1.339 / .787 / .394 / NEMA 23
1.536 / 1.102 / .394 / NEMA
23
1
REVISIONS
REV E.N.#
DESCRIPTION
2.008 / 1.654 / .512 / NEMA 34
-
D
.433 / .906 / .630 / -
-
-
-
-
-
.9843 / .9834
.551 / 1.299 / .728 / -
-
-
-
-
-
1.3780 / 1.3771
B
A
(±.051 inches)
WK
D
C
THRU
THRU
BCD
SQ
B
B
S
FK - FK
A
FK - FF
BALL GROOVE DATA
FK / FF
WK - WK
"THRU" Hole
Pattern Clearance & C'bore
KEYMounting
PRODUCT CHARACTERISTICS
DRAWN:
00/00/00
X
"SQ" (in)
for given screw CHECKED:
B/D XXXX
(±.oo5
in)
X
UNLESS OTHERWISE SPECIFIED
.02
F DRAWING SYMBOLS & TOLERANCES ON COMMON CENTERS
PER ASME Y14.5M-1994
MAX SURFACE ROUGHNESS 125
LINEAR DIMS ARE IN INCHES
PER ANSI B46.1-1985
ANGULAR DIMS ARE IN DEGREES
DIM LIMITS & SURFACE TEXTURE
LEAD
C TOLERANCES: .XX = ± .02
X
X
DESIGNATIONS APPLY AFTER
.XXX = ±
.010
BALL SIZE
PLATING/COATING
X
X TOTAL NUMBER ON DRAWING X
ANGULAR = ±
.5 °
THIS DOCUMENT MAY BE CONTROLLED UNDER EITHER THE INTERNATIONAL TRAFFIC
CAGE CODE
SIZE
IN ARMS REGULATIONS ("ITAR") OR THE EXPORT ADMINISTRATION REGUALTIONS
EDGE/CORNER BREAKS .005-.015
("EAR"). A LICENSE OR OTHER U.S. GOVERNMENT AUTHORIZATION MAY BE REQUIRED
FILLET RADII .015
TO EXPORT OR RE-EXPORT THIS DOCUMENT TO A FOREIGN PERSON OR FOREIGN ENTITY.
Ball Nut Dia
B/D (±.oo5 in)
0.500 in / 12mm
0.631 in / 16mm
0.750 in 20mm
4
0.875 in
1.000 in / 25mm
1.150 in / 32mm
1.500 x .473 & 1.000 in
1.500 x .200, .250, .500 in
1.500 x 1.875 & 2.000 in
/ 40mm
2.000 in / 50mm
0.689 / .689
0.689 / .689
0.827 / .827
0.945 / .945
1.220 / 1.220
1.378 / 1.378
1.378 / 1.378
1.142 / 1.142
NO OF
BALL GROOVE
HAND
BALL CIRCLE
DIAMETER
B/D
(±.oo5 in)
X
XXXX CIRCUITS
TURNS PER
CIRCUIT
HELIX
ANGLE
BALL GROOVE
FORM
.669 / .196
.669 / .315
.827 / .315
.945 / .354
1.220 / .354
1.378 / .394
1.378 / .394
1.142 / .354
THOMSON
FIT/FUNCTION
THOMSON
SAFETY/COMPLIANCE
CUSTOMER
(NON-M.R.B.)
THIS DOCUMENT CONTAINS CONFIDENTIAL INFORMATION PROPRIETARY TO
LINEAR MOTION,LLC AND IS FURNISHED UPON THE EXPRESSED CONDITION
THAT THIS INFORMATION WILL NOT BE USED OR DISCLOSED FOR SECOND
SOURCE PROCUREMENT OR USED OR DISCLOSED DIRECTLY OR INDIRECTLY
ANY DIVERSION CONTRARY TO U.S. EXPORT CONTROL LAWS IS STRICTLY PROHIBITED
IN ANY WAY DETRIMENTAL TO THE INTERESTS OF LINEAR MOTION,LLC.
3
APPROVALS
S
1.170 / 0.974
1.225 / 1.170
1.392 / 1.392
1.726 / 1.726
1.949 / 1.949
2.228 / 2.228
2.228 / 2.228
2.645 / 2.645
THIRD ANGLE PROJECTION
2
M4 / M3
M4 / M4
0A335
B
M5 / M5
M6 / M6
M6 / M6
M8/ M8
M8/ M8
M10 / M10
XXXX
- 00/00/00
- XXXX-XX
MATERIAL:
- XXXX
1.260 / 1.260
1.260 / 1.260
1.300 / 1.300
1.300 / 1.300
1.300 / 1.300
APPROVED:
Mounting Pattern
"BCD" (in)
DATE
00/00/00
XXXX
FIRST ASSY:
ALL
TM
Solutions by
"THRU" Hole (in)
Clearance &
C'bore
for given
A
screw
628 N.HAMILTON STREET,SAGINAW,MI 48602
DWG TITLE:
3.465
3.465
4.331
4.331
4.331
XXXX
SHEET:
1 OF 1
SCALE:
DWG NO:
FK_INSTALL
0.400 DRAWN IN PRO-E,WILD FIRE 5.0
1
REV
XX
Drive Shaft
"S" (in)
M8
M8
M10
M10
M10
.3150 / .3144
.3937 / .3931
.4724 / .4717
.5906 / .5898
.6693 / .6686
.7874 / .7866
.7874 / .7866
.9843 / .9834
1.142 / 1.142
1.142 / .354
2.645 / 2.645
M10 / M10
1.300 / 1.300
4.331
M10
.9843 / .9834
-
-
-
-
1.300 / 1.300
4.764
M10
1.3780 / 1.3771
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153
Bearing Supports/End Machining — Ball Screws
BK
Bearing Supports / End Machining - Inch Series Ball Screw
BK Bearing Supports
Standard
P/N
Dia. X Lead
(inch)
7833360
7833361
7833362
7833363
7833364
7833365
0.5
0.631
0.75
0.875
1.000 / 1.171
1.150 / 1.250
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
1.750 / 2.000
7833366
7833367
Bearing Rating
(kgf)
530
610
700
1220
1340
2090
Static Rating Co
(lbs)
1168
1345
1543
2690
2954
4608
(N)
5197
5982
6864
11963
13140
20495
3000
6614
4700
10362
Lock Nut
Type
Block Weight
(Ibs)
RN10
RN12
RN15
RN17
RN20
RN25
0.9
1.0
1.3
2.9
2.8
5.3
9208
RN30
7.5
17984
RN40
15.0
Lock Nut
Type
Block Weight
(kg)
RN10
RN12
RN15
RN20
RN25
RN30
RN40
0.4
0.5
0.6
1.3
2.4
3.4
6.8
Lock Nut
Type
Block Weight
(lbs)
RN10
RN20
RN25
RN40
0.9
2.8
5.3
15.0
(kgf)
195
217
240
413
428
709
Dynamic Rating Cam
(lbs)
430
478
529
910
944
1563
(N)
1912
2128
2353
4050
4197
6952
29418
939
2070
46088
1834
4043
Bearing Supports / End Machining - Metric Series Ball Screw
BK Bearing Supports
Standard
P/N
Dia. X Lead
(mm)
7833391
7833392
7833393
7833394
7833395
7833396
7833397
12
16
20
25
32
40
50
Bearing Rating
Static Rating Co
(kgf)
530
610
700
1340
2090
3000
4700
(lbs)
1168
1345
1543
2954
4608
6614
10362
Dynamic Rating Cam
(N)
5197
5982
6864
13140
20495
29418
46088
(kgf)
195
217
240
428
709
939
1834
(lbs)
430
478
529
944
1563
2070
4043
(N)
1912
2128
2353
4197
6952
9208
17984
Bearing Supports / End Machining - Ball Splines
BK Bearing Supports
Standard
P/N
Spline Size
(inch)
7833360
7833364
7833365
7833367
0.625
1.000
1.500
2.000
154
Bearing Rating
(kgf)
530
1340
2090
4700
Static Rating Co
(lbs)
1168
2954
4608
10362
(N)
5197
13140
20495
46088
(kgf)
195
428
709
1834
Dynamic Rating Cam
(lbs)
(N)
430
1912
944
4197
1563
6952
4043
17984
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
BK
Bearing Supports / End Machining - Inch Series Ball Screw
BK Bearing Supports
Standard
P/N
Bearing Block Dimensions (inch)
d1
(mm)
d2
A
B
C
D
E
F
K
±0.001
L
N
Q
7833360
7833361
7833362
7833363
7833364
7833365
10
12
15
17
20
25
1.063
1.063
1.181
1.496
1.575
1.890
0.906
0.906
1.063
1.339
1.378
1.673
1.181
1.181
1.378
1.693
1.732
2.087
2.362
2.362
2.756
3.386
3.465
4.173
0.236
0.236
0.236
0.315
0.315
0.394
0.512
0.512
0.591
0.748
0.748
0.866
0.984
0.984
1.063
1.378
1.378
1.654
0.866
0.984
1.102
1.535
1.339
1.890
1.535
1.693
1.890
2.520
2.362
3.150
4x .260 Thru, .425 C-Bore x .197 Dp
4x .260 Thru, .425 C-Bore x .059 Dp
4x .260 Thru, .433 C-Bore x .256 Dp
4x .354 Thru, .551 C-Bore x .335 Dp
4x .354 Thru, .551 C-Bore x .335 Dp
4x .433 Thru, .699 C-Bore x .433 Dp
1.339
1.339
1.496
2.008
2.008
2.480
7833366
30
1.969
2.008
2.520
5.039
0.433
0.906
1.772
2.008
3.504
4x .551 Thru, .787 C-Bore x .512 Dp
2.756
7833367
40
2.598
2.559
3.150
6.299
0.551
1.299
2.402
2.362
4.331
4x .709 Thru, 1.024 C-Bore x .689 Dp
3.583
L
N
Q
39.0
43.0
48.0
60.0
80.0
89.0
110.0
4x 6.6 Thru, 10.8 C-Bore x 5.0 Dp
4x 6.6 Thru, 10.8 C-Bore x 1.5 Dp
4x 6.6 Thru, 11.0 C-Bore x 6.5 Dp
4x 9.0 Thru, 14.0 C-Bore x 8.5 Dp
4x 11.0 Thru, 17.0 C-Bore x 11.0 Dp
4x 14.0 Thru, 20.0 C-Bore x 13.0 Dp
4x 18.0 Thru, 26.0 C-Bore x 17.5 Dp
34.0
34.0
38.0
51.0
63.0
70.0
91.0
L
N
Q
1.535
2.362
3.150
4.331
4x .260 Thru, .425 C-Bore x .197 Dp
4x .354 Thru, .551 C-Bore x .335 Dp
4x .433 Thru, .699 C-Bore x .433 Dp
4x .709 Thru, 1.024 C-Bore x .689 Dp
1.339
2.008
2.480
3.583
Bearing Supports / End Machining - Metric Series Ball Screw
BK Bearing Supports
Standard
P/N
7833391
7833392
7833393
7833394
7833395
7833396
7833397
Bearing Block Dimensions (mm)
d1
(mm)
10
12
15
20
25
30
40
d2
A
B
C
D
E
F
27.0
27.0
30.0
40.0
48.0
50.0
66.0
23.0
23.0
27.0
35.0
42.5
51.0
65.0
30.0
30.0
35.0
44.0
53.0
64.0
80.0
60.0
60.0
70.0
88.0
106.0
128.0
160.0
6.0
6.0
6.0
8.0
10.0
11.0
14.0
13.0
13.0
15.0
19.0
22.0
23.0
33.0
25.0
25.0
27.0
35.0
42.0
45.0
61.0
K
±0.02
22.00
25.00
28.00
34.00
48.00
51.00
60.00
Bearing Supports / End Machining - Ball Splines
BK Bearing Supports
Standard
P/N
7833360
7833364
7833365
7833367
Bearing Block Dimensions (inch)
d1
(mm)
10
20
25
40
d2
A
B
C
D
E
F
1.063
1.575
1.890
2.598
0.906
1.378
1.673
2.559
1.181
1.732
2.087
3.150
2.362
3.465
4.173
6.299
0.236
0.315
0.394
0.551
0.512
0.748
0.866
1.299
0.984
1.378
1.654
2.402
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K
±0.001
0.866
1.339
1.890
2.362
155
Bearing Supports/End Machining — Ball Screws
BF
Bearing Supports / End Machining - Inch Series Ball Screw
BF Bearing Supports
Standard
P/N
Dia. X Lead
(inch)
*Snap Ring
(mm)
Block Weight
(Ibs)
7833368
7833369
7833370
7833371
7833372
7833373
0.5
0.631
0.75
0.875
1.000 / 1.171
1.150 / 1.250
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
1.750 / 2.000
8
10
15
17
20
25
0.7
0.8
0.9
1.7
1.7
3.2
30
4.3
40
7.3
7833374
7833375
Bearing Supports / End Machining - Metric Series Ball Screw
BF Bearing Supports
Standard
P/N
Dia. X Lead
(mm)
*Snap Ring
(mm)
Block Weight
(kg)
7833398
7833399
7833400
7833401
7833402
7833403
7833404
12
16
20
25
32
40
50
8
10
15
20
25
30
40
0.3
0.4
0.4
0.8
1.5
2.0
3.3
Bearing Supports / End Machining - Ball Splines
BF Bearing Supports
Standard
P/N
Spline Size
(inch)
*Snap Ring
(mm)
Block Weight
(Ibs)
7833368
7833372
7833373
7833375
0.625
1.000
1.500
2.000
8
20
25
40
0.7
1.7
3.2
7.3
*DIN 471
156
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
BF
Bearing Supports / End Machining - Inch Series Ball Screw
BF Bearing Supports
Standard
P/N
Bearing Block Dimensions (inch)
A
B
C
D
F
7833368
7833369
7833370
7833371
7833372
7833373
d1
(mm)
8
10
15
17
20
25
0.906
0.906
2.244
1.339
1.378
1.673
1.181
1.181
1.378
1.693
1.732
2.087
2.362
2.362
2.756
3.386
3.465
4.173
0.394
0.394
0.394
0.453
0.512
0.591
7833374
30
2.008
2.520
5.039
7833375
40
2.559
3.150
6.299
L
N
0.787
0.787
0.787
0.906
1.024
1.181
K
±0.001
0.866
0.984
1.102
1.535
1.339
1.890
1.535
1.693
1.890
2.520
2.362
3.150
2x .260 Thru, .425 C-Bore x .197 Dp
2x .260 Thru, .425 C-Bore x .059 Dp
2x .260 Thru, .433 C-Bore x .256 Dp
2x .354 Thru, .551 C-Bore x .335 Dp
2x .354 Thru, .551 C-Bore x .335 Dp
2x .433 Thru, .699 C-Bore x .433 Dp
0.630
1.260
2.008
3.504
2x .551 Thru, .787 C-Bore x .512 Dp
0.728
1.457
2.362
4.331
2x .709 Thru, 1.024 C-Bore x .689 Dp
Bearing Supports / End Machining - Metric Series Ball Screw
BF Bearing Supports
Standard
P/N
7833398
7833399
7833400
7833401
7833402
7833403
7833404
Bearing Block Dimensions (mm)
d1
(mm)
8
10
15
20
25
30
40
A
B
C
D
F
23.0
23.0
57.0
35.0
42.5
51.0
65.0
30.0
30.0
35.0
44.0
53.0
64.0
80.0
60.0
60.0
70.0
88.0
106.0
128.0
160.0
10.0
10.0
10.0
13.0
15.0
16.0
18.5
20.0
20.0
20.0
26.0
30.0
32.0
37.0
K
±0.02
22.00
25.00
28.00
34.00
48.00
51.00
60.00
L
N
39.0
43.0
48.0
60.0
80.0
89.0
110.0
4x 6.6 Thru, 10.8 C-Bore x 5.0 Dp
4x 6.6 Thru, 10.8 C-Bore x 1.5 Dp
4x 6.6 Thru, 11.0 C-Bore x 6.5 Dp
4x 9.0 Thru, 14.0 C-Bore x 8.5 Dp
4x 11.0 Thru, 17.0 C-Bore x 11.0 Dp
4x 14.0 Thru, 20.0 C-Bore x 13.0 Dp
4x 18.0 Thru, 26.0 C-Bore x 17.5 Dp
Bearing Supports / End Machining - Ball Splines
BF Bearing Supports
Standard
P/N
7833368
7833372
7833373
7833375
Bearing Block Dimensions (inch)
d1
(mm)
8
20
25
40
A
B
C
D
F
0.906
1.378
1.673
2.559
1.181
1.732
2.087
3.150
2.362
3.465
4.173
6.299
0.394
0.512
0.591
0.728
0.787
1.024
1.181
1.457
www.thomsonlinear.com
K
±0.001
0.866
1.339
1.890
2.362
L
N
1.535
2.362
3.150
4.331
4x .260 Thru, .425 C-Bore x .197 Dp
4x .354 Thru, .551 C-Bore x .335 Dp
4x .433 Thru, .699 C-Bore x .433 Dp
4x .709 Thru, 1.024 C-Bore x .689 Dp
157
Bearing Supports/End Machining — Ball Screws
BK
Bearing Supports / End Machining - Inch Series Ball Screw
BK Standard End Machining
Type BK / BK1 (inch)
Dia x Lead
(inch)
Standard
P/N
A
B
C
D
E
THD
Bearing Trade
No.
0.500
0.631
0.750
0.875
1.000 / 1.171
1.150 / 1.250
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
1.750 / 2.000
7833360
7833361
7833362
7833363
7833364
7833365
2.008
2.008
2.362
2.992
3.071
3.740
1.417
1.417
1.575
2.087
2.087
2.559
.3150/.3144
.3937/.3931
.4724/.4717
.5906/.5898
.6693/.6686
.7874/.7866
.3935/.3932
.4722/.4720
.5904/.5900
.6691/.6687
.7872/.7869
.9841/.9837
0.787
0.866
1.102
1.417
1.496
1.850
M10x1
M12x1
M15x1
M17x1
M20x1
M25x1.5
7000
7001
7002
7203
7004
7205
7833366
4.331
2.835
.9843/.9834
1.1809/1.1805
1.850
M30x1.5
7206
7833367
5.630
3.661
1.3780/1.3771
1.5746/1.5742
2.283
M40x1.5
7208
Bearing Supports / End Machining - Metric Series Ball Screw
BK Standard End Machining
Type BK / BK1 (mm)
Dia x Lead
(mm)
Standard
P/N
A
B
C
D
E
THD
Bearing Trade
No.
12
16
20
25
32
40
50
7833391
7833392
7833393
7833394
7833395
7833396
7833397
51.0
51.0
60.0
78.0
95.0
110.0
143.0
36.0
36.0
40.0
53.0
65.0
72.0
93.0
8.0
10.0
12.0
17.0
20.0
25.0
35.0
9.995/9.988
11.995/11.988
14.995/14.986
19.995/19.986
24.995/24.985
29.995/29.985
39.995/39.985
20.0
22.0
28.0
38.0
47.0
47.0
58.0
M10x1
M12x1
M15x1
M20x1
M25x1.5
M30x1.5
M40x1.5
7000
7001
7002
7004
7205
7206
7208
Bearing Supports / End Machining - Ball Splines
BK Standard End Machining
158
Type BK / BK1 (inch)
Spline Size
(inch)
Standard
P/N
A
B
C
D
E
THD
Bearing Trade
No.
0.625
1.000
1.500
2.000
7833360
7833364
7833365
7833367
2.008
3.071
3.740
5.630
1.417
2.087
2.559
3.661
.3150/.3144
.6693/.6686
.7874/.7866
1.3780/1.3771
.3935/.3932
.7872/.7869
.9841/.9837
1.5746/1.5742
0.787
1.496
1.850
2.283
M10x1
M20x1
M25x1.5
M40x1.5
7000
7004
7205
7208
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
BF
Bearing Supports / End Machining - Inch Series Ball Screw
BF Standard End Machining
Type BF / BF1 (inch)
Standard
P/N
A
B
7833368
7833369
7833370
7833371
7833372
7833373
0.984
1.024
1.299
1.535
1.614
1.969
7833374
7833375
0.394
0.433
0.512
0.630
0.630
0.787
C
h7
0.236
0.315
0.472
0.591
0.669
0.787
2.323
0.827
2.974
0.906
*Snap Ring
(mm)
Bearing Trade
No.
8
10
15
17
20
25
608
6000
6002
6203
6004
6205
1.126
30
6206
0.785
1.496
40
6208
G
+.200/-.000
7.90
9.15
10.15
13.35
16.35
17.75
19.95
H
+.000/-.200
7.60
9.60
14.30
19.00
23.90
28.60
38.00
*Snap Ring
(mm)
Bearing Trade
No.
8
10
15
20
25
30
40
608
6000
6002
6004
6205
6206
6208
G
+.008/-.000
0.311
0.526
0.644
0.785
H
+.000/-.008
0.299
0.748
0.941
1.496
*Snap Ring
(mm)
Bearing Trade
No.
