Variable Speed Drives Catalog

User Manual: VariableSpeedDrivesCatalog

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VSD-1

Variable

Speed Drives

In This Section:

Econoline Series ■

Aluminoline Series ■

WB Series ■

Hi-Ratio Series ■

Hexadrive Series ■

Adjusta-Sheave Series ■

Adjustable Motor Bases ■

Companion Sheaves ■

Belts ■

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Safety Warning

When using Lovejoy products, you must follow these instructions and take the following precautions. Failure

to do so may cause the power transmission product to break and parts to be thrown with sufﬁcient force to

cause severe injury or death.

Refer to this Lovejoy Catalog for proper selection, sizing, horsepower, torque range, and speed range

of power transmission products, including elastomeric elements for couplings. Follow the installation

instructions included with the product, and in the individual product catalogs for proper installation of power

transmission products. Do not exceed catalog ratings.

During start up and operation of power transmission product, avoid sudden shock loads. Coupling assembly

should operate quietly and smoothly. If coupling assembly vibrates or makes beating sound, shut down

immediately, and recheck alignment. Shortly after initial operation and periodically thereafter, where

applicable, inspect coupling assembly for: alignment, wear of elastomeric element, bolt torques, and ﬂexing

elements for signs of fatigue. Do not operate coupling assembly if alignment is improper, or where applicable,

if elastomeric element is damaged, or worn to less than 75% of its original thickness.

For variable speed drives, variable speed pulley rim speeds must never exceed 10,500 feet per minute.

Companion pulley speeds beyond the ratings contained in this catalog are not recommended. For Fixed

Center Drives, do not start until a torque arm bracket is installed. Failure to install torque arm bracket will

cause torque arm to rotate rapidly and may cause severe injury from moving parts. Do not attempt to

disassemble spring loaded pulley because parts may be thrown with sufﬁcient force to cause injury or death.

Do not use any of these power transmission products for elevators, man lifts, or other devices that carry

people. If the power transmission product fails, the lift device could fall resulting in severe injury or death.

For all power transmission products, you must install suitable guards in accordance with OSHA and

American Society of Mechanical Engineers Standards. Do not start power transmission product before

suitable guards are in place. Failure to properly guard these products may result in severe injury or death

from personnel contacting moving parts or from parts being thrown from assembly in the event the power

transmission product fails.

If you have any questions, contact the Lovejoy Engineering Department at 1-630-852-0500.

VSD-2

Variable Speed Drives

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Overview ...............................................................................................344 ............... VSD-4

Adjustable Center > Selection Process ................................................348 ............... VSD-8

Fixed Center > Selection Process ........................................................349 ............... VSD-9

Adjustable Center Example > Selection Process .................................350 ............. VSD-10

Fixed Center Example > Selection Process .........................................351 ..............VSD-11

Quick Reference List > Selection Data ................................................. 352 ............. VSD-12

Econoline Series > Overview ...............................................................354 ............. VSD-14

Econoline Inch Bore / Keyway > Item Selection ...................................355 ............. VSD-15

Econoline Spring-Pulley > Dimensional Data .......................................356 ............. VSD-16

Econoline M Type > Item Selection ...................................................... 358 ............. VSD-18

Econoline M and MLA Type > Item Selection ......................................359 ............. VSD-19

Econoline Fixed Center Bore / Keyway > Item Selection .....................360 ............. VSD-20

Econoline Fixed Center Belts > Item Selection ....................................361 ............. VSD-21

Econoline Two Sided – Inch Bore / Keyway > Item Selection .............. 362 ............. VSD-22

Econoline Two Sided / Adjustable Center / Belts > Item Selection .......363 ............. VSD-23

Aluminoline > Overview ........................................................................364 ............. VSD-24

Aluminoline Models 145 and 145-HD > Item Selection ........................365 ............. VSD-25

Aluminoline Models 160 and 160-HD > Item Selection ........................366 ............. VSD-26

Aluminoline Models 170, 175 and 180 > Item Selection ......................367 ............. VSD-27

WB Series > Overview .........................................................................368 ............. VSD-28

WB Models 245, 260 and 260-HD > Item Selection .............................369 ............. VSD-29

WB Models 301E and 301E-HD > Item Selection ................................370 ............. VSD-30

WB Models 3030E and 3030E-HD > Item Selection ...........................371 ............. VSD-31

WB Models 303E and 303E-HD > Item Selection ................................372 ............. VSD-32

WB Models 401E, 402E and 403E > Item Selection ............................373 ............. VSD-33

WB Models 3050E and 3050E-HD > Item Selection ............................374 ............. VSD-34

WB Models 3075B, 3100B and 3150B > Item Selection ......................375 ............. VSD-35

WB Models M-007, 245 and 260 > Item Selection ...............................376 ............. VSD-36

WB Models M-1, 301C and 301D > Item Selection ..............................377 ............. VSD-37

Models M-3, 3030C and 3030D > Item Selection ................................. 378 ............. VSD-38

Hi-Ratio Series > Overview ..................................................................379 ............. VSD-39

Hi-Ratio Models M-14 and 1401 > Item Selection ................................380 ............. VSD-40

Hi-Ratio Models M-19, 1902 and 1903 > Item Selection ......................381 ............. VSD-41

Hi-Ratio Models M-23, 2303 and 2305 > Item Selection ......................382 ............. VSD-42

Hexadrive Series > Overview ...............................................................383 ............. VSD-43

Hexadrive Models 11407 and 11401 > Item Selection .........................385 ............. VSD-45

Hexadrive Models 11901, 11902 and 11903 > Item Selection .............. 386 ............. VSD-46

Hexadrive Models 12905 and 12907 > Item Selection .........................387 ............. VSD-47

Hexadrive Models 13207, 13210, 13220 and 13230 > Item Selection ...... 388 ............. VSD-48

Hexadrive Models 14407, 14420 and 14430 > Item Selection .............389 ............. VSD-49

Hexadrive Models 121407 and 21401 > Item Selection .......................390 ............. VSD-50

Hexadrive Models 21901, 21902 and 21903 > Item Selection .............391 ............. VSD-51

Hexadrive Models 22905 and22907 > Item Selection ..........................392 ............. VSD-52

Hexadrive Models 23207, 23210, 23220 and 23230 > Item Selection ...... 393 ............. VSD-53

Hexadrive Models 24407, 24410, 24420 and 24430 > Item Selection ...... 394 ............. VSD-54

Hexadrive Models M-007 and 21407 > Item Selection ......................... 395 ............. VSD-55

Hexadrive Models HM-3, Pulleys C and Z > Item Selection ................. 396 ............. VSD-56

Hexadrive Models HM-7, Pulleys C and Z > Item Selection ................. 397 ............. VSD-57

Hexadrive Models HM-30, Pulleys C and Z > Item Selection ............... 398 ............. VSD-58

Hexadrive HEC > Dimensional Data ....................................................399 ............. VSD-59

Hexadrive HLA > Dimensional Data ..................................................... 400 ............. VSD-60

Adjusta-Sheave Series > Dimensional Data ........................................401 ............. VSD-61

Adjustable Motor Bases > Overview ....................................................402 ............. VSD-62

Motor Base SMB > Dimensional Data ..................................................403 ............. VSD-63

Motor Base Sliding Dove Tail Type > Overview / Dimensional Data ....404 ............. VSD-64

Companion Sheaves – Flat / Grooved > Overview / Dimensional Data .....405 ............. VSD-65

Companion Sheaves Grooved > Dimensional Data .............................406 ............. VSD-66

Belts > Item Selection ........................................................................... 407 ............. VSD-67

Pulley Service Factors / Equations > Engineering Data .......................408 ............. VSD-68

Table of Contents

VSD-3

Variable Speed Drives

Running Section

Page No. Page No.

Running Section

Page No. Page No.

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VSD-4

Variable Speed Drives

Overview

Why Vary Speed?

Variable speed drives are needed because many applications are

not run at the same speed all of the time, due to the surrounding conditions.

Revolutions Per Minute (RPM) of the driven shaft need to be increased

or decreased when there are changes in load conditions, application

requirements, or other circumstances.

Variable speed belt drives achieve the versatility needed to maximize

application efﬁciency and productivity while remaining an inexpensive

solution. In the most typical installation, a belt connects a variable speed

pulley to a driven sheave. The pulley is mounted on a motor shaft and the

motor is at constant speed. Thus, the speed at the driven shaft is a ratio of

the pitch diameters of the pulley and sheave.

Note: n For this catalog, Lovejoy terminology will refer to any variable

pitch pulley as a “pulley” and to any non-variable pulley as a

sheave, driven sheave, or companion sheave.

The RPM at the driven shaft is found by the following simple equation:

ND = Nd x d/D

Where ND is the RPM at the driven shaft

d is the RPM of the driving shaft

d is the pitch diameter of the driver

D is the pitch diameter of the driven

Since Nd is always a ﬁxed RPM, it can then be seen that by changing the

pitch diameter of either d or D, the driven RPM will change.

Common Mounting Methods

1) Adjustable Center Drives

This type of belt drive consists of one pulley and one sheave. The pulley is

spring-loaded and is usually mounted on the driver shaft. The driver is most often

an electric motor which is mounted on an adjustable motor base that can be

moved toward or away from the driven sheave. The springs in the pulley take up

any slack in the belt when an adjustment is made.

When the base is adjusted, moving the pulley toward the sheave, the RPM at the

sheave increases. Likewise, when the base is adjusted away from the sheave,

the RPM at the sheave decreases. In the photo at right (Adjustable Center V-V

Drive), the drive is at its maximum speed position. This is called a V-V drive

because the driven sheave is grooved. The pulley is called two-side moveable

because it has two springs (one against each ﬂange) and two moveable ﬂanges.

Notice that the belt in the pulley is at the maximum pitch diameter, or “d” as

mentioned in the previous equation. As the base is adjusted away from

the sheave, “d” will decrease and the driven speed, ND, will decrease

proportionately.

The photos at right (Adjustable Center V-Flat Drive Maximum Speed Position

and Adjustable Center V-Flat Drive Min. Speed Position) show a V-Flat drive, so

called because the driven sheave is ﬂat, not grooved. The pulley is called a one-

side moveable type because it has only one spring and one moveable ﬂange.

Note that in the Adjustable Center V-Flat Maximum Speed Position ﬁgure, the

drive is at the maximum speed position, with the variable speed pulley ﬂanges

closed together and the belt at the maximum pitch diameter. As the motor base

is adjusted to increase the center distance between the motor and the driven

shaft, the moveable ﬂange on the variable speed pulley opens to allow the belt to

run at a smaller pitch diameter (Adjustable Center V-Flat Drive Minimum Speed

Position).

WARNING

You must refer to page VSD-2 (Page 342) for Important Safety Instructions and

Precautions for the selection and use of these products. Failure to follow the

instructions and precautions can result in severe injury or death.

Adjustable Center V-V Drive

Adjustable Center V-Flat Drive

Maximum Speed Position

Adjustable Center V-Flat Drive

Minimum Speed Position Continued

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Variable Speed Drives

Overview

Adjustable Center Angle Mount Drive

Fixed Center Drive

Note that the axial position of the belt on the ﬂat-faced companion

sheave changes as the drive moves through the speed range. This

illustrates the need for a ﬂat-faced companion sheave when using a

wide variable speed belt and a one-side moveable variable speed pulley.

The Adjustable Center Angle Mount Drive ﬁgure shows a more unusual

mounting, with a one-side moveable pulley driving a grooved sheave.

The motor base must be offset at an angle to keep the belt in line.

A typical Lovejoy adjustable center drive will have a speed ratio – that is,

the range of speed at the driven sheave – from 1.6 to 1 up to 3.8 to 1.

For example, with the right combination of pulley and sheave, you can

attain a speed range at the driven sheave of 1,800 to 600 RPM, 3 to 1

speed ratio.

An alternate mounting method may be used when the spring-loaded

pulley is mounted on the driven shaft, with the companion sheave

mounted on the driver shaft. With this arrangement, the horsepower at

the driven shaft is constant through most of the speed range, but the

torque decreases in proportion to the pitch diameter of the belt in the

spring-loaded pulley. Caution must be taken not to overspeed the driven

variable speed pulley beyond 10,500 FPM (feet per minute) rim speed.

2) Fixed Center Drives

This method of mounting requires no change in center distance

between the driver and driven units. Because the shaft center-to-center

distance does not change, this is called a ﬁxed center drive. The

usual arrangement has one pulley, the driver, which is mechanically

adjustable.

The adjustable pulley ﬂanges are opened or closed mechanically,

usually with a handwheel on the end of the pulley. The other pulley

is spring-loaded and compensates for belt slack when the adjustable

pulley is actuated.

When the adjustable driver pulley is fully opened, the belt is at its

minimum pitch diameter. At the same time, the spring-loaded driven

pulley is fully closed with the belt at its maximum pitch diameter. This

results in the slowest possible driven speed. As the adjustable pulley

ﬂanges are closed together, the driver pulley pitch diameter increases

while at the same time the spring-loaded pulley is forced by the drive

belt to open. This results in a smaller pitch diameter at the driven

member. The driven speed then increases until the adjustable pulley

is fully closed and the spring-loaded pulley is fully open (the maximum

speed position).

Speed change must always take place while the motor is running.

The Fixed Center Drive ﬁgure shows a typical arrangement, with the

adjustable pulley at minimum pitch diameter and the spring-loaded

pulley at maximum pitch diameter. This is the minimum speed position.

Fixed center drives are used where space is limited and/or where a

wider speed range is needed. They are sometimes called “compound

drives” because the ratio of the two pulleys is compounded, resulting in

a greater available driven speed range.

Speed ratios up to 11.5 to 1 are possible, but this is not necessarily in

the form of a speed decrease. For example, with a 1,750 RPM motor

and a Lovejoy HM-3/31901 drive package, the output speed at the

driven pulley could be as high as 4,850 RPM.

Horsepower vs. Torque

Adjustable center drives with the spring-loaded pulley as the driver

are constant torque drives. That is, for each variable speed pulley and

companion sheave combination, the torque at the sheave is constant.

Horsepower decreases in proportion to RPM at the driven sheave.

Fixed center drives are constant torque from minimum speed to driver

speed and constant horsepower from driver speed to maximum speed.

Notes: n All Lovejoy pulleys and sheaves are balanced for operation

at 1,750 RPM. Balancing for higher speed operation is

available–consult our Engineering Department.

n Lovejoy variable speed pulleys are bored to ﬁt standard

NEMA motor shafts. Consult our Customer Service

Department for availability of non-standard and metric

bores.

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VSD-6

Variable Speed Drives

Overview

Econoline Series

Aluminoline Series

Variable Speed Pulley Product Preview

Lovejoy offers the most complete line of non-enclosed variable speed belt drives

from fractional through 30 horsepower. Each component is made with the quality and

reliability that Lovejoy builds into all of its power transmission products.

Features

Very economical and reliable method of speed change ■

Allows the user to ﬁnd the ideal speed without changing sheaves and ■

belts. This is especially important on applications where ﬁnal driven

speed is critical and difﬁcult to attain with two ﬁxed-diameter sheaves.

Speed range within the ratio is inﬁnite, and speed change is accom-

plished quickly, while the drive is running

Can be used as a highly efﬁcient belt tensioner, with no adjustment ■

necessary

Offers a form of “soft start,” eliminating belt slip and premature wear ■

on belt drives with inherent high torque start-up requirements

Econoline Series

The Econoline Pulley series provides reliable variable speed service with a proven

design at an economical cost. Consisting of a wide selection of models, the Econoline

series is ideal for both adjustable and ﬁxed center drives using classic “A” and “B” (or

4L and 5L) section drive belts. This series also offers: driven speed ratios from 1.6 to 1

up to 2.7 to 1 and horsepower ranges from fractional through 5 HP @ 1,750 RPM motor

speed.

The ﬂanges are constructed of durable cast iron. Typical applications of this

maintenance-free pulley include: conveyors, mixers, small machine tools, mower

traction drives, printing equipment, packaging machines, and belt tensioners.

Aluminoline Series

Aluminoline variable speed pulleys offer the best possible belt alignment with the least

amount of overhung load. Used with “A” and “B” drive belts, these pulleys not only have

anodized aluminum ﬂanges which provide quiet operation with minimum vibration,

but are rated for 1/3 through 1-1/2 HP motors. These two-side moveable pulleys offer

greater speed ratios (up to 2.75 to 1).

Due to the corrosion-resistant properties of these pulleys, they are ideal for use on

agricultural machinery, food packaging and bottling equipment, baseball pitching

machines, and a variety of other products.

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Variable Speed Drives

Overview

WB Series

HI-Ratio Series

Hexadrive Series

Adjusta-Sheave Series

WB Series

Pulleys in the WB series use wide variable speed belts for the most efﬁcient

transmission of torque through the widest possible speed range. This two-side

moveable pulley series offers the best possible belt alignment when used with

a grooved companion sheave. WB pulleys provide maximum service when

lubricated through a convenient grease ﬁtting and offer sizes ranging from 6

to 13 inches in diameter, with the largest model capable of 15 HP. All models

greater than 1 HP feature durable cast iron ﬂanges (Models 245 and 260 are

made with lightweight, corrosion-resistant anodized aluminum ﬂanges).

These pulleys can be used on both adjustable and ﬁxed center drives.

Typical applications include: conveyors, printing presses, mixers, packaging

and bottle-ﬁlling machines, machine tools, and agricultural equipment.

Hi-Ratio Series

Hi-Ratio drives provide the unique combination of broader driven speed

ranges and lowest possible minimum driven speed. Three drive packages

are available, with horsepower ranges from 1/2 to 5, with a 1,750 RPM motor,

and speed ratios up to 11.5 to 1. They are ideal for use on machine tools and

mixing machinery.

Hexadrive Series

Hexadrive pulleys are the most durable variable speed pulleys available. The

hexagon-shaped center shaft efﬁciently transmits torque through the six hex

ﬂats for top performance and long life. The surface of the shaft is covered with

a resilient elastomer, which means there is no metal-to-metal contact on any

sliding surface and lubrication is not necessary.

These pulleys are available in adjustable or ﬁxed center drives and come

in two styles: one-side moveable for V-Flat drives, and two-side moveable

for V-V drives. Flanges are made of cast iron to provide a long-wearing belt

contact area. These pulleys provide size ranges from 6 inches up to 12.5

inches in diameter, and a maximum rating of 30 HP @ 1,750 RPM.

Some typical applications include: agricultural equipment, food packaging

machines, air handling systems, textile spinning frames, mixers, pumps,

machine tools, and foundry snag grinders.

Adjusta-Sheave Series

The Lovejoy Adjusta-Sheave can be a cost-saving alternative to a spring-

loaded pulley when speed change is infrequent. To change speeds, the drive

must be shut down (unlike other variable speed pulleys). All models use wide

variable speed belts.

The Adjusta-Sheave design eliminates the need for internal drive keys, thus

providing more efﬁcient transfer of power and longer life. The two cast iron

ﬂanges are moveable, allowing perfect belt alignment at all times. Four models

are available with ranges from 5 through 30 HP and speed ratios up to 2.5

to 1. Typical applications include: textile spinning frames, heating and air

conditioning equipment, pumps, etc.

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VSD-8

There are two common selection processes; one is for designing an

entire drive package, the other to select a replacement component part

of an existing drive, such as the variable speed pulley. It is important to

understand the complete drive selection process in order to do either. First,

review the “factors to consider” and the selection examples on this page.

Then follow these procedures:

Designing a Complete Drive Package

Step 1: Match the variable speed pulley with the motor horsepower and

speed, but consider the torque and HP required at the driven shaft

at all speeds. If actual torque and HP requirements are not known,

rely on the fact that variable speed pulley ratings are compatible

with the torque of the driver. Apply a service factor if needed.

Step 2: Detailed drive selection data can be found on pages associated

with the pulley that has been selected. Be sure the bore capacity

of the pulley is suitable for your application.

Step 3: Refer to the Application chart that applies to the pulley you have

chosen and select a companion sheave that suits the driven speed

requirement. If more than one sheave will provide the correct

speed range, select the largest one possible. This will provide

the greatest amount of torque. (Lovejoy only supplies companion

sheaves for wide variable speed belts.) You will also need to check

the correct style bushing, bored to the driven shaft size to ﬁt the

sheave (see page SF-17). With the Econoline and Aluminoline

series, the selection chart merely indicates the pitch diameter of

the sheave you need to use.

Step 4: Use the selection chart for the pulley/sheave combination you

have chosen to ﬁnd the distance between motor shaft and

driven shaft (center distance) that is nearest your requirement.

This will be the center distance at maximum speed position, or

the point at which the motor shaft and driven shaft are closest

together. Space must be provided in the machine to allow the

center distance to be increased enough to attain the complete

speed range. When you have found the center distance in the

chart, read up or across to select the correct drive belt. Lovejoy

only supplies variable speed belts. With the Econoline and

Aluminoline pulley series, our selection charts will specify the

pitch length of the correct V-belt to use.

Step 5: Select a suitable motor base from the catalog page for the pulley

you have selected, or by reviewing the information on pages

VSD-62 through VSD-64. You will need to know the NEMA motor

frame size for this step.

For a complete adjustable center drive package, you will need a variable

speed pulley, an adjustable motor base, a companion sheave with a

bushing, and a drive belt. Be sure to specify the bore sizes for the variable

speed pulley and the bushing (see page SF-17).

Variable Speed Drives

Adjustable Center

Selection Process

Typical Adjustable Center Drive

Factors to Consider

Steps An Selecting An Adjustable Center Belt Drive

Torque and Horsepower:

Variable speed drives with constant torque loads can usually be selected

by matching the variable speed pulley rating to that of the driver. Drive

selection begins by matching the HP ratings, but ﬁnal selection is based

on torque, HP and RPM at the driven sheave. The application charts in this

catalog specify driven speeds and torque ratings at the driven sheave for

each pulley/sheave combination.

Driven Speed Range (Ratio)

As a general rule, an adjustable center drive can attain a maximum driven

speed ratio of 3 to 1. Most ﬁxed center drives can attain ratios as high as 8

to 1, but part of the driven speed range is faster than the motor speed. In

all cases, pulleys that use variable speed belts will provide greater speed

range than those using “A” or “B” belts.

Space

In some cases the amount of available space will determine the size of the

pulley and whether to use an adjustable or ﬁxed center drive.

Maintenance

Econoline and Hexadrive pulleys are virtually maintenance-free. They do

not require lubrication or frequent speed change. Aluminoline and WB

pulleys require lubrication and occasional cycling through the speed range

for best results.

Retroﬁt

When replacing a variable speed pulley made by another manufacturer,

it is important to select a Lovejoy pulley that is the same style, uses the

same size belt and is as close as possible to the same diameter. The Quick

Reference List on VSD-12 provides this information at a glance. If you need

help with a pulley interchange, call our Customer Service Department.

Belt Selection

Wide variable speed belts offer several advantages over stock “A” and “B”

(or 4L and 5L) belts and should be considered for all variable speed pulley

drives. Variable speed belts are designed to operate over small pitch

diameters, offer a broader speed range and form themselves to the pulley

faces at all speeds.

Shaft Sizes

Lovejoy variable speed pulleys are bored to ﬁt standard NEMA motor

shafts. The bore range for each model corresponds to its horsepower

rating. Consult our Customer Service Department for availability of non-

standard and metric bores. Companion sheaves are bored for bushings for

ease of installation, optimum performance, and availability of product.

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Variable Speed Drives

Fixed Center

Selection Process

Replacing a Variable Speed Pulley

Step 1: Use the Quick Reference List on page VSD-12 and VSD-13 to

narrow down your choices based on the information you have. For

example, if you know the pulley diameter and belt size, check the

appropriate columns in the list and pick out all models that match.

Step 2 Check the dimensional and performance details from the

appropriate catalog page for the models you selected to ﬁnd the

best choice. In all replacement decisions, it is very important to

consider the pulley style – 1, 2, or 3 (see page VSD-12) to get the

best possible ﬁt to the existing drive. Do NOT try to use a Lovejoy

variable speed pulley with a belt that is not designed to drive. You

will not attain the advertised speed range, and you may experience

premature wear.

Typical Fixed Center Drive C and Z Mounting

Replacing a Companion Sheave

Step 1: For a grooved sheave, determine the outside diameter of the

sheave and the belt size. For a ﬂat-faced sheave, measure the

outside diameter and the face width.

Step 2: Select the correct sheave from catalog pages VSD-65 and

VSD-66.

Step 3: Replace the bushing (see page SF-17).

Replacing an Adjustable Motor Base

Step 1: Determine the NEMA motor frame size or motor foot-mount

dimensions.

Step 2: Select the correct base from the catalog pages VSD-62 through

VSD-64. If it is NOT a Lovejoy base that is being replaced, be

aware that the base mounting bolt locations may not match, and

new holes may need to be drilled to mount the Lovejoy base to the

machine.

Step 3: Check overall dimensions to be sure the base will ﬁt the allotted

space.

Selecting a Fixed Center Belt Drive

To select a ﬁxed center package, it is necessary to know the following

information:

Horsepower and RPM of driver unit. ■

Required speed range at the driven shaft. ■

Torque requirement at the driven shaft. ■

Shaft center-to-center distance. ■

Driver AND driven shaft sizes. ■

The relationship between driver and driven shafts (C vs. Z mount). Refer ■

to the drawing below.

Lovejoy makes four types of ﬁxed center drives: Econoline, WB, Hexadrive,

and Hi-Ratio. The proper series to use depends on the horsepower rating,

the required speed range, and the belt preference, as well as space and

economic considerations. Once you have the information listed above and

have selected the appropriate series, use the following procedure:

Step 1: Using the horsepower, driver speed, and required driven speed

range information from above, select the appropriate series from

Econoline, WB, Hi-Ratio, or Hexadrive.

Step 2: Select the correct manual driver pulley by choosing the model

that is rated for your motor HP and speed. Be sure the pulley

comes with a bore size that ﬁts your motor shaft. Contact Lovejoy

Customer Service for the availability of non-standard bores.

Step 3: Using the application chart for the pulley you have selected,

choose a driven spring-loaded pulley that will handle the HP and

torque requirement. Note that all Lovejoy ﬁxed center drives are

rated as constant horsepower from the base speed (motor speed)

to the maximum driven speed. They are constant torque drives

from base speed down to minimum driven speed. The ratings

shown are those at the driven pulley.

Replacing a Drive Component

Please keep the above steps in mind, even though they won’t all apply.

Continued

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VSD-10

Variable Speed Drives

Adjustable Center Example

Selection Process

IMPORTANT: Be sure to specify the correct driven pulley for the mounting

arrangement. For example, you need to specify an “R” sufﬁx (for reverse

mount) with the Econoline Series spring-loaded pulley if it is a “C” mount.

Also check to be sure the driven pulley is available in the bore size that will

ﬁt the driven shaft.

Step 4: Using the shaft center-to-center distance from “d”, select the

correct drive belt from the Selection Chart. The center distance

between the shafts must be held to the correct distance for the

drive belt that is used in order to attain the published speed range.

Drive belts are available only in certain lengths, so the center

distance may need to be altered from the original design in order

to suit the best available belt. If you have a center distance that is

not shown in the chart, refer to the formulas in the Variable Speed

Engineering Data on page VSD-68, or call Lovejoy Engineering for

assistance in calculating the correct center distance.

Step 5: Specify the Lovejoy Model 501 Torque Arm Bracket to prevent

rotation of the manual pulley handwheel so that it can be adjusted

while the motor is running. This item is NOT required for MLA or

HLA driver pulleys.

Step 6: For remote control or linear actuation of the manual pulley, refer

to the appropriate section in the Econoline (MLA), Hi-Ratio, or

Hexadrive (HEC, HLA) section of this catalog.

Aluminoline Selection Example

A variable speed pulley is needed for use on a plastic cut-off machine that

indexes material through a guillotine-type shear once every second. Inertia

of the shear is not high, but the load is pulsating up to 25% over the motor

torque. The motor is rated 1/2 HP @ 1,750 RPM with a NEMA 56 frame

(5/8 inch shaft), and a stock (“A” or “B” section) belt is preferred. Good

alignment and short center distance is a concern. The driven speed range

requirement is 800 to 1,600 RPM.

Step 1: Referring to the Service Factor chart on page VSD-68, a

service factor of 1.3 is recommended for pulsating loads. Motor

horsepower multiplied by the service factor equals a drive load of

0.65 HP. Either the Econoline of Aluminoline series could be used

with an “A” or “B” section belt, but in this case the Aluminoline is

better because it is two-side moveable and will maintain better belt

alignment with a short center distance.

Step 2: Both the Models 160 and 170 variable speed pulley are rated for

3/4 HP, which is closest to the drive load of 0.65. In our example,

the motor shaft is 5/8 inches, so we can use the Model 160.

Step 3: The Driven Sheave Selection chart for the Model 160 variable

speed driver pulley (see page VSD-26) shows that a 6-inch pitch

diameter companion sheave will provide a driven speed range

of 615 to 1,675 RPM when used with a 1,750 RPM motor. This

covers the required driven speed range.

WB Series Selection Example

A belt conveyor application requires a drive with a 2.8 to 1 speed ratio.

The drive will consist of a variable speed belt drive, a speed reducer, and a

chain drive from the reducer to the conveyor head pulley. The input speed

range to the reducer must range from 370 to 1,050 RPM. The motor is 1

HP @ 1,150 RPM, with a NEMA 145T frame and 7/8 inch shaft. The torque

into the reducer must be 50 in-lb. Center distance between the motor shaft

and the reducer input shaft is about 15 inches.

Step 1: The WB series is chosen to ﬁt into existing motor belt guards and

motor mounts (see page VSD-30).

Step 2: For 1 HP @ 1,150 RPM, the Model 301E variable speed driver

pulley with a 7/8 inch bore (to ﬁt the motor shaft) is selected.

Step 3: From the Driven Sheave Selection chart for the Model 301E

pulley, the 1922G8SK should be used because it offers a driven

speed range of 360 to 1,075 RPM, which covers the requirement

for this drive. Note that the torque rating for this drive 58 in-lb. This

is a constant torque output throughout the driven speed range.

An SK bushing is needed to attach the companion sheave to the

driven shaft.

Step 4: From the Belt Selection chart, under the column headed by the

1922G8SK sheave, read down to ﬁnd the center distance, then

follow to the left to ﬁnd the appropriate drive belt. The center

distance nearest to 15 inch in the chart is 15.4 inches. Notice that

the motor travel for full speed range with the 301E pulley is 3.5

inches, so the maximum center distance will be about 19 inches.

Step 5: Select a suitable motor base based on the NEMA motor frame size.

For a 145T frame, there are two choices: the Model 301 cast iron

base, or the Model SMB-184 steel base.

After assembling a complete drive package, you will end up ﬁve

components: a 301E x 7/8 inch variable speed pulley; a 1922G8SK

companion sheave; an SK bushing with a bore to ﬁt the driven shaft; a

1922V544 belt; and a 301 or SMB-184 motor base.

Continued

Selection Examples: Adjustable Center Drives

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Variable Speed Drives

Fixed Center Example

Selection Process

Step 4: The belt selection chart shows 7.9 inches as the minimum

distance for a 160 pulley and a 6 inch sheave. Moving across to

the left in that chart, the belt for that center distance is an A33.

You can see that the Model 160 pulley requires 2.7 inch travel to

achieve full speed range, so the maximum center distance will be

7.9 (minimum cd) + 2.7, or 10.6 inches.

Step 5: A suitable motor base must be selected based on the NEMA

motor frame size. For a 56 frame motor, there are several choices:

the Model 48/56 economy base, the Model 200 tilting base, the

SMB-143 steel sliding base, or on of the two cast iron bases,

145-60 and 135. After assembling the complete drive package, you will end up with four

components: a 160 x 5/8 inches variable speed pulley; a 6 inch pd

companion sheave for an “A” belt with a bore to ﬁt the driven shaft (not

supplied by Lovejoy); an A33 drive belt (not supplied by Lovejoy); and a

48/56, 200, SMB-143, 145-60, or 135 motor base.

Hexadrive Series Selection Example

A ﬁxed center variable speed drive is needed for a centrifugal pump that

has an 8 HP peak at 2,000 RPM. The motor is rated for 10 HP @ 1,750

RPM, with a 1-3/8 shaft. The pump shaft is 1-5/8 inches. Shaft center-

to-center distance is approximately 16-1/2 inches. There is no room to

accommodate an adjustable base or to move the motor back and forth

for speed adjustment, so a ﬁxed center drive is preferred. Motor shaft and

driven shaft both are oriented in the same direction, so this is a “C” drive

conﬁguration. The service factor for a centrifugal pump is 1.0 (see page

VSD-68).

Step 1: The Hexadrive is selected because of the horsepower

requirement. Fixed center drives are rated as constant HP drives

from base (motor) speed to maximum driven speed. According to

the ratings for 1,750 RPM motors, the drive package most suitable

for this 8 HP requirement is a 10 HP drive. Refer to the drive

selection data on page VSD-58 for a 10 HP drive.

Step 2: The HM-30 driver is selected, and based on the motor HP,

speed, and “C” mounting conﬁguration, the Model 34407 driven

pulley is most suitable. This drive is rated at 10 HP from 1,750

to 3,300 RPM driven speed, which is nearest to our 8 HP driven

requirement. The Driven Speed chart shows that, with a 1,750

RPM motor, this drive will provide a range of 640 to 3,200 RPM

at the pump. A check of stock bore sizes shows that the HM-30

is available in 1-3/8 inches (the motor shaft size), and the 34407

driven pulley is available with a 1-5/8 inch stock bore

Step 3: To select a drive belt, refer to the Belt Selection chart for the

HM-30 drive. The 4430V600 belt is chosen because it is closest to

the 16-1/2 inch center distance requirement. As the Belt Selection

chart shows, the actual center distance is 16.53 inches.

Important Note: When the driven speed range is critical, it is necessary to

set up the drive at the exact center distance speciﬁed for the belt selected.

Any variation from the correct center distance will result in a driven speed

range that is different from that shown in the drive selection charts.

Step 4: A Model 501 torque arm bracket is required to prevent rotation

of the driver pulley handwheel and allow speed adjustment while

the motor is running. If a remote control or linear actuated drive

is preferred, the same basic package can be used, but the driver

pulley will be a Model HEC-30 for electric remote control (also

order the CH-2601 control station) or a Model HEC-30 for electric

remote control (also order the CH-2601 control station) or a Model

HLA-30 for linear actuation. For details on these pulleys, refer to

pages VSD-59 and VSD-60. The 501 torque arm bracket is not

necessary when using the HLA pulley.

After assembling the complete drive package, you will end up with four

components: an HM-30 x 3/8 inch manual driver speed pulley; a 34407 x

5/8 inch spring loaded driven pulley; a 4430V600 belt; and a 501 torque

arm bracket.