8
20
25
40
608
6004
6205
6208
.3148/.3145
.3935/.3932
.5904/.5900
.6691/.6687
.7872/.7869
.9841/.9837
F
+0.006/-.000
0.035
0.045
0.045
0.045
0.053
0.053
G
+.008/-.000
0.311
0.360
0.400
0.518
0.526
0.644
H
+.000/-.008
0.299
0.378
0.563
0.638
0.748
0.941
0.984
1.1809/.1805
0.069
0.699
1.378
1.5746/1.5742
0.077
D
Bearing Supports / End Machining - Metric Series Ball Screw
BF Standard End Machining
Type BF / BF1 (mm)
Standard
P/N
A
B
7833398
7833399
7833400
7833401
7833402
7833403
7833404
25.0
26.0
33.0
41.0
50.0
59.0
73.0
10.0
11.0
13.0
16.0
20.0
21.0
23.0
C
h7
6.0
8.0
12.0
17.0
20.0
25.0
35.0
D
7.995/7.988
9.995/9.988
14.995/14.986
19.995/19.986
24.995/24.986
29.995/29.985
39.995/39.985
F
+0.140/-.000
0.90
1.15
1.15
1.35
1.35
1.75
1.95
Bearing Supports / End Machining - Ball Splines
BF Standard End Machining
Type BF / BF1 (inch)
Standard
P/N
A
B
7833368
7833372
7833373
7833375
0.984
1.614
1.969
2.974
0.394
0.630
0.787
0.906
C
h7
0.236
0.669
0.787
1.378
D
0.3148
0.7872
0.9841
1.5746
F
+0.006/-.000
0.035
0.053
0.053
0.077
*DIN 471
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159
Bearing Supports/End Machining — Ball Screws
FK
Bearing Supports / End Machining - Inch Series Ball Screw
FK Bearing Supports
Standard
P/N
Dia. X Lead
(inch)
7833377
7833378
7833379
7833380
7833381
7833382
0.5
0.631
0.75
0.875
1.000 / 1.171
1.150 / 1.250
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
7833383
Bearing Rating
(kgf)
530
610
700
1220
1690
2090
Static Rating Co
(lbs)
1168
1345
1543
2690
3726
4608
(N)
5197
5982
6864
11963
16572
20495
3000
6614
29418
(kgf)
195
217
240
413
587
709
Dynamic Rating Cam
(lbs)
430
478
529
910
1294
1563
(N)
1912
2128
2353
4050
5756
6952
939
2070
9208
Lock Nut
Type
Block Weight
(Ibs)
RN10
RN12
RN15
RN17
RN20
RN25
0.6
0.6
0.9
1.9
2.5
3.5
RN30
5.2
Lock Nut
Type
Block Weight
(kg)
RN10
RN12
RN15
RN20
RN25
RN30
0.3
0.3
0.4
1.2
1.6
2.4
Lock Nut
Type
Block Weight
(Ibs)
RN10
RN20
RN25
0.6
2.5
3.5
Bearing Supports / End Machining - Metric Series Ball Screw
FK Bearing Supports
Standard
P/N
Dia. X Lead
(mm)
7833405
7833406
7833407
7833408
7833409
7833410
12
16
20
25
32
40
Bearing Rating
Static Rating Co
(kgf)
530
610
700
1690
2090
3000
(lbs)
1168
1345
1543
3726
4608
6614
Dynamic Rating Cam
(N)
5197
5982
6864
16572
20495
29418
(kgf)
195
217
240
587
709
939
(lbs)
430
478
529
1294
1563
2070
(N)
1912
2128
2353
5756
6952
9208
Bearing Supports / End Machining - Ball Splines
FK Bearing Supports
Standard
P/N
Spline Size
(inch)
7833377
7833381
7833382
0.625
1.000
1.500
160
Bearing Rating
(kgf)
530
1690
2090
Static Rating Co
(lbs)
1168
3726
4608
(N)
5197
16572
20495
(kgf)
195
587
709
Dynamic Rating Cam
(lbs)
430
1294
1563
(N)
1912
5756
6952
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
FK
Bearing Supports / End Machining - Inch Series Ball Screw
FK Bearing Supports
Standard
P/N
Bearing Block Dimensions (inch)
d1
(mm)
d2
A
B
C
D
E
F
N
Q
7833377
7833378
7833379
7833380
7833381
7833382
10
12
15
17
20
25
1.063
1.063
1.496
1.732
1.969
2.362
1.654
1.732
1.969
2.441
2.756
3.150
2.047
2.126
2.480
3.031
3.346
3.858
1.654
1.732
2.047
2.402
2.677
3.110
1.3382/1.3376
1.4170/1.4163
1.5744/1.5738
1.9681/1.9675
2.2437/2.2430
2.4799/2.4792
0.394
0.394
0.591
0.866
0.866
1.063
1.063
1.063
1.260
1.772
2.047
2.244
4x .177 Thru, .315 C-Bore x .157 Dp
4x .177 Thru, .315 C-Bore x .157 Dp
4x .217 Thru, .374 C-Bore x .236 Dp
4x .260 Thru, .433 C-Bore x .394 Dp
4x .260 Thru, .433 C-Bore x .394 Dp
4x .354 Thru, .591 C-Bore x .512 Dp
1.299
1.299
1.575
2.244
2.598
2.913
7833383
30
1.969
3.740
4.606
3.661
2.9524/2.9516
1.181
2.441
4x .433 Thru, .689 C-Bore x .591 Dp
3.150
Bearing Supports / End Machining - Metric Series Ball Screw
FK Bearing Supports
Standard
P/N
7833405
7833406
7833407
7833408
7833409
7833410
Bearing Block Dimensions (mm)
d1
(mm)
10
12
15
20
25
30
d2
A
B
C
27.0
27.0
38.0
50.0
60.0
50.0
42.0
44.0
50.0
70.0
80.0
95.0
52.0
54.0
63.0
85.0
98.0
117.0
42.0
44.0
52.0
68.0
79.0
93.0
D
g6
34.0
36.0
40.0
57.0
63.0
75.0
E
F
N
Q
10.0
10.0
15.0
22.0
27.0
30.0
27.0
27.0
32.0
52.0
57.0
62.0
4x 4.5 Thru, 8.0 C-Bore x 4.0 Dp
4x 4.5 Thru, 8.0 C-Bore x 4.0 Dp
4x 5.5 Thru, 9.5 C-Bore x 6.0 Dp
4x 6.6 Thru, 11.0 C-Bore x 10.0 Dp
4x 9.0 Thru, 15.0 C-Bore x 13.0 Dp
4x 11.0 Thru, 17.5 C-Bore x 15.0 Dp
33.0
33.0
40.0
66.0
74.0
80.0
Bearing Supports / End Machining - Ball Splines
FK Bearing Supports
Standard
P/N
7833377
7833381
7833382
Bearing Block Dimensions (inch)
d1
(mm)
10
20
25
d2
A
B
C
D
E
F
N
Q
1.063
1.969
2.362
1.654
2.756
3.150
2.047
3.346
3.858
1.654
2.677
3.110
1.3382/1.3376
2.2437/2.2430
2.4799/2.4792
0.394
0.866
1.063
1.063
2.047
2.244
4x .177 Thru, .315 C-Bore x .157 Dp
4x .260 Thru, .433 C-Bore x .394 Dp
4x .354 Thru, .591 C-Bore x .512 Dp
1.339
2.008
2.480
www.thomsonlinear.com
161
Bearing Supports/End Machining — Ball Screws
FF
Bearing Supports / End Machining - Inch Series Ball Screw
FF Bearing Supports
Standard
P/N
Dia. X Lead
(inch)
*Snap Ring
(mm)
Block Weight
(Ibs)
7833384
7833385
7833386
7833387
7833388
7833389
0.5
0.631
0.75
0.875
1.000 / 1.171
1.150 / 1.250
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
8
10
15
17
20
25
0.2
0.3
0.5
0.8
1.0
1.5
30
2.3
7833390
Bearing Supports / End Machining - Metric Series Ball Screw
FF Bearing Supports
Standard
P/N
Dia. X Lead
(mm)
*Snap Ring
(mm)
Block Weight
(kg)
7833411
7833412
7833413
7833414
7833415
7833416
12
16
20
25
32
40
8
10
15
20
25
30
0.1
0.2
0.2
0.5
0.7
1.1
Bearing Supports / End Machining - Ball Splines
FF Bearing Supports
Standard
P/N
Spline Size
(inch)
*Snap Ring
(mm)
Block Weight
(Ibs)
7833384
7833388
7833389
0.625
1.000
1.500
8
20
25
0.2
1.0
1.5
*DIN 471
162
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
FF
Bearing Supports / End Machining - Inch Series Ball Screw
FF Bearing Supports
Standard
P/N
Bearing Block Dimensions (inch)
A
B
C
D
E
F
N
7833384
7833385
7833386
7833387
7833388
7833389
d1
(mm)
8
10
15
17
20
25
1.378
1.654
1.969
2.441
2.756
3.150
1.693
2.047
2.480
3.031
3.346
3.858
1.378
1.654
2.047
2.402
2.677
3.110
1.1021/1.1016
1.3382/1.3376
1.5744/1.5738
1.9681/1.9675
2.2437/2.2430
2.4799/2.4792
0.276
0.276
0.354
0.433
0.433
0.551
0.472
0.591
0.669
0.787
0.787
0.945
4x .134 Thru, .256 C-Bore x .157 Dp
4x .177 Thru, .315 C-Bore x .157 Dp
4x .217 Thru, .374 C-Bore x .217 Dp
4x .260 Thru, .433 C-Bore x .256 Dp
4x .260 Thru, .433 C-Bore x .256 Dp
4x .354 Thru, .551 C-Bore x .335 Dp
7833390
30
3.740
4.606
3.661
2.9524/2.9516
0.709
1.063
4x .433 Thru, .669 C-Bore x .433 Dp
Bearing Supports / End Machining - Metric Series Ball Screw
FF Bearing Supports
Standard
P/N
7833411
7833412
7833413
7833414
7833415
7833416
Bearing Block Dimensions (mm)
d1
(mm)
8
10
15
20
25
30
A
B
C
D
E
F
N
35.0
42.0
50.0
70.0
80.0
95.0
43.0
52.0
63.0
85.0
98.0
117.0
35.0
42.0
52.0
68.0
79.0
93.0
28.0
34.0
40.0
57.0
63.0
75.0
7.0
7.0
9.0
11.0
14.0
18.0
12.0
15.0
17.0
20.0
24.0
27.0
4x 3.4 Thru, 6.5 C-Bore x 4.0 Dp
4x 4.5 dia Thru, 8.0 C-Bore x 4.0 Dp
4x 5.5 Thru, 9.5 C-Bore x 5.5 Dp
4x 6.6 Thru, 11.0 C-Bore x 6.5 Dp
4x 9.0 Thru, 14.0 C-Bore x 8.5 Dp
4x 11.0 Thru, 17.0 C-Bore x 11.0 Dp
Bearing Supports / End Machining - Ball Splines
FF Bearing Supports
Standard
P/N
7833384
7833388
7833389
Bearing Block Dimensions (inch)
d1
(mm)
8
20
25
www.thomsonlinear.com
A
B
C
D
E
F
N
1.378
2.756
3.150
1.693
3.346
3.858
1.378
2.677
3.110
1.1021/1.1016
2.2437/2.2430
2.4799/2.4792
0.276
0.433
0.551
0.472
0.787
0.945
4x .134 Thru, .256 C-Bore x .157 Dp
4x .260 Thru, .433 C-Bore x .256 Dp
4x .354 Thru, .551 C-Bore x .335 Dp
163
Bearing Supports/End Machining — Ball Screws
FK
Bearing Supports / End Machining - Inch Series Ball Screw
FK Standard End Machining
Type FK / FK1 (inch)
Dia x Lead
(inch)
Standard
P/N
A
B
C
D
E
THD
Bearing Trade
No.
0.500
0.631
0.750
0.875
1.000 / 1.171
1.150 / 1.250
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
7833377
7833378
7833379
7833380
7833381
7833382
2.008
2.008
2.638
3.189
3.425
4.173
1.417
1.417
1.850
2.283
2.441
2.992
.3150/.3144
.3937/.3931
.4724/.4717
.5906/.5898
.6693/.6686
.7874/.7866
.3935/.3932
.4722/.4720
.5904/.5900
.6691/.6687
.7872/.7869
.9841/.9837
0.984
0.984
1.339
1.693
1.772
2.205
M10x1
M12x1
M15x1
M17x1
M20x1
M25x1.5
7000
7001
7002
7203
7204
7205
7833383
4.331
2.835
.9843/.9834
1.1809/1.1805
1.850
M30x1.5
7206
Bearing Supports / End Machining - Metric Series Ball Screw
FK Standard End Machining
Type FK / FK1 (mm)
Dia x Lead
(mm)
Standard
P/N
A
B
C
D
E
THD
Bearing Trade
No.
12
16
20
25
32
40
7833405
7833406
7833407
7833408
7833409
7833410
51.0
51.0
67.0
87.0
106.0
110.0
36.0
36.0
47.0
62.0
76.0
72.0
8.0
10.0
12.0
17.0
20.0
25.0
9.995/9.988
11.995/11.988
14.995/14.986
19.995/19.986
24.995/24.985
29.995/29.985
25.0
25.0
34.0
45.0
56.0
47.0
M10x1
M12x1
M15x1
M20x1
M25x1.5
M30x1.5
7000
7001
7002
7204
7205
7206
Bearing Supports / End Machining - Ball Splines
FK Standard End Machining
164
Type FK / FK1 (inch)
Spline Size
(inch)
Standard
P/N
A
B
C
D
E
THD
Bearing Trade
No.
0.625
1.000
1.500
7833377
7833381
7833382
2.008
3.425
4.173
1.417
2.441
2.992
.3150/.3144
.6693/.6686
.7874/.7866
.3935/.3932
.7872/.7869
.9841/.9837
0.984
1.772
2.205
M10x1
M20x1
M25x1.5
7000
7204
7205
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
FF
Bearing Supports / End Machining - Inch Series Ball Screw
FF Standard End Machining
Type FF / FF1 (inch)
Standard
P/N
A
B
7833384
7833385
7833386
7833387
7833388
7833389
0.984
1.024
1.299
1.535
1.614
1.969
7833390
2.323
0.394
0.433
0.512
0.630
0.748
0.787
C
h7
0.236
0.315
0.472
0.591
0.669
0.787
0.827
0.984
.3148/.3145
.3935/.3932
.5904/.5900
.6691/.6687
.7872/.7869
.9841/.9837
F
+0.006/-.000
0.035
0.045
0.045
0.045
0.053
0.053
G
+.008/-.000
0.311
0.360
0.400
0.518
0.604
0.644
H
+.000/-.008
0.299
0.378
0.563
0.638
0.748
0.941
1.1809/1.1805
0.069
0.699
1.126
G
+.200/-.000
7.90
9.15
10.15
15.35
16.35
17.75
H
+.000/-.200
7.60
9.60
14.30
19.00
23.90
28.60
G
+.008/-.000
0.311
0.604
0.644
H
+.000/-.008
0.299
0.748
0.941
D
*Snap Ring
(mm)
Bearing Trade
No.
8
10
15
17
20
25
608
6000
6002
6203
6204
6205
30
6206
*Snap Ring
(mm)
Bearing Trade
No.
8
10
15
20
25
30
608
6000
6002
6204
6205
6206
*Snap Ring
(mm)
Bearing Trade
No.
8
20
25
608
6204
6205
Bearing Supports / End Machining - Metric Series Ball Screw
FF Standard End Machining
Type FF / FF1 (mm)
Standard
P/N
A
B
7833411
7833412
7833413
7833414
7833415
7833416
25.0
26.0
33.0
41.0
50.0
59.0
10.0
11.0
13.0
19.0
20.0
21.0
C
h7
6.0
8.0
12.0
17.0
20.0
25.0
D
7.995/7.988
9.995/9.988
14.995/14.986
19.995/19.986
24.995/24.986
29.995/29.985
F
+0.140/-.000
0.90
1.15
1.15
1.35
1.35
1.75
Bearing Supports / End Machining - Ball Splines
FF Standard End Machining
Type FF / FF1 (inch)
Standard
P/N
A
B
7833384
7833388
7833389
0.984
1.614
1.969
0.394
0.748
0.787
C
h7
0.236
0.669
0.787
D
.3148/.3145
.7872/.7869
.9841/.9837
F
+0.006/-.000
0.035
0.053
0.053
*DIN 471
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165
Motor Supports
MK
LOCK
LOCK NUT
NUT
MOTOR ADAPTER
MOTOR
FK
FKEND
ENDSUPPORT
SUPPORT
Motor Supports - Inch Series Ball Screw
MK Motor Supports
Bearing Rating
(N)
Dynamic Rating Cam
(kgf)
(lbs)
(N)
Lock
Nut
Type
1168
5197
195
430
1912
RN10
610
1345
5982
217
478
2128
RN12
0.75
700
1543
6864
240
529
2353
RN15
1.000 / 1.171
1690
3726
16572
587
1294
5756
RN20
(N)
Lock
Nut
Type
Standard
P/N
Dia. X Lead
(inch)
7833685
(kgf)
Static Rating Co
(lbs)
0.5
530
7833686
0.631
7833687
7833690
Motor Supports - Metric Series Ball Screw
MK Motor Supports
166
Standard
P/N
Dia. X Lead
(mm)
7833700
Bearing Rating
(kgf)
Static Rating Co
(lbs)
(N)
Dynamic Rating Cam
(kgf)
(lbs)
12
530
1168
5197
195
430
1912
RN10
7833701
16
610
1345
5982
217
478
2128
RN12
7833702
20
700
1543
6864
240
529
2353
RN15
7833703
25
1690
3726
16572
587
1294
5756
RN20
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Lead Screws, Ball Screws and Ball Splines
Motor Supports
T
MK
S
S
E1
L
E
P
B
d2
D
H
J
F
N
W
Motor Supports - Inch Series Ball Screw
MK Motor Supports
Standard
P/N
Bearing Block Dimensions (inch)
d1
(mm)
d2
W
N
D
L
H
±0.001
B
P
T
E
E1
F
J
Support
Unit
Frame
Size
S
7833685
10 1.500 2.626 M4 1.339 2.913
0.866
2.559 1.969 1.280 0.945 0.787 0.157 2.559 7833377
NEMA 23 4x .260 Thru, .441 C-Bore x .236 Dp
7833686
12 1.500 2.626 M4 1.417 2.913
0.984
2.559 1.969 1.280 0.945 0.787 0.157 2.559 7833378
NEMA 23 4x .260 Thru, .441 C-Bore x .236 Dp
7833687
15 1.500 2.626 M4 1.575 3.228
1.102
2.756 2.165 1.378 0.945 1.102 0.157 2.874 7833379
NEMA 23 4x .260 Thru, .441 C-Bore x .236 Dp
7833690
20 2.874 3.874 M6 2.244 4.449
1.339
3.465 2.756 1.732 1.142 1.654 0.236 4.016 7833691
NEMA 34
4x .335 Thru, .571 C-Bore x .315 Dp
Motor Supports - Metric Series Ball Screw
MK Motor Supports
Standard
P/N
Bearing Block Dimensions (mm)
d1
(mm)
d2
W1
N
D
L
H
±0.02
B
P
T
E
E1
F
J
Support
Unit
Frame
Size
S
7833700
10
38.1
66.7
M4
34
74
22.00
65
50
32.5
24
20
4
65
7833405
NEMA 23
4x 6.6 Thru, 11.2 C-Bore x 6.0 Dp
7833701
12
38.1
66.7
M4
36
74
25.00
65
50
32.5
24
20
4
65
7833406
NEMA 23
4x 6.6 Thru, 11.2 C-Bore x 6.0 Dp
7833702
15
38.1
66.7
M4
40
82
28.00
70
55
35.0
24
28
4
73
7833407
NEMA 23
4x 6.6 Thru, 11.2 C-Bore x 6.0 Dp
7833703
20
73.0
98.4
M6
57
113
34.00
88
70
44.0
29
42
6
102
7833707
NEMA 34
4x 8.5 Thru, 14.5 C-Bore x 8.0 Dp
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167
Bearing Supports/End Machining — Ball Screws
SPACER
SPACER
SEAL
SEAL
WK
ANGULAR CONTACT BEARINGS
ANGULAR CONTACT BEARINGS
SPACER
SPACER
SEAL
SEAL
LOCK NUT
LOCK NUT
Bearing Supports / End Machining - Inch Series Ball Screw
WK Bearing Supports
Standard
P/N
Dia. X Lead
(inch)
7833595
7833596
7833597
0.875
1.000 / 1.171
1.150 / 1.250
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
1.750 / 2.000
7833599
7833602
Bearing Rating
(kgf)
2710
2710
4150
Static Rating Co
(lbs)
5974
5974
9149
(N)
26574
26574
40695
(kgf)
2240
2240
2910
4400
9700
43147
2980
6570
5300
11684
51972
3250
7165
Lock Nut
Type
Block Weight
(Ibs)
M17x1
M20x1
M25x1.5
4.2
4.2
6.8
29222
M30x1.5
6.6
31870
M40x1.5
7.9
Lock Nut
Type
Block Weight
(kg)
M20x1
M25x1.5
M30x1.5
M40x1.5
1.9
3.1
3.0
3.6
Lock Nut
Type
Block Weight
(lbs)
M20x1
M25x1.5
M40x1.5
4.2
6.8
7.9
Dynamic Rating Cam
(lbs)
(N)
4938
21966
4938
21966
6415
28536
Bearing Supports / End Machining - Metric Series Ball Screw
WK Bearing Supports
Standard
P/N
Dia. X Lead
(mm)
7833614
7833615
7833617
7833621
25
32
40
50
Bearing Rating
Static Rating Co
(kgf)
2710
4150
4400
5300
(lbs)
5974
9149
9700
11684
Dynamic Rating Cam
(N)
26574
40695
43147
51972
(kgf)
2240
2910
2980
3250
(lbs)
4938
6415
6570
7165
(N)
21966
28536
29222
31870
Bearing Supports / End Machining - Ball Splines
WK Bearing Supports
Standard
P/N
Spline Size
(inch)
7833596
7833597
7833602
1.000
1.500
2.000
168
Bearing Rating
(kgf)
2710
4150
5300
Static Rating Co
(lbs)
5974
9149
11684
(N)
26574
40695
51972
(kgf)
2240
2910
3250
Dynamic Rating Cam
(lbs)
(N)
4938
21966
6415
28536
7165
31870
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
WK
L
W
Q
D1
A
90°
N
22.5°
6xN
D
D2
A
30°
L2
V
d1
L1
A
90°
30°
8xN
Bearing Supports / End Machining - Inch Series Ball Screw
WK Bearing Supports
Bearing Block Dimensions (inch)
Standard
d1
D
P/N
D1
D2
L
L1
L2
A
W
N
(mm) g6
7833595 17 2.756 4.173 2.835 2.362 1.260 0.591 3.150 3.465 6x .354 Thru, .551 C-Bore x .335 Dp
7833596 20 2.756 4.173 2.835 2.362 1.260 0.591 3.150 3.465 6x .433 Thru, .669 C-Bore x .433 Dp
7833597 25 3.346 5.118 3.543 2.598 1.299 0.709 3.937 4.331 6x .433 Thru, .669 C-Bore x .433 Dp
V
Q
2.283
2.283
2.756
4x M5 THD, x .394 Dp
4x M5 THD, x .472 Dp
4x M6 THD, x .472 Dp
7833599
30
3.346 5.118 3.543 2.598 1.299 0.709 3.937 4.331 6x .433 Thru, .669 C-Bore x .433 Dp
2.756
4x M6 THD, x .472 Dp
7833602
40
3.740 5.591 4.016 2.598 1.299 0.709 4.173 4.764 8x .433 Thru, .669 C-Bore x .433 Dp
3.150
4x M6 THD, x .472 Dp
Bearing Supports / End Machining - Metric Series Ball Screw
WK Bearing Supports
Standard
d1
P/N
(mm)
7833614 20
7833615 25
7833617 30
7833621 40
Bearing Block Dimensions (mm)
D
g6
70.0
85.0
85.0
95.0
D1
D2
106.0 72.0
130.0 90.0
130.0 90.0
142.0 102.0
L
L1
L2
A
W
N
V
Q
60.0
66.0
66.0
66.0
32.0
33.0
33.0
33.0
15.0
18.0
18.0
18.0
80.0
100.0
100.0
106.0
88.00
110.00
110.00
121.00
6x 9.0 Thru, 14.0 C-Bore x 8.5 Dp
6x 11.0 Thru, 17.0 C-Bore x 11 Dp
6x 11.0 Thru, 17.0 C-Bore x 11 Dp
8x 11.0 Thru, 17.0 C-Bore x 11 Dp
58
70
70
80
4x M5 THD, x 10 Dp
4x M6 THD, x 12 Dp
4x M6 THD, x 12 Dp
4x M6 THD, x 12 Dp
Bearing Supports / End Machining - Ball Splines
WK Bearing Supports
Bearing Block Dimensions (inch)
Standard
d1
D
P/N
D1
D2
L
L1
L2
A
W
N
V
Q
(mm) g6
7833596 20 2.756 4.173 2.835 2.362 1.2598 0.591 3.150 3.465 6x .433 Thru, .669 C-Bore x .433 Dp 2.283464567 4x M5 THD, x .472 Dp
7833597 25 3.346 5.118 3.543 2.598 1.2992 0.709 3.937 4.331 6x .433 Thru, .669 C-Bore x .433 Dp 2.755905512 4x M6 THD, x .472 Dp
7833602 40 3.740 5.591 4.016 2.598 1.2992 0.709 4.173 4.764 8x .433 Thru, .669 C-Bore x .433 Dp 3.149606299 4x M6 THD, x .472 Dp
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169
Bearing Supports/End Machining — Ball Screws
MK
M
M
M
M
Bearing Supports / End Machining - Inch Series Ball Screw
MK Standard End Machining
Type MK (inch)
Dia x Lead
(inch)
Standard
P/N
A
B
C
D
E
THD
Bearing Trade
No.
0.500
0.631
0.750
1.000 / 1.171
7833685
7833686
7833687
7833690
2.008
2.008
2.638
3.425
1.417
1.417
1.850
2.441
.3150/.3144
.3937/.3931
.4724/.4717
.6693/.6686
.3935/.3932
.4722/.4720
.5904/.5900
.7872/.7869
0.984
0.984
1.339
1.772
M10x1
M12x1
M15x1
M20x1
7000
7001
7002
7204
D
E
THD
Bearing Trade
No.