Selection Examples: Fixed Center Drives

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VSD-12

Variable Speed Drives

Quick Reference List

Selection Data

Variable Speed Drives

Quick Reference List-Adjustable Center Drives

OAL LOD

VSD HP Rating Max Style Belt Weight

Page 1750 1150 Ratio Type

Model RPM RPM in in in lbs

3403 16 1/3 1/4 1.9 12.81 .75 3.38 A 2

3405 16 1/2 1/3 1.9 12.81 .75 3.38 A 2

4005 16 1/2 1/3 2.3 12.81 .75 4.00 A 2

5005A 16 1/2 1/3 1.8 13.50 .75 5.00 A 4

5005 17 1/2 1/3 2.7 13.50 .81 5.00 B 4

145 25 1/2 1/3 2.0 24.81 1.06 4.50 A 2

245 29 1/2 1/3 3.0 24.81 1.31 6.00 1422V 3

3407 16 3/4 1/2 1.9 12.81 .75 3.38 A 2

4007 16 3/4 1/2 2.3 12.81 .75 4.00 A 2

160 26 3/4 1/2 2.8 26.31 1.56 6.00 A 3

170 27 3/4 1/2 2.5 27.13 1.63 6.31 A or B 4

260 29 3/4 1/2 3.0 24.81 1.31 6.00 1422V 3

11407 45 1/2, 3/4 1/3, 1/2 2.6 13.56 1.00 6.00 1422V 5

21407 50 1/2, 3/4 1/3, 1/2 2.6 34.63 2.50 6.00 1422V 7

4010 16 13/4 2.3 12.81 .75 4.00 A 2

5010A 16 13/4 1.8 13.50 .75 5.00 A 4

5010 17 13/4 2.7 13.50 .81 5.00 B 4

6010 17 13/4 2.1 14.13 95 6.00 B 7

7010 17 13/4 1.8 14.13 .95 7.00 B 8

7210 17 13/4 1.6 14.38 1.02 8.25 B10

175 27 13/4 2.5 27.13 1.63 6.31 A or B 4

2510 23 13/4 2.3 34.31 2.31 5.00 B 5

11401 45 13/4 2.6 13.56 1.00 6.00 1422V 5

21401 50 13/4 2.6 34.63 2.50 6.00 1422V 7

301E 30 1, 1-1/2 3/4, 1 3.0 27.13 1.56 7.50 1922V 12

401E 33 1, 1-1/2 3/4, 1 3.8 28.75 1.81 11.00 2926V 24

5015A 16 1-1/2 11.8 13.50 .75 5.00 A 4

5015 17 1-1/2 12.7 13.50 .81 5.00 B 4

180 27 1-1/2 12.5 27.13 1.63 6.31 A or B 4

2515 23 1-1/2 12.3 34.31 2.31 5.00 B 5

11901 46 1-1/2 13.0 15.38 1.38 8.25 1922V 12

21901 51 1-1/2 13.0 36.75 3.63 8.25 1922V 12

6020 17 21-1/2 2.1 14.13 .95 6.00 B 7

7020 17 21-1/2 1.8 14.13 .95 7.00 B 8

8220 17 21-1/2 1.6 14.38 1.02 8.25 B10

2620 23 21-1/2 2.1 35.47 2.73 6.00 B 8

702E 33 21-1/2 3.8 28.75 1.81 11.00 2926V 24

11902 46 21-1/2 3.0 15.38 1.38 8.25 1922V 12

21902 51 21-1/2 3.0 36.75 3.63 8.25 1922V 12

3030E 31 3 2 3.0 28.75 2.00 8.50 2322V 17

303E 32 3 2 3.4 28.75 1.81 10.00 2322V 22

6030 17 3 2 2.1 14.13 .95 6.00 B 7

7303 17 3 2 1.8 14.13 .95 7.00 B 8

8230 17 3 2 1.6 14.38 1.02 8.25 B10

2630 23 3 2 2.1 35.47 2.73 6.00 B 8

2730 23 3 2 1.8 35.47 2.73 7.00 B 9

11903 46 3 2 3.0 15.38 1.38 8.25 1922V 12

21903 51 3 2 3.0 36.75 3.63 8.25 1922V 12

403E 33 3 2 3.8 28.75 1.81 11.00 2926V 24

7050 17 5 3 1.8 14.13 .95 7.00 B 8

8250 17 5 3 1.6 14.38 1.02 8.25 B10

2750 23 5 3 1.8 35.47 2.73 7.00 B 9

3050E 34 5 3 3.0 210.31 2.13 10.00 2926V 26

12905 47 5 3 3.0 16.43 1.88 10.00 2926V 25

22905 52 5 3 3.0 38.56 4.56 10.00 2926V 30

3075B 35 7-1/2 53.0 213.44 2.50 13.00 4430V 49

12907 47 7-1/2 53.0 16.43 1.88 10.00 2926V 25

22907 52 7-1/2 53.0 38.56 4.56 10.00 2926V 30

13207 48 7-1/2 52.3 17.88 2.25 10.75 3230HV 40

23207 53 7-1/2 52.3 39.38 5.00 10.75 3230HV 43

14407 49 7-1/2 52.7 18.63 2.38 12.50 4430V 47

24407 54 7-1/2 52.7 310.13 5.38 12.50 4430V 50

Style 1

One Flange Moveable

Style 2

Two Flange Moveable

Style 3

Two Flange Moveable

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Variable Speed Drives

Quick Reference List

Selection Data

Variable Speed Drives

Quick Reference List-Adjustable Center Drives Continued

OD OAL L

VSD HP Rating Max Style Belt Weight

Page 1750 1150 Ratio Type

Model RPM RPM in in in lbs

3100B 33 10 7-1/2 3.0 213.00 13.44 2.50 4430V 49

13210 46 10 7-1/2 2.3 110.75 7.88 2.25 3230HV 40

23210 51 10 7-1/2 2.3 310.75 9.38 5.00 3230HV 43

14410 47 10 7-1/2 2.7 112.50 8.63 2.38 4430V 47

24410 52 10 7-1/2 2.7 312.50 10.13 5.38 4430V 50

3150B 33 15 10 3.0 213.00 13.44 2.50 4430V 49

13220 46 15, 20 10, 15 2.3 110.75 7.88 2.25 3230HV 40

23220 51 15, 20 10, 15 2.3 310.75 9.38 5.00 3230HV 43

14420 47 15, 20 10, 15 2.7 112.50 8.63 2.38 4430V 47

24420 52 15, 20 10, 15 2.7 312.50 10.13 5.38 4430V 50

13230 46 25, 30 20, 25 2.3 110.75 7.88 2.25 3230HV 40

23230 51 25, 30 20, 25 2.3 310.75 9.38 5.00 3230HV 43

14430 47 25, 30 20, 25 2.7 112.50 8.63 2.38 4430V 47

24430 52 25, 30 20, 25 2.7 312.50 10.13 5.38 4430V 50

Variable Speed Drives

Quick Reference List-Fixed Center Drives

Driven VSD HP Rating Max Belt

Driver Series Page 1750 RPM Ratio Type

Pulley Econoline Series

M34 3400 / 4000 / 5000A 18-20 1/3 to 1-1/2 3.7 A

MLA34

MLA40 4000 / 5000A 18-20 1/2 to 1-1/2 5.3 A

M50 5000 / 6000 / 7000 / 8200 1/2 to 2 7.6 B

MLA50 5000 / 6000 / 7000 / 8200 18-20 1/2 to 3 5.8 B

M60

MLA60

5000 / 6000 / 7000 / 8200 18-20 1/2 to 5 4.7 B

M70

MLA70

WB Series

M-007 245 / 260 36 1/2 to 3/4 9.3 1422V

M-1 301C / D 37 1 to 1-1/2 9.0 1922V

M-3 3030C / D 37 2 to 3 9.3 2322V

Hi-Ratio Series

M-14 1400 40 1/2 to 1 8.5 1422V

M-19 1900 41 1 to 3 11.5 1922V

M-23 2300 42 3 to 5 12.1 2322V

Hexadrive Series

M-007 21407 55 1/2 to 3/4 7.6 1422V

HEC-007 59

HM-3

11900 / 31900

1 to 3 8.8 1922V

HEC-3 59

HLA-3 60

HM-7

12900 / 32900

5 to 7-1/2 8.7 2926V

HEC-7 29

HLA-7 60

HM-30

14400 / 34400

10 to 30 7.4 4430V

HEC-30 59

HLA-30 60

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VSD-14

Variable Speed Drives

Econoline Series

Overview

One-Side Moveable

1/3 Through 5 HP, “A” and “B” Belts

The Econoline Pulley series provides reliable variable speed service with a

proven design at an economical cost. The wide selection of models feature

compact size and reliability, which make them ideal for both adjustable and

ﬁxed center drives in all types of applications using classical “A” and “B” (or

4L and 5L) section drive belts.

Features

Driven speed ratio up to 7.6 to 1 (ﬁxed center drive) ■

Horsepower range from fractional through 5 HP @ 1,750 RPM motor ■

speed

Maximum bore capacity of 1-1/8 inches ■

Flanges made of durable cast iron ■

Spring-loaded pulleys are through-bored for all types of shaft mounting

arrangements. The exposed spring design allows for a cooler running

pulley and permits easy cleaning. Complete spring enclosures are available

as an option on some models.

Belt Selection

Econoline pulleys are designed speciﬁcally for “A” and “B” section drive

belts, though they can also be used with “4L” and “5L” belts if necessary.

Cogged, raw-edge belts have a deﬁnite advantage over wrapped types

because they readily form around small pitch diameters, and provide a

better arc of contact and provide best possible transmission of torque. If

a “slip clutching” effect is desirable to protect machinery in the event of

overload, a wrapped belt is recommended.

Adjustable Center Drives

An adjustable center drive using the Econoline variable speed driver pulley

is an economical, efﬁcient solution for many drive requirements. The typical

adjustable center drive consists of a spring-loaded pulley mounted on

the motor shaft, a companion sheave on the driven shaft, an adjustable

motor base, and a belt. A wide range of sizes and horsepower ratings are

available from the Econoline series to ﬁt the system requirements.

Standard “A” and “B” companion sheaves are recommended for use with

Econoline adjustable center drives. Since many Econoline pulleys have

only one moveable ﬂange and the companion sheaves are grooved, some

misalignment of the belt can be expected and is acceptable for most drives.

To minimize this misalignment, the belt should be aligned with the driven

sheave when the belt is in the median pitch diameter range of the variable

speed pulley, or in the range of principle operation. Due to the minimal

bottom contact area of “A” and “B” belts, ﬂat driven sheaves are NOT

recommended.

Fixed Center Drives

Econoline ﬁxed center drives utilize the same type of spring-loaded pulley

as an adjustable center drive, only it is normally mounted on the driven

shaft. The driver pulley is of similar size and construction, but it is manually

adjustable. A ﬁxed center drive offers greater driven speed range in a more

compact space. There are two types of controllable pulleys: the M type with

a handwheel and built-in adjusting device, and the MLA type that uses an

external control. The MLA type pulley can be used with the Lovejoy #76

Control Stand (see page VSD-21) or some other type of linear controller.

A ﬁxed center drive consists of four component parts: the adjustable driver

pulley, the spring-loaded driven pulley, the belt, and a Model 501 Torque

Arm Bracket. This bracket prevents the handwheel from spinning so speed

can be changed while the drive is running (see drawing on page VSD-21).

The 501 Torque Arm Bracket is NOT needed with the MLA type pulley.

A wide variety of drive packages are available from the Econoline Series

to suit your needs. Different diameter pulleys can be paired together to

achieve a variety of driven speed ranges, and all sizes of driven spring-

loaded pulleys are available in a variety of horsepower ratings.

Econoline Series

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Variable Speed Drives

Econoline Series - Inch Bore / Keyway

Item Selection

Features

A Drive Key

B Precision Calibrated Spring

C Cast Iron Flanges

D Thru-bore and Keyway

Econoline Series

Econoline Series - Inch Bore and Keyway UPC Number Selection Table

Bore and Keyway

1/2 5/8 3/4 7/8 11 1/8

Model No Keyway 3/16 x 3/32 3/16 x 3/32 3/16 x 3/32 1/4 x 1/8 1/4 x 1/8

3403 27806 27807 27808 N/A N/A N/A

3405 27809 27810 27811 N/A N/A N/A

3407 27812 28713 27814 N/A N/A N/A

4005 27815 27816 27817 N/A N/A N/A

4007 27818 27819 27820 N/A N/A N/A

4010 42043 42044 42045 N/A N/A N/A

5005A 37368 37369 37370 37371 37372 N/A

5010A 42097 42098 42099 42100 42110 N/A

5015A 42101 42102 42103 42104 42112 N/A

5005 47821 27822 27823 27824 27825 N/A

5010 47096 27093 27094 27095 27826 N/A

5015 27827 27828 27829 27830 27831 N/A

6010 N/A 27832 27833 27834 27835 27836

6020 N/A 27837 27838 27839 27840 27841

6030 N/A 27842 27843 27844 27845 27846

7010 N/A 27848 27849 27850 27851 27852

7020 N/A 27853 27854 27855 27856 27857

7030 N/A 27858 27859 27860 27861 27862

7050 N/A 27863 27864 27865 27866 27867

8210 N/A 27868 27869 27870 27871 27872

8220 N/A 27873 27874 27875 27876 27877

8230 N/A 27878 27879 27880 27881 27882

8250 N/A 27883 27884 27885 27886 27887

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

numbers shown.

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VSD-16

Variable Speed Drives

Econoline Spring – Pulley

Dimensional Data

Econoline Series

One-Side Moveable

Adjustable Center Drives

1/4 through 1-1/2 HP “A” Belt

See pages VSD 62-64 for

adjustable motor base selection.

Econoline Spring-Loaded Pulley Dimensional Data

OAL L1 L2 OD D1 D2

HP Rating Torque Ratio PD Belt Stock Total

1750 1150 Capacity Max Min Type Thru-Bores Travel

Model RPM RPM in-lb in in in in in in in in in in in in in in

3403 1/3 1/4 12

1.93:1 3.13 1.62 A2.81 0.75 0.94 3.38 2.16 1.38 1/2 5/8 3/4

— —

1.2

3405 1/2 1/3 18 — —

3407 3/4 1/2 27 — —

4005 1/2 1/3 18

2.31:1 3.75 1.62 A2.81 0.75 0.94 4.00 2.16 1.38 1/2 5/8 3/4

— —

1.6

4007 3/4 1/2 27 — —

4010 13/4 36 — —

5005A 1/2 1/3 18

1.81:1 4.75 2.62 A3.50 0.75 0.92 5.00 2.50 1.50 1/2 5/8 3/4 7/8* 1* 1.6

5010A 13/4 36

5015A 1-1/2 154

Econoline Adjustable Center Drives Sheave and Belt Selection Chart

PD Driven Speed Range “A” or “AX” Belt Type

Driven 1750 RPM Motor 1150 RPM Motor Minimum Center-to-Center Distance

Driver Sheave Max Min Max Min A26 A31 A33 A35 A38 A42 A46 A48 A51 A53 A55 A60 A62

Pulley RPM RPM RPM RPM in in in in in in in in in in in in in

3400

Series

4.0 1,370 710 900 465 8.0 10.5 11.5 12.5 14.0 16.0 18.0 19.0 20.5 21.5 22.5 25.0 26.0

5.0 1,095 570 720 375 7.2 9.7 10.7 11.7 13.2 15.2 17.2 18.2 19.7 20.7 21.7 24.2 25.2

6.0 910 475 600 310 6.3 8.9 9.9 10.9 12.4 14.4 16.4 17.4 18.9 19.9 20.9 23.4 24.4

8.0 685 355 450 235 —7.0 8.1 9.1 10.6 12.6 14.7 15.7 17.2 18.2 19.2 21.7 22.7

10.0 545 280 360 190 ———7.2 8.7 10.8 12.8 13.9 15.4 16.4 17.4 20.0 21.0

12.0 455 235 300 155 —————8.9 10.9 12.0 13.5 14.5 15.6 18.1 19.1

4000

Series

4.0 1,640 710 1,075 465 7.6 10.1 11.1 12.1 13.6 15.6 17.6 18.6 20.1 21.1 22.1 24.6 25.6

5.0 1,310 570 860 375 6.7 9.3 10.3 11.3 12.8 14.8 16.8 17.8 19.3 20.3 21.3 23.8 24.8

6.0 1,090 475 715 310 —8.4 9.4 10.4 11.9 13.9 15.9 16.9 18.4 19.4 20.4 23.0 24.0

8.0 820 355 540 235 —6.6 7.7 8.7 10.2 12.2 14.2 15.2 16.7 17.8 18.8 21.3 22.3

10.0 655 280 430 190 ————8.4 10.4 12.5 13.5 15.0 16.0 17.0 19.5 20.5

12.0 545 235 360 155 —————8.5 10.6 11.6 13.1 14.2 15.2 17.7 18.7

5000A

Series

4.0 2,075 1150 1,365 755 6.8 9.3 10.3 11.3 12.8 14.8 16.8 17.8 19.3 20.3 21.3 23.8 24.9

5.0 1,660 920 1,090 605 6.0 8.5 9.5 10.5 12.0 14.0 16.0 17.0 18.5 19.5 20.5 23.0 24.0

6.0 1,385 765 910 505 —7.7 8.7 9.7 11.2 13.2 15.2 16.2 17.7 18.7 19.7 22.2 23.2

8.0 1,040 575 680 380 ———8.0 9.5 11.5 13.5 14.5 16.0 17.0 18.0 20.6 21.6

10.0 830 460 545 305 ————7.7 9.7 11.8 12.8 14.3 15.3 16.3 18.8 19.8

12.0 690 385 455 255 ——————9.9 11.0 12.5 13.5 14.5 17.1 18.1

Note: n * indicates: That 7/8 and 1 inch bores for 5000 A Series are not thru bores.

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Variable Speed Drives

Econoline Spring – Pulley

Dimensional Data

Econoline Series

One-Side Moveable

Adjustable Center Drives

1/3 through 5 HP “B” Belt

See pages VSD 62-64 for

adjustable motor base selection.

Note: n * indicates: That 7/8 and 1 inch bores for 5000 Series are not thru bores. Minimum PD = 2.07 inches, Ratio = 2.25:1

Note: n * indicates: Except on 7/8 and 1 inch bores.

Econoline Spring – Loaded Pulley Dimensional Data

OAL L1 L2 OD D1 D2

HP Rating Torque Ratio PD Belt Stock Total

1750 1150 Capacity Max Min Type Thru-Bores Travel

Model RPM RPM in-lb in in in in in in in in in in in in in in

5005 1/2 1/3 18

2.70:1 4.65 1.72 B3.50 0.81 1.09 5.00 2.50 1.50 1/2 5/8 3/4 7/8* 1* 2.25010 13/4 36

5015 1-1/2 154

6010 13/4 36

2.10:1 5.65 2.69 B4.13 0.95 1.19 6.00 3.13 1.88 5/8 3/4 7/8 11-1/8 2.26020 21-1/2 72

6030 3 2 108

7010 13/4 36

1.80:1 6.65 3.69 B4.13 0.95 1.19 7.00 3.13 2.88 5/8 3/4 7/8 11-1/8 2.2

7020 21-1/2 72

7030 3 2 108

7050 5 3 180

8210 13/4 36

1.58:1 7.90 5.00 B4.38 1.02 1.23 8.25 3.13 2.38 5/8 3/4 7/8 11-1/8 2.2

8220 21-1/2 72

8230 3 2 108

8250 5 3 180

Econoline Adjustable Center Drives Sheave and Belt Selection Chart

PD Driven Speed Range “B” or “BX” Belt Type

Driven 1750 RPM Motor 1150 RPM Motor Minimum Center-to-Center Distance

Driver Sheave Max Min Max Min B26 B31 B33 B35 B38 B42 B46 B48 B51 B53 B55 B60 B62

Pulley RPM RPM RPM RPM in in in in in in in in in in in in in

5000

Series

4.0 2,030 755* 1,330 495* 7.1 9.6 10.6 11.6 13.1 15.1 17.1 18.1 19.6 20.6 21.6 24.1 25.1

5.0 1,625 605* 1,060 395* 6.3 8.8 9.8 10.8 12.3 14.3 16.3 17.3 18.8 19.8 20.8 23.3 24.3

6.0 1,350 505* 885 330* —8.0 9.0 10.0 11.5 13.5 15.5 16.5 18.0 19.0 20.0 22.5 23.5

8.0 1,015 380* 665 250* — — 7.3 8.3 9.8 11.8 13.8 14.9 16.4 17.4 18.4 20.9 21.9

10.0 810 305* 530 200* ———— 8.0 10.1 12.1 13.1 14.6 15.6 16.6 19.2 20.2

12.0 675 255* 440 165* ——————10.3 11.3 12.8 13.8 14.8 17.4 18.4

6000

Series

5.0 1,975 945 1,300 620 —8.0 9.0 10.0 11.5 13.5 15.5 16.5 18.0 19.0 20.0 22.5 23.5

6.0 1,645 790 1,080 520 —7.2 8.2 9.2 10.7 12.7 14.7 15.7 17.2 18.2 19.2 21.7 22.7

8.0 1,230 590 810 390 ——— 7.6 9.1 11.1 13.1 14.1 15.6 16.6 17.6 20.1 21.1

10.0 985 475 645 310 ————— 9.4 11.4 12.4 13.9 14.9 15.9 18.5 19.5

12.0 820 395 540 260 —————— 9.6 10.6 12.2 13.2 14.2 16.7 17.7

7000

Series

6.0 1,930 1080 1,270 710 — — 7.5 85.0 10.0 12.0 14.0 15.0 16.5 17.5 18.5 21.0 22.0

7.0 1,660 925 1,090 610 ——— 7.7 9.2 11.2 13.2 14.2 15.7 16.7 17.7 20.2 21.2

8.0 1,450 810 950 535 ———— 8.4 10.4 12.4 13.4 14.9 15.9 16.9 19.4 20.4

10.0 1,160 650 760 425 ——————10.7 11.7 13.2 14.2 15.2 17.7 18.7

12.0 965 540 635 355 ———————10.0 11.5 12.5 13.5 16.0 17.0

8200

Series

6.0 2,300 1460 1,500 960 ——— 7.4 8.9 10.9 12.9 13.9 15.4 16.5 17.5 20.0 21.0

8.0 1,725 1100 1,130 720 ————— 9.4 11.4 12.4 13.9 14.9 15.9 18.4 19.4

10.0 1,380 880 900 580 —————— 9.8 10.8 12.3 13.3 14.3 16.8 17.8

12.0 1,150 730 750 480 ————————10.6 11.6 12.6 15.1 16.1

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Variable Speed Drives

Econoline M Type – Inch Bore / Keyway

Item Selection

Econoline Series

Fixed Center Drives

1/3 through 5 HP

“A” and “B” Belts

The Econoline ﬁxed center drive uses a driver pulley that is manually adjustable. (Refer

to the description of Econoline ﬁxed center drives on page VSD-14). There are two types

of controllable pulleys: the M type with a handwheel and built-in adjusting device, and

the MLA type that uses an external control. The MLA type pulley can be used with the

Lovejoy Model 76 Control Stand or some other type of linear controller.

Econoline M Type

Econoline MLA Type Model 76 Control Stand

[Lovejoy UPC number 20021]

Econoline M Type Manual Pulleys - Inch Bore and Keyway UPC Number Selection Table

Pd HP Belt Bore and Keyway

Max Min Range1Type 1/2 5/8 3/4 7/8 11-1/8

Model in in No Keyway 3/16 x 3/32 3/16 x 3/32 3/16 x 3/32 1/4 x 1/8 1/4 x 1/8

M-34 3.13 1.62 1/3-3/4 A31582 35183 31584 N/A N/A N/A

M-50 4.65 1.60 1/2-2 B31586 31587 31588 31589 N/A N/A

M-60 5.65 2.34 1/2-3 B N/A 31617 31618 31619 31620 31621

M-70 6.65 3.34 1/2-5 BN/A 37299 37300 37301 37302 37303

Notes: n 1 indicates: Horsepower and torque rating of each of these pulleys is dependent upon the driven spring-loaded pulley with

which it is matched. Refer to Drive Selection chart on page VSD-19 for details.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the numbers shown.

Notes: n 1 indicates: Horsepower and torque rating of each of these pulleys is dependent upon the driven spring-loaded pulley with

which it is matched. Refer to Drive Selection chart on page VSD-19 for details.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the numbers shown.

Econoline MLA Type Manual Pulleys - Inch Bore and Keyway UPC Number Selection Table

Pd HP Belt Bore and Keyway

Max Min Range1Type 1/2 5/8 3/4 7/8 11-1/8

Model in in No Keyway 3/16 x 3/32 3/16 x 3/32 3/16 x 3/32 1/4 x 1/8 1/4 x 1/8

MLA-34 3.13 1.62 1/3-3/4 A42591 42904 42905 N/A N/A N/A

MLA-40 3.75 1.62 1/2-1-1/2 A42906 42581 42907 N/A N/A N/A

MLA-50 4.65 1.60 1/2-2 B42908 42909 42910 42911 N/A N/A

MLA-60 5.65 2.34 1/2-3 BN/A 42912 42913 42914 42915 42916

MLA-70 6.65 3.34 1/2-5 BN/A 42917 42918 42919 42920 42921

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Variable Speed Drives

Econoline M and MLA Type

Item Selection

Econoline Series

Fixed Center Drives

1/3 through 5 HP

“A” and “B” Belts

Econoline M and MLA Drive Selection Table

Pulley Model Combinations Ratio HP Ratings with Driven Speed Max Torque Belt

Driven Spring-Loaded 1750 RPM Motor Ranges 1750 Of Driven Type

“Z” “C” Rating At 1750 HP Rating RPM Motor* Pulley

To Max RPM of At Min RPM of Min Max

Driver Driven Pulley Driven Pulley

Manual HP HP RPM RPM in-lb

M34 3403 3403R

3.7:1

0.33 0.17

910 3380

or 3405 3405R 0.50 0.25 18

MLA34 3407 3407R 0.75 0.39 27

M34 or 4005 4005R 3.0:1 0.50 0.22 760 2300 18 A

MLA34 4007 4007R 0.75 0.32 27

M34 5005A 5005AR

2.6:1

0.50 0.17

600 1540

Aor 5010A 5010AR 1.00 0.34 36

MLA34 5015A 5015AR 1.50 0.51 54

MLA40 4005 4005R 5.3:1 0.50 0.22 760 4050 18 A

4007 4007R 0.75 0.32 27

MLA40

5005A 5005AR

3.8:1

0.50 0.27

600 2280

A5010A 5010AR 1.00 0.55 36

5015A 5015AR 1.50 0.83 54

M50 5005 5005R

7.6:1

0.50 0.17

610 4640

Bor 5010 5010R 1.00 0.34 36

MLA50 5015 5015R 1.50 0.52 51

M50 or 6010 6010R 5.5:1 1.00 0.28 500 2760 36 B

MLA50 6020 6020R 2.00 0.57 72

M50 or 7010 7010R 4.5:1 1.00 0.24 430 1940 36 B

MLA50 7020 7020R 2.00 0.48 72

M50 or 8210 8210R 4.0:1 1.00 0.20 360 1440 36 B

MLA50 8220 8220R 2.00 0.41 72

M60 5005 5005R

5.8:1

0.50 0.25

890 5190

or 5010 5010R 1.00 0.50 36

MLA60 5015 5015R 1.50 0.75 54

M60 6010 6010R

4.8:1

1.00 0.41

730 3500

or 6020 6020R 2.00 0.82 72

MLA60 6030 6030R 3.00 1.23 108

M60 7010 7010R

4.3:1

1.00 0.35

620 2660

or 7020 7020R 2.00 0.70 72

MLA60 7030 7030R 3.00 1.06 108

M60 8210 8210R

3.7:1

1.00 0.29

520 1910

or 8220 8220R 2.00 0.59 72

MLA60 8230 8230R 3.00 0.89 108

M70 5005 5005R

4.7:1

0.50 0.36

1260 5990

or 5010 5010R 1.00 0.72 36

MLA70 5015 5015R 1.50 1.08 54

M70 6010 6010R

3.8:1

1.00 0.59

1040 4000

or 6020 6020R 2.00 1.19 72

MLA70 6030 6030R 3.00 1.78 108

M70 or MLA70

7010 7010R

3.4:1

1.00 0.50

880 3020

7020 7020R 2.00 0.99 72

7030 7030R 3.00 1.49 108

7050 7050R 5.00 2.49 180

M70 or MLA70

8210 8210R

3.1:1

1.00 0.42

750 2360

8220 8220R 2.00 0.83 72

8230 8230R 3.00 1.25 108

8250 8250R 5.00 2.09 180

Note: n * indicates: The driven speed ranges and resulting ratios shown in this chart are derived from mathematical calculations based upon exact center

distance, constant motor speed and manufacturers’ belt speciﬁcations. Actual results will differ due to variations in any of these factors. TO FIND

THE DRIVEN SPEED RANGE WITH AN 1,150 RPM MOTOR, MULTIPLY BY 0.666.

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Variable Speed Drives

Econoline Fixed Center

Item Selection

Econoline Series

Fixed Center Drives

1/3 through 5 HP

“A” and “B” Belts

"MLA"

Driver Pulley Requires

External Control

"M"

Driver Pulley With

Handwheel Control

C–Mount

Driven Pulley (R)

Z–Mount

Driven Pulley

Econoline Fixed Center Dimensional Data

OD1 OAL1 L2 OD2 OAL3 L3 D1 L1 OAL2 L D

Model Belt Stock Bore Bore

Driven Pulley Size Manual Spring-Loaded Depth

Driver “C” “Z” Bore1 Bore2

Pulley in in in in in in in in in in in in in in

M34 3400-R 3400 A1/2 5/8 3/4 — — 1/2 5/8 3/4 — — 3.38 5.38 0.94 1.69 3.38 2.81 0.75 2.16 1.12 4.28 3.94 2.25

or 4000-R 4000 A1/2 5/8 3/4 — — 1/2 5/8 3/4 — — 3.38 5.38 0.94 1.69 4.00 2.81 0.75 2.16 1.12 4.28 3.94 2.25

MLA34 5000A-R 5000A A1/2 5/8 3/4 — — 1/2 5/8 3/4 7/8 —3.38 5.38 0.94 1.69 5.00 3.50 0.75 2.50 1.81 4.28 3.94 2.25

MLA40

4000-R 4000 A1/2 5/8 3/4 — — 1/2 5/8 3/4 —4.00 N/A 0.94 2.50 4.00 2.81 0.75 2.16 1.12 3.56 3.12 2.00

5000A-R 5000A A1/2 5/8 3/4 — — 1/2 5/8 3/4 7/8 —4.00 N/A 0.94 2.50 5.00 3.50 0.75 2.50 1.81 3.56 3.12 2.00

M50 or

MLA50

5000-R 5000 B1/2 5/8 3/4 7/8 —1/2 5/8 3/4 7/8 —5.00 5.69 1.06 2.00 5.00 3.50 0.81 2.50 1.62 4.62 4.12 2.25

6000-R 6000 B1/2 5/8 3/4 7/8 —5/8 3/4 7/8 11-1/8 5.00 5.69 1.06 2.00 6.00 4.12 0.95 3.00 2.12 4.62 4.12 2.25

7000-R 7000 B1/2 5/8 3/4 7/8 —5/8 3/4 7/8 11-1/8 5.00 5.69 1.06 2.00 7.00 4.12 0.95 3.00 2.12 4.62 4.12 2.25

8200-R 8200 B1/2 5/8 3/4 7/8 —5/8 3/4 7/8 11-1/8 5.00 5.69 1.06 2.00 8.25 4.38 1.02 3.00 2.30 4.62 4.12 2.25

M60 or

MLA60

5000-R 5000 B5/8 3/4 7/8 11-1/8 1/2 5/8 3/4 7/8 —6.00 6.69 1.23 2.75 5.00 3.50 0.81 2.50 1.46 5.50 5.00 2.75

6000-R 6000 B5/8 3/4 7/8 11-1/8 5/8 3/4 7/8 11-1/8 6.00 6.69 1.23 2.75 6.00 4.12 0.95 3.00 1.95 5.50 5.00 2.75

7000-R 7000 B5/8 3/4 7/8 11-1/8 5/8 3/4 7/8 11-1/8 6.00 6.69 1.23 2.75 7.00 4.12 0.95 3.00 1.95 5.50 5.00 2.75

8200-R 8200 B5/8 3/4 7/8 11-1/8 5/8 3/4 7/8 11-1/8 6.00 6.69 1.23 2.75 8.25 4.38 1.02 3.00 2.12 5.50 5.00 2.75

M70 or

MLA70

5000-R 5000 B5/8 3/4 7/8 11-1/8 1/2 5/8 3/4 7/8 —7.00 6.69 1.23 2.75 5.00 3.50 0.81 2.50 1.46 5.50 5.00 2.75

6000-R 6000 B5/8 3/4 7/8 11-1/8 5/8 3/4 7/8 11-1/8 7.00 6.69 1.23 2.75 6.00 4.12 0.95 3.00 1.95 5.50 5.00 2.75

7000-R 7000 B5/8 3/4 7/8 11-1/8 5/8 3/4 7/8 11-1/8 7.00 6.69 1.23 2.75 7.00 4.12 0.95 3.00 1.95 5.50 5.00 2.75

8200-R 8200 B5/8 3/4 7/8 11-1/8 5/8 3/4 7/8 11-1/8 7.00 6.69 1.23 2.75 8.25 4.38 1.02 3.00 2.12 5.50 5.00 2.75

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Variable Speed Drives

Econoline Fixed Center Belts

Item Selection

Model 76 Control Stand Assembly Center-To-Center Distance

Econoline Series

Econoline Fixed Center Drives Belt Selection Table

Driven Belt Belt Size2 Center-to-Center Distance

Driver Pulley Size 26 31 33 35 38 42 46 48 51 53 56 60 62

Pulley in in in in in in in in in in in in in

M34 or

MLA34

3400 A9.9 12.4 13.4 14.4 15.9 17.9 19.9 20.9 22.4 23.4 24.4 26.9 27.9

4000 A9.3 11.9 12.9 13.9 15.4 17.4 19.4 20.4 21.9 22.9 23.9 26.4 27.4

5000A A8.5 11.0 12.0 13.0 14.5 16.5 18.5 19.5 21.1 22.1 23.1 25.6 26.6

MLA40

4000 A9.3 11.9 12.9 13.9 15.4 17.4 19.4 20.4 21.9 22.9 23.9 26.4 27.4

5000A A8.5 11.0 12.0 13.0 14.5 16.5 18.5 19.5 21.1 22.1 23.1 25.6 26.6

M50 or

MLA50

5000 B8.8 11.3 12.4 13.4 14.9 16.9 18.9 19.9 21.4 22.4 23.4 25.9 26.9

6000 B7.9 10.5 11.5 12.5 14.0 16.0 18.0 19.0 20.6 21.6 22.6 25.1 26.1

7000 B7.0 9.5 10.6 11.6 13.1 15.1 17.2 18.2 19.7 20.7 21.7 24.2 25.2

8200 B — 8.3 9.4 10.4 11.9 14.0 16.0 17.0 18.6 19.6 20.6 23.1 24.1

M60 or

MLA60

5000 B8.3 10.8 11.8 12.8 14.3 16.3 18.4 19.4 20.9 21.9 22.9 25.4 26.4

6000 B7.4 10.0 11.0 12.0 13.5 15.5 17.5 18.5 20.0 21.0 22.0 24.5 25.5

7000 B — 9.1 10.1 11.1 12.6 14.6 16.6 17.7 19.2 20.2 21.2 23.7 24.7

82000 B — 7.9 8.9 9.9 11.5 13.5 15.5 16.5 18.1 19.1 20.1 22.6 23.6

M70 or

MLA70

5000 B7.6 10.1 11.1 12.1 13.6 15.6 17.6 18.6 20.1 21.1 22.1 24.6 25.6

6000 B — 9.3 10.3 11.3 12.8 14.8 16.8 17.8 19.3 20.3 21.3 23.8 24.8

7000 B — 8.4 9.4 10.4 11.9 13.9 15.9 16.9 18.5 19.5 20.5 23.0 24.0

8200 B — — 8.3 9.3 10.8 12.8 14.9 15.9 17.4 18.4 19.4 21.9 22.9

Notes: n 2 indicates: “Belt Size” is NOT the same as belt pitch length, but refers to the Industry Standard length designation. For

example, the M50/6000 drive package with a center distance of 12.5 inches would use a B35 belt.

n Center distances are based on installation with the belt in the Minimum PD position of the driver pulley and at the

Maximum PD of the driven pulley.

501 Torque Arm Bracket

Fixed center drive assemblies require a torque arm bracket to prevent the

handwheel from spinning. This allows speed to be changed while the drive is

running. This bracket may be used with Econoline, WB, Hi-Ratio, and Hexadrive

Fixed Center Drives. Bracket is NOT needed with the MLA type pulley. For

ordering, use Lovejoy UPC number 685144 19952.

Model 501 Torque Arm Bracket

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Variable Speed Drives

Econoline Two Sided – Inch Bore / Keyway

Item Selection

Econoline Two-Side Moveable

Econoline Series

Two-Side Moveable

Our new two-side moveable Econoline pulleys are ideal for adjustable center applications where

shaft-to-shaft distances are very short and belt misalignment cannot be tolerated, or in those

instances where this style needs replacement.

Features

Three diameters (5, 6 and 7 inches) ■

Six models, rated for 1 through 5 HP @ 1,750 RPM ■

Speed ratios up to 2.3 to 1 ■

Durable cast iron ﬂanges ■

Use with standard “B” section drive belts ■

Belt alignment is maintained at all speeds ■

Econoline Two Side Moveable Spring-Loaded Pulleys

- Inch Bore and Keyway UPC Number Selection Table

Bore & Keyway

5/8 3/4 7/8 11-1/8

Model 3/16 x 3/32 3/16 x 3/32 3/16 x 3/32 1/4 x 1/8 1/4 x 1/8

2510 57606 57607 57608 N/A N/A

2515 57599 57600 57601 N/A N/A

2620 57643 57644 57645 57646 57647

2630 57648 57649 57650 57651 57652

2730 57617 57618 57619 57620 57621

2750 57622 57623 57624 57625 57626

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the numbers shown.

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Variable Speed Drives

Econoline Two Sided – Adjustable Center / Belts

Item Selection

Econoline Series

Two-Side Moveable

Adjustable Center Drives

3/4 through 5 HP

“B” Belt

See pages VSD 62-64 for

adjustable motor base selection.

Econoline Two-Side Moveable Dimensional Data

OAL LOD D

HP Rating Model Torque Ratio PD Belt Bore Stock Total

RPM Capacity Max Min Size Depth Thru-Bores Travel

1750 1150 in-lb in in in in in in in in in in in in in

13/4 2510 36 2.3:1 4.65 2.00 B4.06 2.18 5.00 2.67 2.50 5/8 3/4 7/8 — — 1.9

1-1/2 12515 54 2.3:1 4.65 2.00 B4.06 2.18 5.00 2.67 2.50 5/8 3/4 7/8 — — 1.9

21-1/2 2620 72 2.1:1 5.65 2.69 B5.06 2.53 6.00 3.13 3.50 5/8 3/4 7/8 11-1/8 2.2

3 2 2630 108 2.1:1 5.65 2.69 B5.06 2.53 6.00 3.13 3.50 5/8 3/4 7/8 11-1/8 2.2

3 2 2730 108 1.8:1 6.65 3.69 B5.06 2.53 7.00 3.13 3.50 5/8 3/4 7/8 11-1/8 2.2

5 3 2750 180 1.8:1 6.65 3.69 B5.06 2.53 7.00 3.13 3.50 5/8 3/4 7/8 11-1/8 2.2

Econoline Adjustable Center Drives Sheave and Belt Selection Table

PD Driven Speed Range “B” or “BX” Belt Size

Driven 1750 RPM Motor 1150 RPM Motor Minimum Center-to-Center Distance

Driver Sheave Max Min Max Min B26 B31 B33 B35 B38 B42 B46 B48 B51 B53 B55 B60 B62

Pulley in RPM RPM RPM RPM in in in in in in in in in in in in in

2510 or

2515

4.0 2,030 880 1,330 580 7.1 9.6 10.6 11.6 13.1 15.1 17.1 18.1 19.6 20.6 21.6 24.1 25.1

5.0 1,620 700 1,060 460 6.3 8.8 9.8 10.8 12.3 14.3 16.3 17.3 18.8 19.8 20.8 23.3 24.3

6.0 1,350 590 890 390 —8.0 9.0 10.0 11.5 13.5 15.5 16.5 18.0 19.0 20.0 22.5 23.5

8.0 1,010 440 660 290 — — 7.3 8.3 9.8 11.8 13.8 14.9 16.4 17.4 18.4 20.9 21.9

10.0 810 350 530 230 ————8.0 10.1 12.1 13.1 14.6 15.6 16.6 19.0 20.2

12.0 670 300 440 200 ——————10.3 11.3 12.8 13.8 14.8 17.4 18.4

2620 or

2630

5.0 1,970 950 1,290 620 —8.0 9.0 10.0 11.5 13.5 15.5 16.5 18.0 19.0 20.0 22.5 23.5

6.0 1,640 790 1,080 520 —7.2 8.2 9.2 10.7 12.7 14.7 15.7 17.2 18.2 19.2 21.7 22.7

8.0 1,230 590 810 390 ———7.6 9.1 11.1 13.1 14.1 15.6 16.6 17.6 20.1 21.1

10.0 980 480 640 310 —————9.4 11.4 12.4 13.9 14.9 15.9 18.5 19.5

12.0 820 400 540 260 ——————9.6 10.6 12.2 13.2 14.2 16.7 17.7

2730 or

2750

6.0 1,930 1,080 1,270 710 — — 7.5 85.0 10.0 12.0 14.0 15.0 16.5 17.5 18.5 21.0 22.0

7.0 1,660 930 1,090 610 ———7.7 9.2 11.2 13.2 14.2 15.7 16.7 17.7 20.2 21.2

8.0 1,450 810 950 530 ————8.4 10.4 12.4 13.4 14.9 15.9 16.9 19.4 20.4

10.0 1,160 650 760 430 ——————10.7 11.7 13.2 14.2 15.2 17.7 18.7

12.0 960 540 630 360 ———————10.0 11.5 12.5 13.5 16.0 17.0

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Variable Speed Drives

Aluminoline Series

Overview

Aluminoline Series

Two-Side Moveable

1/3 through 1-1/2 HP

“A” and “B” Belts

Aluminoline variable speed pulleys are designed for the best possible belt

alignment with the least amount of overhung load. Flanges are made of a

lightweight, corrosion-resistant aluminum, which is hard-coat anodized for long

life. The aluminum ﬂanges provide quiet operation with minimum vibration.