9.995/9.988
11.995/11.988
14.995/14.986
19.995/19.986
25.0
25.0
34.0
45.0
M10x1
M12x1
M15x1
M20x1
7000
7001
7002
7204
Bearing Supports / End Machining - Metric Series Ball Screw
MK Standard End Machining
170
Type MK (mm)
Dia x Lead
(mm)
Standard
P/N
A
B
12
16
20
25
7833700
7833701
7833702
7833703
51.0
51.0
67.0
87.0
36.0
36.0
47.0
62.0
C
h7
8.0
10.0
12.0
17.0
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
WK
TYPE WK1, REQUIRED FOR WK SUPPORT
TYPE WK, REQUIRED FOR WK SUPPORT
A
B
B
F
E
E
C
D
D
G
THD
THD
Bearing Supports / End Machining - Inch Series Ball Screw
WK Standard End Machining
Type WK / WK1 (inch)
Dia x Lead
(inch)
Standard
P/N
A
B
C
D
E
F
G
THD
0.875
1.000 / 1.171
1.150 / 1.250
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
1.750 / 2.000
7833595
7833596
7833597
4.528
4.528
5.039
3.189
3.189
3.504
.5906/.5898
.6693/.6686
.7874/.7866
.6691/.6687
.7872/.7869
.9841/.9837
2.283
2.283
2.480
0.197
0.197
0.197
1.181
1.181
1.260
M17x1
M20x1
M25x1.5
7833599
5.315
3.504
.9843/.9834
1.1809/1.18105
2.480
0.315
1.339
M30x1.5
7833602
5.787
3.622
1.3780/1.3771
1.5746/1.5742
2.441
0.315
1.850
M40x1.5
Bearing Supports / End Machining - Metric Series Ball Screw
WK Standard End Machining
Type WK / WK1 (mm)
Dia x Lead
(mm)
Standard
P/N
A
B
C
D
E
F
G
THD
25
32
40
50
7833614
7833615
7833617
7833621
115.0
128.0
135.0
147.0
81.0
89.0
89.0
92.0
17.0
20.0
25.0
35.0
19.995/19.986
24.995/24.985
29.995/29.985
39.995/39.985
58.0
63.0
63.0
62.0
5.0
5.0
8.0
8.0
30.0
32.0
34.0
47.0
M20x1
M25x1.5
M30x1.5
M40x1.5
Bearing Supports / End Machining - Ball Splines
WK Standard End Machining
Type WK / WK1 (inch)
Spline Size
(inch)
Standard
P/N
A
B
C
D
E
F
G
THD
1.000
1.500
2.000
7833596
7833597
7833602
4.528
5.039
5.787
3.189
3.504
3.622
.6693/.6686
.7874/.7866
1.3780/1.3771
.7872/.7869
.9841/.9837
1.5746/1.5742
2.283
2.480
2.441
0.197
0.197
0.315
1.181
1.260
1.850
M20x1
M25x1.5
M40x1.5
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171
Bearing Supports/End Machining — Ball Screws
SPACER
QK
SEALS
ANGULAR CONTACT BEARINGS
BACK TO BACK MOUNTING
UNLESS OTHERWISE STATED
SPACER
LOCKING WASHER
LOCK NUT
Bearing Supports / End Machining - Inch Series Ball Screw
QK Bearing Supports
Standard
P/N
Dia. X Lead
(inch)
7828282
7824154
7824155
7824156
7824157
0.500 x 0.200 & 0.500
0.631 x 0.200 & 1.000
0.750 x 0.200 & 0.500
0.875 x 0.200
1.000 x .200 & 0.250
1.000 x 0.500 & 1.000
1.171 x 0.413
1.150 x 0.200
1.250 x 0.200 & 0.500
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
1.750 x 0.200
2.000 X 0.200 & 0.500 & 1.000
2.250 X 0.500 & 1.000
2.500 X 0.250 & 0.500 & 1.000
7824158
7824159
7829554
7824160
7824161
Bearing Rating
Lock Nut
Type
Block Weight
(Ibs)
1960
2790
4700
6930
8150
5/16-24
N-01
N-02
N-03
N-04
2.0
1.5
3.5
3.5
5.5
2120
9400
N-05
9.5
1383
3050
13500
N-06
11.5
50600
66600
3084
4082
6800
9000
30200
39900
N-08
N-09
21.5
35.0
76800
4899
10800
47900
N-10
39.0
Lock Nut
Type
Block Weight
(kg)
M8-1.25
KM-01
KM-02
KM-04
KM-05
KM-06
KM-08
KM-10
0.9
0.7
1.6
2.5
4.3
5.2
9.8
17.7
(kgf)
Static Rating Co
(lbs)
Dynamic Rating Cam
(kgf)
(lbs)
(N)
(N)
467
726
1052
1452
1463
1030
1600
2320
3200
3225
4550
7100
10300
14200
14300
200
286
481
708
834
440
630
1060
1560
1838
1701
3750
16600
962
2359
5200
23000
5171
6804
11400
15000
7847
17300
Bearing Supports / End Machining - Metric Series Ball Screw
QK Bearing Supports
Standard
P/N
Dia. X Lead
(mm)
7829546
7829547
7829548
7829549
7829550
7829551
7829552
7829553
12
16
20
25
32
40
50
63
Bearing Rating
Static Rating Co
Dynamic Rating Cam
(kgf)
(lbs)
(N)
(kgf)
(lbs)
(N)
467
726
1052
1463
1701
2359
5171
7847
1030
1600
2320
3225
3750
5200
11400
17300
4550
7100
10300
14300
16600
23000
50600
76800
200
286
481
834
962
1383
3084
4899
440
630
1060
1838
2120
3050
6800
10800
1960
2790
4700
8150
9400
13500
30200
47900
Bearing Supports / End Machining - Ball Splines
QK Bearing Supports
Standard
P/N
Spline Size
(inch)
7828282
7824157
7824159
7829554
7824161
0.625
1.000
1.500
2.000
2.500
172
Bearing Rating
(kgf)
Static Rating Co
(lbs)
(N)
(kgf)
467
1463
2359
5171
7847
1030
3225
5200
11400
17300
4550
14300
23000
50600
76800
200
834
1383
3084
4899
Dynamic Rating Cam
(lbs)
(N)
440
1838
3050
6800
10800
1960
8150
13500
30200
47900
Lock Nut
Type
Block Weight
(lbs)
5/16-24
N-04
N-06
N-08
N-10
2.0
5.5
11.5
21.5
39.0
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
QK
P
N
H
E
F
B
A
d2
G
L
J
Ød1
R
D
C
Q
M
H
K
A
Bearing Supports / End Machining - Inch Series Ball Screw
QK Bearing Supports
Standard
d1
P/N
(mm)
Bearing Block Dimensions (inch)
d2
A&H
B
C
D
E
F
G
J
K
L
2.750
3.000
3.500
4.000
4.500
1.645
1.700
1.900
2.000
2.400
1.375
1.125
1.375
1.375
1.750
1.000
1.000
1.125
1.250
1.438
2.000
1.880
2.130
2.380
2.750
M
N
P
Q
R
7828282
7824154
7824155
7824156
7824157
9
12
15
17
20
1.530
1.260
1.730
1.890
2.200
1.000
1.125
1.250
1.437
1.625
1.380
1.500
1.750
2.000
2.250
0.630
0.670
0.750
0.830
0.940
-
1.190
1.340
1.500
1.660
1.870
4x .281 dia
2x .281 Thru, .50 C-Bore x .56 Dp
4x .281 dia 2x .406 Thru, .625 C-Bore x .875 Dp
4x .281 dia 2x .406 Thru, .625 C-Bore x .875 Dp
4x .406 dia 2x .531 Thru, .812 C-Bore x 1.125 Dp
4x .469 dia 2x .656 Thru, 1.00 C-Bore x 1.312 Dp
0.02
0.02
0.02
0.04
1.8
1.6
2.1
2.3
2.7
0.688
0.625
0.750
0.750
0.938
7824158
25
2.360
2.125
3.000 6.000 0.970
-
1.940 2.600 2.000 1.750 3.380 4x .656 dia 2x .906 Thru, 1.375 C-Bore x 2.00 Dp
0.03
2.9
1.000
7824159
30
2.520
2.375
3.250 6.500 1.030
-
2.060 2.700 2.000 1.875 3.630 4x .656 dia 2x .906 Thru, 1.375 C-Bore x 2.062 Dp 0.05
3
1.000
7829554
7824160
40
45
3.620
3.940
2.937
3.313
3.750 7.500 0.760 1.630 3.150 3.800 3.000 2.250 4.250 6x .656 dia 4x .906 Thru, 1.375 C-Bore x 2.25 Dp 0.05
4.250 8.500 0.870 1.720 3.470 4.200 3.625 2.813 5.630 6x .812 dia 4x 1.031 Thru, 1.625 C-Bore x 3.50 Dp 0.05
4.2
4.5
1.500
1.813
7824161
50
4.250
3.563
4.500 9.000 0.920 1.720 3.560 4.500 3.625 2.813 5.630 6x .812 dia 4x 1.031 Thru, 1.625 C-Bore x 3.50 Dp 0.05
4.9
1.813
P
Q
R
0.51
0.51
1
0.76
1.14
1.27
2.29
46.25
40.64
53.34
68.58
73.66
76.2
106.68
124.46
17.5
15.9
19.1
23.8
25.4
25.4
38.1
46.1
Bearing Supports / End Machining - Metric Series Ball Screw
QK Bearing Supports
Standard
d1
P/N
(mm)
7829546
7829547
7829548
7829549
7829550
7829551
7829552
7829553
9
12
15
20
25
30
40
50
Bearing Block Dimensions (mm)
d2
A&H
B
C
D
E
37.0
32.0
44.0
56.0
60.0
64.0
92.0
108.0
25.4
28.6
31.8
41.3
54.0
60.3
74.6
90.5
35.0
38.0
45.0
57.0
76.0
83.0
96.0
115.0
70.0
76.0
89.0
114.0
152.0
165.0
192.0
230.0
16.0
17.0
19.0
24.0
24.5
26.0
19.2
23.5
41.5
43.8
F
G
30.2 35.0
34.0 43.0
38.0 47.0
48.0 60.0
49.0 65.0
52.0 68.0
80.0 96.0
90.8 113.0
J
K
L
35.0
29.0
35.0
44.0
51.0
51.0
76.0
92.0
25.40
25.40
28.58
36.53
44.45
47.63
57.15
71.45
50.8
47.8
54.1
69.9
85.9
92.2
108.0
143.0
M
N
4x 7.13 dia 2x 7.13 Thru, 12.7 C-Bore x 14.22 Dp
4x 7.13 dia 2x 10.31 Thru, 15.88 C-Bore x 22.23 Dp
4x 7.13 dia 2x 10.31 Thru, 15.88 C-Bore x 25.40 Dp
4x 11.91 dia 2x 16.66 Thru, 25.40 C-Bore x 33.33 Dp
4x 16.66 dia 2x 23.01 Thru, 34.93 C-Bore x 50.80 Dp
4x 6.66 dia 2x 23.01 Thru, 34.93 C-Bore x 52.38 Dp
6x 16.66 dia 4x 23.01 Thru, 34.93 C-Bore x 57.15 Dp
6x 20.63 dia 4x 26.19 Thru, 41.28 C-Bore x 88.90 Dp
Bearing Supports / End Machining - Ball Splines
QK Bearing Supports
Standard
d1
P/N
(mm)
7828282
7824157
7824159
7829554
7824161
9
20
30
40
50
Bearing Block Dimensions (inch)
d2
A&H
B
C
1.440
2.200
2.520
3.620
4.250
1.000
1.625
2.375
2.937
3.563
1.380
2.250
3.250
3.750
4.500
2.750
4.500
6.500
7.500
9.000
www.thomsonlinear.com
D
E
F
0.630
1.190
0.940
1.870
1.030
2.060
0.760 1.630 3.150
0.920 1.720 3.560
G
J
K
L
M
N
P
Q
R
1.400
2.400
2.700
3.800
4.500
1.375
1.750
2.000
3.000
3.625
1.000
1.438
1.875
2.250
2.813
2.000
2.750
3.630
4.250
5.630
4x .281 dia
4x .469 dia
4x .656 dia
6x .656 dia
6x .812 dia
2x .281 Thru, .50 C-Bore x .56 Dp
2x .656 Thru, 1.00 C-Bore x 1.312 Dp
2x .906 Thru, 1.375 C-Bore x 2.062 Dp
4x .906 Thru, 1.375 C-Bore x 2.25 Dp
4x 1.031 Thru, 1.625 C-Bore x 3.50 Dp
0.04
0.05
0.05
0.05
1.8
2.7
3
4.2
4.9
0.688
0.938
1.000
1.500
1.813
173
Bearing Supports/End Machining — Ball Screws
QF
DEEP GROOVE
RADIAL BALL BEARING
LOCKING WASHER
LOCK NUT
Bearing Supports / End Machining - Inch Series Ball Screw
QF Bearing Supports
Standard
P/N
Dia. X Lead
(inch)
Lock Nut
Type
Block Weight
(Ibs)
7833291
7833256
7833259
7833262
7833265
0.500 x 0.200 & 0.500
0.631 x 0.200 & 1.000
0.750 x 0.200 & 0.500
0.875 x 0.200
1.000 x .200 & 0.250
1.000 x 0.500 & 1.000
1.171 x 0.413
1.150 x 0.200
1.250 x 0.200 & 0.500
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
1.750 x 0.200
2.000 X 0.200 & 0.500 & 1.000
2.250 X 0.500 & 1.000
2.500 X 0.250 & 0.500 & 1.000
5/16-24
N-01
N-02
N-03
N-04
0.8
1.3
1.6
2.3
5.8
N-05
6.8
N-06
8.7
N-08
N-09
9.7
16.2
N-10
18.5
7833268
7833270
7833273
7833276
7833279
Bearing Supports / End Machining - Metric Series Ball Screw
QF Bearing Supports
Standard
P/N
Dia. X Lead
(mm)
Lock Nut
Type
Block Weight
(kg)
7833292
7833282
7833283
7833284
7833285
7833286
7833287
7833288
12
16
20
25
32
40
50
63
M8-1.25
KM-01
KM-02
KM-03
KM-05
KM-06
KM-08
KM-10
0.2
0.3
0.3
1.2
1.4
1.8
2.0
3.8
Bearing Supports / End Machining - Ball Splines
QF Bearing Supports
174
Standard
P/N
Spline Size
(inch)
Lock Nut
Type
Block Weight
(Ibs)
7833291
7833265
7833270
7833273
7833279
0.625
1.000
1.500
2.000
2.500
5/16-24
N-04
N-06
N-08
N-10
0.8
5.8
8.7
9.7
18.5
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Lead Screws, Ball Screws and Ball Splines
Bearing Supports/End Machining — Ball Screws
QF
ØM
H
d2
d2
H
ØN
D
A
F
Ød1
L
J
R
K
A
B
C
Bearing Supports / End Machining - Inch Series Ball Screw
QF Bearing Supports
Standard
P/N
Bearing Block Dimensions (inch)
d1
(mm)
d2
A&H
B
C
D
F
J
K
L
M
N
Q
R
7833291
7833256
7833259
7833262
7833265
9
12
15
17
20
0.118
0.197
0.217
0.236
0.276
1.000
1.125
1.250
1.437
1.625
1.380
1.500
1.750
2.000
2.250
2.750
3.000
3.500
4.000
4.500
0.276
0.394
0.433
0.473
0.551
0.551
0.787
0.866
0.945
1.102
1.375
1.125
1.375
1.375
1.750
1.000
1.000
1.125
1.250
1.438
2.000
1.880
2.130
2.380
2.750
4x .281 dia
4x .281 dia
4x .281 dia
4x .406 dia
4x .469 dia
2x .281 Thru, .50 C-Bore x .56 Dp
2x .406 Thru, .625 C-Bore x .875 Dp
2x .406 Thru, .625 C-Bore x .875 Dp
2x .531 Thru, .812 C-Bore x 1.125 Dp
2x .656 Thru, 1.00 C-Bore x 1.312 Dp
0.757
0.96
1.019
1.109
1.258
0.688
0.625
0.750
0.750
0.938
7833268
25
0.531
2.125
3.000
6.000
0.827
1.654
2.000
1.750
3.380
4x .656 dia
2x .906 Thru, 1.375 C-Bore x 2.00 Dp
1.654
1.000
7833270
30
0.512
2.375
3.250
6.500
0.827
1.654
2.000
1.875
3.630
4x .656 dia
2x .906 Thru, 1.375 C-Bore x 2.062 Dp
1.654
1.000
7833273
7833276
40
45
0.453
0.492
2.937
3.313
3.750
4.250
7.500
8.500
0.906
0.985
1.811
1.969
3.000
3.625
2.250
2.813
4.250
5.630
6x .656 dia
6x .812 dia
4x .906 Thru, 1.375 C-Bore x 2.25 Dp
4x 1.031 Thru, 1.625 C-Bore x 3.50 Dp
1.869
1.987
1.500
1.813
7833279
50
0.531
3.563
4.500
9.000
1.063
2.126
3.625
2.813
5.630
6x .812 dia
4x 1.031 Thru, 1.625 C-Bore x 3.50 Dp
2.167
1.813
Bearing Supports / End Machining - Metric Series Ball Screw
QF Bearing Supports
Standard
P/N
7833292
7833282
7833283
7833284
7833285
7833286
7833287
7833288
Bearing Block Dimensions (mm)
d1
(mm)
9
12
15
20
25
30
40
50
d2
A&H
B
C
D
F
J
K
L
M
N
Q
R
3.0
5.0
5.5
7.0
13.5
13.0
11.5
13.5
25.4
28.6
31.8
41.3
54.0
60.3
74.6
90.5
35.0
38.0
45.0
57.0
76.0
83.0
96.0
115.0
70.0
76.0
89.0
114.0
152.0
165.0
192.0
230.0
7.0
10.0
11.0
14.0
21.0
21.0
23.0
27.0
14.0
20.0
22.0
28.0
42.0
42.0
46.0
54.0
35.0
29.0
35.0
44.0
51.0
51.0
76.0
92.0
25.40
25.40
28.58
36.53
44.45
47.63
57.15
71.45
50.8
47.8
54.1
69.9
85.9
92.2
108.0
143.0
4x 7.13 dia
4x 7.13 dia
4x 7.13 dia
4x 11.91 dia
4x 16.66 dia
4x 6.66 dia
6x 16.66 dia
6x 20.63 dia
2x 7.13 Thru, 12.7 C-Bore x 14.22 Dp
2x 10.31 Thru, 15.88 C-Bore x 22.23 Dp
2x 10.31 Thru, 15.88 C-Bore x 25.40 Dp
2x 16.66 Thru, 25.40 C-Bore x 33.33 Dp
2x 23.01 Thru, 34.93 C-Bore x 50.80 Dp
2x 23.01 Thru, 34.93 C-Bore x 52.38 Dp
4x 23.01 Thru, 34.93 C-Bore x 57.15 Dp
4x 26.19 Thru, 41.28 C-Bore x 88.90 Dp
18.5
20
22
28
42
42
46
54
17.5
15.9
19.1
23.8
25.4
25.4
38.1
46.1
Bearing Supports / End Machining - Ball Splines
QF Bearing Supports
Standard
P/N
7833291
7833265
7833270
7833273
7833279
Bearing Block Dimensions (inch)
d1
(mm)
9
20
30
40
50
d2
A&H
B
C
D
F
J
K
L
M
N
Q
R
0.118
0.276
0.512
0.453
0.531
1.000
1.625
2.375
2.937
3.563
1.380
2.250
3.250
3.750
4.500
2.750
4.500
6.500
7.500
9.000
0.276
0.551
0.827
0.906
1.063
0.551
1.102
1.654
1.811
2.126
1.375
1.750
2.000
3.000
3.625
1.000
1.438
1.875
2.250
2.813
2.000
2.750
3.630
4.250
5.630
4x .281 dia
4x .469 dia
4x .656 dia
6x .656 dia
6x .812 dia
2x .281 Thru, .50 C-Bore x .56 Dp
2x .656 Thru, 1.00 C-Bore x 1.312 Dp
2x .906 Thru, 1.375 C-Bore x 2.062 Dp
4x .906 Thru, 1.375 C-Bore x 2.25 Dp
4x 1.031 Thru, 1.625 C-Bore x 3.50 Dp
0.757
1.258
1.654
1.869
2.167
0.688
0.938
1.000
1.500
1.813
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175
TYPE QK, REQUIRED FOR QK SUPPORT
A
B
D
THD. F
TYPE QF, REQUIRED QF SUPPORT
A
B
THD.
F
D
C
C
G
G
Bearing Supports/End Machining
— Ball Screws
.016
E
.032
QK
UPPORT
D
B
THD.
C
C
.016G
.016.032
.032
G
F SUPPORT
TYPE QK1, REQUIRED FOR QK SUPPORT
TYPE QF1,FOR
REQUIRED
FOR QF SUPPORT
TYPE QK, REQUIRED
QK SUPPORT
A
B
BD
THD.
D
THD. F
F
.016
.032
E
E
E
.016
.032
E
Bearing Supports TYPE
/ End
Machining
- Inch Series Ball Screw
QK1, REQUIRED
FOR QK SUPPORT
QK Standard End Machining
D
B
THD.
Type QK / QK1 (inch)
B
C
D
E
F
G
THD
Bearing
Trade
No.
2.915
3.292 .016
.032
3.180
3.649
4.028
1.665
1.992
2.180
2.334
2.713
.2500/.2490
.4060/.4050
.5000/.4990
.5620/.5610
.6250/.6240
.3544/.3541
.4726/.4723
.5908/.5905
.6695/.6692
.7877/.7873
1.260
1.576
1.732
1.888
2.204
0.094
0.125
0.125
0.125
0.188
1.000
1.250
0.875
1.250
1.250
5/16-24
N-01
N-02
N-03
N-04
609
7201
7202
7203
7204
7824158
4.453
2.893
.7500/.7490
.9846/.9842
2.364
0.188
1.250
N-05
7205
7824159
4.860
3.050
1.000/.9990
1.1814/1.1810
2.520
0.250
1.250
N-06
7206
7829554
7824160
6.368
6.682
4.178
4.492
1.3750/1.3740
1.3750/1.3740
1.5752/1.5747
1.7721/1.7716
3.624
3.936
0.313
0.313
1.875
1.875
N-08
N-09
7308
7309
7824161
7.749
4.872
1.7500/1.7490
1.9689/1.9684
4.252
0.375
2.750
N-10
7310
Dia x Lead
(inch)
Standard
P/N
0.500 x 0.200 & 0.500
0.631 x 0.200 & 1.000
0.750 x 0.200 & 0.500
0.875 x 0.200
1.000 x .200 & 0.250
1.000 x 0.500 & 1.000
1.171 x 0.413
1.150 x 0.200
1.250 x 0.200 & 0.500
1.500 x 0.473 & 1.000
1.500 x 0.200 & 0.250
1.500 x 0.500 & 1.875
1.500 x 2.000
1.750 x 0.200
2.000 x 0.200 & 0.500 & 1.000
2.250 x 0.500
2.250 x 1.000
2.500 x 0.250
2.500 x 0.500
2.500 x 1.000
7828282
7824154
E
7824155
7824156
7824157
A
Bearing Supports / End Machining - Metric Series Ball Screw
QK Standard End Machining
Type QK / QK1 (mm)
Dia x Lead
(mm)
Standard
P/N
A
B
C
D
E
F
G
THD
Bearing
Trade
No.
12
16
20
25
32
40
50
63
7829546
7829547
7829548
7829549
7829550
7829551
7829552
7829553
73.0
84.0
80.0
103.0
113.0
124.0
164.0
197.0
46.0
51.0
55.0
69.0
74.0
78.0
109.0
124.0
6.000/5.987
10.000/9.987
12.000/11.984
16.000/15.984
20.000/19.980
25.000/24.980
32.000/31.976
40.000/39.377
9.001/8.994
12.006/11.999
15.006/14.999
20.007/19.997
25.008/24.996
30.007/29.997
40.010/39.997
50.010/49.997
36.0
40.0
44.0
56.0
60.0
64.0
92.0
108.0
3.0
4.0
5.0
5.0
8.0
8.0
10.0
30.0
22.0
30.0
32.0
34.0
47.0
65.0
M8-1.25
KM-01
KM-02
KM-04
KM-05
KM-06
KM-08
KM-10
609
7201
7202
7204
7205
7206
7308
7310
Bearing Supports / End Machining - Ball Splines
QK Standard End Machining
176
Type QK / QK1 (inch)
Spline Size
(inch)
Standard
P/N
A
B
C
D
E
F
G
THD
Bearing
Trade
No.
0.625
1.000
1.500
2.000
2.500
7828282
7824157
7824159
7829554
7824161
2.915
4.028
4.860
6.368
7.749
1.665
2.713
3.050
4.178
4.872
.2500/.2490
.6250/.6240
1.0000/.9990
1.3750/.1.3740
1.7500/1.7490
.3544/.3541
.7877/.7873
1.1814/1.1810
1.5752/1.5747
1.9689/1.9684
1.260
2.204
2.520
3.624
4.252
0.094
0.188
0.250
0.313
0.375
1.000
1.250
1.250
1.875
2.750
5/16-24
N-04
N-06
N-08
N-10
609
7204
7206
7308
7310
www.thomsonlinear.com
TYPE QK, REQUIRE
TYPE QF, REQUIRED QF SUPPORT
A
B
THD.
F
D
B
D
Lead Screws, Ball Screws and Ball Splines
C
G
Bearing Supports/End Machining — Ball Screws
QF
E
.016
.032
E
TYPE QK, REQUIRED
QK SUPPORT
TYPE QF1,FOR
REQUIRED
FOR QF SUPPORT
A
B
BD
THD.
D
THD. F
TYPE QF, REQUIRED QF SUPPORT
A
B
THD.
F
D
D
C
C
G
.016
.032
E
TYPE QK1, REQUIRE
E
E
.016G
.016.032
.032
E
Bearing Supports / TYPE
EndQF1,Machining
- Inch Series Ball Screw TYPE QK1, REQUIRED FOR QK SUPPORT
REQUIRED FOR QF SUPPORT
QF Standard End Machining
D
B
D
THD.
B
THD.
Type QF / QF1 (inch)
Standard
P/N
A
B
7833291
7833256
7833259
7833262
7833265
1.970
2.110
1.870
2.233
2.375
0.720
0.810
E
0.870
0.918
1.060
7833268
2.680
7833270
G
THD
Bearing Trade
No.
1.000
1.250
0.875
1.250
1.250
5/16-24
N-01
N-02
N-03
N-04
609
6201
6202
6203
6204
0.188
1.250
N-05
6205
0.630
0.250
1.250
N-06
6206
1.5752/1.5747
1.7721/1.7716
0.906
0.984
0.313
0.313
1.875
1.875
N-08
N-09
6308
6309
1.9689/1.9684
1.063
0.375
2.750
N-10
6310
C
D
E
.2500/.2490
.5000/.4990
.5620/.5610
.6250/.6240
.3544/.3541
.4726/.4723
.5908/.5905
.6695/.6692
.7877/.7873
0.315
0.394
0.433
0.472
0.551
1.120
.7500/.7490
.9846/.9842
0.591
2.970
1.160
1.0000/.9990
1.1814/1.1810
7833273
7833276
3.650
3.730
1.460
1.540
1.3750/1.3740
1.3750/1.3740
7833279
4.560
1.680
1.7500/1.7490
.016
.032.4060/.4050
F
E
0.094
0.125
0.125
0.125
0.188
.016
.032
Bearing Supports / End Machining - Metric Series Ball Screw
QF Standard End Machining
Type QF / QF1 (mm)
Standard
P/N
A
B
C
D
E
F
G
THD
Bearing Trade
No.
7833292
7833282
7833283
7833284
7833285
7833286
7833287
7833288
46.0
54.0
47.0
61.0
68.0
76.0
95.0
116.0
19.0
21.0
22.0
27.0
29.0
30.0
40.0
43.0
6.000/5.987
10.000/9.987
12.000/11.984
16.000/15.984
20.000/19.980
25.000/24.980
32.000/31.976
40.000/39.977
9.001/8.994
12.006/11.999
15.006/14.999
20.007/19.997
25.008/24.996
30.007/29.997
40.010/39.997
50.010/49.997
7.0
10.0
11.0
14.0
15.0
16.0
23.0
27.0
3.0
4.0
5.0
5.0
8.0
8.0
10.0
30.0
22.0
30.0
32.0
34.0
47.0
65.0
M8-1.25
KM-01
KM-02
KM-04
KM-05
KM-06
KM-08
KM-10
609
6201
6202
6204
6205
6206
6308
6310
Bearing Supports / End Machining - Ball Splines
QF Standard End Machining
Type QF / QF1 (inch)
Standard
P/N
A
B
C
D
E
F
G
THD
Bearing Trade
No.
7833291
7833265
7833270
7833273
7833279
1.970
2.375
2.970
3.650
4.560
0.720
1.060
1.160
1.460
1.680
.2500/.2490
.6250/.6240
1.0000/.9990
1.3750/1.3740
1.7500/1.7490
.3544/.3541
.7877/.7873
1.1814/1.1810
1.5752/1.5747
1.9689/1.9684
0.315
0.551
0.630
0.906
1.063
0.094
0.188
0.250
0.313
0.375
1.000
1.250
1.250
1.875
2.750
5/16-24
N-04
N-06
N-08
N-10
609
6204
6206
6308
6310
www.thomsonlinear.com
177
B
NOTES:
178
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Lead Screws, Ball Screws and Ball Splines
Engineering
Table of Contents
DescriptionPage
Lead Screws...................................................................................................181
Need a quote or have a question about an
application? Contact us in North America at:
Ball Screws — Inch Series.........................................................................189
Phone: 540-633-3400
Ball Screws — Metric Series.....................................................................203
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
Ball Splines.....................................................................................................213
Installation......................................................................................................217
Maintenance and Service............................................................................227
Lubrication......................................................................................................233
Glossary/Formulas.........................................................................................233
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179
NOTES:
180
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Lead Screws, Ball Screws and Ball Splines
Lead Screws — Engineering
Need a quote or have a question about an
application? Contact us in North America at:
Phone: 800-882-8857
www.thomsonlinear.com
Email:
thomsonbsa@thomsonlinear.com
Web:
www.thomsonbsa.com
181
Lead Screws Engineering Overview
Precision Lead Screws & Supernuts®
Features/Advantages
Custom
Low Cost
Option of custom designs to fit into your design envelope.
Considerable savings when compared to ball screw assemblies.
Non-Corrosive*
Variety
Stainless Steel and internally lubricated acetal.
Largest range of leads and diameters 3/16” to 3” to match your
requirements.
Environment
Less susceptible to particulate contamination compared to ball
screws.
Lubrication
Internally lubricated plastic nuts will operate without lubrication.
However, additional lubrication or PTFE coating of the screw is
recommended to optimize efficiency and life. See page 233.
Lightweight
Less mass to move.
Temperature
Vibration and Noise
No ball recirculating vibration and often less audible noise compared
to ball screws.
Design Considerations
Load
Supernuts provide a cost effective solution for moderate to light
loads. For vertical applications, anti backlash supernuts should be
mounted with thread/flange on the bottom.
Ambient and friction generated heat are the primary causes of
premature plastic nut failure. Observe the temperature limits
below and discuss your design with our application engineers for
continuous duty, high load and high speed applications.
Thomson BSA recommends bronze nuts for very high temperature
environments or can aid in your selection of high temperature plastic
for a custom assembly.
Efficiency
Cantilevered loads that might cause a moment on the nut will cause
premature failure.
Except at very high leads, efficiency increases as lead increases.
Although the internally lubricated acetal provides excellent lubricity,
Ball Screw Assemblies remain significantly more efficient than any
Acme design.
Column Loading
Length Limitations
Refer to column loading chart on page 212.
Refer to critical speed chart on page 211.
3/16” to 1/4” 3’
5/16” to 10mm 4’
7/16” to 5/8” 6’
>5/8”
12’
Self-Locking
Lead Accuracy
Lead screws can be self locking at low leads. Generally, the lead of
the screw should be more than 1/3 of the diameter to satisfactorily
backdrive.
Standard Grade (SRA)
Precision Grade (SPR)
Cantilevered Loads
Critical Speed
Assembly
Screws
.010 in/ft
.003 in/ft
Nuts**
Maximum
Temperature
Friction
Coefficient
Material
Material
Tensile
Strength
180°F
0.08 – 0.14
Stainless Steel*
Acetal with PTFE
8,000 psi
Water
Absorption
(24 HRS %)
0.15
Thermal
Expansion
Coefficient
5.4 x 10-5 in. /in. /°F
* Other materials available on a custom basis.
** Plastic nuts only. See bronze nut section for information on our bronze nut products, page 33.
182
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Lead Screws
Critical Speed Limits Chart for Lead Screws and Miniature Rolled Ball Screws
Every screw shaft has a rotational speed limit. That is the point at which the rotational speed sets up excessive vibration. This critical point is
modified by the type of end bearing support used.
To use this chart, determine the required rpm and the maximum length between bearing supports. Next, select one of the four types of end
support shown below. The critical speed limit can be found by locating the point at which rpm (horizontal lines) intersects with the unsupported
screw length (vertical lines) as modified by the type of supports selected below. We recommend operating at no more than 80% of the critical
speed limit to allow for misalignment and/or lack of screw straightness. If speed falls into dotted line, consult factory.
Warning: Curves for the screw diameters shown are based on the smallest root (minor) diameter of the standard screws within the nominal
size range and truncated at the maximum ball nut rotational speed. DO NOT EXCEED this rpm regardless of screw length.
3,000
2,000
ROTATIONAL SPEED (RPM)
1,500
1,000
900
800
700
600
500
1/
4
400
5/
16
300
4
3/
8
7/
16
3
1/
2
200
2 1/2
5/
8
3/
4
2
1
1 1/2
1 1/4
100
Fixed-Free
A
MAXIMUM LENGTH (INCHES) BETWEEN BEARINGS
Inches 6
mm
152
12
304
18
457
24
609
30
762
36
914
42
1056
48
1219
54
1371
60
1524
66
1676
72
1828
78
1981
84
2133
90
2286
96
2438
102
2590
108
2743
120
3048
126
3200
Inches 10
mm
254
20
508
30
762
40
1016
50
1270
60
1524
70
1778
80
2032
90
2286
100
2540
110
2794
120
3048
130
3302
140
3556
150
3810
160
4064
170
4318
180
4572
190
4826
200
5080
Inches 12
mm
304
24
609
36
914
48
1219
61
1549
73
1854
85
2159
97
2463
109
2768
121
3073
133
3378
145
3683
158
4013
170
4318
182
4622
194
4927
206
5232
218
5537
230
5842
242
6146
Inches 15
mm
381
30
762
45
1143
60
1524
75
1905
90
2286
105
2667
119
3022
134
3403
149
3784
164
4165
179
4546
194
4927
209
5308
224
5689
239
6070
254
6451
269
6832
284
7213
298
7569
Simple-Simple
B
Fixed-Simple
C
Fixed-Fixed
D
www.thomsonlinear.com
183
Engineering Guidelines for Lead Screws
Column Loading Capacities Chart for Lead Screws and Miniature Rolled Ball Screws
Use the chart below to determine the Maximum Compression Load for Screw Shaft. Usually, screw operated in tension can handle loads up to
the rated capacity of the nut, providing the screw length is within standard lengths. End supports have an effect on the load capacity of screws.
The four standard variations are shown below with corresponding rating adjustments. Find the point of intersecting lines of load (horizontal) and
length (vertical) to determine the minimum safe diameter of screw. If loads fall into dotted lines, consult factory.
Warning: DO NOT EXCEED ball nut capacity. Curves for the screw diameters shown are based on the smallest root (minor) diameter of the
standard screws within the nominal size range.
477,000
254,000
138,000
100,000
90,000
80,000
70,000
60,000
50,000
COMPRESSION LOAD (LBS)
40,000
30,000
4
20,000
15,000
3
10,000
9,000
8,000
7,000
6,000
5,000
21/2
2
4,000
3,000
2,000
1,500
11/2
1,000
900
800
700
600
500
11/4
400
300
1
200
100
Fixed-Free
A
1/4 5/16 3/8
7/16
1/2
5/8
3/
4
MAXIMUM LENGTH (INCHES) BETWEEN BEARINGS
Inches
mm
5
127
10
254
15
381
20
508
Inches
mm
10
254
20
508
30
762
60
70
50
100 110 120 130 140 150 160 170 180 190
90
80
40
1016 1270 1524 1778 2032 2286 2540 2794 3048 3302 3556 3810 4064 4318 4572 4826
Inches
mm
14
356
28
711
85
99
71
113 127 141 156 170 184 198 212 226 240 255 270
57
42
1067 1448 1803 2159 2515 2870 3226 3581 3962 4318 4674 5029 5385 5740 6096 6477 6858
Inches
mm
20
508
100 120 140 160 180 200 220 240 260 280 300 320 340 360 380
80
60
40
1016 1524 2032 2540 3048 3556 4064 4572 5080 5588 6096 6604 7112 7620 8128 8636 9144 9652
25
635
30
762
35
889
95
90
85
80
75
70
65
60
55
50
45
40
1016 1143 1270 1397 1524 1651 1778 1905 2032 2159 2286 2413
Simple-Simple
B
Fixed-Simple
C
Fixed-Fixed
D
LOAD
Compression (Column) Load
184
LOAD
Tension (Pulling) Load
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Glide Screws
The Glide ScrewTM is designed to actuate a moment load or a side load without additional linear guidance
or support. Therefore, the screw deflection is the determinant feature and the following charts must be used
when properly sizing a Glide ScrewTM for an application.
How the Glide Screw™ Works
axial
load
The unique design of Glide Screw™ allows it to handle axial, radial
and moment loads without additional guidance. The result is an
efficient and space saving design that is quick and easy to install with
reduced maintenance needs compared to traditional solutions.
axial
load
radial
load
moment
load
= load lines
= reactionary forces
End Support
Decide which type of end support you will use to enable
accurate selection of diameter.
1.
Fixed support – utilizes a support journal length at least 1.5 ×
the journal diameter – such as dual ball bearings.
Max. Length
Simple support – uses a single ball bearing, a plain bearing, or
a bushing.
2.
End support configurations shown at left:
1. Simple / simple
2. Fixed / simple
3. Fixed / fixed
Max. Length
3.
Max. Length
www.thomsonlinear.com
185
Engineering Guidelines for Glide Screws
Moment Load and Radial Load Charts
Determine your end support configuration and then use the following charts to properly size the nominal diameter of the Glide ScrewTM. Select a
product diameter that lies above and / or to the right of the design moment or load. The lead of a Glide ScrewTM is defined as the axial distance
traveled for one revolution of the screw. Select the appropriate lead of your screw based on the desired speed and resolution of travel. Note
that the Glide ScrewTM is limited to 300 RPM.
180
250
160
225
140
200
120
Radial load [lbs]
Moment load [in-lbs]
Inch Diameter Models
100
80
60
175
150
125
100
75
40
50
20
25
0
0
2
4
6
8
10
12
14
16
18
0
20
0
2
4
6
Unsupported length [in]
8
10
12
14
16
18
20
400
450 500
Unsupported length [in]
18
1000
16
900
14
800
12
Radial load [N]
Moment load [Nm]
Metric Diameter Models
10
8
6
600
500
400
300
4
200
2
100
0
0
50
100
150 200
250
300 350
400
450 500
Unsupported length [mm]
= 0.375 inch
= 0.250 inch
= 0.188 inch
0
0
50
100
150 200
= 10 mm
= 6 mm
= 4 mm
250
300 350
Unsupported length [mm]
End support type
Screw diameters
186
700
= fixed in both ends
= simple in one end and fixed in other
= simple in both ends
Conversion factors
1.0 in-lb = 0.113 Nm
1.0 lb
= 4.448 N
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Glide Screws
Recommended end machining
End support type
fixed / fixed
fixed / simple
simple / simple
Inch Series End Machining Dimensions
Screw Screw
Diam. Lead
[in]
[in]
0.188
0.250
0.375
Screw
Part No.
Root
Diameter
[in]
0.050
GS18x0050
0.12
0.125
GS18x0125
0.13
0.050
GS25x0050
0.19
0.500
GS25x0500
0.16
0.063
GS37x0063
0.30
0.500
GS37x0500
0.27
1.000
GS37x1000
0.24
Recommended Bearing
Dimensions [in]
OD
[mm]
ID
[mm]
W
[mm]
Bearing
Trade No.
A
B
C
D
E
F
G
H
L
THD
7
2,5
2,5
692X
0.197
0.098
N/A
0.098
N/A
0.022
0.120
0.075
0.157
N/A
13
4
5
624
0.295
0.118
0.610
0.157
0.374
0.020
0.217
0.150
0.256
M4×x0.5
19
6
6
626
0.394
0.197
0.728
0.236
0.453
0.030
0.266
0.220
0.315
M6×0.75
Metric Series End Machining Dimensions
Screw Screw
Diam. Lead
[mm] [mm]
4
6
10
Screw
Part No.
Root
Diameter
[mm]
1
GS4x1M
2.8
4
GS4x4M
2.8
8
GS4x8M
2.8
1
GS6x1M
4.6
6
GS6x6M
4.4
12
GS6x12M
4.4
2
GS10x2M
7.3
6
GS10x6M
8.4
12
GS10x12M
8.4
www.thomsonlinear.com
Recommended Bearing
Dimensions [mm]
OD
[mm]
ID
[mm]
W
[mm]
Bearing
Trade No.
A
B
C
D
E
F
G
H
L
THD
7
2.5
2.5
692X
5.00
2.50
N/A
2.50
N/A
0.55
3.05
1.90
4.00
N/A
13
4
5
624
7.50
3.00
15.50
4.00
9.50
0.51
5.51
3.81
6.50
M4×x0.5
13
6
6
626
10.00
5.00
18.50
6.00
11.50
0.76
6.76
5.59
8.00
M6×0.75
187
Engineering Guidelines for Glide Screws
Basic Installation Guidlines
The success of the Glide ScrewTM in an application is primarily dependent on the end support configuration. Since the Glide ScrewTM is a
combination of a lead screw and linear bearing, the ability to handle non-axial loads while maintaining positional accuracy is the key to a
successful installation. The load capacity curves are based on screw deflection and not the lead nut capacity. Therefore, stiffness of the
assembly determines load capacity.
Installation Step-by-Step
1.
Select end support configuration
A fixed bearing support should be selected when possible. A simple support
is typically a single radial bearing that is allowed to float axially to compensate
for misaligments. Typical methods of attaching end supports is either base
mounting or flange mounting.
2.
Select motor and drive configuration
3.
Select nut mounting interface
4.
Determine anti-rotation method
Select a motor and your means for coupling the screw to the motor. Typically this
is done by a belt, gearing or an in-line coupler. It is also possible to directly
integrate a Glide Screw™ with a stepper motor, which can reduce complexity
and save space.
1
2
3
The standard configurations for the glide nut are flanged nuts and cylindrical
nuts but are by no means the only solutions. Custom configurations, custom
mounting and design assistance are available from Thomson.
4
The Glide ScrewTM requires an external anti-rotation feature on the nut housing
to function correctly. Two examples of acceptable methods are the finger / slot
solution or the bushing / linear shaft solution.
5. Mount the assembly into the application
5
The actual mounting of the Glide ScrewTM is easy once all of the periphrials
have been determined and designed. Just bolt the assembly in place and fire up
the system. No critical alignment procedures are necessary as the drive system
and linear guidance are already in perfect alignment.
188
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Lead Screws, Ball Screws and Ball Splines
Ball Screws — Inch Series Engineering
Need a quote or have a question about an
application? Contact us in North America at:
Phone: 540-633-3549
www.thomsonlinear.com
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
189
Engineering Guidelines for Inch Series Ball Screws
Selecting a Ball Screw Assembly for Your Application — Inch Series
A ball screw assembly is a mechanical device for translating
rotational motion to linear motion. As well as being able to apply or
withstand high thrust loads, they can do so with minimum internal
friction. They are made to close tolerances and are therefore
suitable for use in situations in which high precision is necessary.
The selection of the correct ball screw assembly for a specific
application is an iterative process to determine the smallest envelope
and most cost-effective solution. Below is a list of the most common
(but not complete) design considerations used to select a ball screw
assembly.
•
•
•
•
•
•
•
•
Compression or Tension Load
Linear Velocity
Positional Accuracy and Repeatability
Required Life Expectancy
Mounting Configuration
Dimensional Constraints
Input Power Requirements
Environmental Condition
At a minimum, the design load, linear velocity, and positional
accuracy should be the known inputs and are used to calculate
the diameter, lead, and load capacity of the ball screw assembly.
Individual ball screw components are then selected based on life,
dimensional constraints, mounting configuration, and environmental
conditions.
The following procedure will take you through the most common
application-based selection of a ball screw assembly. As no two
applications are the same, so the determination process is never the
same.
1. Determine the required positional accuracy and repeatability
that your application requires (page 194. Backlash is the linear
independent motion between the ball screw and the ball nut
and can be controlled by preloading the ball nut (page 195). The
manufacturing process, rolled screws versus ground screws,
dictates the accuracy (page 195).
2. Determine how you plan to mount the ball screw assembly
into your machine (see page 197). The configuration of the end
supports and the travel distance (Max L) will dictate the load and
speed limitations of the ball screw.
3. A ball nut in tension can handle loads up to the rated capacity of
the nut. For a ball nut in compression, calculate the Permissible
Compression Loading (page 193) or use the Compression Loading
Chart (page 201) to select a ball screw diameter that meets or
exceeds your design load.
4. Calculate the lead of the ball screw that will produce the speed
requirement (page 202).
190
5. The ball nut life can then be calculated using the Dynamic Load
Rating (Cam) provided in the catalog detail pages or use the Life
Expectancy Charts (pages 199 or 200).
6. Every ball screw has a rotation speed limit, which is the point of
excessive vibration/harmonics in the screw. The critical speed
is dependent on the end support configuration. Calculate the
Critical Screw Speed of the chosen ball screw (page 193) or use
the Acceptable Speed Chart (page 198) to determine the critical
speed.
7. If the load, life and speed calculations confirm that the selected
ball screw assembly meets or exceeds the design requirements,
then proceed to the next step. If not… Larger diameter screws
will increase the load capacity and increase the speed rating.
Smaller lead screws will decrease the linear speed (assuming
constant input motor speed), increase the motor speed
(assuming constant linear speed), and decrease the input torque
required. Higher lead screws will increase the linear speed
(assuming constant input motor speed), decrease the input motor
speed (assuming constant linear speed), and increase the input
torque required. Repeat steps 3 thru 5 until the correct solution is
obtained.
8. Determine how the ball nut will interface into your application.
A ball nut flange is the typical method of attaching the ball nut
to the load. Threaded ball nuts and cylindrical ball nuts are
alternative ways to provide the interface.
9. Additional design considerations and features are also available.
Preloaded ball nuts are available to eliminate system backlash
and increase stiffness. Wiper kits to protect the assembly from
contaminants and to contain lubrication are standard on some
units and optional on most others. Bearing supports and end
machining are also available as options for most ball screws.
10. The final considerations are system mounting and lubrication.
The ball nut should be loaded axially only as any radial loading
significantly reduces the performance of the assembly (page
196). The assembly should also be properly aligned with the
drive system, bearing supports, and load to achieve optimal
performance and life (page 196). The ball screw assembly should
never be run without proper lubrication. Many lubricants are
available depending on the application and environment (page
196).
Note: Application and customer service support is available to assist
in the selection of your ball screw assembly. Please contact your
local Thomson representative or the customer support center
(1-540-633-3549 — TCS) for any additional assistance.
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Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Inch Series Ball Screws
Ball Screw Assembly Selection Example:
6. Determine Critical Speed
From Catalog (page 86): Screw Root Diameter is 1.85 in.
Inputs:
Load: 30,000
lb. Compression Maximum
10,000 lb. dynamic
Linear Speed: 200 in./min.
Input Speed: 400 rpm
Travel: 85 in.
Life: 2 x 106 inches
From Equation (page 193): .8 x 1.47 x 4.76 x 106 x
Verified via Chart (page 198)
7. Design Verification
OK per load, speed and life.
8. Load Interface
Flanged connection preferred.
2. End Supports (page 197)
Fixed/Supported
3. Determine Screw Diameter
From Chart (page 201): Ø2.000 in.
2.0 x 1.405 x 107 x dr4
(85)2
therefore, dr = 1.762 in.
200 in./min.
400 rpm
therefore, Lead = .500 in.
5. Determine Life
From Catalog (page 83): Dynamic Load = 21,306 lbs.
From Equation (page 192): Life (inches) =
therefore, Life = 9.7 x 106 inches
9. Additional Requirements
• Wipers required
• Bearing Supports required
• End Machining needed
• Right Hand Thread
• Carbon Steel
10. Mounting and Lubrication
System will require motor interface and linear rails for alignment.
TriGel 450R
4. Determine Lead (page 192)
Lead =
l2
therefore, Speed = 1,433 rpm
1. Accuracy (pages 194 and 195)
No Preload and Standard Rolled (±.004 in./12 in.)
From Equation (page 193): 30,000 / .8 =
dr
[
21,306
10,000
Product Selection (page 81):
]
3
x 106
Ball Nut: P/N 7833235
Ball Screw: P/N 7820600
Wiper Kit: P/N 5702659 (included)
Flange: P/N 5707574
Verified via Chart (page 199)
www.thomsonlinear.com
191
Engineering Guidelines for Inch Series Ball Screws
Design Formulas
These formulas allow you to calculate a number of important factors which govern the application of Thomson ball screws.
1. Ball Screw Life (L)
The ball screw assembly’s useful life will vary according to load
and speed. Life is typically rated at 90% confidence, L10 (which
represents time at which 90% of assemblies still perform).
Simple loading profile (1)
F1
n3
q%
100
neq [min –1 ] =
n
i =1
F m3
q%
q3
q2
q1
q3
q2
q1
qi
100
Modified Life
L 10 inches =
L h10 hours =
Feq [lbs.] =
n
F i3 x
i =1
q2
q1
100
ni x
F eq
F 1min
F
n
q%
F3
F2
[lbs.]
[RPM]
F eq
F m2
F m1
F 1max
[lbs.]
n2
n eq
Simple loading profile (2)
F
Simple rotational speed profile
Functional life should be determined by approximating equivalent
rotational speed and loading force over typical performance
cycles.
q3
100
q
ni
x i
neq 100
1/3
Feq [lbs.] =
n
F mi3 x
i =1
q
ni
x i
neq 100
1/3
Parameters:
Cam
Feq
3
x 10 6
neq
= T ravel Rate (inches/min)
Feq
= equivalent operating load [lbs.]
Cam
= dynamic load rating [lbs.]
(see product detail pages)
(Based on 1.0 million inches)
L 10
n eq x 60
2. Rotational Speed Required for a Specific Linear Velocity
n=
Travel Rate (in. x min.-1)
Lead (in.)
n = rpm
3. Machine Service Life
After ball screw life (L) is calculated, apply it to the following formula to determine machine service life.
Lh10 [hours]
(machine
operating
hours)
•
(days/year)
• ball screw operating hours
Machine Service Life (in years) =
machine operating hours
(
192
)
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Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Inch Series Ball Screws
4. Torque
Feq x P
a. Driving torque: Td (lbf-in.) =
2pe
b. Backdrive torque: Tb (lbf-in.) =
Feq x P x e
2p
= 0.177 x Feq x P
= 0.143 x Feq x P
= Equivalent Operating Load (lbf)
Feq
P
= Lead (in.)
e
= Efficiency = 0.90
Td
= Driving Torque (lbf-in.)
Tb
= Backdrive Torque (lbf-in.)
1 lbf-in. = 0.113 (N•m)
(conversion of linear to rotational motion)
5. Power
n
Feq x P x n
Feq x P
Pd (hp) = (2p) e x 6.3021 x 104 = 3.564 x 105
Pd = Power (hp)
n
= rpm
1 hp = 746 W
6. Permissible Rotational Speed
The permissible rotational speed depends on two factors: critical screw speed and critical nut speed.
6a. Critical Screw Speed
The critical screw speed is related to the natural frequency of the screw shaft. Exceeding this value may result in excessive vibration.
The critical screw speed may be found using the following equations or the chart on page 198.
nc = Cs x 4.76 x 106 x
dr
I2
ns = nc x S
= Critical Speed (rpm)
= Safe Drive Speed
= Root Diameter (in.)
= Length between Bearing
Supports (in.)
S = Safety Factor (0.8 maximum)
Cs = End Fixity Factor
nc
ns
dr
I
End Fixity Factor - Critical Screw Speed
End Supports
A
B
C
MAX. L
MAX. L
MAX. L
Cs
One end fixed, one end free
0.36
Both ends supported
1.00
One end fixed, one end supported
1.47
D
Both ends fixed
2.23
MAX. L
6b. Critical Nut Speed
The critical nut speed is related to the velocity of the ball bearings rotating around the screw shaft. Exceeding this value
may result in permanent damage to the ball recirculation components. Thomson recommends a maximum DN value of 3000
for standard tube transfer designs with a lead to diameter ratio less than 2/3. Thomson recommends a maximum DN value of 5250 for
high speed nuts equipped with deflectors.
DN = d0n
where
d0 = nominal shaft diameter (in)
n = rotational speed of shaft (rpm)
7. Permissible Compression Loading
Exceeding the recommended maximum compression force may
result in buckling of the screw shaft.
Fc =
Cs x 1.405 x 10 x dr
I2
7
4
Fs = Fc x S
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Fc
Fs
dr
I
S
Cs
= Critical Buckling Force (lbs.)
= Safe Compression Force (lbs.)
= Root Diameter (in.)
= Max Unsupported Length (in.)
= Safety Factor (0.8 maximum)
= End Fixity Factor
End Fixity Factor - Permissible Compression Loading
End Supports
A
B
C
D
MAX. L
MAX. L
MAX. L
MAX. L
Cs
One end fixed, one end free
0.25
Both ends supported
1.00
One end fixed, one end supported
2.00
Both ends fixed
4.00
193
Engineering Guidelines for Inch Series Ball Screws
Io
= nominal travel
I1
= thread length
Io
= travel deviation
Iu
= useful travel
Ie
= excess travel
C
= travel compensation for useful travel
(std. = 0)
ep
= tolerance for actual mean travel
deviation (the difference between the
maximum and minimum values of the
permissible actual mean travel)
Ie
Iu
Io
C
V 12p
12 in.
ep
ep
Vup
Vup
2πrad
Precision Ball Screws
Maximum error over useful length = ep
I1
Ie
Iu
Ie
12 in.
+
0
Vup = permissible travel variation within
useful travel, Iu
Io
Δ Io
V12p = permissible travel deviation within
12 inch travel
Ie
ep
Differences between Precision and Precision
Plus grades are highlighted in the graph.
Precision grade screws allow greater
cumulative variation over the useful length
of the screw. Precision Plus grade screws
contain accumulation of lead error to provide
precise positioning over the screw’s entire
useful length.
I1
V 12p
Inch ball screws are produced in two main
tolerance classes: Precision and Precision
Plus. Precision grade ball screws are
used in applications requiring only coarse
movement or those utilizing linear feedback
for position location. As such, most Precision
grade screws are provided with nuts having
backlash. Precision Plus grade ball screws
are used where repeatable positioning within
microns is critical, without the use of a linear
feedback device.
Maximum error over useful length = ep + 1/2Vup + C
V 2π p
Accuracy is a measure of how closely a
motion system will approach a command
position. Perfect accuracy, for example,
means that advancing a ball nut a precise
amount from a given point on the screw
always requires exactly the theoretically
predicted number of revolutions.
Precision Plus Ball Screws
Δ Io
Accuracy Classes
ep
-
V2?p = permissible travel deviation within
1 revolution
194
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Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Inch Series Ball Screws
Permissible Travel Variation Over Usable Length
90
PRECISION PLUS - ± .0005 in./12 in.
80
PRECISION - ± .002 in./12 in.
PERMISSIBLE VARIATION (in. x 10-3)
70
60
PRECISION - ± .004 in./12 in.
50
40
30
20
10
0
12
24
36
48
USABLE LENGTH OF BALL SCREW (in.)
60
80
120
Permissible Travel Deviation Vup (in. x 10-3)
Over Screw Length lu (in.)
Tolerance
Class
Lead
Accuracy
V300p
lu =
12
24
36
48
60
80
120
Precision Plus*
±.0005 in./12 in.
Vup (in.)
1
2
3
4
5
6.67
10
Precision
±.002 in./12 in.
Vup (in.)
4
8
12
16
20
26.7
40
Precision*
±.004 in./12 in.
Vup (in.)
8
16
24
32
40
53.3
80
* Standard product tolerances
Preload Types
Double-Nut Adjustable Preload
Skip-Lead Preload
Ph
Ph +
Ph
F
APPLIED
Ph
• The lead is offset within the ball nut to
provide a precise preload.
• Typically used where both repeatability
and high stiffness are required.
• A compression spring is used to axially
load two ball nuts against each other.
• Axial play is present between screw and
nut (typically .002”-.008” depending on
size).
• Typically used for positioning applications
where repeatability is critical.
• Typically used for transport or vertical
applications.
No Preload
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195
Engineering Guidelines for Inch Series Ball Screws
Lubrication Guidelines
Ball screws must be lubricated to operate
properly and achieve the rated life. We
recommend using TriGEL-450R or TriGEL1800RC for lubricating ball screws. Other oils
and greases may be applicable but have not
been evaluated.
The TriGEL grease can be applied directly to
the screw threads near the root of the ball
track. Some ball nut sizes are available with
threaded lube holes for mounting lubrication
fittings. For these ball nuts, the TriGEL grease
can be pumped directly into the nut. Please
refer to the catalog detail views to verify
which ball nuts have the threaded lube
holes. It is recommended to use these nuts
in conjunction with a wiper kit to contain the
lubricant in the body of the nut.