These pulleys are used with classical “A” and “B” drive belts.

Aluminoline pulleys offer maximum service when lubricated through a

convenient grease ﬁtting located on the end of the pulley shaft.

Features

Ratings for 1/3 through 1-1/2 HP motors ■

Unique “intermeshing” ﬂange design ■

Greater speed ratios (up to 2.75 to 1) with a narrow-belt adjustable center ■

drive than any other pulley

Belt Selection

Aluminoline variable speed pulleys are designed to drive standard “A” and

“B” section belts. Due to the intermeshing ﬂange design, it is best to use a

wrapped belt or one without cogs.

Adjustable Center Drives

The typical adjustable center drive consists of the Aluminoline pulley mounted

on the motor shaft, a companion sheave on the driven shaft, an adjustable

motor base and a belt. Standard “A” and “B” ﬁxed diameter sheaves should

be used as driven companion sheaves. Belt alignment will be maintained

throughout the speed range because the Aluminoline pulleys are two-side

moveable. Due to the minimal bottom contact area of “A” and “B” belts, ﬂat

driven sheaves are NOT recommended.

Aluminoline Series Pulley

Typical “V-V” Adjustable Center Drive

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Variable Speed Drives

Aluminoline Models 145 and 145-HD

Item Selection

Aluminoline Series

Two-Side Moveable

Adjustable Center Drives

1/3 through 3/4 HP

“A” Belt

Ratio 2 to 1

4.50

2.00

Model 145 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18523 1/2

2.10 4.25 18 1/2 1/3

18525 5/8

18526 3/4

Model 145-HD Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

42156 1/2

2.10 4.25 27 3/4 1/2

18533 5/8

42157 3/4

Note: n When referencing the Lovejoy UPC number in this table, include

685144 as a preﬁx to the numbers shown in the tables.

145 / 145-HD Driven Sheave Selection Table

PD Driven Speed Range Driven Torque

Driven 1750 RPM Motor 1150 RPM Motor 145 145-HD

Sheave Min Max Min Max

in RPM RPM RPM RPM in-lb in-lb

4.0 920 1,855 605 1,220 17 19

5.0 735 1,485 485 975 21 24

6.0 615 1,235 405 810 25 28

8.0 460 925 305 610 34 38

10.0 370 740 245 485 42 48

12.0 310 615 205 405 50 56

NEMA Motor

Frame

Recommended Motor

Bases

48, 56

48 / 56, 135,

200

SMB - 143

56, 143T SMB - 143

145 / 60

145 / 145-HD Belt Selection Chart

PD Minimum Center Distance by Selected Sheave Size

Driven “A” Belt Size1

Sheave A26 A31 A33 A35 A38 A42 A46 A48 A51 A53 A55 A60 A62

(27.3) (32.3) (34.3) (36.3) (39.3) (43.3) (47.3) (49.3) (52.3) (54.3) (56.3) (61.3) (63.3)

in in in in in in in in in in in in in in

4.0 7.2 9.7 10.7 11.7 13.2 15.2 17.2 18.2 19.7 20.7 21.7 24.2 25.2

5.0 6.4 8.9 9.9 10.9 12.4 14.4 16.4 17.4 18.9 19.9 20.9 23.4 24.4

6.0 —8.1 9.1 10.1 11.6 13.6 15.6 16.6 18.1 19.1 20.1 22.6 23.6

8.0 — — 7.3 8.3 9.8 11.9 13.9 14.9 16.4 17.4 18.4 20.9 21.9

10.0 ———— 8.0 10.1 12.1 13.1 14.6 15.7 16.7 19.2 20.2

12.0 ——————10.3 11.3 12.8 13.8 14.9 17.4 18.4

Note: n 1 indicates: These are nominal belt sizes. The number in parentheses is the actual pitch length.

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Variable Speed Drives

Aluminoline Models 160 and 160-HD

Item Selection

Aluminoline Series

Two-Side Moveable

Adjustable Center Drives

1/2 through 1 HP

“A” Belt

Ratio 2.7:1

6.002.25

6.31

2.25

1.56

1.63

Model 160 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18572 1/2

2.10 5.75 27 3/4 1/2

18573 5/8

18574 3/4

Model 160-HD Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

42184 1/2

2.10 5.75 36 13/4

42185 5/8

42087 3/4

Note: n When referencing the Lovejoy UPC number in this table, include

685144 as a preﬁx to the numbers shown in the tables.

160 / 160-HD Driven Sheave Selection Table

PD Driven Speed Range Driven Torque

Driven 1750 RPM Motor 1150 RPM Motor 160 160-HD

Sheave Min Max Min Max

in RPM RPM RPM RPM in-lb in-lb

4.0 920 2,515 605 1,650 19 24

5.0 735 2,010 485 1,320 24 30

6.0 615 1,675 405 1,100 28 36

8.0 460 1,255 305 825 38 48

10.0 370 1,005 245 660 47 60

12.0 310 835 205 550 56 75

NEMA Motor

Frame

Recommended Motor

Bases

48, 56

48 / 56, 135,

200

SMB - 143

56, 143T SMB - 143

145 / 60

160 / 160-HD Belt Selection Chart

PD Minimum Center Distance by Selected Sheave Size

Driven “A” Belt Size1

Sheave A26 A31 A33 A35 A38 A42 A46 A48 A51 A53 A55 A60 A62

(27.3) (32.3) (34.3) (36.3) (39.3) (43.3) (47.3) (49.3) (52.3) (54.3) (56.3) (61.3) (63.3)

in in in in in in in in in in in in in in

4.0 5.9 8.4 9.4 10.5 12.0 14.0 16.0 17.0 18.5 19.5 20.5 23.0 24.0

5.0 —7.7 8.7 9.7 11.2 13.2 15.2 16.2 17.7 18.7 19.7 22.2 23.2

6.0 — — 7.9 8.9 10.4 12.4 14.4 15.4 16.9 17.9 18.9 21.4 22.4

8.0 ————8.8 10.8 12.8 13.8 15.3 16.3 17.3 19.8 20.8

10.0 —————9.1 11.1 12.1 13.6 14.6 15.6 18.1 19.1

12.0 ———————10.3 11.8 12.8 13.9 16.4 17.4

Note: n 1 indicates: These are nominal belt sizes. The number in parentheses is the actual pitch length.

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Variable Speed Drives

Aluminoline Models 170, 175 and 180

Item Selection

Aluminoline Series

Two-Side Moveable

Adjustable Center Drives

1/2 through 1-1/2 HP

“A” & “B” Belt

Ratio 2.7:1

6.312.50

7.13

2.63

1.63

1.75

Note: n 1 indicates: These are nominal belt sizes. The number in parentheses is the actual pitch length.

Note: n Using an “A” section belt with the 170 / 175 / 180 series will actually increase the driven speed range.

The maximum driven speed will be slightly higher and the minimum speed will be slightly lower.

Model 170 Spring-Loaded Driver Pulley

Bore PD Belt Torque HP Rating

UPC Min Max Series Capacity 1750 1150

Number in in in in-lb RPM RPM

18617 5/8 2.24 6.06 A

27 3/4 1/2

18618 3/4 2.24 6.06 A

18619 7/8 2.34 5.96 B

Model 175 Spring-Loaded Driver Pulley

Bore PD Belt Torque HP Rating

UPC Min Max Series Capacity 1750 1150

Number in in in in-lb RPM RPM

18645 5/8 2.24 6.06 A

36 13/4

18646 3/4 2.24 6.06 A

18647 7/8 2.34 5.96 B

Model 180 Spring-Loaded Driver Pulley

Bore PD Belt Torque HP Rating

UPC Min Max Series Capacity 1750 1150

Number in in in in-lb RPM RPM

18675 5/8 2.24 6.06 A

54 1-1/2 1

18676 3/4 2.24 6.06 A

18677 7/8 2.34 5.96 B

NEMA Motor

Frame

Recommended Motor

Bases

48, 56 48 / 56, 135,

200

143T SMB - 143

145 / 60

145T SMB - 184

301

170 / 175 / 180 Driven Sheave Selection Table

PD Driven Speed Range Driven Torque

Driven 1750 RPM Motor 1150 RPM Motor 170 175 180

Sheave Min Max Min Max

in RPM RPM RPM RPM in-lb in-lb in-lb

4.0 1,025 2,605 675 1710 19 24 35

5.0 820 2,085 535 1370 24 30 45

6.0 685 1,735 450 1140 28 36 54

8.0 515 1,300 340 855 38 48 72

10.0 410 1,040 270 685 48 60 90

12.0 345 865 225 570 56 75 112

170 / 175 / 180 Belt Selection

PD Minimum Center Distance by Selected Sheave Size

Driven “B” Belt Size1

Sheave B31 B33 B35 B38 B42 B46 B48 B51 B53 B55 B60 B62

(32.8) (34.8) (36.8) (39.8) (43.8) (47.8) (49.8) (52.8) (54.8) (56.8) (61.8) (63.8)

in in in in in in in in in in in in in

4.0 8.5 9.5 10.5 12.0 14.0 16.0 17.0 18.5 19.5 20.5 23.0 24.0

5.0 —8.8 9.8 11.3 13.3 15.3 16.3 17.8 18.8 19.8 22.3 23.3

6.0 — — 9.0 10.5 12.5 14.5 15.5 17.0 18.0 19.0 21.5 22.5

8.0 ———8.9 10.9 12.9 13.9 15.4 16.4 17.4 19.9 20.9

10.0 ————9.2 11.2 12.2 13.7 14.7 15.7 18.2 19.2

12.0 ——————10.4 11.9 13.0 14.0 16.5 17.5

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Variable Speed Drives

WB Series

Overview

Wide Variable Speed Belts

1/3 through 15 HP

Pulleys in the WB series use wide variable speed belts for the most efﬁcient

transmission of torque through the widest possible speed range. These pulleys

are two-side moveable for the best possible belt alignment when used with a

grooved companion sheave. However, the location of the belt centerline close

to the bore end of the pulley reduces the overhung load on motor bearings and

seals. Precision-calibrated springs maintain correct pressure, keeping the belt

properly tensioned and minimizing belt slip.

WB pulleys can be used on both adjustable and ﬁxed center drives. They offer

maximum service when lubricated through a convenient grease ﬁtting and

occasionally run through the speed range.

Features

Sizes range from 6 to 13 inches in diameter ■

Ratings to 15 HP ■

Made of durable cast iron ﬂanges (if greater than 1 HP) ■

Lightweight, corrosion-resistant anodized aluminum ﬂanges on Models 245 ■

and 260

Precision balanced for smooth operation ■

Belt Selection

WB pulleys offer optimum speed ratios because they are used with wide

variable speed belts. Pulley ﬂanges are designed to match standard belt angle

and width, so each pulley model must be matched to the correct belt to insure

full speed range and maximum torque capacity.

Adjustable Center Drives

The typical adjustable center drive consists of: the WB pulley mounted on the

motor shaft; a grooved companion sheave mounted with a bushing on the

driven shaft; an adjustable motor base; and a variable speed belt. A wide range

of pulley sizes and horsepower ratings are available from the WB series to ﬁt

the system requirements, and Lovejoy offers the correct drive belt, companion

sheave, bushing, and motor base to complete the package.

Fixed Center Drives

Fixed center, or compound, drives offer greater driven speed ranges in a

compact space. A ﬁxed center drive consisting of a WB spring-loaded pulley and

an adjustable pulley to match offers the best possible package for “C” mount

conﬁgurations where zero offset is critical. Zero offset means that the driver

and driven units are in line with one another, and the driven pulley is mounted

in such a way that the belt rides as close as possible to the driven unit. This

reduces overhung load and provides a smoother running drive. Three WB ﬁxed

center drive packages are available, from 1/3 through 3 HP.

WB Series Pulley

Typical Adjustable Center Drive

Typical Fixed Center Drive

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Variable Speed Drives

WB Models 245, 260 and 260-HD

Item Selection

WB Series

Two-Side Moveable

Adjustable Center Distance

1/3 through 1 HP

1422V Belts

Ratio 3 to 1

Model 245 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18698 1/2

1.90 5.80 18 1/2 1/3

18700 5/8

18702 3/4

Model 260 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18721 1/2

1.90 5.80 27 3/4 1/2

18724 5/8

18726 3/4

Model 260HD Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

42116 1/2

1.90 5.80 36 13/4

18756 5/8

18757 3/4

245 / 260 / 260HD Belt Selection Table

Belt Center Distance by Selected Sheave Size

Size 1422G- 1422G- 1422G- 1422G- 1422G- 1422G- 1422G-

UPC 5.5SH 6SH 7SH 8SH 9SH 10SH 11SH

Number in in in in in in in

23255 1422V300 6.3 — — — — — —

23257 1422V340 8.3 7.9 7.1 — — — —

23258 1422V360 9.3 8.9 8.1 7.3 — — —

23259 1422V400 11.3 10.9 10.1 9.3 8.4 — —

23260 1422V420 12.3 11.9 11.1 10.3 9.4 8.6 —

23261 1422V460 14.3 13.9 13.1 12.3 11.4 10.6 9.7

23262 1422V480 15.3 14.9 14.1 13.3 12.4 11.6 10.7

23263 1422V540 18.3 17.9 17.1 16.3 15.4 14.6 13.7

23264 1422V600 21.3 20.9 20.1 19.3 18.5 17.6 16.7

23265 1422V660 24.3 23.9 23.1 22.3 21.5 20.6 19.8

23266 1422V720 27.3 26.9 26.1 25.3 24.5 23.6 22.8

23267 1422V780 30.3 29.9 29.1 28.3 27.5 26.6 25.8

NEMA Motor

Frame

Recommended Motor

Bases

143T, 145T

185T, 184T

403 or

SMB - 184

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

number shown in the tables above.

245 / 260 / 260HD Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD OD 1750 RPM Motor 1150 RPM Motor 245 260 260-HD

UPC Min Max Min Max

Number in in RPM RPM RPM RPM in-lb in-lb in-lb

19493 1422G5.5SH 5.3 5.5 630 1,915 415 1,255 16 25 33

19495 1422G6SH 5.8 6.0 575 1,750 380 1,150 18 27 36

19497 1422G7SH 6.8 7.0 490 1,490 325 980 21 32 42

19499 1422G8SH 7.8 8.0 430 1,300 280 855 24 36 48

19501 1422G9SH 8.8 9.0 380 1,150 250 755 27 41 55

19503 1422G10SH 9.8 10.0 340 1,035 225 680 30 46 61

19507 1422G11SH 10.8 11.0 310 935 205 615 34 50 67

19509 1422G12SH 11.8 12.0 285 860 185 565 37 55 73

19511 1422G14SH 13.8 14.0 245 735 160 480 43 64 86

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Variable Speed Drives

WB Models 301E and 301E-HD

Item Selection

WB Series

Two-Side Moveable

Adjustable Center Distance

3/4 through 2 HP

1922V Belts

Ratio 3 to 1

Model 301E Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18761 5/8

2.42 7.28 54 1 to 1-1/2 3/4 to 1

18763 3/4

18764 7/8

18767 1

Model 301E-HD Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

42367 5/8

2.42 7.28 72 21-1/2

42368 3/4

42369 7/8

42370 1

301E / 301E-HD Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD OD 1750 RPM Motor 1150 RPM Motor 301E 301E-HD

UPC Min Max Min Max

Number in in RPM RPM RPM RPM in-lb in-lb

19520 1922G7SK 6.78 7.0 625 1,875 410 1,230 50 67

19522 1922G8SK 7.78 8.0 545 1,635 360 1,075 58 77

19523 1922G9SK 8.78 9.0 485 1,450 320 950 65 87

19524 1922G10SK 9.78 10.0 435 1,300 285 855 73 97

19528 1922G12SK 11.78 12.0 360 1,080 240 710 87 117

19529 1922G14SK 13.78 14.0 310 920 205 605 102 136

19531 1922G16SK 15.78 16.0 270 805 180 530 117 156

301E / 301E-HD Belt Selection Table

Belt Center Distance by Selected Sheave Size

Size 1922G- 1922G- 1922G- 1922G- 1922G- 1922G- 1922G-

UPC 7SK 8SK 9SK 10SK 12SK 14SK 16SK

Number in in in in in in in

23282 1922Vt403 9.1 8.3 —————

23285 1922V443 11.1 10.3 9.5 ————

23287 1922V484 13.2 12.4 11.6 10.7 ———

23288 1922V526 15.3 14.5 13.7 12.8 11.1 — —

23290 1922V544 16.2 15.4 14.6 13.7 12.0 — —

23292 1922V604 19.2 18.4 17.6 16.7 15.1 13.3 —

23293 1922V646 21.3 20.5 19.7 18.9 17.2 15.4 13.6

23294 1922V666 22.3 21.5 20.7 19.9 18.2 16.4 14.6

23295 1922V686 23.3 22.5 21.7 20.9 19.2 17.5 15.7

23296 1922V706 24.3 23.5 22.7 21.9 20.2 18.5 16.7

23298 1922V726 25.3 24.5 23.7 22.9 21.2 19.5 17.7

23300 1922V806 29.3 28.5 27.7 26.9 25.2 23.5 21.7

23303 1922V966 37.3 36.5 35.7 34.9 33.2 31.5 29.8

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

number shown in the tables above.

NEMA Motor

Frame

Recommended

Motor Bases

48, 56

48 / 56, 200,

135

SMB - 143

56, 143T SMB - 143

145 / 60

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Variable Speed Drives

WB Models 3030E and 303E-HD

Item Selection

WB Series

Two-Side Moveable

Adjustable Center Distance

2 through 4 HP

2322V Belts

Ratio 3 to 1

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

number shown in the tables above.

Model 3030E Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18937 7/8

2.70 8.25 108 3 2

18939 1

18940 1-1/8

27966 1-1/4

Model 3030E-HD Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in-lb RPM RPM

42377 7/8

2.70 8.25 144 4 3

18978 1

72379 1-1/8

3030E / 3030E-HD Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD OD 1750 RPM Motor 1150 RPM Motor 3030E 3030E-HD

UPC Min Max Min Max

Number in in RPM RPM RPM RPM in-lb in-lb

19538 2322G7SK 6.75 700 2,135 460 1,405 88 118

19540 2322G8SK 7.75 8.0 610 1,860 405 1,220 101 135

15944 2322G9SK 8.75 9.0 540 1,650 355 1,080 115 152

19546 2322G10SK 9.75 10.0 485 1,480 320 970 128 170

19548 2322G12SK 11.75 12.0 405 1,225 265 805 157 205

19550 2322G14SK 13.75 14.0 345 1,050 230 690 180 240

19553 2322G16SK 15.75 16.0 300 915 200 600 206 275

3030E / 3030E-HD Belt Selection Table

Belt Center Distance by Selected Sheave Size

Size 2322G- 2322G- 2322G- 2322G- 2322G- 2322G- 2322G-

UPC 7SK 8SK 9SK 10SK 12SK 14SK 16SK

Number in in in in in in in

23318 2322V481 12.2 11.5 10.7 9.9 ———

23319 2322V521 14.2 13.5 12.7 11.9 ———

23320 2322V541 15.2 14.5 13.7 12.9 11.2 — —

23322 2322V601 18.2 17.5 16.7 15.9 14.2 12.5 —

23324 2322V621 19.3 18.5 17.7 16.9 15.2 13.5 —

23326 2322V661 21.3 20.5 19.7 18.9 17.2 15.5 13.8

23327 2322V681 22.3 21.5 20.7 19.9 18.3 16.5 14.8

23328 2322V701 23.3 22.5 21.7 20.9 19.3 17.6 15.8

23329 2322V721 24.3 23.5 22.7 21.9 20.3 18.6 16.8

23330 2322V801 28.3 27.5 26.7 25.9 24.3 22.6 20.8

23331 2322V826 29.5 28.7 28.0 27.1 25.5 23.8 22.1

23333 2322V886 32.5 31.7 31.0 30.2 28.5 26.8 25.1

23335 2322V1001 38.3 37.5 36.7 35.9 34.3 32.6 30.9

23337 2322V1271 51.8 51.0 50.2 49.4 47.8 46.2 44.5

NEMA Motor

Frame

Recommended

Motor Bases

143T, 145T S M B - 1 8 4 o r

302-3

182T, 184T

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Variable Speed Drives

WB Models 3030E and 303E-HD

Item Selection

WB Series

Two-Side Moveable

Adjustable Center Distance

2 through 4 HP

2926V Belts

Ratio 3.4 to 1

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

number shown in the tables above.