Ball screws may require lubrication frequently
depending on both environmental and
operating conditions. If the lubricant appears
to be dispersed before this point or has
become dry or crusted, the maintenance
interval should be reduced. Before adding
additional grease, wipe the screw clean,
removing the old grease and any particulate
contamination seen on the screw. If oil is
being used, the best results may be obtained
by utilizing a continuous-drip type applicator.
Nut Loading
Axial loading (on nut or screw) is optimal for performance and life.
For applications requiring radial loads, please contact us.
Axial Loading: optimal
Radial Loading: detrimental*
F/2
F
F/2
F
F
* Minimize radial loading to less than 5% of the axial load.
Nut Mounting
Use the following guidelines to achieve optimal performance
Tolerances:
Tolerances:
.0004 in A Precision Plus
.001 in/ft. A
Precision Plus
.0008 in A Precision Rolled
.003 in/ft. A
Precision Rolled
A
A
196
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Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Inch Series Ball Screws
Bearing Support Reference Drawings (End Fixity)
Critical Speed — That condition where the rotary speed of the assembly
sets up harmonic vibrations. (Refer to Figure 1.) These vibrations are the
result of shaft diameter, unsupported length, type of bearing support,
position of the ball nut in the stroke, how the ball nut is mounted, the shaft
or ball nut rpm, etc. (Note: Shaft vibrations may also be caused by a bent
screw or faulty installation alignment.) The four end fixity drawings (A, B,
C, and D) show the bearing configurations for supporting a rotating shaft.
The selection chart for Travel Rate vs. Length on page 198, shows these
same configurations at the bottom of the chart and factors in their effect
on critical shaft speed for the unsupported screw length.
Bearing Support vs. Speed (travel rate or rpm)
A – One end fixed, other end free
MAX. L
(INCHES)
B – Both ends supported
MAX. L
(INCHES)
C – One end fixed, other end supported
Figure 1
MAX. L
(INCHES)
D – Both ends fixed
MAX. L
(INCHES)
Tension Loads — Those loads where the force pulls on the bearing and
its support. (Refer to Figure 2.) Where practical, applications should
be designed to function with the load in tension to achieve the widest
possible selection of screw sizes. Ball screws operating in both tension
and compression may be preloaded between the support bearings or
mounted per the guidelines under Compression Loads.
Bearing Support vs. Compression Load on Screws
A – One end fixed, other end free
LOAD
MAX. L
(INCHES)
B – Both ends supported
LOAD
Figure 2
Compression Loads — Those loads where the force pushes on the
bearing and its support. (Refer to Figure 3.) Compression loads tend to
cause the screw shaft to bend. This normally requires a ball screw with
a larger diameter than one for tension loading only. The four end fixity
drawings (A, B, C and D) show the bearing configurations for supporting a
shaft subject to compression loads. The selection chart for Compression
Load vs. Length, on page 201, shows these same configurations at the
bottom of the chart and factors in their effect on the unsupported length of
the screw for compression loads.
MAX. L
(INCHES)
C – One end fixed, other end supported
LOAD
MAX. L
(INCHES)
D – Both ends fixed
LOAD
Figure 3
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MAX. L
(INCHES)
197
Engineering Guidelines for Inch Series Ball Screws
Acceptable Speed† vs. Length for Screws
10,000
1.500 - .200
1.500 - .250
1.750 - .200
2.000 - .500
2.000 - 1.000
5,000
2.000 - .200
2.250 - .500
2.250 - 1.000
3,000
2.500 - .250
2.500 - .500
2.500 - 1.000
2,000
3.000 - .660
3.000 - 1.500
4.000 - 1.000
500
300
200
0
0•
.20
00
- .2
30
00
•1
.87
50
5- .2
1.1 .000 .20
00
71
.25
0
• 1.
.41 0 •
250
1
3 • .0
- .2
0
1
.00 0 00
0 - .50
• 1.
1.5
1.0 0
250
00
00
- .2
- .4
50
73
• 1.
• 1.
2
50
1.5 500 - .5
00
00
- 1. .500
875 • 1.
• 1. 500
500 - 1.
- 2. 000
000
0.75
1.63
0.75
.20
1.63
.50
0•
0•
.20
0-
.05
7.18
.50
00
1.0
.50
.12
.50
.37
0-
5-
.06
7.18
0•
50
0
5
100
2
MAXIMUM RPM (80% OF CRITICAL SPEED)
1,000
1.1
1.0
20
END SUPPORT TYPE
One end fixed, other end free
A
MAX. L
Both ends supported
B
MAX. L
One end fixed, other end supported
C
Both ends fixed
MAX. L
D
MAX. L
10
42
1056
48
1219
54
60
1371 1524
66
1676
72
78
1828 1981
84
2133
90
2286
96
102
2438 2590
108
2743
114 120
2895 3048
50
60
40
1016 1270 1524
70
1778
80
2032
90
100
2286 2540
110
2794
120 130
3048 3302
140
3556
150
3810
160 170
4064 4318
180
4572
190 200
4826 5080
36
914
61
73
48
1219 1549 1854
85
2159
97
2463
109 121
2768 3073
133
3378
145 158
3683 4013
170
4318
182
4622
194 206
4927 5232
218
5537
230 242
5842 6146
45
1143
75
90
60
1524 1905 2286
105
2667
119
3022
134 149
3403 3784
164
4165
179 194
4546 4927
209
5308
224
5689
239 254
6070 6451
269
6832
284 298
7213 7569
Inches 6
mm
152
12
304
18
457
24
609
Inches 10
mm
254
20
508
30
762
Inches 12
mm
304
24
609
Inches 15
mm
381
30
762
30
762
36
914
Example: Travel rate of 400 rpm.
Unsupported length of 85 in. (2159mm).
End fixity of one end fixed, other end supported.
All screws with curves which pass through or above and to the right of the plotted point are suitable for the example. The acceptable velocities
shown by this graph apply to the screw shaft selected and are not indicative of the velocities attainable of all of the associated ball nut
assemblies. Consult Thomson engineering for high speed applications.
†80% of critical speed
198
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Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Inch Series Ball Screws
Life Expectancy for Precision Ball Screw Assemblies
LOAD FOR
STAINLESS STEEL SCREWS
LOAD FOR
ALLOY STEEL SCREWS
lb.
N
lb.
890,000
200,000
2.250 - 1.000
2.500 - 1.000
4.000-1.000
445,000
100,000
356,000
80,000
267,000
60,000
178,000
40,000
133,500
30,000
89,000
20,000
2.500 - .500
2.000 - 1.000
2.250 - .500
3.000-1.500
3.000 - .660
2.000 - .500
1.500 - .500
1.500 - .473
1.500 - 1.000
1.500 - 2.000
1.500 - 1.875
N
36,000
160,200
18,000
80,100
14,400
64,080
10,800
48,060
7,200
32,040
5,400
24,030
3,600
16,020
1,800
8,010
1,440
6,408
2.500 - .250
1.500 - .250
1.000 - .500
1.171 - .413
44,500
10,000
35,600
8,000
26,700
6,000
1,080
4,806
17,800
4,000
720
3,204
13,350
3,000
540
2,403
8,900
2,000
360
1,602
4,450
3,560
1,000
800
180
144
801
641
2,670
600
100
481
1,780
400
1,335
300
890
200
445
100
356
80
267
60
178
40
134
30
160
18
80
1.000 - .250 (C1)
.500 - .200
14
65
11
48
7
32
5
24
4
16
2
8
.875 - .200 (Preloaded)
80
100
60
40
30
20
8
10
6
.6
.4
.3
.2
.1
.187 - .050 • .187 - .062
.08
.375 - .125 (SC/C1)
.500 - .200 (KW)
.06
.375 - .125 (HC/C2)
4
.375 - .125 (HC/C1)
3
.631 - 1.000
2
.375 - .125 (SC/C2)
1
.631 - .200
.750 - .200 (KW)
.8
.500 - .500 (C1)
.04
10
36
.03
44
240
.02
20
320
54
.01
89
72
.750 - .500 • 1.000 - .250 (C2)
1.000 - 1.000 (Square)
1.150 - .200
.500 - .500 (C2)
1.000 - 1.000 (Round)
.750 - .200
.875 - .200 (Non-Preloaded)
LIFE EXPECTANCY
(1 = 1,000,000 In. = 25,400,000 mm of Travel)
C1 = Single Circuit C2 = Double Circuit SC = Standard Capacity HC = High Capacity
Example: Application life expectancy (total travel) desired is 2 million in. (50.8 million mm).
Normal operating load is 10,000 lb. (44,500 N).
All screws with curves which pass through or are above and to the right of the plotted point are suitable for the example. The suitable dynamic
life expectancies shown in this graph are not to exceed the maximum static load capacity as given in the rating table for the individual ball nut
assembly.
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199
Engineering Guidelines for Inch Series Ball Screws
Life Expectancy for Precision Plus Preloaded Ball Screw Assemblies
N
lb.
445,000
100,000
356,000
80,000
267,000
60,000
2.500-.500
2.250-.500 • 2.000-.500
2.000-1.000
178,000
40,000
133,500
30,000
2.500-.250
2.000-.200
89,000
20,000
44,500
10,000
35,600
8,000
26,700
6,000
17,800
4,000
13,350
3,000
8,900
2,000
4,450
1,000
3,560
800
2,670
600
1,780
400
1,335
300
.875-.200
890
200
.631-.200
1.500-.500
LOAD FOR ALLOY STEEL SCREWS
1.500-.200
1.750-.200
1.500-.250
1.500-1.000
1.250-.250
1.000-.250
1.250-.200 • 1.250-.500
1.150-.200
1.000-.200
.750-.200
500-.200
80
100
60
40
30
20
8
10
6
4
3
2
1
.8
.6
.4
.3
.2
.1
.08
.06
.04
.03
.02
100
.01
445
LIFE EXPECTANCY
(1 = 1,000,000 in. = 25,400,000 mm of Travel)
Example: Application life expectancy (total travel) desired is 2 million in. (50.8 million mm).
Normal operating load is 10,000 lb. (44,500 N).
All screws with curves which pass through or are above and to the right of the plotted point are suitable for the example. The suitable dynamic
life expectancies shown in this graph are not to exceed the maximum static load capacity as given in the rating table for the individual ball nut
assembly.
200
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Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Inch Series Ball Screws
Compression Load vs. Length for Designated Ball Screws
N
lb.
13,350,000 3,000,000
8,900,000 2,000,000
4,450,000 1,000,000
2,225,000
500,000
1,335,000
300,000
890,000
200,000
445,000
100,000
4.00
COMPRESSION LOAD
0-1
222,500
50,000
133,500
30,000
89,000
20,000
44,500
10,000
22,250
5,000
13,350
3,000
8,900
2,000
4,450
1,000
2,225
500
1,335
300
890
200
445
100
.000
3.00
0-.
2
660
2.50 .500 • 3.0
.250
0-1
00 0-.
.000
1.50
500
0
2.50
2.00
0-.
1.75 2.000 200
0-.
• 2.
200 .500 (P
250
rec
• 2.0
- .50
isio
00 0•2
n) •
1.50
.500
.250
0
1.50
(Pre 2.000
- 1.0
.
2
- 1.0
0
cisi
0•1
1.50 0 - 1.
00
00 (
o
n Pl
1.25 0 - .5 000 (P .500
Pre
us)
1.25 0 - .2 00 (P reci - .250
•
2.00 cision)
rec
s
1.15 0 - .2 00 •
i
o
n
0-1
P
0 - . 50 • 1.50 ision
.000
200
1.25 0 - .4 Plus lus)
(Pre
1.
)
0 - . 73 •
cisi
500
1.00 000 - .2
1.50 • 1.500
on P
0 - . 00 •
0-.
- 1.8
lus)
.875
250
5
75 •
00 (
• 1.01.171 - .20
P
rec 1.500
00 - .413
0
isio
.500
n) • - 2.000
• 1.0
1.50
0-1
00 .750
.000
1.00
- .20
0
0•.
750
.631
.
5
- .20
00
0•.
631
-1.0
0
0
.500
- .20
0•.
500
.375
- .50
- .12
0
5
.187
- .05
0•.
187
- .06
2
END SUPPORT TYPE
One end fixed, other end free
A
MAX. L
Inches 5
LOAD mm
127
10
254
15
381
20
508
25
635
30
762
35
889
40
1016
45
1143
50
1270
55
1397
60
1524
65
1651
70
1778
75
1905
80
2032
85
2159
LOAD
Inches 10
mm
254
20
508
30
762
40
1016
50
1270
60
1524
70
1778
80
2032
90
2286
100
2540
110
2794
120
3048
130
3302
140
3556
150
3810
160
4064
170
4318
LOAD
Inches 14
mm
356
28
711
42
1067
57
1448
71
1803
85
2159
99
2515
113
2870
127
3226
141
3581
156
3962
170
4318
184
4674
198
5029
212
5385
226
5740
240
6096
40
1016
60
1524
80
2032
100
2540
120
3048
140
3556
160
4064
180
4572
200
5080
220
5588
240
6096
260
6604
280
7112
300
7620
320
8128
340
8636
Both ends supported
B
MAX. L
One end fixed,
other end supported
C
MAX. L
Both ends fixed
D
MAX. L
LOAD Inches 20
mm
508
Example: Maximum system load is 30,000 lb. (133,500 N).
Length of 85 in. (2159mm).
End fixity of one end fixed, other end supported.
All screws with curves which pass through or above and to the right of the plotted point are suitable for the example.
The suitable compression loads shown in this graph are not to exceed the maximum static load capacity as given in the rating table for the
individual ball nut assembly.
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201
NOTES:
202
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Lead Screws, Ball Screws and Ball Splines
Ball Screws — Metric Series Engineering
Need a quote or have a question about an
application? Contact us in North America at:
Phone: 540-633-3549
www.thomsonlinear.com
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
203
Engineering Guidelines for Metric Series Ball Screws
Selecting a Ball Screw Assembly for Your Application — Metric Series
A ball screw assembly is a mechanical device for translating
rotational motion to linear motion. As well as being able to apply or
withstand high thrust loads, they can do so with minimum internal
friction. They are made to close tolerances and are therefore
suitable for use in situations in which high precision is necessary.
The selection of the correct ball screw assembly for a specific
application is an iterative process to determine the smallest envelope
and most cost-effective solution. Below is a list of the most common
(but not complete) design considerations used to select a ball screw
assembly.
•
•
•
•
•
•
•
•
Compression or Tension Load
Linear Velocity
Positional Accuracy and Repeatability
Required Life Expectancy
Mounting Configuration
Dimensional Constraints
Input Power Requirements
Environmental Condition
At a minimum, the design load, linear velocity, and positional
accuracy should be the known inputs and are used to calculate
the diameter, lead, and load capacity of the ball screw assembly.
Individual ball screw components are then selected based on life,
dimensional constraints, mounting configuration, and environmental
conditions.
The following procedure will take you through the most common
application-based selection of a ball screw assembly. As no two
applications are the same, so the determination process is never the
same.
1. Determine the required positional accuracy and repeatability
that your application requires (page 208). Backlash is the linear
independent motion between the ball screw and the ball nut
and can be controlled by preloading the ball nut (page 209). The
manufacturing process, rolled screws versus ground screws,
dictates the accuracy (page 209).
2. Determine how you plan to mount the ball screw assembly
into your machine (see page 197). The configuration of the end
supports and the travel distance (Max L) will dictate the load and
speed limitations of the ball screw.
3. A ball nut in tension can handle loads up to the rated capacity of
the nut. For a ball nut in compression, calculate the Permissible
Compression Loading (page 207) or use the Compression Loading
Chart (page 212) to select a ball screw diameter that meets or
exceeds your design load.
4. Calculate the lead of the ball screw that will produce the speed
requirement (page 206).
204
5. The ball nut life can then be calculated using the Dynamic Load
Rating (Cam) provided in the catalog detail pages. Since multiple
ball nuts may be available for a given diameter and lead, use the
chart on page 107 to select available styles.
6. Every ball screw has a rotation speed limit, which is the point of
excessive vibration/harmonics in the screw. The critical speed
is dependent on the end support configuration. Calculate the
Critical Screw Speed of the chosen ball screw (page 207) or use
the Acceptable Speed Chart (page 211) to determine the critical
speed.
7. If the load, life and speed calculations confirm that the selected
ball screw assembly meets or exceeds the design requirements,
then proceed to the next step. If not… Larger diameter screws
will increase the load capacity and increase the speed rating.
Smaller lead screws will decrease the linear speed (assuming
constant input motor speed), increase the motor speed
(assuming constant linear speed), and decrease the input torque
required. Higher lead screws will increase the linear speed
(assuming constant input motor speed), decrease the input motor
speed (assuming constant linear speed), and increase the input
torque required. Repeat steps 3 thru 5 until the correct solution is
obtained.
8. Determine how the ball nut will interface into your application.
A ball nut flange is the typical method of attaching the ball nut
to the load. Threaded ball nuts and cylindrical ball nuts are
alternative ways to provide the interface.
9. Additional design considerations and features are also available.
Preloaded ball nuts are available to reduce system backlash and
increase positional accuracy. Wiper kits to protect the assembly
from contaminants and to contain lubrication are standard on
some units and optional on most others. Bearing supports and
end machining are also available as options for all ball screws.
10. The final considerations are system mounting and lubrication.
The ball nut should be loaded axially only as any radial loading
significantly reduces the performance of the assembly (page
210). The assembly should also be properly aligned with the
drive system, bearing supports, and load to achieve optimal
performance (page 210). The ball screw assembly should never
be run without proper lubrication. Many lubricants are available
depending on the application and environment (page 210).
Note: Application and customer service support is available to assist
in the selection of your ball screw assembly. Please contact your
local Thomson representative or the customer support center
(1-540-633-3549 — TCS) for any additional assistance.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Metric Series Ball Screws
Ball Screw Assembly Selection Example:
6. Determine Critical Speed
From Catalog (page 122): Screw Root Diameter is 43.0mm
Inputs:
Load: 1 33,440 N Compression Maximum
44,480 N dynamic
Linear Speed: 5.08 meter/min.
Input Speed: 400 rpm
Travel: 2159 mm
Life: 2.5 x 104 meters
From Equation (page 207): .8 x 1.47 x 1.2 x 106 x
Verified via Chart (page 211)
3. Determine Screw Diameter
From Chart (page 212): Ø50mm
From Equation (page 207): 133,440 / .8 =
1.47 x 9.687 x 104 x dr4
(2159)2
therefore, dr = 44.8mm
4. Determine Lead (pages 206 and 109)
400 rpm
therefore, Lead = 12.7mm, Use 10mm
5. Determine Life
From Catalog (page 122): Dynamic Load = 66,400 N
Life (revolutions) =
[
66,400
44,480
7. Design Verification
OK per load, speed and life.
8. Load Interface
Flanged connection preferred.
2. End Supports (page 197)
Fixed/Supported
5.08 meter/min.
l2
therefore, Speed = 1,301.8 rpm
1. Accuracy (pages 208 and 209)
No Preload and Standard Rolled (±50 µm per 300mm)
Lead =
dr
]
3
9. Additional Requirements
• Wipers required
• Bearing Supports required
• End Machining needed
• Right Hand Thread
• Carbon Steel
10. Mounting and Lubrication
System will require motor interface and linear rails for alignment.
TriGel 450R
Product Selection (page 122):
Ball Nut: P/N 7832818
Ball Screw: P/N 7832817-P5
x 106
therefore, Life = 3.3 x 106 revs (3.3 x 104 meters)
www.thomsonlinear.com
205
Engineering Guidelines for Metric Series Ball Screws
Design Formulas
These formulas allow you to calculate a number of important factors which govern the application of Thomson ball screws.
1. Ball Screw Life (L)
The ball screw assembly’s useful life will vary according to load
and speed. Life is typically rated at 90% confidence, L10 (which
represents time at which 90% of assemblies still perform).
Simple loading profile (1)
n2
n eq
F1
n3
n
q%
q2
100
neq [min –1 ] =
n
i =1
F m3
q%
q3
q2
q1
100
ni x
qi
100
Feq [N] =
Modified Life
L 10 revolutions =
L h10 hours =
F eq
F 1min
q%
q1
q3
q2
q1
F3
F m2
F m1
F 1max
F2
F [N]
[RPM]
F eq
Simple loading profile (2)
F [N]
Simple rotational speed profile
Functional life should be determined by approximating equivalent
rotational speed and loading force over typical performance
cycles.
n
F i3 x
i =1
q3
100
ni
q
x i
neq 100
1/3
Feq [N] =
n
i =1
F mi3 x
ni
q
x i
neq 100
1/3
Parameters:
Cam
Feq
3
x 10 6
L 10
neq
= e quivalent operating rotational
speed [rpm]
Feq
= equivalent operating load [N]
Cam
= dynamic load rating [N]
(see specification tables)
(Based on 1.0 million revolutions)
n eq x 60
2. Rotational Speed Required for a Specific Linear Velocity
n=
Travel Rate (mm x min.-1)
Lead (mm)
n = rpm
3. Machine Service Life
After ball screw life (L) is calculated, apply it to the following formula to determine machine service life.
Lh10 [hours]
•
(days/year)
• ball screw operating hours
(machine
operating
hours)
Machine Service Life (in years) =
machine operating hours
(
206
)
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Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Metric Series Ball Screws
4. Torque
Feq x P
a. Driving torque: Td (N•m) =
2pe
b. Backdrive torque: Tb (N•m) =
Feq x P x e
2p
Feq
P
e
Td
Tb
1 lb-in.
= 1.77 x 10-4 x Feq x P
= 1.43 x 10-4 x Feq x P
= Equivalent Operating Load (N)
= Lead (mm)
= Efficiency = 0.90
= Driving Torque (N•m)
= Backdrive Torque (N•m)
= 0.113 N•m
(conversion of linear to rotational motion)
5. Power
Feq x P
n
Feq x P x n
Pd (W) = (2p) e x 9.546 x 103 = 5.398 x 104
Pd = Power (W)
n
= rpm
1 hp = 746 W
6. Permissible Rotational Speed
The permissible rotational speed depends on two factors: critical screw speed and critical nut speed.
6a. Critical Screw Speed
The critical screw speed is related to the natural frequency of the screw shaft. Exceeding this value may result in excessive vibration.
The critical screw speed may be found using the following equations or the chart on page 209.
nc = Cs x 1.2 x 108 x
dr
I2
ns = nc x S
= Critical Speed (rpm)
= Safe Drive Speed
= Root Diameter (mm)
= Length between Bearing
Supports (mm)
S = Safety Factor (0.8 maximum)
Cs = End Fixity Factor
nc
ns
dr
I
End Fixity Factor - Critical Screw Speed
End Supports
A
B
C
D
MAX. L
MAX. L
MAX. L
MAX. L
Cs
One end fixed, one end free
0.36
Both ends supported
1.00
One end fixed, one end supported
1.47
Both ends fixed
2.23
6b. Critical Nut Speed
The critical nut speed is related to the velocity of the ball bearings rotating around the screw shaft. Exceeding this value
may result in permanent damage to the ball recirculation components. Thomson recommends a maximum DN value of 140,000
for standard internal transfer designs, which encompass the majority of the Metric products. Higher values may be accommodated by
special design (consult with applications engineering).
DN = d0n
where
d0 = nominal shaft diameter (mm)
n = rotational speed of shaft (rpm)
7. Permissible Compression Loading
Exceeding the recommended maximum compression force may
result in buckling of the screw shaft.
Fc =
Cs x 9.687 x 104 x dr4
I2
Fs = Fc x S
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End Fixity Factor - Permissible Compression Loading
End Supports
A
B
Fc
Fs
dr
I
S
Cs
= Critical Buckling Force (N)
= Safe Compression Force (N)
= Root Diameter (mm)
= Max Unsupported Length (mm)
= Safety Factor (0.8 maximum)
= End Fixity Factor
C
D
MAX. L
MAX. L
MAX. L
MAX. L
Cs
One end fixed, one end free
0.25
Both ends supported
1.00
One end fixed, one end supported
2.00
Both ends fixed
4.00
207
Engineering Guidelines for Metric Series Ball Screws
I1
Ie
Iu
Io
300mm
Ie
= excess travel
C
= travel compensation for useful travel
(std. = 0)
ep
= tolerance for actual mean travel
deviation (the difference between the
maximum and minimum values of the
permissible actual mean travel)
Vup = permissible travel variation within
useful travel, Iu
V300p = permissible travel deviation within
300mm travel
V2πp = permissible travel deviation within
1 revolution
208
C
Vup
300mm
Maximum
error over
useful length
= ep
ep
= useful travel
—
Ie
Io
ep
Iu
Iu
0
= travel deviation
Ie
V 300p
Io
T
Transport
Class Ball
Screws
+
= thread length
I1
-
I1
2πrad
∅I o
= nominal travel
ep
ep
Vup
Differences between P & T grades are
highlighted in the graph. T grade transport
screws allow greater cumulative variation
over the useful length of the screw. P grade
positioning screws contain accumulation of
lead error to provide precise positioning over
the screw’s entire useful length.
Io
Ie
V 300p
Metric ball screws are produced in two
main tolerance classes: T (transport) and P
(positioning). Transport grade ball screws are
used in applications requiring only coarse
movement or those utilizing linear feedback
for position location. As such, most transport
grade screws are provided with nuts having
backlash (T7 grade screws cannot be
supplied with preloaded nuts). Precision
grade ball screws are used where repeatable
positioning within microns is critical, without
the use of a linear feedback device.
Maximum error over useful length = ep + 1/2Vup + C
V 2π p
Accuracy is a measure of how closely a
motion system will approach a command
position. Perfect accuracy, for example,
means that advancing a ball nut a precise
amount from a given point on the screw
always requires exactly the theoretically
predicted number of revolutions.
P — Positioning Class Ball Screws
Δ Io
Accuracy Classes
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Metric Series Ball Screws
Permissible Travel Variation Over Usable Length
1800
PERMISSIBLE VARIATION [µm]
1500
P3
P5
T5
T7
1200
900
600
300
0
0
315mm
1m
2m
3m
4m
5m
USABLE LENGTH OF BALL SCREW
Lead
Accuracy
V300p
Tolerance
Class
P3
±12 µm/300mm
P5
±23 µm/300mm
T5
T7
lu
>
(mm)
?
315
400
Permissible Travel Deviation Vup (µm)
Over Screw Length lu (mm)
500
630
800 1000 1250 1600
2000
2500
3150
4000
5000
315
400
500
630
800
1000
1250
1600
2000
2500
3150
4000
5000
6300
ep (µm)
12
13
15
16
18
21
24
29
35
41
50
62
76
—
Vup (µm)
12
12
13
14
16
17
19
22
25
29
34
41
49
—
ep (µm)
23
25
27
30
35
40
46
54
65
77
93
115
140
170
Vup (µm)
23
25
26
29
31
35
39
44
51
59
69
82
99
119
±23 µm/300mm
Vup (µm)
23
=2 x lu/300 x V300p
±52 µm/300mm
Vup (µm)
52
=2 x lu/300 x V300p
Preload Types
Precise Preload (Type Z0)
(Available with FL nut only)
Ph
Ph +
Ph
Preload (Type Z1)
Ph
• The lead is offset within the
ball nut to provide a precise
preload.
• The preload is approximately
10% of dynamic load capacity,
but can range from 2% to 13%
as specified by customers.
• Typically used where both
repeatability and high stiffness
are required.
www.thomsonlinear.com
• Oversized balls slightly larger
than the ball groove space are
used to provide zero backlash
between the screw and nut.
• The preload is approximately
1% to 2% of dynamic load
capacity.
No Preload (Type Z2)
No Preload (Type Z3)
(Standard lash)
(Minimum lash)
F
APPLIED
F
APPLIED
• Axial play is present between
screw and nut.
• Axial play is present between
screw and nut (held to .05mm
maximum).
• Typically used for transport or
vertical applications.
• Typically used for transport or
vertical applications.
• Typically used for positioning
applications where higher-level
repeatability is desired.
209
Engineering Guidelines for Metric Series Ball Screws
Lubrication Guidelines
Ball screws must be lubricated to operate
properly and achieve the rated life. We
recommend using TriGEL-450R or TriGEL1800RC for lubricating ball screws. Other oils
and greases may be applicable but have not
been evaluated.
The TriGEL grease can be applied directly to
the screw threads near the root of the ball
track. Some ball nut sizes are available with
threaded lube holes for mounting lubrication
fittings. For these ball nuts, the TriGEL grease
can be pumped directly into the nut. Please
refer to the catalog detail views to verify
which ball nuts have the threaded lube
holes. It is recommended to use these nuts
in conjunction with a wiper kit to contain the
lubricant in the body of the nut.
Ball screws may require lubrication frequently
frequently depending on both environmental
and operating conditions. If the lubricant
appears to be dispersed before this point or
has become dry or crusted, the maintenance
interval should be reduced. Before adding
additional grease, wipe the screw clean,
removing the old grease and any particulate
contamination seen on the screw. If oil is
being used, the best results may be obtained
by utilizing a continuous-drip type applicator.
Nut Loading
Axial loading (on nut or screw) is optimal for performance and life.
For applications requiring radial loads, please contact us.
Axial Loading: optimal
Radial Loading: detrimental*
F/2
F
F/2
F
F
* Minimize radial loading to less than 5% of the axial load.
Nut Mounting
Use the following guidelines to achieve optimal performance.
(All units are mm)
Tolerances:
.01mm
.02mm
A P3
A P5, T5, T7
Tolerances:
.01mm/100mm A P3
.02mm/100mm A P5, T5, T7
A
A
210
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Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Metric Series Ball Screws
Acceptable Speed† vs. Length for Screws
10,000
5,000
3,000
2,000
ROTATIONAL SPEED (RPM)
1,000
500
300
80
63
200
50
40
100
4
5
6
8
10
12, 13
14, 16
20
25
32
50
30
20
10
Example:
rate of
END SUPPORT TYPE
One end fixed, other end free
A
36
914
Inches 6
152
mm
12
304
18
457
24
609
42
1056
48
60
54
1219 1371 1524
72
66
1676 1828
84
78
1981 2133
102
96
90
2286 2438 2590
108 114 120
2743 2895 3048
Inches 10
254
mm
20
508
30
762
60
70
50
40
1016 1270 1524 1778
80
100
90
2032 2286 2540
110 120
2794 3048
130 140
3302 3556
150 160 170
3810 4064 4318
180 190 200
4572 4826 5080
Inches 12
304
mm
24
609
36
914
73
85
61
48
1219 1549 1854 2159
97
109 121
2463 2768 3073
133 145
3378 3683
158 170
4013 4318
182 194 206
4622 4927 5232
218 230 242
5537 5842 6146
Inches 15
381
mm
30
762
45
1143
90
105
75
60
1524 1905 2286 2667
119 134 149
3022 3403 3784
164 179
4165 4546
194 209
4927 5308
224 239 254
5689 6070 6451
269 284 298
6832 7213 7569
30
762
Travel
400 rpm.
MAX. L
Both ends supported
B
MAX. L
One end fixed, other end supported
C
Both ends fixed
MAX. L
D
MAX. L
Unsupported length of 85 in. (2159mm).
End fixity of one end fixed, other end supported.
All screws with curves which pass through or above and to the right of the plotted point are suitable for the example. The acceptable velocities
shown by this graph apply to the screw shaft selected and are not indicative of the velocities attainable of all of the associated ball nut
assemblies. Consult Thomson engineering for high speed applications.
†80% of critical speed
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211
Engineering Guidelines for Metric Series Ball Screws
Compression Load vs. Length for Designated Ball Screws
N
lb.
44,500,000 10,000,000
5,000,000
13,350,000
3,000,000
8,900,000
2,000,000
4,450,000
1,000,000
2,225,000
500,000
1,335,000
300,000
890,000
200,000
445,000
100,000
222,500
50,000
133,500
30,000
89,000
20,000
COMPRESSION LOAD
22,250,000
80
44,500
63
10,000
22,250
5,000
13,350
3,000
8,900
2,000
4,450
1,000
2,225
500
1,335
300
890
200
445
100
32x5
32x312x32
0
50
50x1 x20
0
4
40 0x5
40x1x20
0
25
20
16
14
13
12
10
8
6
4
5
END SUPPORT TYPE
One end fixed, other end free
A
MAX. L
Inches 5
LOAD mm
127
10
254
15
381
20
508
25
635
30
762
35
889
40
1016
45
1143
50
1270
55
1397
60
1524
65
1651
70
1778
75
1905
80
2032
85
2159
LOAD
Inches 10
mm
254
20
508
30
762
40
1016
50
1270
60
1524
70
1778
80
2032
90
2286
100
2540
110
2794
120
3048
130
3302
140
3556
150
3810
160
4064
170
4318
LOAD
Inches 14
mm
356
28
711
42
1067
57
1448
71
1803
85
2159
99
2515
113
2870
127
3226
141
3581
156
3962
170
4318
184
4674
198
5029
212
5385
226
5740
240
6096
40
1016
60
1524
80
2032
100
2540
120
3048
140
3556
160
4064
180
4572
200
5080
220
5588
240
6096
260
6604
280
7112
300
7620
320
8128
340
8636
Both ends supported
B
MAX. L
One end fixed,
other end supported
C
MAX. L
Both ends fixed
D
MAX. L
LOAD Inches 20
mm
508
Example: Maximum system load is 30,000 lb. (133,500 N).
Length of 85 in. (2159mm).
End fixity of one end fixed, other end supported.
All screws with curves which pass through or above and to the right of the plotted point are suitable for the example.
The suitable compression loads shown in this graph are not to exceed the maximum static load capacity as given in the rating table for the
individual ball nut assembly.
212
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Ball Splines — Engineering
Need a quote or have a question about an
application? Contact us in North America at:
Phone: 540-633-3549
www.thomsonlinear.com
Fax:
540-639-4162
Email:
thomson@thomsonlinear.com
213
Engineering Guidelines for Ball Splines
Selection Procedures
Applications Analysis — Follow this step-by-step procedure to
determine the ball spline best suited for your application. It is
suggested you analyze the requirements of your application using a
work pad for easy reference.
Maximum Static Load — Determine the maximum static torque
loads encountered in the application. This must include shock loads.
Using the table on page 140, note the ball spline sizes and race
combinations which have capacities in excess of the application
requirements.
Rated Load — In many ball spline applications, freedom of axial
movement is essential while actual travel is negligible. For example,
a spline used on a jet engine accessory gear box drive moves
less than 1/10 inch. This axial freedom is essential to eliminate
damaging stress forces to the engine and gear box housings, but
total daily travel may be less than 2 inches. Select the size and
race combination with a rated load that will meet your application
requirement from the table.
Life Expectancy — On occasion, it is important to plan for a specific
life expectancy. These applications usually are designed to use
the smallest practical ball spline at the maximum possible torque
or where considerable translation occurs. For these applications,
use the Life Expectancy chart on page 215. Contact Thomson if light
weight and small size are considerations.
Design Formulas
Life Ratings
L 10 in. =
x 10 6
T
T
= d ynamic equivalent torque
(A constant torque under the
influence of which a ball spline
assembly would have the same
life as it will attain under the
actual applied torque condition.)
Cam
= dynamic load rating [lbs.]
(based on 1.0 million inches)
nc = Cs x 4.76 x 106 x
ns = nc x S
• life expectancy — total inches of travel desired during the life of
the application
• application load — the normal operating load for the application in
inch-pounds (Newton-millimeters) of torque
dr
I2
= Critical Speed (rpm)
= Safe Drive Speed
= Root Diameter (in.)
= Length between Bearing
Supports (in.)
S = Safety Factor (0.8 maximum)
Cs = End Fixity Factor
nc
ns
dr
I
End Fixity Factor
End Supports
Speed vs. Length — Determine the following:
• Speed — determine the maximum revolutions per minute (rpm)
required
A
• Maximum length — determine the maximum unsupported length
B
214
3
Parameters:
Determine the following:
• End fixity — determine the type of configuration (refer to the
Bearing Support reference drawings on page 197). Quick Mount
bearing support blocks can be used on diameters 5/8 inch through
2-1/2 inch. Using the example at the bottom of the Speed
vs. Length chart on page 216, plot the point for your specific
application.
Cam
C
D
MAX. L
MAX. L
MAX. L
MAX. L
Cs
One end fixed, one end free
0.36
Both ends supported
1.00
One end fixed, one end supported
1.47
Both ends fixed
2.23
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Engineering Guidelines for Ball Splines
Life Expectancy for Precision Ball Splines
N-mm
lb.-in.
11,300,000
100,000
9,040,000
80,000
6,780,000
60,000
4,520,000
40,000
3,390,000
30,000
2,260,000
20,000
6.000-8-.500
4.062-6-.375
2.500-6-.375
OPERATING TORQUE
2.000-6-.312
1,130,000
10,000
904,000
8,000
678,000
6,000
452,000
4,000
339,000
3,000
226,000
2,000
113,000
1,000
90,400
800
67,800
600
45,200
400
33,900
300
22,600
200
2.500-3-.375
2.000-3-.312 • 1.500-6-.250
1.500-3-.250
11,300
100
9,040
80
6,780
60
4,520
40
3,390
30
.625-6-.187
2,260
20
.625-3-.187
1,130
10
1.000-6-.187
1.000-3-.187
800
1000
600
400
300
200
80
100
60
40
30
20
8
10
6
4
3
2
1
.8
.6
.4
.3
.2
.1
.375-3-.156
LIFE EXPECTANCY
(1 = 1,000,000 in.= 25,400,000 mm of Travel)
Example: Desired life of 2 million in.
(50.8 million mm).
Operating torque is 200 lb-in.
(22.6 N · mm)
All splines with curves which pass through or are above and to the right of the plotted point are suitable for the example.
www.thomsonlinear.com
215
Engineering Guidelines for Ball Splines
Speed vs. Length for Precision Ball Splines
10,000
6.000-8-.500
5,000
4.062-6-.375
2.500-3-.375 • 2.500-6-.375
3,000
2.000-3-.312 • 2.000-6-.312
1.500-3-.250 • 1.500-6-.250
2,000
1,000
SPEED RPM
500
300
200
1.000-3-187 • 1.000-6-.187
.625-6-.187 • .625-3-.187
.375-3-.156
100
50
30
20
10
END SUPPORT TYPE
One end fixed, other end free
A
Inches 6
mm
152
12
304
18
457
24
609
30
762
36
914
42
1056
48
1219
54
1371
60
1524
66
1676
72
1828
78
1981
84
2133
90
2286
96
2438
102
2590
Inches 10
mm
254
20
508
30
762
40
1016
50
1270
60
1524
70
1778
80
2032
90
2286
100
2743
110
2794
120
3048
130
3302
140
3556
150
3810
160
4064
170
4318
Inches 12
mm
304
24
609
36
914
48
1219
61
1549
73
1854
85
2159
97
2463
109
2768
121
3073
133
3378
145
3683
158
4013
170
4318
182
4622
194
4927
206
5232
Inches 15
mm
381
30
762
45
1143
60
1524
75
1905
90
2286
105
2667
119
3022
134
3403
149
3784
164
4165
179
4546
194
4927
209
5308
224
5689
239
6070
254
6451
MAX. L
Both ends supported
B
MAX. L
One end fixed, other end supported
C
MAX. L
Both ends fixed
D
MAX. L
Example: Maximum shaft speed is 800 rpm.
Unsupported length is 60 in. (1524mm).
End fixity is both ends supported.
All splines with curves which pass through or are above and to the right of the plotted point are suitable for the example.
216
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Installation
This section is organized so that the installer can follow step by
step instructions to prepare and install a new ball screw assembly.
Ball screw assemblies are offered in several variations, so all of
the installation steps may not be followed for a specific type. The
Glossary of Terms will define any terms with which the user may not
be familiar. All product specifications and dimensions are found in
this catalog.
Installation Can Be Completed in Six Easy Steps
STEP ONE:
Mounting the Flange to the Ball Nut
STEP TWO: Mount Front End of Wiper to the Screw (brush type
wipers only)
STEP THREE: Install Ball Nut onto the Ball Screw
STEP FOUR: Complete Installation of the Wiper Kit
STEP FIVE:
Lubricate the Ball Nut and Screw
STEP SIX:
Install Ball Screw Assembly into Your Machine
STEP ONE: Mounting the Flange to the Ball Nut
If flange is not used, proceed to STEP TWO.
Preparation of Ball Nut
A ball nut flange is the recommended means of attaching a ball nut
to a load. A flange should be tightened firmly against the ball nut
on its threads and secured by one of the methods described below.
Take care not to grasp and damage the return tubes when tightening
the flange. Ball circulation will be impaired if the return tubes are
damaged.
Flanges are provided loose from the factory unless otherwise
specified. The standard method to secure the flange to the ball
nut is shown in Method “A” (retain with pins). Smaller ball screw
assemblies may be assembled using Method “B” (retain with set
screws). Flanges can be pinned at the factory upon request.
Ball screws are delivered to the user in one of four ways:
Flange Installation Method A
1. Finished ends with assembled ball nut, ready to mount in a
machine. No further preparation is required.
2. Screw ends machined and ball nut supplied on an arbor ready for
transfer.
3. Screw cut and annealed ready for machining and ball nut supplied
on an arbor ready for transfer.
4. Hardened screw in bulk length with ball nut supplied on an arbor
ready for transfer.
Retain with pins (recommended)
1. Remove the ball nut from the transfer arbor. Catch and save the
balls for reassembly.
2. Apply Loctite grade 271 (red in color) to the ball nut
V-threads.
3. Thread the flange onto the ball nut until it contacts the ball nut
shoulder.
4. Loosen the flange until the required machine bolts can be inserted
into the flange mounting holes without interfering with the ball
return guides (see Figure 1).
5. Drill two holes approximately 90° apart, as shown in Figure 1.
Note: the pin circle diameter is also the V-thread pitch diameter.
6. Press two groove type pins to the bottom of the drilled holes.
7. Stake the pin holes to prevent the pins from disengaging.
8. Remove all chips from the ball nut, and clean it thoroughly to
remove potential contaminants.
9. Reassemble the flanged ball nut and components on the transfer
arbor or ball screw.
Ball nuts are delivered without flanges attached and without
lubrication. Ball screw assemblies must not be run without proper
lubrication.
GROOVE TYPE PINS
BALL NUT SHOULDER
90°
BALL NUT V-THREAD
(APPLY LOCTITE)
STAKE AFTER
INSERTING
PINS
BALL RETURN
GUIDES
MAKE SURE MACHINE BOLT CLEARS
BALL RETURN GUIDE AREA
PIN CIRCLE DIAMETER
(V-THREAD PITCH DIAMETER)
Figure 1
www.thomsonlinear.com
217
Installation
Flange Installation Method B
RADIAL THREADED HOLE
Retain with set screws (optional for flanges with set screws)
1. Apply Loctite grade 271 (red in color) to the ball nut V-threads.
2. Thread the flange onto the ball nut until it contacts the ball nut
shoulder.
3. Loosen the flange until the required machine bolts can be inserted
into the flange mounting holes without interfering with the ball
return guides (see Figure 2).
4. Apply Loctite grade 271 (red in color) to the radial threaded hole in
the flange.
5. Select a cup point set screw with a length of one half the
threaded hole depth. Install two set screws, tightening to the
manufacturer’s recommended torque (see Figure 2).
BALL NUT SHOULDER
(2) CUP POINT
SET SCREWS
(APPLY LOCTITE)
BALL RETURN GUIDE
BALL NUT
V-THREADS
(APPLY LOCTITE)
MAKE SURE MACHINE BOLT CLEARS
BALL RETURN GUIDE AREA
Figure 2
Method B Dimensions
V-Thread
.664-32 UNS
0.6875-24 UNEF
0.9375-16 UN
0.9375-16 UN
0.9375-16 UN
0.9375-16 UN
1.173-18 UNS
1.125-18 UNEF
1.250-18 UNEF
1.173-18 UNS
1.250-16 UN
1.375-16 UN
1.563-18 UNEF
1.563-18 UNEF
1.563-18 UNEF
1.625-20 UN
1.967-18 UNS
1.967-18 UNS
2.548-18 UNS
2.360-18 UNS
2.250-20 UN
2.250-20 UN
2.250-20 UN
3.000-12 UN
3.000-12 UN
3.137-12 UNS
3.137-12 UNS
3.340-12 UNS
3.625-12 UN
3.625-12 UN
4.325-12 UNS
4.325-12 UNS
5.497-12 UNS
218
Reference
BCD
Lead
0.375
0.375
0.500
0.500
0.631
0.631
0.750
0.750
0.750
0.750
0.750
0.875
1.000
1.000
1.000
1.150
1.171
1.500
1.500
1.500
1.500
1.500
1.500
2.000
2.000
2.250
2.250
2.500
2.500
2.500
3.000
3.000
4.000
0.125
0.125
0.200
0.500
0.200
1.000
0.200
0.200
0.200
0.500
0.500
0.200
0.250
0.500
1.000
0.200
0.413
0.250
0.473
0.500
1.000
1.875
2.000
0.500
1.000
0.500
1.000
0.250
0.500
1.000
0.660
1.500
1.000
Ball
Diameter
0.063
0.063
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.156
0.156
0.125
0.156
0.156
0.156
0.125
0.281
0.156
0.344
0.312
0.344
0.281
0.281
0.375
0.375
0.375
0.375
0.156
0.375
0.375
0.500
0.500
0.625
Pin Circle
Diameter
Drill
Diameter
Pin
Depth
Diameter
Length
Use Method A — Retain with set screws
1.332
1.527
1.527
1.527
1.591
1.929
1.929
2.509
2.337
2.215
2.215
2.215
2.944
2.944
3.080
3.080
3.283
3.443
3.443
4.267
4.267
5.439
0.094
0.125
0.125
0.125
0.094
0.188
0.125
0.250
0.250
0.250
0.188
0.188
0.250
0.250
0.250
0.250
0.125
0.250
0.250
0.250
0.250
0.375
0.312
0.438
0.438
0.438
0.312
0.438
0.312
0.438
0.438
0.562
0.562
0.562
1.000
1.000
1.000
1.000
0.750
1.000
1.000
1.188
1.188
1.250
0.094
0.125
0.125
0.125
0.094
0.188
0.125
0.250
0.250
0.250
0.188
0.188
0.250
0.250
0.250
0.250
0.125
0.250
0.250
0.250
0.250
0.375
0.250
0.375
0.375
0.375
0.250
0.375
0.250
0.375
0.375
0.500
0.500
0.500
0.625
0.625
0.625
0.625
0.500
0.625
0.625
0.750
0.750
0.750
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Installation
STEP TWO: Mount Front End of Wiper to the Screw
If wiper is not included or integral to ball nut, then proceed to
STEP THREE.
Wipers
Wipers are available for most units as optional items. Precision inch
ball nuts typically do not include wipers but they may be added as an
option. Precision Plus inch ball nuts and all metric ball nuts include
wipers as standard. Wipers generally fall into two categories: one
style is internally mounted inside the extreme ends of the ball nut; the
other is a wiper and retainer kit combination mounted on the exterior
end of the ball nut. In some applications, one or the other may be
used or a combination of both. Visual inspection will reveal the style
used.
Brush Wiper
To obtain maximum service from a ball screw assembly, the ball
nut should be protected from metal chips and dirt. Foreign material
entering the ball nut may be rolled into the ball race, causing high
localized loading, abrasion and spalling of the balls, resulting in
premature failure. The wiper helps prohibit contaminants from
entering the nut as it translates along the screw. These wipers are
effective in most industrial applications.
For wipers with flange retainer: 1) Select end of screw to install ball
nut (typically end with shortest journal length). 2) Orient ball nut with
flange facing desired direction. 3) Install wiper holder and wiper
for leading end of ball nut to ball screw. Then follow the ball nut
installation procedure, STEP THREE, page 220. 4) Install wiper holder
onto trailing end of ball nut once the ball nut is installed on the ball
screw.
Wiper with Flange Retainer
Internal Snap Ring
Typical Methods of Attaching Wipers to V-Thread End
COUNTERBORED FLANGE
ADAPTER PLATE
STAMPED FLANGE
RETAINER PLATE
COUNTERBORED
WORK PIECE FOR
FLANGE ATTACHMENT
THREADED WORK PIECE
FOR BALL NUT ATTACHMENT
WITH SNAP RING RETAINER
THREADED WORK PIECE
FOR BALL NUT ATTACHMENT
Wiper without Flange Retainer
www.thomsonlinear.com
219
Installation
STEP THREE: Install Ball Nut onto the Ball Screw
Installing Ball Nut onto Ball Screw
Each ball nut is completely assembled and loaded with bearing balls
before it leaves the factory. The balls are held in place by a shipping
arbor/mandrel.
CAUTION: If the arbor is removed without turning the nut onto the
screw, the bearing balls will fall out of the nut and will require
reloading.
Method A: Install Ball Nut without Preload onto Ball Screw
Method B: Install Ball Nut with Preload onto Ball Screw Using Gap
Technique (required on part numbers listed in Table B)
Method C: Install Ball Nut with Preload onto Ball Screw Using Turn
Technique (required on part numbers listed in Table C)
Method A: Install Ball Nut without Preload onto Ball Screw
To transfer the ball nut to the screw, proceed as follows:
1. Remove any ball nut retainer from the arbor. Hold the arbor firmly
end to end with the screw. Make certain the arbor end is centered
on the screw shaft end. (See Figure 3.)
Notes regarding installation of Preloaded Ball Nuts
(Applicable to Methods B and C):
Installing Preloaded Double Nut
Preloaded Ball Screws (Double Nut Design)
General Description: The two primary reasons for preloading ball
screws are to: eliminate backlash and obtain maximum system
stiffness.
Preload for units having a compensating spring feature should
be established in excess of the normal operating load whenever
possible. Further adjustment is not normally required during the life
expectancy. Units of this type are used in many specific applications
requiring special considerations.
Transferring Ball Nuts from Arbor
Double nut design ball nuts are supplied on arbors. Care must be
used not to lose any of the bearing balls, or trap balls between
circuits when rotating the ball nut onto the screw.
Method B: Install Ball Nut with Preload onto Ball Screw
Using Gap Technique (required on part numbers listed in
Table B)
Use this procedure for assemblies having part numbers indicated in
Table B.
Preloading Double Nuts Using Gap Technique
Figure 3
2. Slide the ball nut down to the screw shaft and rotate to the thread
until you feel the balls drop into the screw thread. Then rotate with
the screw thread until the ball nut completely clears the end of the
screw shaft adjacent to the arbor. (See Figure 4.)
Figure 4
3. Remove the arbor. (See Figure 5.)
Figure 5
To transfer the ball nut to the arbor, reverse these steps.
CAUTION: When end machining makes it impossible to bring the
arbor adjacent to the shaft ball grooves, wrap the machined portion
with tape to the nominal O.D. of the arbor. The tape will permit the
ball nut to slide over the machined area without the balls dropping
into machined irregularities in the shaft.
CAUTION: Extreme care must be taken to prevent the ball nut
from sliding off the end of the screw shaft during installation and
handling. Temporary stops can be made by wrapping tape around
the shaft ball grooves at each end. Be sure to remove the tape and
any residual adhesive after the ball screw assembly is properly
installed.
220
Ball nuts are transferred from arbor without a preload. Before
preloading these ball nuts, oil the coupling threads, spring washers,
ball nut bearing surfaces and the ball grooves of the screw shaft.
Be sure to keep the ball return tubes of the two ball nuts aligned (see
Figure 6). Also, make sure the coupling tangs line up with the slots in
the ball nut if they have become disengaged.
Position the ball nut midway on the screw shaft. Place retainers on
screw to prevent the ball nut from accidentally running off the screw
shaft. With the ball return tubes facing upwards, tighten the spanner
nut against the spring washer “finger tight”, plus 1/4 turn. Rotate the
screw shaft through several turns in both directions while holding
the ball nut with the ball return tubes on top. Continue to tighten the
spanner nut with spanner or channel locks until the .003” (075mm)
average gap is obtained resulting in the preload as indicated by
the chart. Rotate the screw in both directions several times and
check for smoothness. Be sure the spring washer of the coupling is
centralized (not protruding in any direction). Use a plastic or brass
mallet, if necessary, to help seat the coupling system. Tap lightly.
Recheck torque and re-average gap as necessary.
Check the torque by rotating screw shaft with a torque wrench.
Secure the spanner nut with the set screw(s) provided.