Model 303E Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18814 7/8

2.80 9.70 108 3 2

18817 1

18819 1-1/8

18820 1-1/4

Model 303E-HD Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18856 1-1/8 2.80 9.70 144 4 3

43435 1-1/4

303E / 303E-HD Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD OD 1750 RPM Motor 1150 RPM Motor 303E 303E-HD

UPC Min Max Min Max

Number in in RPM RPM RPM RPM in-lb in-lb

19561 2926G7SK 7.7 8.0 640 2,200 420 1,445 86 114

19563 2926G8SK 8.7 9.0 565 1,950 370 1,280 97 129

19565 2926G9SK 9.7 10.0 505 1,750 335 1,150 108 144

19567 2926G10SK 11.7 12.0 420 1,450 280 950 130 174

19569 2926G12SK 13.7 14.0 360 1,235 235 810 153 203

19572 2926G14SK 15.7 16.0 315 1,080 205 710 175 233

19575 2926G16SK 17.7 18.0 280 955 185 630 197 263

303E / 303E-HD Belt Selection Table

Belt Center Distance by Selected Sheave Size

Size 2926G- 2926G- 2926G- 2926G- 2926G- 2926G- 2926G-

UPC 7SK 8SK 9SK 10SK 12SK 14SK 16SK

Number in in in in in in in

23350 2926V486 10.6 9.8 —————

23353 2926V546 13.6 12.8 12.1 ————

23357 2926V606 16.6 15.8 15.1 13.5 ———

23360 2926V646 18.6 17.8 17.1 15.5 13.8 — —

23361 2926V666 19.6 18.8 18.1 16.5 14.8 13.1 —

23362 2926V686 20.6 19.8 19.1 17.5 15.8 14.1 —

23364 2926V726 22.6 21.8 21.1 19.5 17.8 16.1 14.3

23367 2926V786 25.6 24.8 24.1 22.5 20.8 19.1 17.4

23369 2926V856 29.1 28.3 27.6 26.0 24.3 22.6 20.9

23371 2926V906 31.6 30.8 30.1 28.5 26.8 25.2 23.4

23372 2926V966 34.6 33.8 33.1 31.5 29.8 28.2 26.4

23375 2926V1086 40.6 39.8 39.1 37.5 35.8 34.2 32.5

23376 2926V1146 43.6 42.8 42.1 40.5 38.9 37.2 35.5

NEMA Motor

Frame

Recommended

Motor Bases

143T, 145T 302-3 or

185T, 184T SMB - 184

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Variable Speed Drives

WB Models 401E, 402E and 403E

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

number shown in the tables above.

WB Series

Two-Side Moveable

Adjustable Center Distance

3/4 through 3 HP

2926V Belts

Ratio 3.8 to 1

Model 401E Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18858 7/8

2.80 10.70 54 1 to 1-1/2 3/4 to 1

27802 1

18859 1-1/8

Model 402E Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18884 7/8

2.80 10.70 72 21-1/2

27803 1

18885 1-1/8

Model 403E Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

18894 7/8

2.80 10.70 108 3 2

18896 1

18897 1-1/8

18898 1-1/4

401E / 402E / 403E Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD OD 1750 RPM Motor 1150 RPM Motor 401E 402E 403E

UPC Min Max Min Max

Number in in RPM RPM RPM RPM in-lb in-lb in-lb

19561 2926G8SK 7.7 8.0 340 2,430 420 1,595 39 52 78

19563 2926G9SK 8.7 9.0 565 2,150 370 1,410 44 59 88

19565 2926G10SK 9.7 10.0 505 1,930 335 1,265 49 65 98

19567 2926G12SK 11.7 12.0 420 1,600 280 1,050 59 79 118

19569 2926G14SK 13.7 14.0 360 1,365 235 895 69 92 138

19572 2926G16SK 15.7 16.0 315 1,190 205 780 79 106 158

19575 2926G18SK 17.7 18.0 280 1,055 185 695 89 119 179

NEMA Motor

Frame

Recommended

Motor Bases

143T, 145T 403 or

185T, 184T SMB - 184

401E / 402E / 403E Belt Selection Table

Belt Center Distance by Selected Sheave Size

Size 2926G- 2926G- 2926G- 2926G- 2926G- 2926G- 2926G-

UPC 8SK 9SK 10SK 12SK 14SK 16SK 18SK

Number in in in in in in in

23350 2926V486 10.0 ——————

23353 2926V546 13.0 12.3 11.5 ————

23357 2926V606 16.0 15.3 14.5 12.9 ———

53360 2926V646 18.0 17.3 16.5 14.9 13.3 — —

23661 2926V666 19.0 18.3 17.5 15.9 14.3 — —

23362 2926V686 20.0 19.3 18.5 16.9 15.3 13.6 —

23364 2926V726 22.0 21.3 20.5 18.9 17.3 15.6 —

23367 2926V786 25.0 24.3 23.5 21.9 20.3 18.6 16.9

23369 2926V856 28.1 27.8 27.0 25.4 23.8 22.1 20.4

23371 2926V906 31.0 30.3 29.5 27.9 26.3 24.6 22.9

23372 2926V966 34.0 33.3 32.5 30.9 29.3 27.7 26.0

23375 2926V1086 40.0 39.3 38.5 36.9 35.3 33.7 32.0

23376 2926V1146 43.0 42.3 41.5 39.9 38.3 36.7 35.0

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Variable Speed Drives

WB Models 3050E and 3050E-HD

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

number shown in the tables above.

WB Series

Two-Side Moveable

Adjustable Center Distance

3 through 7-1/2 HP

2926V Belts

Ratio 3 to 1

Model 3050E Spring-Loaded Driver Pulley

UPC Bore PD Torque HP Rating

Number Min Max Capacity 1750 1150

in in in in-lb RPM RPM

18988 1-1/8

3.20 9.70 180 5 3

18989 1-1/4

18990 1-3/4

Model 3050E-HD Spring-Loaded Driver Pulley

UPC Bore PD Torque HP Rating

Number Min Max Capacity 1750 1150

in in in in-lb RPM RPM

43184 1-1/8

3.20 9.70 270 7-1/2 5

19031 1-3/8

3050E / 3050E-HD Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD OD 1750 RPM Motor 1150 RPM Motor 3050E 3050E-HD

UPC Min Max Min Max

Number in in RPM RPM RPM RPM in-lb in-lb

19561 2926G8SK 7.7 8.0 730 2,200 480 1,445 143 214

19563 2926G9SK 8.7 9.0 645 1,950 425 1,280 161 242

19565 2926G10SK 9.7 10.0 580 1,750 380 1,150 180 270

19567 2926G12SK 11.7 12.0 480 1,450 315 950 217 326

19569 2926G14SK 13.7 14.0 410 1,235 270 810 254 381

19572 2926G16SK 15.7 16.0 360 1,080 235 710 291 437

19575 2926G18SK 17.7 18.0 320 955 210 630 328 493

3050E / 3050E-HD Belt Selection Table

Belt Center Distance by Selected Sheave Size

Size 2926G- 2926G- 2926G- 2926G- 2926G- 2926G- 2926G-

UPC 8SK 9SK 10SK 12SK 14SK 16SK 18SK

Number in in in in in in in

23350 2926V486 10.6 9.8 —————

23353 2926V546 13.6 12.8 12.1 ————

23357 2926V606 16.6 15.8 15.1 13.5 ———

53360 2926V646 18.6 17.8 17.1 15.5 13.8 — —

23661 2926V666 19.6 18.8 18.1 16.5 14.8 13.1 —

23362 2926V686 20.6 19.8 19.1 17.5 15.8 14.1 —

23364 2926V726 22.6 21.8 21.1 19.5 17.8 16.1 14.3

23367 2926V786 25.6 24.8 24.1 22.5 20.8 19.1 17.4

23369 2926V856 29.1 28.3 27.6 26.0 24.3 22.6 20.9

23371 2926V906 31.6 30.8 30.1 28.5 26.8 25.2 23.4

23372 2926V966 34.6 33.8 33.1 31.5 29.8 28.2 26.4

23375 2926V1086 40.6 39.8 39.1 37.5 35.8 34.2 32.5

23376 2926V1146 43.6 42.8 42.1 40.5 38.9 37.2 35.5

NEMA Motor

Frame

Recommended

Motor Bases

184T, 213T 305-8 or

215T, 254T SMB - 254

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Variable Speed Drives

WB Models 3075B, 3100B and 3150B

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

number shown in the tables above.

WB Series

Two-Side Moveable

Adjustable Center Distance

5 through 15 HP

4430V Belts

Ratio 3 to 1

Model 3075B Spring-Loaded Driver Pulley

UPC Bore PD Torque HP Rating

Number Min Max Capacity 1750 1150

in in in in-lb RPM RPM

53008 1-1/8

4.25 12.60 270 7-1/2 5

53009 1-1/4

53010 1-3/8

53011 1-5/8

Model 3100B Spring-Loaded Driver Pulley

UPC Bore PD Torque HP Rating

Number Min Max Capacity 1750 1150

in in in in-lb RPM RPM

53012 1-1/4

4.25 12.60 360 10 7-1/2

53013 1-3/8

53003 1-5/8

Model 3150B Spring-Loaded Driver Pulley

UPC Bore PD Torque HP Rating

Number Min Max Capacity 1750 1150

in in in in-lb RPM RPM

53015 1-1/4

4.25 12.60 540 15 10

53016 1-3/8

53017 1-5/8

3075B / 3100B / 3150B Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD OD 1750 RPM Motor 1150 RPM Motor 3075B 3100B 3150B

UPC Min Max Min Max

Number in in RPM RPM RPM RPM in-lb in-lb in-lb

19600 4430G10.4SF 10.0 10.4 745 2,205 490 1,145 215 285 730

19604 4430G12SK 11.6 12.0 645 1,900 425 1,245 249 330 498

19607 4430G14SK 13.6 14.0 550 1,620 360 1,065 292 388 584

19610 4430G16SK 15.6 16.0 480 1,410 315 925 335 445 670

19614 4430G18.4SF 18.0 18.4 415 1,225 275 800 387 516 774

19616 4430G20.4SF 20.0 20.4 375 1,100 245 720 430 570 860

19618 4430G24.4SF 24.0 24.4 310 915 205 600 516 684 1032

3075B / 3100B / 3150B Belt Selection Table

Belt Center Distance by Selected Sheave Size

Size 4430G- 4430G- 4430G- 4430G- 4430G- 4430G- 4430G-

UPC 10.4SF 12SK 14SK 16SK 18.4SF 20.4SF 24.4SF

Number in in in in in in in

23397 4430V555 ———————

23400 4430V600 12.7 ——————

23403 4430V660 15.2 14.0 —————

23407 4430V718 18.1 16.9 15.3 ————

23411 4430V760 20.2 19.0 17.4 15.8 ———

23413 4430V790 21.7 20.5 18.9 17.3 15.3 — —

23414 4430V850 24.7 23.5 21.9 20.3 18.3 — —

23416 4430V910 27.7 26.5 24.9 23.3 21.3 19.6 —

23418 4430V970 30.7 29.5 27.9 26.3 24.3 22.6 19.1

23421 4430V1030 33.7 32.5 30.9 29.3 27.3 25.6 22.1

23423 4430V1090 36.7 35.5 33.9 32.3 30.3 28.6 25.2

23426 4430V1150 39.7 38.5 36.9 35.3 33.3 31.7 28.2

23430 4430V1320 48.2 47.0 45.4 43.8 41.9 40.2 36.8

23434 4430V1610 62.7 61.5 59.9 58.3 56.4 54.7 51.4

NEMA Motor

Frame

Recommended

Motor Bases

184T, 213T SMB - 254 or

215T, 254T 305-8

215T, 254T,

256T, 284T, 310-30

286T, 324T

HP AT DRIVEN SHAFT

% OF MAXIMUM DRIVEN SPEED

30 40 50 60 70 80 90 100

Horsepower Curves

1,750 RPM Input

3150

3100

3075

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Variable Speed Drives

WB Models M-007, 245 and 260

Item Selection

Notes: n The Driven Speed Range and the resulting Ratios given in this chart are derived from mathematical calculations based on exact center distances,

constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

WB Series

Fixed Center Distance

1/3 through 3/4 HP

1422V Belts

Ratio 9.3 to 1

Model M-007 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

31670 1/2

1.90 5.80 1/2 to 3/4 1/3 to 1/2

31671 5/8

31672 3/4

Model 245 Spring-Loaded Driven Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

18698 1/2

1.90 5.80 1/2 1/3

18700 5/8

18702 3/4

Model 260 Spring-Loaded Driven Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

18721 1/2

1.90 5.80 3/4 1/2

18724 5/8

18726 3/4

M-007 / 245 / 260 Belt Selection Chart

Center Distance & Belt Size

Driven Speed Range

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver 1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM RPM Number in RPM RPM RPM RPM

23255 1422V300 8.70

573 5,342 9.3 to 1 377 3,510 9.3 to 1

23262 1422V480 17.79

573 5,342 9.3 to 1 377 3,510 9.3 to 123257 1422V340 10.73 23263 1422V540 20.81

23258 1422V360 11.74 23264 1422V600 23.83

23259 1422V400 13.76

573 5,342 9.3 to 1 377 3,510 9.3 to 1

23265 1422V660 26.84

573 5,342 9.3 to 1 377 3,510 9.3 to 123260 1422V420 14.77 23266 1422V720 29.85

23261 1422V460 16.79 23267 1422V780 32.85

Note: n Because both the M-007 and the 245/260 are 2-side moveable

pulleys, the above UPC numbers apply for both “C” Mount and “Z”

Mount drives.

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Variable Speed Drives

WB Models M-1, 301C, and 301D

Item Selection

Notes: n The Driven Speed Range and the resulting Ratios given in this chart are derived from mathematical calculations based on exact center distances,

constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

WB Series

Fixed Center Distance

3/4 through 1-1/2 HP

1922V Belts

Ratio 9.0 to 1

Model M-1 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

20137 5/8

2.42 7.28 1 to 1-1/2 3/4 to 1

20138 3/4

20139 7/8

20141 1

Note: n 17 turns of hand wheel required for full speed range.

Model 301C Spring-Loaded Driven Pulley (“C” Mount)

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

20371 5/8

2.42 7.28 1 to 1-1/2 3/4 to 1

20372 3/4

20373 7/8

20374 1

Model 301D Spring-Loaded Driven Pulley (“Z” Mount)

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

42218 5/8

2.42 7.28 1 to 1-1/2 3/4 to 1

20376 3/4

42219 7/8

20378 1

M-1 / 301C / 301D Belt Selection Table

Center Distance & Belt Size

Driven Speed Range

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver 1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM RPM Number in RPM RPM RPM RPM

23278 1922V321 8.06

582 5,264 9 to 1 383 3,459 9 to 1

23288 1922V526 18.46

582 5,264 9 to 1 383 3,459 9 to 1

23280 1922V363 10.21 23290 1922V544 19.36

23281 1922V380 11.07 23292 1922V614 22.39

23282 1922V403 12.24 23293 1922V646 24.50

23283 1922V426 13.40

582 5,264 9 to 1 383 3,459 9 to 1

23294 1922V666 25.50

582 5,264 9 to 1 383 3,459 9 to 1

23285 1922V443 14.26 23295 1922V686 26.51

23286 1922V454 14.82 23296 1922V706 27.51

23287 1922V484 16.34 23298 1922V726 28.52

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Variable Speed Drives

WB Models M-3, 3030C, and 3030D

Item Selection

Notes: n The Driven Speed Range and the resulting Ratios given in this chart are derived from mathematical calculations based on exact center distances,

constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

WB Series

Fixed Center Distance

1-1/2 through 3 HP

2322V Belts

Ratio up to 9.3 to 1

Model M-3 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

20200 7/8

2.70 8.25 2 to 3 1-1/2 to 2

20201 1

20202 1-1/8

Note: n 22 turns of hand wheel required for full speed range.

Model 3030C Spring-Loaded Driven Pulley (“C” Mount)

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

20381 7/8

2.70 8.25 2 to 3 1-1/2 to 2

20382 1

20383 1-1/8

Model 3030D Spring-Loaded Driven Pulley (“Z” Mount)

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

20387 7/8

2.70 8.25 2 to 3 1-1/2 to 2

42902 1

42903 1-1/8

M-3 / 3030C / 3030D Belt Selection Table

Center Distance & Belt Size

Driven Speed Range

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver 1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM RPM Number in RPM RPM RPM RPM

23315 2322V421 12.08

573 4,720 8.2

to 1 377 3,513 9.3

to 1

23327 2322V681 25.22

573 4,720 8.2 to 1 377 3,513 9.3 to 1

23317 2322V441 13.10 23328 2322V701 26.23

23318 2322V481 15.13 23329 2322V721 27.24

23319 2322V521 17.15 23330 2322V801 31.26

23320 2322V541 18.16

573 4,720 8.2

to 1 377 3,513 9.3

to 1

23331 2322V826 32.51

573 4,720 8.2 to 1 377 3,513 9.3 to 1

23322 2322V601 21.19 23333 2322V886 35.53

23324 2322V621 22.20 23335 2322V1001 41.30

23326 2322V661 24.21 23337 2322V1271 54.83

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Variable Speed Drives

Hi-Ratio Series

Overview

Fixed Center Drives

1/3 through 3 HP

Wide Variable Speed Belts

In general, ﬁxed center drives provide a greater total speed ratio than

adjustable center drives. Traditional designs offer two pulleys of the same

diameter, which means that a large portion of the driven speed range will be

above motor speed. For those applications that require wide speed range

and low driven speed, this has been a problem.

Lovejoy’s new Hi-Ratio system solves this problem by mating smaller driver

and larger driven pulleys to provide the unique combination of broader

driven speed ranges and lower minimum driven speeds.

Features

Precision-balanced cast iron ﬂanges for durability ■

No maintenance required, thanks to a unique self-lubricating bearing ■

material used between sliding surfaces

Driven pulley springs are calibrated to maintain correct ﬂange pressure ■

against the belt

Minimum offset with the most common “C” mount conﬁguration ■

Compact drive package because the driver and driven units are nearly in ■

line with one another

Three drive packages available, ranging from 1/3 through 5 HP with a ■

1,750 RPM motor. Speed ratios up to 11.5:1 can be attained

A motorized control feature is available for all three drive packages, making

it possible to convert from the standard handwheel to convenient remote

control. This option consists of a servo motor that opens and closes the

driver pulley ﬂanges from a separate control station, allowing accurate speed

adjustment in locations that may be inconvenient, remote or hazardous.