SERRATED NUT
SPRING WASHER
BALL
RETURN
TUBES
1 SERRATION
.003" GAP
Figure 6
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Installation
Table B. Preload Using Gap Technique
Ball Nut
Nominal
Size & Lead
Ball Nut
P/N
Preload
Lbs (Newtons)
at .003” Gap
Torque
In-Lbs (N-mm)
at .003” Gap
.500 x .500
7826767
150 (667)
1.0 (113)
.631 x .200
7820955 / 7820956
7823584
150 (667)
1.0 (113)
.631 x 1.000
7827531
50 (222)
50 (222)
.750 x .500
7826991
220 (979)
1.5 (170)
.875 x .200
7823585/7833677
220 (979)
1.5 (170)
1.000 x .250
5704167 / 5704168
330 (1468)
2.0 (226)
1.000 x .250
7820428
330 (1468)
2.0 (226)
1.000 x .250
7820426
330 (1468)
2.0 (226)
1.000 x .250
7823586
330 (1468)
2.0 (226)
1.000 x 1.000
7829720
330 (1468)
2.0 (226)
1.150 x .200
5704270 / 7820206
7823587
240 (1068)
1.5 (170)
1.500 x .250
5704271 / 7823588
7833234 / 5704573
920 (4092)
5.5 (622)
1.500 x 1.000
5700698
1550 (6894)
10.0 (1130)
1.500 x 1.875
5704272
1550 (6894)
10.0 (1130)
2.250 x .500
7823589
5000 (22240)
30.0 (3390)
2.500 x .250
7823590
1300 (5782)
10.0 (1130)
3.000 x .660
5703045
12400 (55155)
75.0 (8475)
Turn the front nut onto the screw as shown in Figure 10 Insert the
tanged sleeve into position against the front nut with preload springs
oriented as shown in Figure 8.
FRONT NUT
Figure 8. Preload spring orientation.
Insert the slots of the rear nut (lock nut end) into the tangs of the
preload sleeve and turn the rear nut onto the screw. Both nuts now
turn as an assembly with the tangs in full engagement to prevent the
two nuts from rotating separately. The return tubes of the two nuts
should be in line with one another. The adjuster nut must be loose at
this point, not compressing the belleville springs. (See Figure 9.)
REAR NUT
FRONT NUT
Figure 9. Assembly of rear nut to preload spring.
Method C: Install Ball Nut with Preload onto Ball Screw
Using Turn Technique (required on part numbers listed in
Table C)
Use this procedure for assemblies having part numbers indicated in
Table C.
Preloading Double Nuts Using Turn Technique
Turn the locknut onto the V-threads of the rear nut until it shoulders
against the nut (Figure 7). Do not tighten the set screws yet.
Hand turn the locknut until all freeplay is just removed. At this point,
further turning will begin compressing the preload springs and begin
to set the preload force.
Assembly
Transfer the front nut, with flange attached, onto the ball screw as
shown in Figure 10. The nut should be turned onto the screw only far
enough to avoid loss of bearing balls upon removing the mandrel.
REAR NUT
ROTATE
BALLNUT
ON MANDREL
FRONT NUT
Figure 7. Assembly of locknut to rear nut.
Figure 10. Transfer of front nut to screw.
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221
Installation
Method C (Continued)
Bring the rear nut on its mandrel to position for turning onto the
screw. (See Figure 11.)
REAR NUT
FRONT NUT
Figure 11. Positioning rear nut for mounting.
NOTE: Normally the rear nut for preloading is shipped fully assembled
from the factory. If the spring package is not assembled to the rear
nut as shown in Figure 12, review Preload Components Assembly for
assembly instructions.
REAR NUT
FRONT NUT
Setting the Preload
Amount of Preload
Refer to Table C on page 223 for the number of turns, after freeplay is
removed, required for the desired preload. The approximate preload
per rotation is also given for preloads between recommended and
maximum.
Methods of Setting the Preload
1. Small ball screws with light loads may often be set by handturning the adjuster nut to position while preventing rotation of the
ball nuts.
2. Ball screws of medium size often require a spanner wrench to turn
the adjuster nut to position.
3. Large size units sometimes require a spanner wrench with a pipe
extension.
Rotation of the ball nuts during preload setting can be prevented by
securing the flange in a fixture or installing the ball screw in its end
use application.
CAUTION: Clamping the O.D. of the ball nuts in a vise or similar
gripping system to prevent rotation during preload setting is
unacceptable due to damage that may be caused to the balls or
return tubes of the ball nut.
After setting the preload to the desired preload force, tighten the set
screws into the adjuster nut to secure the preload setting.
Preload Components Assembly
Figure 12. Mounting rear nut.
Insert the tabs of the preload sleeve into the slots of the front nut
and then turn the rear nut onto the screw. Both nuts now turn as an
assembly with the tangs in full engagement to prevent the two nuts
from rotating separately. The return tubes of the two nuts should be
in line with one another. The adjuster nut must be loose at this point,
not compressing the belleville springs. (See Figure 13.)
Use in conjunction with Assembly instructions on page 221 if
assembly of resilient preload components to rear nut is necessary.
Turn the locknut onto the V-threads of the rear nut until the spanner
wrench holes line up with the pin holes on the nut. (See Figure 14.)
Do not tighten the set screws at this point.
LOCK NUT
REAR NUT
Figure 14. Assembly of locknut to rear nut.
Figure 13. Assembled preload ready for setting.
Turn the locknut until all freeplay is just removed. At this point further
turning will begin compressing the preload springs and set the
preload force.
222
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Lead Screws, Ball Screws and Ball Splines
Installation
Method C (Continued)
Insert the sleeve into position with preload springs oriented as shown
in Figure 15. Align the sleeve holes for insertion of the spring pins.
LOCK NUT
SPRINGS (3)
SLEEVE
Figure 15. Assembly of sleeve and preload springs.
Press the pins to a depth just below the root of the V-threads in the
locknut to allow the locknut to turn freely (see Figure 16). The pins
must not be inserted deeper, as they may interfere with the ball
screw grooves.
PINS (3)*
* THE PINS ARE INSERTED ONLY TO THE INSIDE
DIAMETER OF THE PRELOAD SLEEVE.
Figure 16. Inserting retainer pin.
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Table C. Preload Using Turn Technique
Ball Nut
Nominal
Size & Lead
.375 x .125
.375 x .125
.500 x .200
.500 x .500
.500 x .500
.631 x .200
.631 x .200
.750 x .500
.750 x .200
.750 x .200
1.000 x 1.000
1.000 x .500
1.000 x .250
1.000 x .250
1.150 x .200
1.500 x .500
1.500 x .500
Ball Nut
P/N
Preload
Lbs (Newtons)
Turns
8103-448-004
8103-448-005
8105-448-008
8105-448-009
8105-448-012
8106-448-015
8106-448-019
8107-448-011
8107-448-012
8107-448-025
8110-448-015
8110-448-016
8110-448-017
8110-448-018
8111-448-004
8115-448-006
8115-448-007
50
50
120
220
190
80
80
345
190
190
225
395
335
335
240
1290
1290
0.29
0.29
0.24
0.46
0.33
0.25
0.25
0.58
0.33
0.33
0.43
0.77
0.64
0.64
0.59
0.65
0.65
1.500 x 1.000
1.500 x .250
1.500 x .500
1.500 x 1.000
1.500 X 2.000
2.000 x .500
2.000 x .500
2.000 x 1.000
2.250 x .500
2.250 x .500
2.500 x 1.000
2.500 x .500
2.500 x .500
3.000 x .660
3.000 x .660
8115-448-011
8115-448-012
8115-448-029
8115-448-032
8115-448-059
8120-448-006
8120-448-007
8120-448-019
8122-448-003
8122-448-008
8125-448-004
8125-448-006
8125-448-015
8130-448-004
8130-448-010
825
405
1290
825
760
1915
1915
2195
1930
1930
2690
2120
2120
3800
3800
0.49
0.62
0.65
0.49
0.40
0.26
0.26
0.30
0.51
0.51
0.51
0.40
0.40
0.34
0.34
223
Installation
STEP FOUR: Complete Installation of the Wiper Kit
If applicable, complete wiper kit installation.
Wiper with Flange Retainer
COUNTERBORED FLANGE
ADAPTER PLATE
STAMPED FLANGE
RETAINER PLATE
COUNTERBORED
WORK PIECE FOR
FLANGE ATTACHMENT
THREADED WORK PIECE
FOR BALL NUT ATTACHMENT
WITH SNAP RING RETAINER
THREADED WORK PIECE
FOR BALL NUT ATTACHMENT
Wiper without Flange Retainer
224
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Lead Screws, Ball Screws and Ball Splines
Installation
STEP FIVE: Lubricate the Ball Nut and Screw
Lubrication
Ball screw components are coated with a light oil for shipping and
storage and must be properly lubricated upon assembly.
Initial Lubrication
As with ball bearings, ball screws can be lubricated using either
oils, greases or solid lubricants. Oils are recommended for systems
which operate at high speeds, in aggressive environments, or in high
ambient temperatures. Greases are recommended for ball screws
where an oil circulation lubrication system cannot be applied, or
areas where a lubricated-for-life situation is possible. Solid lubricants
are typically applied to adverse operating conditions where oils and
greases are not suitable.
Grease Lubrication Quantity
The nut can be filled to as much as 70% but no lower than 30% of its
free space, depending upon operating speed and nDm. Nuts which
are not fitted with wipers can be filled completely.
Grease Relubrication
In general, ball screws should be relubricated every 500,000
revolutions or every six months. Ball screws which operate above
70°C should be relubricated more often (1/2 the relubrication period
for every 15°C increment above 70°C). Use of synthetic lubricants
can increase the relubrication interval up to four times, depending on
formulation and operating conditions.
We recommend using TriGEL-450R or TriGEL-1800RC for lubricating
ball screws every 500,000 to 1 million inches of travel or every six
months. Other lubricants may be applicable but have not been
evaluated.
The TriGEL grease can be applied directly to the screw threads
near the root of the ball track. Some ball nut sizes are available with
threaded lube holes for mounting lubrication fittings. For these ball
nuts, the TriGEL grease can be pumped directly into the nut. Please
refer to the catalog to verify which ball nuts have the threaded lube
holes. It is recommended to use these nuts in conjunction with a
wiper kit to contain the lubricant within the body of the nut.
Ball screws may require lubrication more frequently than 500,000 inches
depending on both environmental and operating conditions. If the
lubricant appears to be dispersed before this point or has become
dry or crusted, the maintenance interval should be reduced. Before
adding additional lubrication, wipe the screw clean, removing the old
grease and any particular contamination seen on the screw.
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Relubrication quantities should equal 30% of the nut free space.
When possible, relubrication should be performed while the screw is
operating.
Run-In
In order to distribute the grease throughout the ball screw elements,
it is recommended that the screw be run two to ten times over its
complete operating stroke. Run-in should be performed at initial
start-up and after every subsequent relubrication.
Grease Operating Life
When relubricated with the proper frequency, ball screws should
achieve their rated fatigue life. When no relubrication is possible,
actual grease operating life will be affected by operating speed,
running temperature, and the extent of environmental contamination.
Relubrication intervals can best be determined by experience.
Changes in grease consistency, grease color, operating torque
and operating temperature can indicate the need for lubrication
replenishment.
225
Installation
STEP SIX: Install Ball Screw Assembly into Your Machine
Installation of Ball Screw Assembly
A ball nut flange is the recommended means of attaching a ball nut
to a load. The ball screw assembly should be mounted into a system
or machine as shown in the figures below. Axial loading of the nut
is optimal for performance and life and side loading installations or
applications should be avoided.
Typical ball screw installations are combined with linear slides to
provide support and guidance. Linear rails and ball screws must then
be aligned parallel to prevent binding, increased system torque and
a decrease in life. Typical installation practice consists of “floating”
the ball screw or the linear rail into alignment. To “float” a screw into
alignment, secure the linear rail into position and adjust the mounting
blocks or nut to minimize the error from parallel.
Nut Loading
Axial loading (on nut or screw) is optimal for performance and life.
For applications requiring radial loads, please contact us.
Axial Loading: optimal
Radial Loading: detrimental*
F/2
F
F/2
F
F
* Minimize radial loading to less than 5% of the axial load.
Nut Mounting (Inch)
Use the following guidelines to achieve optimal performance.
Tolerances:
.0004 in A Precision Plus
.0008 in A Precision Rolled
Tolerances:
.001 in/ft. A
Precision Plus
.003 in/ft. A
Precision Rolled
A
A
Nut Mounting (Metric)
Use the following guidelines to achieve optimal performance.
(All units are mm)
Tolerances:
.01mm
.02mm
A P3
A P5, T5, T7
Tolerances:
.01mm/100mm A P3
.02mm/100mm A P5, T5, T7
A
A
226
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Lead Screws, Ball Screws and Ball Splines
Maintenance and Service
If proper attention is paid to ball bearing screw selection and
installation, virtually no maintenance will be required except for
routine lubrication.
All Thomson ball screw assemblies are designed for maximum
life and trouble-free operation when adequately serviced and
maintained. Ball screw disassembly should be attempted only after
complying with the general inspection and maintenance instructions
outlined in this section. Be positive that the ball screw is at fault.
Disassembly should be done only by persons familiar with ball
screw assembly principles. In any unusual circumstances, contact
Thomson.
Troubleshooting
Misalignment is one of the most common problems. Evidence of
misalignment can generally be detected by one of the following
situations:
• Squealing noise caused by the balls sliding in one or more of the
circuits.
• Roughness in the form of vibrations or slightly erratic operation.
This can normally be detected by “feel” when placing your hand
on the return circuits.
• Excessive heat at the ball nut. Any appreciable temperature
above the ambient of adjacent components should be considered
excessive.
Gouging or scoring marks on the ball contact area of the screw
may be caused by trapped balls between the circuits, broken balls,
broken pick-up fingers or deflectors, or foreign objects which may
have been digested by the ball nut.
When any of these conditions are encountered, examine the
installation and, if necessary, immediately take corrective action to
eliminate the cause and prevent further damage.
General Inspection of the Screw Shaft
Inspect the shaft ball grooves for signs of excessive wear, pitting,
gouges, corrosion, or brinelling. Normally, where any of these
conditions exist on most Thomson Precision units, it may be more
economical and advisable to replace the screw shaft.
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Backlash
Secure the screw shaft rigidly in a table clamp or similar device.
Make sure it cannot rotate. Push firmly on the ball nut, first in one
direction, then in the opposite direction. The axial movement of the
ball nut is the backlash. This measurement can be taken with a dial
indicator. Make sure that neither member rotates while the readings
are taken.
Backlash with the following limits is considered acceptable:
Ball
Diameter
0 - 1/8”
5/32” - 1/4”
9/32” - 15/32”
1/2” and up
Max. Permissible† Lash
(used unit)
.008
.014
.025
.050
Max. Lash
(new unit)
.005
.007
.010
.015
†V
alues based on wear resulting from foreign material contamination and/or lack of
lubrication.
If, after inspection, the screw shaft appears to be usable but
has excessive backlash, proceed with further disassembly and
component inspection.
Disassembly
General Instructions: Have a clean container, such as a tote tray
or cardboard box, handy for each ball return circuit of the ball nut
assembly. A piece of clean cloth should be placed on the work table
and gathered around the edge to form a pocket to retain the balls.
Place the ball nut assembly over the cloth and remove the clamp.
Where more than one guide is held in place by a single clamp,
secure each remaining guide with a strip of tape around the diameter
of the ball nut to prevent accidental guide removal before you are
ready for that circuit.
Remove both halves of the guide simultaneously to prevent distortion
to either half. Catch all the balls from this circuit on the cloth by
rotating the screw or ball nut slowly. Place the removed components
into a container. Identify the container, the guide, and the circuit
of the ball nut so the components can be reassembled in the same
circuit from which they were removed. Repeat for each circuit.
227
Maintenance and Service
General Description
A Thomson ball screw is a force and motion transfer device
belonging to the family of power transmission screws. It replaces
sliding friction of the conventional power screw with the rolling
friction of bearing balls. The balls circulate in hardened steel races
formed by concave helical grooves in the screw and nut. All reactive
loads between the screw and nut are carried by the balls which
provide the only physical contact between these members.
FASTENER (SCREW OR NUT)
GUIDE (SEE METHOD I & II)
BALL NUT ASSEMBLY
CLAMP
SCREW
SHAFT
As the screw and the nut rotate relative to each other, the balls are
diverted from one end and carried by ball guides to the opposite end
of the nut. This recirculation permits unrestricted travel of the nut in
relation to the screw.
Method I: Ball nuts using a deflector return system are identified by
threaded deflector studs extending through holes in the nut and the
guide clamp. Lock nuts on the deflector studs are used to secure the
clamps that hold the guides in place.
Method II: Ball nuts with pick-up fingers are identified by the finger
projections integral with the guide. In this method, capscrew
fasteners are used to fasten the clamp that holds the guide in place.
Pick-up Finger Method: Refer to the Component Inspection section.
Deflector Method: To remove the deflectors from the ball nut
assembly, remove the ball nut from the screw shaft. The ball nut
must be rotated since the deflectors engage loosely in the screw ball
grooves and act as a thread. The deflectors now can be removed
from the opposite ends of the ball nut so that you can use them for
reference during component inspection.
228
BALLS
BALL GROOVES (NUT)
DEFLECTORS (SEE METHOD I)
WIPER
WIPER RETAINER
(OPTIONAL)
RETAINER
(SHIPPING)
DEFLECTOR
BALL GROOVES
(SHAFT)
METHOD I
METHOD II
GUIDE
GUIDE
GUIDE
(NO PICK-UP FINGERS)
GUIDE
(WITH PICK-UP FINGERS)
Figure 17
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Lead Screws, Ball Screws and Ball Splines
Maintenance and Service
Component Inspection and Replacement
Balls: If there is more than one circuit in the ball nut, count the balls
in each of the separate containers to be sure each has the same
number (within a variation of three balls). Check random samples
(about 1/4 of the balls for a circuit) for the following:
• True roundness, with a .0001 in. maximum variation.
• Signs of scuffing or fish scaling.
• More than .0001 in. diameter variation between balls of the same
circuit.
Where the random sampling shows balls out of round, signs of
scuffing or variation of diameter in excess of .0001 in., or short count
in any circuit, all balls in the unit must be replaced with a complete
set of new balls. Ball kits are available from Thomson.
To ensure proper operation and long life of the serviced assembly,
it is imperative that the diameters of all the replacement balls do not
vary in excess of .00005 in. If Thomson kits are not used for service,
make sure the balls meet the above specification. (Note: Use only
chrome alloy steel balls, Grade 25 or better. Carburized balls or
carbon steel balls will not provide adequate life.) See Ball Chart
table.
Deflectors: Examine the ends of the deflectors for wear or brinelling.
Wear can be determined by comparison with the unused ends of the
two outside deflectors. Since these ends have not been subjected
to wear from balls, they are in a like-new condition. Where wear or
brinelling is evident, it is best to replace the deflectors with new ones.
Pick-up Fingers: Inspect the pick-up fingers, which consist of short
extensions at the end of the guides. Replace with new guides if a ball
brinell impression appears on the tip. Remove any burrs on the fingers.
If the guides were distorted during removal, replace with new guides.
Ball Nut: Inspect the internal threads of the ball nut for signs of
excessive wear, pitting, gouges, corrosion, spalling, or brinelling in
the ball groove area. On large ball nuts, running the tip of your finger
along the groove which is accessible will enable you to detect a
secondary ridge in the ball groove area when wear is excessive or
brinelling has occurred. (The extended lead of a mechanical pencil
can also be used as a groove probe.) If inspection indicates any of
these flaws, the ball nut assembly should be replaced.
Wipers: Prolonged use and environmental conditions will generally
determine the condition of wipers. After cleaning wipers, reassemble
over the screw shaft to determine whether a snug fit is maintained
over the complete contour of the screw shaft. Any loose fitting
or worn wipers should be replaced. Wiper kits are available for
Thomson ball screws.
Note: If the assemblies have had extended use, it is recommended
that all low cost items be replaced with new parts (i.e., balls, guides,
deflectors, clamps). These can be ordered by simply referring to the
assembly part number purchased.
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Reassembly
Cleaning: Clean all components with a commercial solvent and dry
thoroughly before reassembly.
Deflector Method: Where the ball nut is equipped with deflectors,
install these and secure temporarily by running the lock nuts down
the studs and tightening.
General Instructions: Position the ball nut on the screw shaft. Ball nuts
with deflectors have to be screwed on. Other ball nuts will slide on.
Using dowels with an O.D. approximately equal to the diameter of the
balls, center the ball nut grooves with the shaft grooves by inserting
dowels into each of the ball nut return circuit holes.
Remove the second dowel from one end. With the ball return holes
up, fill the circuit with balls from the container corresponding to that
circuit. Turning the screw in the ball nut will help to feed the balls
into the groove. When the circuit is full, the balls will begin to lift the
end dowel from its position. To be sure there are no voids, lightly tap
the top bearing ball and see if the end dowel moves.
The remaining ball in the container should fit into one of the halves of
the return guide with space for about three to six left.
Note: There must be some free space in the ball circuit so the balls
will roll and not skid. Do not try to add extra balls into the circuit.
Place a dab of bearing grease at each end of the half return guide to
hold the balls in place. Now, take the other half of the return guide
and place it over the half guide you have filled with balls and insert
two ends of the ball guide into the respective hole in the ball nut.
Seat by tapping gently with a rawhide or plastic mallet.
Note: Where more than one ball circuit must be filled in the ball
nut, tape the ball return circuit to the ball nut to prevent accidental
removal. Repeat the filling procedure for the remaining circuits.
With all ball circuits filled and all return guides in place, secure the
return guides with the retaining clamp.
CAUTION: Care should be taken to ensure that balls are not
accidentally trapped between circuits in units having pick-up fingers.
In deflector units, the deflectors will fill this space.
Inspection: Wrap tape around the ball grooves at the ends of the
screw shaft to prevent the ball nut from rolling off. Now inspect the
assembly for free movement of the ball nut along the entire stroke.
There should be no binding, squeal, or roughness at any point.
Reducing Backlash: Backlash can be reduced by replacing all the
balls with a larger size. If the diameters of the bearing balls are
increased by .001 in., backlash is decreased by .003 in. (Ball kits are
available for these applications.)