Conversion is easy, requiring only the removal of the handwheel and torque

rod from the standard manual pulley, installing the motorized torque arm in

place of the handwheel, and connecting the CN2601 control switch to the

servo motor and power source.

Every ﬁxed center drive requires a torque arm bracket to prevent rotation of

the handwheel so that it can be adjusted while the motor is running. Lovejoy

offers a universally adaptable bracket, the Model 501.

Hi Ratio Series Pulley & Belt

MANUALLY

ADJUSTABLE

PULLEY

MOTORIZED TORQUE ARM

REMOVE HANDWHEEL

AND TORQUE ROD

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Variable Speed Drives

Hi-Ratio Models M-14 and 1401

Item Selection

Notes: n The belt sizes shown in this chart are based upon initial drive set-up with the adjustable pulley at minimum pitch diameter (open) and the

spring-loaded pulley at maximum pitch diameter (closed). The driven speed range and the resulting ratios shown in this chart are derived from

mathematical calculations based upon exact center distances, constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ

due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hi-Ratio Series

Fixed Center Distance

1/3 through 1 HP

1422V Belts

Ratio up to 8.4 to 1

Model M-14 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

43314 5/8

1.67 5.80 1/2 to 1 1/3 to 3/4

43315 3/4

43316 7/8

Note: n 17 turns of hand wheel required for full speed range.

Model 1401 Spring-Loaded Driven Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

43317 5/8

2.67 6.80 1/2 to 1 1/3 to 3/4

43318 3/4

43319 7/8

43320 1

M-14 / 1401 Belt Selection Table

Center Distance & Belt Size

Driven Speed Range

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver 1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM RPM Number in RPM RPM RPM RPM

23255 1422V300 7.91 430 3,307 7.7 to 1 283 2,172 7.7 to 1 23262 1422V480 17.07 430 3,484 8.1 to 1 283 2,292 8.1 to 1

23257 1422V340 9.96 430 3,362 7.8 to 1 283 2,208 7.8 to 1 23263 1422V540 20.10 430 3,517 8.2 to 1 283 2,315 8.2 to 1

23258 1422V360 10.98 430 3,384 7.9 to 1 283 2,223 7.9 to 1 23264 1422V600 23.13 430 3,555 8.2 to 1 283 2,340 8.2 to 1

23259 1422V400 13.02 430 3,430 8.0 to 1 283 2,253 8.0 to 1 23265 1422V660 26.15 430 3,577 8.3 to 1 283 2,348 8.3 to 1

23260 1422V420 14.03 430 3,438 8.0 to 1 283 2,261 8.0 to 1 23266 1422V720 29.16 430 3,585 8.3 to 1 283 2,356 8.3 to 1

23261 1422V460 16.06 430 3,474 8.1 to 1 283 2,284 8.1 to 1 23267 1422V780 32.18 430 3,611 8.4 to 1 283 2,373 8.4 to 1

Notes: n The above UPC numbers are for “C” Mount drives only.

n Consult the factory for “Z” mount or thru bore applications.

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Variable Speed Drives

Hi-Ratio Models M-19, 1902 and 1903

Item Selection

Notes: n The belt sizes shown in this chart are based upon initial drive set-up with the adjustable pulley at minimum pitch diameter (open) and the

spring-loaded pulley at maximum pitch diameter (closed). The driven speed range and the resulting ratios shown in this chart are derived from

mathematical calculations based upon exact center distances, constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ

due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hi-Ratio Series

Fixed Center Distance

3/4 through 3 HP

1922V Belts

Ratio up to 10.6 to 1

Model M-19 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

43300 5/8

1.85 7.28 1 to 3 3/4 to 2

43301 3/4

43302 7/8

43303 1

Note: n 17 turns of hand wheel required for full speed range.

Model 1902 Spring-Loaded Driven Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

43304 5/8

2.97 8.03 1 to 2 3/4 to 1-1/2

43305 3/4

43306 7/8

43307 1

43308 1-1/8

Model 1903 Spring-Loaded Driven Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

43309 5/8

2.97 8.03 3 2

43321 3/4

43311 7/8

43312 1

43313 1-1/8

Notes: n The above UPC numbers are for “C” Mount drives only.

n Consult the factory for “Z” mount or thru bore applications.

M-14 / 1401 Belt Selection Table

Center Distance & Belt Size

Driven Speed Range

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver 1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM RPM Number in RPM RPM RPM RPM

23278 1922V321 8.07 403 4,275 10.6 to 1 265 2,810 10.6 to 1 23288 1922V526 18.18 403 4,218 10.4 to 1 265 2,772 10.4 to 1

23280 1922V363 9.86 403 4,275 10.6 to 1 265 2,810 10.6 to 1 23290 1922V544 19.09 403 4,212 10.4 to 1 265 2,768 10.4 to 1

23281 1922V380 10.74 403 4,265 10.6 to 1 265 2,803 10.6 to 1 23292 1922V604 22.12 403 4,201 10.4 to 1 265 2,760 10.4 to 1

23282 1922V403 11.92 403 4,254 10.5 to 1 265 2,795 10.5 to 1 23293 1922V646 24.24 403 4,195 10.4 to 1 265 2,756 10.4 to 1

23283 1922V426 13.09 403 4,248 10.5 to 1 265 2,791 10.5 to 1 23294 1922V666 25.25 403 4,195 10.4 to 1 265 2,756 10.4 to 1

23285 1922V443 13.96 403 4,242 10.5 to 1 265 2,787 10.5 to 1 23295 1922V686 26.26 403 4,189 10.4 to 1 265 2,753 10.4 to 1

23286 1922V454 14.52 403 4,236 10.5 to 1 265 2,784 10.5 to 1 23296 1922V706 27.27 403 4,183 10.3 to 1 265 2,749 10.3 to 1

23287 1922V484 16.05 403 4,224 10.5 to 1 265 2,776 10.5 to 1 23298 1922V726 28.28 403 4,177 10.3 to 1 265 2,745 10.3 to 1

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Variable Speed Drives

Hi-Ratio Models M-23, 2303 and 2305

Item Selection

Notes: n The belt sizes shown in this chart are based upon initial drive set-up with the adjustable pulley at minimum pitch diameter (open) and the

spring-loaded pulley at maximum pitch diameter (closed). The driven speed range and the resulting ratios shown in this chart are derived from

mathematical calculations based upon exact center distances, constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ

due to variations in any of these factors. Do not exceed 10,500 FPM rim speed with the driven pulley.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hi-Ratio Series

Fixed Center Distance

2 through 5 HP

2322V Belts

Ratio up to 11.5 to 1

Notes: n The above UPC numbers are for “C” Mount drives only.

n Consult the factory for “Z” mount or thru bore applications.

Model M-23 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

43159 7/8

2.13 9.25 3 to 5 2 to 3

43160 1

42483 1-1/8

Note: n 22 turns of hand wheel required for full speed range.

Model 2303 Spring-Loaded Driven Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

43161 7/8

4.06 10.75 3 2

43162 1

43163 1-1/8

Model 2305 Spring-Loaded Driven Pulley

Bore PD Horsepower Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

43164 7/8

4.06 10.75 5 3

43165 1

43166 1-1/8

M-14 / 1401 Belt Selection Table

Center Distance & Belt Size

Driven Speed Range

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver 1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in in in in in Number in in in in in

23315 2322V421 10.50 346 3,645 10.5 to 1 228 2,417 10.6 to 1 23327 2322V681 23.39 346 3,645 10.5 to 1 228 2,613 11.4 to 1

23317 2322V441 11.09 346 3,645 10.5 to 1 228 2,439 10.6 to 1 23328 2322V701 24.40 346 3,645 10.5 to 1 228 2,620 11.5 to 1

23318 2322V481 13.16 346 3,645 10.5 to 1 228 2,479 10.9 to 1 23329 2322V721 25.42 346 3,645 10.5 to 1 228 2,617 11.5 to 1

23319 2322V521 15.22 346 3,645 10.5 to 1 228 2,514 11.0 to 1 23330 2322V801 29.47 346 3,645 10.5 to 1 228 2,605 11.4 to 1

23320 2322V541 16.25 346 3,645 10.5 to 1 228 2,532 11.1 to 1 23331 2322V826 30.73 346 3,645 10.5 to 1 228 2,603 11.4 to 1

23322 2322V601 19.31 346 3,645 10.5 to 1 228 2,563 11.2 to 1 23333 2322V886 33.77 346 3,645 10.5 to 1 228 2,594 11.4 to 1

23324 2322V621 20.33 346 3,645 10.5 to 1 228 2,575 11.3 to 1 23335 2322V1001 39.56 346 3,645 10.5 to 1 228 2,586 11.3 to 1

23326 2322V661 22.37 346 3,645 10.5 to 1 228 2,600 11.4 to 1 23337 2322V1271 53.14 346 3,645 10.5 to 1 228 2,569 11.2 to 1

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Variable Speed Drives

Hexadrive Series

Overview

1/3 through 3 HP

Wide Variable Speed Belts

Hexadrive pulleys are the most durable variable speed pulleys available.

The hexagon-shaped center shaft efﬁciently transmits torque through the six

hex ﬂats for maximum performance and long life. Internal drive keys, which

tend to wear and shorten pulley life, are not required. In addition, because a

resilient elastomer covers the shaft and eliminates metal to metal contact, no

lubrication is necessary. The ﬂanges are made of cast iron to provide a long-

wearing belt contact area, and are precision-balanced for smooth operation.

Features

Two styles available: one-side moveable for V-Flat drives and two-side ■

moveable for V-V drives

Uses variable speed belts ■

Sizes range from 6 inches up to 12-1/2 inches in diameter ■

Maximum rating of 30 HP @ 1,750 RPM ■

Spring-loaded models have an easy removal feature. ■

Hexadrive pulleys are available for adjustable center as well as ﬁxed center

drives. This is the ultimate product for applications in hostile environments.

Some typical applications include: agricultural equipment, food packaging

machines, air handling systems, textile spinning frames, foundry snag

grinders, mixers, and pumps.

Belt Selection

Hexadrive pulleys offer optimum speed ratios because they are used with

wide variable speed belts. The pulley ﬂanges are designed to match standard

belt angle and width, so each pulley model must be matched to the correct

belt to insure full speed range and maximum torque capacity.

Adjustable Center Drives

An adjustable center drive system consists of a spring-loaded Hexadrive

pulley, a ﬁxed diameter companion sheave and bushing, an adjustable motor

base, and a variable speed belt. Two types of drive packages are available—

the V-V and the V-Flat drives. The V-V drive includes a two-side moveable

Hexadrive pulley driving to a grooved companion sheave. The V-Flat

drive utilizes a one-side moveable Hexadrive pulley driving to a ﬂat-faced

companion sheave. For a complete explanation of V-V and V-Flat drives,

refer to page VSD-4, and to order bushings, see page SF-17. Generally, a

V-V drive offers greater torque capacity, while a V-Flat drive is more compact

and economical.

Fixed Center Drives

Fixed center, or compound, drives offer greater driven speed range in a

compact space. There are three mechanically-adjustable Hexadrive pulley

models available which, when combined with a spring-loaded Hexadrive

pulley, provide drive packages ranging from 3/4 up to 30 horsepower. There

is also a “non-Hex” adjustable pulley, the Model M-007, which can be teamed

with a Hexadrive spring-loaded pulley for 1/2 and 3/4 HP motors. This

package is unique because it is a two-side moveable ﬁxed center drive.

Hexadrive Series

Typical V-Flat Drive

Typical V-V Drive

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Variable Speed Drives

Hexadrive Series

Overview

The typical Hexadrive ﬁxed center drive consists of an adjustable pulley

mounted on the motor shaft, a spring-loaded pulley on the driven shaft, a

variable speed belt and a torque arm bracket. This bracket prevents the

manual pulley handwheel from spinning, so speed can be changed while the

motor is running. The spring-loaded driven pulley compensates for belt slack or

tightening when the adjustable pulley is opened or closed. Much of the driven

speed range will be greater than motor speed.

It is important to know the mounting conﬁguration when designing a Hexadrive

ﬁxed center drive or selecting a replacement pulley. There are two basic styles,

designated as “C” and “Z” mountings. The adjustable pulley is the same for

either, but the driven spring-loaded pulley is different. The drive selection tables

that follow in this catalog indicate which model to use in either case.

The standard adjustable pulley is the “HM” series, with a handwheel control.

There are two variations which give the option of speed change by electric

remote control (“HEC” series) or by using an external linear actuator (“HLA”

series).

Easy Removal Feature

All Hexadrive spring-loaded pulleys are designed with an easy removal feature,

which minimizes the chance of damage to the pulley or shaft. This damage can

result from hammering and prying on the pulley.

While this feature is built into the smaller pulleys, all 5 HP and larger pulleys

require the use of our Easy Removal Kit accessory because they feature

“through bores.” The kit consists of a special nut and retaining ring that ﬁt into

the counterbore end of the pulley, retaining ring pliers, and a threaded puller

rod. Two types of kits are available – the table below shows the correct kit for

each pulley model.

C and Z Mounting

Typical Hexadrive Fixed Center Drive

Easy Removal Kit

UPC Number Easy Removal Kit

Model Number

For Pulley

Model Number

685144 20723 030880H

12904, 12905, 12907,

22904, 22905, 22907,

32904, 32905

685144 20726 020979H

13207, 13210, 13220,

13230, 23207, 23210,

23220, 23230, 14407,

14410, 14420, 14430,

24407, 24410, 24420,

24430, 34407, 34410, 34420

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Variable Speed Drives

Hexadrive Models 11407 and 11401

Item Selection

Hexadrive Series

One-Side Moveable

Adjustable Center Distance

1/3 through 1 HP

1422V Belts

Ratio 2.6 to 1

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Note: n When referencing the Lovejoy UPC number in this table,

include 685144 as a preﬁx to the number shown in the

tables above.

Model 11407 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

20728 5/8

2.21 5.80 27 1/2 to 3/4 1/3 to 1/2

20729 3/4

20730 7/8

Model 11401 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

35796 5/8

2.21 5.80 36 13/4

20760 3/4

20761 7/8

11407 / 11401 Driven Sheave Selection Table

Flat Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM Motor 1150 RPM Motor 11407 11401

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb

19656 2.75F4SD 4.42 875 2,295 575 1,505 18 23

19660 2.75F6SD 6.42 605 1,580 395 1,035 26 34

19662 2.75F7SD 7.42 525 1,365 345 900 30 39

19664 2.75F8SD 8.42 460 1,205 305 790 34 45

19666 2.75F9SD 9.42 415 1,075 270 705 40 52

19668 2.75F10SD 10.42 375 970 245 640 45 57

19672 2.75F12SD 12.42 315 815 205 535 56 70

19674 2.75F14SF 14.42 265 700 180 460 62 80

19676 2.75F16SF 16.42 240 615 155 405 72 93

11407 / 11401 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 2.75F4SD 2.75F6SD 2.75F7SD 2.75F8SD 2.75F9SD 2.75F10SD 2.75F12SD 2.75F14SF 2.75F16SF

Number in in in in in in in in in

23255 1422V300 6.9 ————————

23258 1422V360 9.9 8.4 7.6 ——————

23260 1422V420 13.0 11.4 10.6 9.7 8.9 ————

23262 1422V480 16.0 14.4 13.6 12.8 11.9 11.0 ———

23263 1422V540 19.0 17.4 16.6 15.8 14.9 14.1 12.3 10.4 —

23265 1422V660 25.0 23.4 22.6 21.8 20.9 20.1 18.4 16.6 14.7

23266 1422V720 28.0 26.4 25.6 24.8 24.0 23.1 21.4 19.6 17.8

23267 1422V780 31.0 29.4 28.6 27.8 27.0 26.1 24.4 22.6 20.8

NEMA Motor

Frame Recommended Motor Bases

48, 56 48 / 56, 200

43T 145 / 60, SMB 143

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Variable Speed Drives

Hexadrive Models 11901, 11902 and 11903

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hexadrive Series

One-Side Moveable

Adjustable Center Distance

1 through 3 HP

1922V Belts

Ratio 3 to 1

Model 11901 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

20769 5/8

2.70 8.03 54 1-1/2 1

20770 3/4

20771 7/8

20773 1

20774 1-1/8

Model 11902 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

20801 5/8

2.70 8.03 72 21-1/2

20802 3/4

20803 7/8

20805 1

20806 1-1/8

Model 11903 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

20826 5/8

2.70 8.03 108 3 2

20827 3/4

20828 7/8

20830 1

20831 1-1/8

11901 / 11902 / 11903 Driven Sheave Selection Table

Flat Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM

Motor

1150 RPM

Motor 11901 11902 11903

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb in-lb

19660 2.75F6SD 6.54 720 2,145 475 1,410 34 46 68

19662 2.75F7SD 7.54 630 1,860 415 1,225 40 53 80

19664 2.75F8SD 8.54 555 1,645 360 1,080 45 61 90

19666 2.75F9SD 9.54 495 1,470 325 965 54 73 108

19668 2.75F10SD 10.54 450 1,330 295 875 60 81 120

19672 2.75F12SD 12.54 380 1,120 250 735 72 97 144

19674 2.75F14SF 14.54 325 965 215 635 85 113 170

19676 2.75F16SF 16.54 285 850 185 555 96 130 192

19678 2.75F18SF 18.54 255 755 170 495 108 146 216

11901 / 11902 / 11903 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 2.75F6SD 2.75F7SD 2.75F8SD 2.75F9SD 2.75F10SD 2.75F12SD 2.75F14SF 2.75F16SF 2.75F18SF

Number in in in in in in in in in

23282 1922V403 8.7 ————————

23285 1922V443 10.7 9.9 9.1 ——————

23287 1922V484 12.7 12.0 11.2 10.4 9.5 ————

23290 1922V544 15.7 15.0 14.2 13.4 12.6 10.9 ———

23293 1922V646 20.8 20.1 19.3 18.5 17.7 16.0 14.2 — —

23295 1922V686 22.8 22.1 21.3 20.5 19.7 18.0 16.3 14.5 —

23298 1922V726 24.8 24.1 23.3 22.5 21.7 20.0 18.3 16.5 14.7

23300 1922V806 28.8 28.1 27.3 26.5 25.7 24.0 22.3 20.6 18.7

NEMA Motor

Frame Recommended Motor Bases

56, 143T 145 / 60, SMB 143

145T, 182T 301, SMB 184

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Variable Speed Drives

Hexadrive Models 12905 and 12907

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hexadrive Series

One-Side Moveable

Adjustable Center Distance

3 through 7-1/2 HP

2926V Belts

Ratio 3 to 1

Model 12905 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

37331 1

3.28 9.70 180 5 3

21870 1-1/8

37350 1-3/8

Model 12907 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

43100 1

3.28 9.70 270 7-1/2 5

37336 1-1/8

21876 1-3/8

12905 / 12907 Driven Sheave Selection Table

Flat Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM Motor 1150 RPM Motor 12905 12907

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb

19630 4.25F8SD* 8.7 660 1,950 435 1,280 126 *

19634 2.75F10SD 10.7 540 1,585 355 1,040 166 252

19639 2.75F12SF 12.7 455 1,335 300 875 200 302

19641 2.75F14SF 14.7 390 1,155 260 755 233 353

19643 2.75F16SF 16.7 345 1,015 230 665 266 403

19645 2.75F18SF 18.7 310 905 205 595 300 453

19647 2.75F20SF 20.7 280 820 185 535 333 504

Note: n * indicates: That 4.25F8SD is NOT recommended for use with 7-1/2 HP drive. This

combination could cause belt slippage.