229
Maintenance and Service
Ball Chart (Grade 25 or Better)
Size
(Inches)
Part
Number
.187 x .050
.187 x .062
.375 x .125
.375 x .125
.375 x .125
.375 x .125
.375 x .125
.375 x .125
.375 x .125
.500 x .200
.500 x .200
.500 x .200
.500 x .500
.500 x .500
.500 x .500
.631 x .200
.631 x .200
.631 x .200
.631 x .200
.631 x .200
.631 x .200
.631 x .200
.631 x .200
.631 x .200
.631 x .200
.631 x 1.000
.631 x 1.000
.750 x .200
.750 x .200
.750 x .200
.750 x .200
.750 x .200
.750 x .200
.750 x .500
.750 x .500
.750 x .500
.750 x .500
.750 x .500
.875 x .200
.875 x .200
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .250
1.000 x .500
1.000 x .500
1.000 x 1.000
1.000 x 1.000
1.000 x 1.000
7821609
7821579
5709574
5709576
5709578
8103-448-017
8103-448-018
8103-448-003
8103-448-013
8105-448-013
8105-448-008
8105-448-023
8105-448-014
8105-448-011
8105-448-016
8106-448-022
8106-448-026
5707645
8106-448-009
8106-448-008
8106-448-036
8106-448-012
8106-448-015
8106-448-019
7832872
7826713
7827531
8107-448-018
8107-448-026
8107-448-016
8107-448-027
8107-448-046
8107-448-025
8107-448-014
8107-448-020
8107-448-049
8107-448-048
8107-448-011
7833677
5708277
8110-448-091
8110-448-055
8110-448-032
8110-448-030
8110-448-056
8110-448-026
8110-448-024
8110-448-087
8110-448-088
7820426
7820428
7823586
8110-448-022
8110-448-016
8110-448-086
8110-448-020
8110-448-034
230
Nominal
Diameter
(Inches)
0.039
0.039
0.063
0.063
0.063
0.078
0.078
0.078
0.078
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.138
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.125
0.156
0.156
0.156
0.156
0.156
0.125
0.125
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
0.156
Number
of Balls
Size
(Inches)
Part
Number
30
30
62
62
62
49
49
108
108
96
192
46
108
146
146
68
68
67
70
70
136
140
140
140
42
46
92
86
86
86
172
172
172
152
152
152
152
304
168
184
86
86
89
89
171
182
182
182
182
168
168
170
196
392
100
152
152
1.150 x .200
1.150 x .200
1.150 x .200
1.171 x .413
1.500 x .250
1.500 x .250
1.500 x .250
1.500 x .250
1.500 x .473
1.500 x.500
1.500 x.500
1.500 x.500
1.500 x 1.000
1.500 x 1.000
1.500 x 1.000
1.500 x 1.000
1.500 x 1.000
1.500 x 1.000
1.500 x 1.000
1.500 x 1.875
1.500 x 1.875
1.500 x 2.000
1.500 x 2.000
2.000 x .500
2.000 x .500
2.000 x .500
2.000 x .500
2.000 x 1.000
2.000 x 1.000
2.250 x .500
2.250 x 1.000
2.500 x .250
2.500 x .250
2.500 x .500
2.500 x 1.000
3.000 x .660
3.000 x 1.500
4.000 x 1.000
.375 x 3
.625 x 3
.625 x 6
1.000 x 3
1.000 x 6
1.500 x 3
1.500 x 6
2.000 x 3
2.000 x 6
2.500 x 3
2.500 x 6
4.062 x 6
6.000 x 8
8111-448-006
7823587
8111-448-004
5707511
7833233
5701990
7833234
5704573
5707513
8115-448-016
8115-448-018
8115-448-006
5708280
5701995
7833724
8115-448-014
8115-448-049
5700698
8115-448-011
5707654
5704272
8115-448-056
8115-448-057
8120-448-011
8120-448-013
8120-448-006
8120-448-007
8120-448-021
8120-448-019
7833235
5704555
5703243
7823590
8125-448-010
8125-448-008
8130-448-007
5704986
5703258
5706900 / 7828127
5707445 / 7828128
5708943 / 7828129
5707472 / 7828130
5708944 / 7828131
5707528 / 7828132
5708945 / 7828133
5707530 / 7828134
5708946 / 7828135
5707532 / 7828136
5708947 / 7828137
5708330 / 7828138
5704798 / 7828140
Nominal
Diameter
(Inches)
0.125
0.125
0.125
0.281
0.156
0.156
0.156
0.156
0.344
0.312
0.312
0.312
0.344
0.344
0.344
0.344
0.344
0.344
0.344
0.281
0.281
0.281
0.281
0.375
0.375
0.375
0.375
0.375
0.375
0.375
0.375
0.156
0.156
0.375
0.375
0.500
0.500
0.625
0.156
0.187
0.187
0.187
0.187
0.250
0.250
0.312
0.312
0.375
0.375
0.375
0.500
Number
of Balls
252
224
504
60
230
230
464
464
86
140
140
280
60
60
60
68
68
120
136
84
168
96
96
150
150
300
300
160
320
154
164
468
936
184
194
180
166
186
54
60
120
78
156
84
168
72
144
66
132
180
224
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Maintenance and Service
Size
(mm)
Part
Number
16 x 5
20 x 5
20 x 20
25 x 5
25 x 10
25 x 25
32 x 5
32 x 10
32 x 20
32 x 32
40 x 5
40 x 10
40 x 20
40 x 40
50 x 10
50 x 20
63 x 10
63 x 20
80 x 10
16 x 5
20 x 5
25 x 5
32 x 5
32 x 10
40 x 5
40 x 10
50 x 10
63 x 10
80 x 10
12 x 10
16 x 5
16 x 10
20 x 5
25 x 5
25 x 10
25 x 20
25 x 25
25 x 50
32 x 5
32 x 10
32 x 20
32 x 32
40 x 5
40 x 10
40 x 20
40 x 40
50 x 10
50 x 20
63 x 10
63 x 20
7832777
7832780
7832784
7832787
7832791
7832794
7832796
7832799
7832803
7833300
7832805
7832809
7832812
7832815
7832818
7832821
7832823
7832826
7832828
7832835
7832838
7832841
7832862
7832844
7832847
7832850
7832853
7832856
7832859
KGF-D-1210-RH-EE
KGF-D-1605-RH-EE
KGF-D-1610-RH-EE
KGF-D-2005-RH-EE
KGF-D-2505-RH-EE
KGF-D-2510-RH-EE
KGF-D-2520-RH-EE
KGF-D-2525-RH-EE
KGF-D-2550-RH-EE
KGF-D-3205-RH-EE
KGF-D-3210-RH-EE
KGF-D-3220-RH-EE
KGF-D-3232-RH-EE
KGF-D-4005-RH-EE
KGF-D-4010-RH-EE
KGF-D-4020-RH-EE
KGF-D-4040-RH-EE
KGF-D-5010-RH-EE
KGF-D-5020-RH-EE
KGF-D-6310-RH-EE
KGF-D-6320-RH-EE
www.thomsonlinear.com
Nominal
Diameter
(mm)
3.500
3.500
3.500
3.500
3.500
3.500
3.500
5.556
5.556
3.969
3.500
7.144
5.556
7.144
7.144
6.350
7.144
7.144
7.144
3.500
3.500
3.500
3.500
5.500
3.500
6.350
7.144
7.144
7.144
2.000
3.500
3.000
3.500
3.500
3.500
3.500
3.500
3.500
3.500
7.140
5.000
3.969
3.500
7.140
5.000
3.500
7.140
7.140
7.144
7.140
Number
of Balls
Size
(mm)
Part
Number
42
54
100
66
164
120
116
54
136
124
180
72
156
96
88
164
140
186
210
56
108
132
232
108
360
160
176
280
420
63
45
102
48
63
75
80
130
130
140
42
84
124
180
54
104
360
115
100
140
96
16 x 5
20 x 5
20 x 20
20 x 50
25 x 5
32 x 5
32 x 10
32 x 40
40 x 5
40 x 10
50 x 10
63 x 10
80 x 10
12 x 10
16 x 5
16 x 10
20 x 5
25 x 5
25 x 10
25 x 20
25 x 25
25 x 50
32 x 5
40 x 5
40 x 10
40 x 20
40 x 40
50 x 10
63 x 10
63 x 20
12 x 5
20 x 5
20 x 20
20 x 50
25 x 5
32 x 5
32 x 10
32 x 20
32 x 40
40 x 5
50 x 10
50 x 20
63 x 10
80 x 10
12 x 4
16 x 5
20 x 5
25 x 5
25 x 10
32 x 5
32 x 10
40 x 5
40 x 10
40 x 20
50 x 10
63 x 10
80 x 10
KGF-N-1605-RH-EE
KGF-N-2005-RH-EE
KGF-N-2020-RH-EE
KGF-N-2050-RH-EE
KGF-N-2505-RH-EE
KGF-N-3205-RH-EE
KGF-N-3210-RH-EE
KGF-N-3240-RH-EE
KGF-N-4005-RH-EE
KGF-N-4010-RH-EE
KGF-N-5010-RH-EE
KGF-N-6310-RH-EE
KGF-D-8010-RH-EE
KGM-D-1210-RH-EE
KGM-D-1605-RH-EE
KGM-D-1610-RH-EE
KGM-D-2005-RH-EE
KGM-D-2505-RH-EE
KGM-D-2510-RH-EE
KGM-D-2520-RH-EE
KGM-D-2525-RH-EE
KGM-D-2550-RH-EE
KGM-D-3205-RH-EE
KGM-D-4005-RH-EE
KGM-D-4010-RH-EE
KGM-D-4020-RH-EE
KGM-D-4040-RH-EE
KGM-D-5010-RH-EE
KGM-D-6310-RH-EE
KGM-D-6320-RH-EE
KGM-N-1205-RH-OO
KGM-N-2005-RH-EE
KGM-N-2020-RH-EE
KGM-N-2050-RH-EE
KGM-N-2505-RH-EE
KGM-N-3205-RH-EE
KGM-N-3210-RH-EE
KGM-N-3220-RH-EE
KGM-N-3240-RH-EE
KGM-N-4005-RH-EE
KGM-N-5010-RH-EE
KGM-N-5020-RH-EE
KGM-D-6310-RH-EE
KGM-D-8010-RH-EE
7832771
7832778
7832781
7832788
7832792
7832797
7832800
7832806
7832810
7833723
7832819
7832824
7832829
Nominal
Diameter
(mm)
3.500
3.500
3.500
3.500
3.500
3.500
7.140
3.500
3.500
7.140
7.140
7.140
7.144
2.000
3.500
3.000
3.500
3.500
3.500
3.500
3.500
3.500
3.500
3.500
7.140
5.000
3.500
7.144
7.144
7.140
2.000
3.500
3.500
3.500
3.500
3.500
7.140
5.000
3.500
3.500
7.140
7.140
7.144
7.144
1.984
3.500
3.500
3.500
3.500
3.500
5.556
3.500
7.144
5.556
7.144
7.144
7.144
Number
of Balls
45
48
100
140
63
140
42
168
180
54
115
140
175
63
45
102
48
63
75
80
130
130
140
180
54
104
360
155
140
96
60
48
100
140
63
140
42
84
168
180
115
100
140
175
57
56
72
110
55
145
72
180
90
80
132
168
210
231
Maintenance and Service
Inspection and Existing Preload Check: Whenever possible, the
complete ball screw assembly should be removed from the machine
prior to a thorough inspection. Preliminary screw inspection can be
made while the unit is still in the machine. Preload can be determined
by measuring movement of the nut in respect to the screw shaft.
Clamp an indicator to the screw shaft with its probe resting on
the face of the nut. Apply a load to the machine carriage in both
directions. Be sure that the screw cannot rotate or move axially. Any
measurable backlash between the ball nut and screw is an indication
that preload does not exist. (See Figure 18.)
LEVER ARM (in.)
FORCE
MEASUREMENT (lb.)
LEVER ARM
90°
If no backlash exists, proceed further as outlined to determine
whether proper preload remains in the unit. Existing preload, Wp, can
be determined by measuring torque, Tp, using the following formula:
BALL NUT
Wp = Tp
.007
where:
SCREW
FLANGE
Wp = Preload force, in lb.
Tp = Torque, in lb-in. (due to preload only)
Note: The above check is to determine preload only, and does not
take into account torque due to seal drag or operating load.
LEVER ARM (in.)
Torque can be measured by means of a spring scale mounted to
any projection on the ball nut or by means of a lever or rod secured
to the ball nut. In taking this measurement, be sure the exact lever
arm distance is measured. (See Figure 18.) This measurement (inch)
multiplied by the scale reading (lb.) equals Tp (torque lb-in.). Existing
preload can now be determined using the above formula.
SCREW
BALL NUT
FORCE MEASUREMENT (lb.)
Preload adjustment of a Precision ball screw (Figure 18) requires
no disassembly. Possible removal of the ball nut from the machine
housing may be necessary to expose the adjusting nut.
Disassembly: If in doubt about disassembly of preloaded ball
nuts, contact Thomson Application Engineering. If the unit is to be
disassembled for general repair, follow the steps previously outlined
in this section.
If being disassembled for preload adjustment, follow the guidelines
except remove only one-half of the ball nut assembly to an arbor. If
a standard arbor is not available, one can be made from a piece of
shafting or tubing with a diameter approximately .005 inch less than
the root diameter of the ball grooves in the screw shaft. Both halves
of the ball nut will come apart as soon as the last ball in the nut is
free of the grooves in the screw shaft. It is not necessary to remove
the other half from the screw.
Preload Adjustment: The adjusting nut unit in Figure 18 can be
adjusted to the desired preload with the use of additional shims.
To make further adjustment, loosen the set screw lock located on
the periphery of the lock nut. Use a spanner wrench to rotate the
adjusting nut to the desired setting. Recheck the preload.
232
Figure 18
For all other standard units in Figure 18, a shim increase of .001 inch
will, as a general rule, increase preload by 500 to 1,000 lb. This varies
depending upon screw size; therefore, some judgement and trial and
error may be necessary before the desired preload is achieved.
Preload force, Wp, can be determined by measuring torque, Tp, after
the desired preload has been established using the following formula:
Tp = .007 x Wp
where: Tp = torque, lb-in. (due to preload only)
Wp = preload force, lb.
This section is intended to provide basic necessary information to
properly service and maintain Thomson ball screws. Other forms
of preloaded units may be encountered which have been designed
for particular applications. Please contact Thomson Application
Engineering for other specific information.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Lubrication
Guidelines
Ball screws must be lubricated to operate properly and achieve the
rated life. We recommend using TriGEL-450R or TriGEL-1800RC for
lubricating ball screws. Other oils and greases may be applicable but
have not been evaluated.
The TriGEL® grease can be applied directly to the screw threads
near the root of the ball track. Some ball nut sizes are available
with threaded lube holes for mounting lubrication fittings. For these
ball nuts, the TriGEL grease can be pumped directly into the nut.
Please refer to the catalog detail views to verify which ball nuts
have the threaded lube holes. It is recommended to use these nuts
in conjunction with a wiper kit to contain the lubricant in the body of
the nut.
Lubrication
Inspection Prior to Lubrication: All ball screw assemblies should run
smoothly throughout the entire stroke. If the torque is not uniform
over the entire stroke:
• Visually inspect the screw shaft for accumulations of foreign matter.
• Using cleaning fluid or solvent, remove dirt from the ball grooves.
Be sure to flush the ball nut assembly thoroughly.
• Cycle the ball nut along the screw shaft several times. Wipe with a
dry, lintless cloth and lubricate immediately.
• If the assembly continues to operate erratically after cleaning,
contact Thomson for further instructions.
Lubrication: The operating environment primarily determines the
frequency and type of lubrication required by ball screws. The screw
shaft should be inspected frequently and lubricated as required by the
environmental conditions present. Lubricants can vary from instrument
grade oil for dirty and heavy-dust environments to a good grade
ball bearing grease for protected or clean environments. For most
applications, a good 10W30 oil periodically wiped on the screw shaft
with a damp cloth or applied by a drip or mist lubricator will suffice.
CAUTION: Where the screw is unprotected from airborne dirt, dust,
etc., do not leave a heavy film of lubricant on the screw. Keep the
screw shaft barely damp with lubricant. Inspect at regular intervals
to be certain lubricating film is present. Where the application
requires operation at temperatures below 0° F, an instrument grade
oil is recommended. Operating environments from 0° F to 180° F will
require a good grade 10W30 oil. For assemblies with balls larger than
3/8 in. diameter, MIL G 3278 grease is recommended. Bearing grease
is recommended for operating environments at nominally higher
temperatures. Again, in unprotected conditions, the lubricant is best
applied with a lubricant-dampened cloth, taking care not to leave an
excessive film thickness on the screw. Ball screws should never be
run dry.
Lubrication Selection Chart for Ball & Lead Screw Assemblies
Thomson Gel Type
Application
TriGel-300S
Acme Screws
Supernuts, Plastic Nuts
TriGel-450R
Ball Screws, Linear
Bearings
TriGel-600SM
Bronze Nuts
Maximum Temperature*
Mechanism Materials
200°C (392°F)
Plastic on Plastic or
Metal
Light
Yes
125°C (257°F)
Metal on Metal
Moderate
—
125°C (257°F)
Metal on Metal
Bronze on Steel
Moderate to Heavy
—
Yes
Not recommended w/o
OEM testing
May cause silicon
rubber seals to swell
Not recommended
Not recommended
Varies with lot
Yes
Not recommended w/o
OEM testing
May cause EPDM seals
to swell
Not recommended
Not recommended
Varies with lot
TriGel-300S
TriGel-300S-1
NA
TriGel-450R
TriGel-450R-1
NA
Mechanical Load
Very Low Torque Variation
over Temperature
Very Low Starting Torque
Compatibility with
Reactive Chemicals
Compatibility with Plastics
and Elastomers
Clean Room Use
High Vacuum Use
Vapor Pressure (25°C)
Order Number
10cc Syringe
1 Pound Tube
4oz Tube
TriGel-1200SC
Acme Plastic Nuts,
Clean Room, High
Vacuum
250°C (482°F)
Plastic or Metals,
Combination
Light to Moderate
Yes
TriGel-1800RC
Ball Screws, Linear
Bearings, Bronze Nuts,
Clean Room, Vacuum
125°C (257°F)
Metal on Metal
—
Not recommended w/o
OEM testing
May cause EPDM seals
to swell
Not recommended
Not recommended
Varies with lot
Yes
Usually OK
Usually OK
Usually OK
8x10-9 torr
Yes
Not recommended w/o
OEM testing
May cause EPDM seals
to swell
Usually OK
Usually OK
4x10-9 torr
NA
NA
TriGel-600SM
TriGel-1200SC
NA
NA
TriGel-1800RC
NA
NA
Usually OK
Moderate
—
* Maximum temperature for continuous exposure. Higher surge temperatures may be permissible but should be validated in the actual end use by the OEM.
Low temperature limits are -15°C or lower. Consult Thomson for specifics.
www.thomsonlinear.com
233
Glossary/Formulas
Accuracy
A measurement of precision. Perfect
accuracy, for example, means advancing a
ball nut 1 in. from any point on a screw will
always require the exact same number of
revolutions.
Annealed Ends
A manufacturing process which removes
brittleness while softening screw stock to
allow for machining of end journals.
Compression Load
Compression load is a load which would tend
to compress or buckle the ball screw shaft.
Conformity Ratio
Ratio of the ball track radius to the ball
diameter.
Contact Angle
Temporary shaft used to support ball nut
during shipping assembly/disassembly.
Nominal angle between a plane
perpendicular to the screw and a line drawn
between a ball and the ball tracks and
projected on a plane passing through the
screw axis and the center of the ball. The
angle at which the ball contacts the groove.
Axial Lash/Backlash
Column Load
Arbor or Mandrel
The axial free motion between the ball nut
and ball screw; a measure of system stiffness
and repeatability.
Backdrive
Application of a force on a ball nut to cause
rotation of the screw shaft; in essence,
converting linear to rotary motion.
Ball Bearing Spline
A linear motion device using the rolling
contact principle. In a spline, the path of the
bearings is parallel to the shaft to allow axial
freedom and to provide torque transmitting
capacity.
Ball Circle Diameter
The distance between the centerlines of two
exactly opposing recirculating balls when
they are in contact with the screw. The basic
point of reference used by Thomson when
dealing with ball screws.
Ball Nut
A nut compatible with a ball screw. The nut
contains a series of bearing balls which are
carried from one end of the nut to the other
by a return tube.
Ball Screw
A ball bearing screw is a screw that runs on
bearing balls. The primary function of a ball
bearing screw is to convert rotary motion to
linear motion or torque to thrust.
Bearing Ball Circuit
The closed path of recirculating balls within
the ball nut assembly. A multiple circuits
has a greater load carrying capability than a
single circuit ball nut assembly of the same.
234
Column loading is the compression load
on the screw. This load has a tendency to
buckle the screw and is dependent on screw
diameter, screw length and type of mounting.
Critical Speed
The condition where the rotary speed of the
assembly sets up harmonic vibrations. These
vibrations are the result of shaft diameter,
unsupported length, type of bearing support,
ball nut mounting method, or the shaft or ball
nut rpm. Vibrations may also be caused by a
bent screw or faulty installation alignment.
Cycle
The complete forward and reverse motion
of the screw (or nut) when moving the load.
One cycle is equivalent to two load carrying
strokes (one forward and one backward).
Diameter — Major
The outside diameter of the ball bearing
screw shaft. In dealing with ball bearing
screws, this is the basic measurement.
Diameter — Minor (Root)
Diameter of the screw measured at the
bottom of the ball track.
Diameter — Pitch
The nominal diameter of a theoretical
cylinder passing through the centers of the
balls when they are in contact with the ball
bearing screw and ball nut tracks.
Driving Torque
The amount of effort, measured in poundinches, required to turn the ball screw and
move the load.
Dynamic Load Rating
Dynamic load rating is the maximum load
which a ball bearing screw assembly can
maintain for 1.0 million inches of travel (Inch
Series) or 1.0 million revolutions (Metric
Series).
Efficiency
Expressed as a percentage, the ability of
a ball screw assembly to convert torque
to thrust with minimal mechanical loss.
Thomson ball screws operate at over 90%
efficiency.
End Bearing Support (End Fixity)
The three basic bearing configurations that
are commonly used to support the ends of a
ball screw are.
a) A single journal or ball type bearing
(simple support).
b) A pair of back-to-back, angular contact
bearings to control end play (simple
support).
c) A pair of spaced bearings for added
rigidity (rigid support)
Four combinations of bearing supports are
used throughout this catalog for selection
purposes.
Flange
A metal mounting plate attached to a ball nut.
Gothic (or Ogival) Groove
A ball track cross-section shaped like a
Gothic arch.
Journal
1. A machined cylindrical surface.
2. End journals are machined ends of ball
bearing screws which allow for bearing
mounting.
Land Area
The area on the outside diameter of a ball
bearing screw between ball grooves.
Lead
The axial distance a screw travels during one
revolution.
Lead Error
The amount of positional error per foot (Inch
Series) or per 300mm (Metric Series) that is
inherent in linear motion on ball screws.
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
Glossary/Formulas
Lead Tolerance
The maximum variation from nominal,
measured in inches per foot, cumulative.
Left (Right) Hand Threads
The direction of threads on a shaft or in a
nut. Left hand means that the nut will move
away if rotated counterclockwise. Right hand
means the nut will move away if rotated
clockwise.
Linear Expansion
Ball screw and spline inner races have a
coefficient of linear expansion of 0.0000065
for each degree of change (F) and for each
inch of race length.
Load Carrying Balls
The balls in contact with the ball grooves of
both the nut and the screw for load carrying
purposes.
Load/Life Rating
The usable life of a ball bearing screw
assembly measured in inches of travel under
a specific load. The length of travel that 90
percent of a group of ball bearing screws
will complete, or exceed, before the first
evidence of fatigue develops.
Lubrication
To provide the maximum useful life, ball
splines and ball screws require lubrication.
In general, standard ball bearing lubrication
practices are acceptable.
Off Center Load (Eccentric)
A load tending to cock the ball nut on the
screw, reducing the rated life. This must be
considered in the selection of the ball screw
assembly.
Operating Loads
The normal operating force in pounds (lb.)
or Newtons (N) which the ball spline or ball
screw will experience is considered the
operating load. Contact us for assistance
in applications subject to widely fluctuating
loads or to optimize design.
www.thomsonlinear.com
Preload
The use of one group of bearing balls set in
opposition to another to remove axial lash
or backlash and increase ball bearing screw
stiffness. All axial backlash is eliminated in
preloading.
Protective Coatings
Standard outer races are supplied with
a black oxide coating. Inner races are
furnished with a phosphate coating. Contact
Application Engineering for additional
options.
Repeatability
A measure of constancy that is directly
related to axial backlash. Higher backlash
equates to lower repeatability and may
be corrected by preloading the ball nut if
required.
Root Diameter
The diameter of the screw shaft as measured
at the bottom of the ball track.
Screw Diameter (land diameter)
The outside diameter of the screw shaft.
Screw Starts
The integral number of independent threads
on the screw shaft; typically one, two, or four.
Side Load (radial)
A load from the side that will reduce the
rated life and must be considered in the
selection of the ball bearing screw.
Straightness
The linearity of a screw shaft. Precision
screw stock is .010 in/ft. with .040 inch max.
Precision Plus stock is typically .003 inch
over the entire length of the screw.
Stroke
The maximum length of extension of a ball
nut on the screw shaft.
Temperature (operating)
With suitable lubricants, ball splines and
ball screws will operate with a minimum
loss of efficiency between temperatures
of -65° to +300°F (-53° to +149°C). Contact
our application engineers for assistance in
applications with extreme temperatures.
Tension Load
Tension load is a load which would tend to
stretch the ball screw shaft.
Thrust Load
Thrust load is loading parallel to and
concentric with the centerline of the screw
shaft which acts continuously in one
direction. Thrust loading is the proper method
of attaching the load to the ball bearing
screw assembly.
Travel and Travel Rate
The distance a ball nut moves relative to
the screw shaft. Travel rate is the distance
traveled in a specific time period.
Spring Rate
A ratio of load versus deflection of a
component or of a total system. System
stiffness will always be less than its most
compliant member. Thus, in any system
where a ball screw is used and where
high system stiffness is a primary design
requirement, Thomson should be contacted
for recommendations based on the specifics
of the application.
Static Load
Static load is the maximum non-operating
load capacity above which brinelling of the
ball track occurs.
235
Glossary/Formulas
Some Useful Formulas for Ball Screw Assemblies
Torque, Rotary to Linear
Rotating the screw to translate the nut, or rotating the nut to translate the screw.
Ball Screw Assemblies
Torque = .177 x Load x Lead
(in lbs)
(lbs) (inches)
Lead Screw Assemblies
Torque = Load (lbs) x Lead (inches)
(in lbs)
2p x efficiency*
* Acme screw efficiency is variable with the helix angle of the threads, the friction of the material and the finish. See the efficiency formula below.
Torque, Linear to Rotary
Translating the screw to rotate the nut, or translating the nut to rotate the screw.
Ball Screw Assemblies
Torque = .143 x Load x Lead
(in lbs)
(lbs) (inches)
Lead Screw Assemblies
Torque = Load x Lead x Efficiency
(in lbs)
2p
The higher the lead of the screw the less effort required to backdrive either the screw or the nut.
As a rule, the lead of the screw should be more than 1/3 the diameter of the screw to satisfactorily backdrive.
Efficiency
Ball Screw Assemblies
Most ball screw assemblies are better than 90% efficient.
Lead Screw Assemblies
% Efficiency =
tan (helix angle)
x 100
tan (helix angle + arctan f)
f = coefficient of friction
Horsepower
Torque to Horsepower
hp = Torque (in lbs) x rpm
63,000
Column Load Strength*
(Based on Eulers Formula)
Pcr = 1.405 x 107 x Fc x d4
L2
Pcr = maximum loads (lbs)
Fc = end support factor
.25 one end fixed, other free
1.00 both ends supported
2.00 one end fixed, other supported
4.00 both ends fixed
d = root diameter of screw (in.)
L = distance between nut and load carrying bearing (in.)
When possible, design for tension loads to eliminate the buckling factor
and reduce the required screw size
Horsepower to Torque
Torque = 63,000 x hp
rpm
Critical Screw Shaft Speed
(Maximum rotational speed of screw)
Cs = Fc x 4.76 x 106 x
d
L2
Cs = critical speed (rpm)
d = root diameter of screw (in.)
L = length between supports (in.)
Fc = end support factor
.36 one end fixed, other free
1.00 both ends supported
1.47 one end fixed, other supported
2.23 both ends fixed
Critical shaft speed should be reduced to 80% to allow for other factors
such as alignment and straightness
* Formula only valid if L/d > 18.25.
236
www.thomsonlinear.com
Lead Screws, Ball Screws and Ball Splines
NOTES:
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237
NOTES:
238
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Lead Screws, Ball Screws and Ball Splines
Custom Capabilities
Thomson’s Advantage
In addition to our extensive standard ball and lead screw products,
Thomson has designed and manufactured custom engineered
products to fit the unique requirements of our customers. We
welcome and encourage requests for specialized products,
regardless of quantity or frequency of order. Our custom products
range from one-time-only units to high quantity requirements. A few
of our custom possibilities are listed below:
Custom Plastic Nuts
If cost or design constraints dictate a more integrated package, let
our engineering staff help you simplify your design. We offer a full
range of manufacturing capabilities from injection molding to CNC
machining with the largest selection of engineering plastics to suit
your applications and specifications.
• Our engineering staff will ensure your part is right the first time
• Full range of engineering plastics including internally lubricated
and high temperature thermoplastics
Precision Screw Products
Thomson provides engineering support and quality assurance for all
of its components and assemblies allowing our customers to focus on
the larger design picture. Our full range of designs and sizes for our
linear motion components allow greater design flexibility, while our
support staff ensures proper initial application and comprehensive
support once installed.
Components and Assemblies
From components to complete assemblies, Thomson always provides
the highest performance products to your applications. Let us assist
in your design to ensure proper operation of our components, or let us
provide you a complete solution.
• Complete solutions to your linear motion designs with our industry
tested assemblies
• Full complement of linear motion components: Rails (square and
round), Motor Mounts, Bearing Mounts, Ball Nuts, Acme Plastic
Nuts, Bronze Nuts, Anti-Backlash Nuts, Miniature Ball Nuts,
Bearings, and more
If you don’t see it, just ask us. Our application engineers will help you
specify these options and modifications or they will work with you to
create entirely new ones which will improve your machine’s
performance and lower your cost.
Design Ranges
During our 65 plus years of servicing customers, our engineers have
continuously developed new lead screw, ball screw, and spline
assemblies required for many of industry’s most unique, demanding
applications. Our current product offering represents our evolving and
expanding design and manufacturing capabilities.
The result of this experience is a portfolio of capabilities second to
none. Thomson is the pioneer in the design and manufacture of:
• High speed ball screws – up to 300 in/min
• Telescoping assemblies – up to five sections
• Hollow shafting for low inertia and low weight
• Safety nuts with up to five redundant load paths
• Nyliner nuts, offering extreme speeds and loads
• Ultimate accuracy assemblies – up to .0002 in/ft
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