12905 / 12907 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 2.75F8SD 2.75F10SD 2.75F12SD 2.75F14SF 2.75F16SF 2.75F18SF 2.75F20SF

Number in in in in in in in

23350 2926V486 9.8 — — — — — —

23353 2926V546 12.8 11.3 — — — — —

23357 2926V606 15.8 14.3 12.6 — — — —

23361 2926V666 18.8 17.3 15.6 13.9 — — —

23364 2926V726 21.8 20.3 18.6 17.0 15.2 — —

23367 2926V786 24.8 23.3 21.6 20.0 18.3 16.5 —

23369 2926V856 28.3 26.8 25.2 23.5 21.8 20.0 18.2

23371 2926V906 30.8 29.3 27.7 26.0 24.3 22.5 20.8

23372 2926V966 33.8 32.3 30.7 29.0 27.3 25.6 23.8

NEMA Motor

Frame

Recommended

Motor Bases

56, 143T 145- 60, SMB 143

145T, 182T 301, SMB 184

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Variable Speed Drives

Hexadrive Models 13207, 13210, 13220 and 13230

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hexadrive Series

One-Side Moveable

Adjustable Center Distance

5 through 30 HP

3230 HV Belts

Ratio 2.3 to 1

Note: n * indicates: That 4.25F12SF is NOT recommended for use with 15 to 30 HP drive. This

combination could cause belt slippage.

Model 13207 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

42433 1-1/8

37344 1-3/8 4.43 10.35 270 7-1/2 5

37345 1-5/8

Model 13210 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

21892 1-3/8

4.43 10.35 360 10 7-1/2

21893 1-5/8

21894 1-7/8

Model 13220 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

21915 1-3/8

4.43 10.35 720 15 to 20 10 to 15

21916 1-5/8

27974 1-7/8

Model 13230 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

37348 1-3/8

4.43 10.35 1,080 25 to 30 20 to 25

37349 1-5/8

42439 1-7/8

42440 2-1/8

13207 / 13210 / 13220 / 13230 Driven Sheave Selection Table

Flat Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM Motor 1550 RPM Motor 13207 13210 13220 13230

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb in-lb in-lb

19639 4.25F12SF* 13.0 600 1,390 395 915 243 324 * *

19641 4.25F14SF 15.0 520 1,205 340 790 283 378 756 1,134

19643 4.25F16SF 17.0 460 1,065 300 700 324 432 864 1,296

19645 4.25F18SF 19.0 410 950 270 625 364 486 972 1,458

19647 4.25F20SF 21.0 370 860 245 565 405 540 1,080 1,620

19651 4.25F24SF 25.0 310 720 205 475 486 648 1,296 1,944

13207 / 13210 / 13220 / 13230 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 4.25F12SF 4.25F14SF 4.25F16SF 4.25F18SF 4.25F20SF 4.25F24SF

Number in in in in in in

23382 3230HV620 12.7 — — — — —

23384 3230HV670 15.2 13.5 — — — —

23387 3230HV723 17.9 16.2 14.5 — — —

23389 3230HV821 22.8 21.1 19.4 17.6 — —

23390 3230HV856 24.5 22.9 21.2 19.4 17.6 —

23392 3230HV931 28.3 26.6 24.9 23.2 21.4 17.7

23393 3230HV960 29.7 28.1 26.4 24.7 22.9 19.2

NEMA Motor

Frame

Recommended

Motor Bases

213T, 215T 305-8, SMB 254

254T 310-30, SMB 254

256T, 284T 310-30

286T, 324T

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Variable Speed Drives

Hexadrive Models 14407, 14410, 14420 and 14430

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hexadrive Series

One-Side Moveable

Adjustable Center Distance

5 through 30 HP

4430 V Belts

Ratio 2.7 to 1

Note: n * indicates: That 4.25F12SF is NOT recommended for use with 15 to 30 HP drive. This

combination could cause belt slippage.

Model 14407 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

42467 1-1/8

4.43 12.10 270 7-1/2 5

37360 1-3/8

37361 1-5/8

Model 14410 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

21970 1-1/8

4.43 12.10 360 10 7-1/2

21971 1-3/8

37351 1-5/8

Model 14420 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

21994 1-1/8

4.43 12.10 720 15 to 20 10 to 15

21996 1-3/8

21997 1-5/8

Model 14430 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

37353 1-3/8

4.43 12.10 1,080 25 to 30 20 to 25

22006 1-5/8

22007 1-7/8

22008 2-1/8

14407 / 14410 / 14420 / 14430 Driven Sheave Selection Table

Flat Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM Motor 1150 RPM Motor 14407 14410 14420 14430

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb in-lb in-lb

19639 4.25F12SF* 13.0 600 1,630 395 1,070 243 324 * *

19641 4.25F14SF 15.0 520 1,410 340 925 283 378 756 1,134

19673 4.25F16SF 17.0 460 1,245 300 815 324 432 864 1,296

19645 4.25F18SF 19.0 410 1,115 270 730 364 486 972 1,458

14647 4.25F20SF 21.0 370 1,005 245 660 405 540 1,080 1,620

19651 4.25F24SF 25.0 310 845 205 555 486 648 1,296 1,944

14407 / 14410 / 14420 / 14430 Belt Selection Chart

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 4.25F12SF 4.25F14SF 4.25F16SF 4.25F18SF 4.25F20SF 4.25F24SF

Number in in in in in in

23403 4430V660 13.3 — — — — —

23407 4430V718 16.2 14.6 — — — —

23413 4430V790 19.8 18.2 16.5 — — —

23414 4430V850 22.8 21.2 19.5 17.8 — —

23416 4430V910 25.8 24.2 22.5 20.8 19.1 —

23418 4430V970 28.8 27.2 25.5 23.8 22.1 —

23421 4430V1030 31.8 30.2 28.5 26.9 25.1 21.5

23423 4430V1090 34.8 33.2 31.6 29.9 28.2 24.6

NEMA

Motor Frame

Recommended

Motor Bases

213T, 215T 305-8, SMB 254

254T 310-30, SMB 254

256T, 284T 310-30

286T, 324T

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Variable Speed Drives

Hexadrive Models 21407 and 21401

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hexadrive Series

Two-Side Moveable

Adjustable Center Distance

1/3 through 1 HP

1422V Belts

Ratio 2.6 to 1

Model 21407 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

21089 5/8

2.21 5.80 27 1/2 to 3/4 1/3 to 1/2

21090 3/4

21091 7/8

Model 21401 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

35797 5/8

2.21 5.80 36 13/4

21106 3/4

21107 7/8

21407 / 21401 Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM Motor 1550 RPM Motor 21407 21401

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb

19493 1422G5.5SH 5.3 730 1,915 480 1,255 26 34

19495 1422G6SH 5.8 670 1,750 440 1,150 28 38

19497 1422G7SH 6.8 570 1,490 375 980 34 44

19499 1422G8SH 7.8 500 1,300 330 855 39 51

19501 1422G9SH 8.8 420 1,150 290 755 44 57

19503 1422G10SH 9.8 395 1,035 260 680 49 64

19507 1422G11SH 10.8 360 940 235 615 54 72

19509 1422G12SH 11.8 330 860 215 565 59 77

19511 1422G14SH 13.8 280 735 185 480 69 90

21407 / 21401 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

Size 1422G- 1422G- 1422G- 1422G- 1422G- 1422G- 1422G- 1422G- 1422G-

UPC 5.5SH 6SH 7SH 8SH 9SH 10SH 11SH 12SH 14SH

Number in in in in in in in in in

23255 1422V300 6.3 ————————

23258 1422V360 7.3 8.9 8.1 7.3 —————

23260 1422V420 12.3 11.9 11.1 10.3 9.4 8.6 ———

23252 1422V480 15.3 14.9 14.1 13.3 12.4 11.6 10.7 9.8 —

23263 1422V540 18.3 14.9 17.1 16.3 15.4 14.6 13.7 12.8 11.0

23265 1422V660 24.3 23.9 23.1 22.3 21.5 20.6 19.8 18.9 17.1

23266 1422V720 27.3 26.9 26.1 25.3 24.5 23.6 22.8 21.9 20.2

23267 1422V780 30.3 29.9 29.1 28.3 27.5 26.6 25.8 24.9 23.2

NEMA

Motor Frame Recommended Motor Bases

48, 56

48/56, 200

135, SMB 143

143T

145-60

SMB 143

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Variable Speed Drives

Hexadrive Models 21901, 21902 and 21903

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hexadrive Series

Two-Side Moveable

Adjustable Center Distance

1 through 3 HP

1922V Belts

Ratio 3 to 1

Model 21901 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

21111 5/8

2.70 8.03 54 1-1/2 1

21112 3/4

21113 7/8

21114 1

21115 1-1/8

Model 21902 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

26344 5/8

2.70 8.03 72 21-1/2

21132 3/4

21133 7/8

21135 1

21136 1-1/8

Model 21903 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

27323 5/8

2.70 8.03 108 3 2

21139 3/4

21141 7/8

21142 1

21143 1-1/8

21901 / 21902 / 21903 Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM Motor 1150 RPM Motor 21901 21902 21903

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb in-lb

19520 1922G7SK 6.78 700 2,070 460 1,360 46 61 92

19522 1922G8SK 7.78 610 1,805 400 1,185 52 70 104

19523 1922G9SK 8.78 540 1,600 355 1,050 60 79 120

19524 1922G10SK 9.78 485 1,435 315 940 66 88 132

19528 1922G12SK 11.78 400 1,190 265 780 80 106 160

19529 1922G14SK 13.78 345 1,020 225 670 93 124 186

19531 1922G16SK 15.78 300 890 200 585 106 142 212

21901 / 21902 / 21903 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 1922G7SK 1922G8SK 1922G9SK 1922G10SK 1922G12SK 1922G14SK 1922G16SK

Number in in in in in in in

23282 1922V403 8.5 — — — — — —

23285 1922V443 10.2 9.7 8.9 ————

23287 1922V484 12.5 11.8 11.1 10.2 ———

23290 1922V544 15.6 14.8 14.1 13.2 11.5 — —

23293 1922V646 20.7 19.9 17.1 18.3 16.6 14.9 13.1

23295 1922V686 22.7 21.9 23.1 20.3 18.6 16.9 15.2

23298 1922V726 24.7 23.9 26.1 22.3 20.6 18.9 17.2

23300 1922V806 28.7 27.9 29.1 26.3 24.7 23.0 21.2

NEMA Motor

Frame

Recommended Motor

Bases

56, 143T 145-60, SMB 143

145T, 182T 301, SMB 184

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Variable Speed Drives

Hexadrive Models 22905 and 22907

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hexadrive Series

Two-Side Moveable

Adjustable Center Distance

3 through 7-1/2 HP

2926V Belts

Ratio 3 to 1

Model 22905 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

37333 1

3.28 9.70 180 5 3

37334 1-1/8

37335 1-3/8

Model 22907 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

43101 1

3.28 9.70 270 7-1/2 5

37338 1-1/8

37339 1-3/8

22905 / 22907 Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM Motor 1150 RPM Motor 22905 22907

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb

19561 2926G8SK 7.7 7445 2,205 490 1,445 142 215

19563 2926G9SK 8.7 660 1,950 435 1,280 161 243

19565 2926G10SK 9.7 595 1,750 390 1,150 180 271

19567 2926G12SK 11.7 495 1,450 325 950 216 327

19569 2926G14SK 13.7 420 1,235 275 810 253 383

19572 2926G15SK 15.7 370 1,080 240 710 290 440

19575 2926G18SK 17.7 325 960 215 630 327 495

22905 / 22907 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 2926G8SK 2926G9SK 2926G10SK 2926G12SK 2926G14SK 2926G16SK 2926G18SK

Number in in in in in in in

23350 2926V486 10.6 9.8 — — — — —

23353 2926V546 13.6 12.8 12.1 — — — —

23357 2926V606 16.6 15.8 15.1 13.5 ———

23361 2926V666 19.6 18.8 18.1 16.5 14.8 — —

23364 2926V726 22.6 21.8 21.1 19.5 17.8 16.1 14.3

23367 2926V786 25.6 24.8 24.1 22.5 20.8 19.1 17.4

23369 2926V856 29.1 28.3 27.6 26.0 24.3 22.6 20.9

23371 2926V906 31.6 30.8 30.1 28.5 26.8 25.2 23.4

23372 2926V966 34.6 33.8 33.1 31.5 29.8 28.2 26.4

NEMA Motor

Frame

Recommended

Motor Bases

184T 305-8, SMB 184

213T, 215T 305-8, SMB 254

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

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Variable Speed Drives

Hexadrive Models 23207, 23210, 23220 and 23230

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the

number shown in the tables above.

Hexadrive Series

Two-Side Moveable

Adjustable Center Distance

5 through 30 HP

3230 HV Belts

Ratio 2.3 to 1

Model 23207 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in RPM RPM

42448 1-1/8

4.43 10.35 in-lb 7-1/2 5

37346 1-3/8

37347 1-5/8

Model 23210 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

21930 1-3/8

4.43 10.35 360 10 7-1/2

21931 1-5/8

27973 1-7/8

Model 23220 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

27976 1-3/8

4.43 10.35 720 15 to 20 10 to 15

21948 1-5/8

21949 1-7/8

Model 23230 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

42457 1-3/8

4.43 10.35 1,080 25 to 30 20 to 25

21958 1-5/8

21959 1-7/8

42460 2-1/8

23207 / 23210 / 23220 / 23230 Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Driven Torque

Model PD 1750 RPM Motor 1150 RPM Motor 23207 23210 23220 23230

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb in-lb in-lb

19586 3230G10.4SF 10.0 775 1,810 510 1,190 225 300 600 900

19588 3230G12.4SF 12.0 650 1,505 425 990 270 360 720 1,080

19590 3230G14.4SF 14.0 555 1,290 365 850 315 420 840 1,260

19592 3230G16.4SF 16.0 485 1,130 320 740 360 480 960 1,440

19594 3230G18.4SF 18.0 430 1,005 285 660 405 540 1,080 1,620

23207 / 23210 / 23220 / 23230 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 3230G10.4SF 3230G12.4SF 3230G14.4SF 3230G16.4SF 3230G18.4SF

Number in in in in in

23382 3230HV620 15.0 13.4 — — —

23384 3230HV670 17.5 15.9 14.3 — —

23387 3230HV723 20.2 18.6 16.9 15.2 —

23389 3230HV821 25.1 23.5 21.8 20.2 18.4

23390 3230HV856 26.8 25.2 23.6 21.9 20.2

23392 3230HV931 30.6 29.0 27.4 25.7 24.0

23393 3230HV960 32.0 30.4 28.8 27.1 25.4

NEMA Frame

Size

Recommended

Motor Bases

213T, 215T 305-8, SMB 254

254T 310-30, SMB254

256T, 284T 310-30

286T, 324T 310-30

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VSD-54

Variable Speed Drives

Hexadrive Models 24407, 24410, 24420 and 24430

Item Selection

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Hexadrive Series

Two-Side Moveable

Adjustable Center Distance

5 through 30 HP

4430 V Belts

Ratio 2.7 to 1

Model 24407 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

43059 1-1/8

4.43 12.10 270 7-1/2 5

37364 1-3/8

37365 1-5/8

Model 24410 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

22017 1-3/8

4.43 12.10 360 10 7-1/2

22018 1-5/8

22019 1-7/8

Model 24420 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

22042 1-3/8

4.43 12.10 720 15 to 20 10 to 15

22043 1-5/8

22045 1-7/8

Model 24430 Spring-Loaded Driver Pulley

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

27969 1-3/8

4.43 12.10 1,080 25 to 30 20 to 25

22054 1-5/8

22055 1-7/8

37354 2-1/8

24407 / 24410 / 24420 / 24430 Driven Sheave Selection Table

Grooved Driven Sheave Driven Speed Range Drven Torque

Model PD 1750 RPM Motor 1150 RPM Motor 24407 24410 24420 24430

UPC Min Max Min Max

Number in RPM RPM RPM RPM in-lb in-lb in-lb in-lb

19600 4430G10.4SF 10.0 775 2,115 510 1,390 225 300 600 900

19604 4430G12SK 11.6 670 1,825 440 1,200 260 348 696 1,044

63312 4430G14SF 13.6 570 1,555 375 1,020 306 408 716 1,224

19610 4430G16SK 15.6 500 1,355 330 890 350 468 936 1,404

19614 4430G18.4SF 18.0 435 1,175 285 770 405 540 1,080 1,620

19616 4430G20.4SF 20.0 390 1,055 255 695 450 600 1,200 1,800

19618 4430G24.4SF 24.0 325 880 215 580 540 720 1,440 2,160

24407 / 24410 / 24420 / 24430 Belt Selection Table

Belt Minimum Center Distance by Selected Sheave Size

UPC Size 4430G10.4SK 4430G12SK 4430G14SK 4430G16. SF 4430G18.4SF 4430G20.4SF 4430G24.4SF

Number in in in in in in in

23403 4430HV660 15.6 14.4 — — — — —

23407 4430HV718 18.5 17.3 15.7 — — — —

23413 4430HV790 22.1 20.9 19.3 17.7 ———

23414 4430HV850 25.1 23.9 22.3 20.7 18.7 — —

23416 4430HV910 28.1 26.9 25.3 23.7 21.7 19.9 —

23418 4430HV970 31.1 29.9 28.3 26.7 24.7 23.0 19.4

23421 4430HV1030 34.1 32.9 31.3 29.7 27.7 26.0 22.5

23423 4430HV1090 37.1 35.9 34.3 32.7 30.7 29.0 25.5

NEMA Motor

Frame

Recommended

Motro Bases

213T, 215T 305-8, SMB 254

254T 310-30, SMB254

256T, 284T 310-30

286T, 324T 310-30

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Variable Speed Drives

Hexadrive Models M-007 and 21407

Item Selection

Hexadrive Series

Fixed Center Distance

1/2 through 3/4 HP

1422V Belts

Ratio 7.5 to 1

Model M-007 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

31670 1/2

1.90 5.80 7-1/2 5

31671 5/8

31672 3/4

Model 21407 Spring-Loaded Driver Pulley (“C” or “Z” Mount)

Bore PD Torque HP Rating

UPC Min Max Capacity 1750 1150

Number in in in in-lb RPM RPM

21089 5/8

2.21 5.80 27 3/4 1/2

21090 3/4

21091 7/8

M-007 / 21407 Drives-Belt Selection and Driven Speeds

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM RPM

23255 1422V300 8.70

580 4,380 7.5 to 1 380 2,875 7.5 to 1

23257 1422V340 10.73

23258 1422V360 11.74

23259 1422V400 13.76

580 4,380 7.5 to 1 380 2,875 7.5 to 1

23260 1422V420 14.77

23261 1422V460 16.79

23262 1422V480 17.79

580 4,380 7.5 to 1 380 2,875 7.5 to 1

23263 1422V540 20.81

23264 1422V600 23.82

23265 1422V660 26.84

580 4380 7.5 to 1 380 2,875 7.5 to 1

23266 1422V720 29.85

23267 1422V780 32.85

Notes: n The belt sizes shown in this chart are based upon initial drive set-up with the adjustable pulley at minimum pitch diameter (open) and the

spring-loaded pulley at maximum pitch diameter (closed). The driven speed ranges and the resulting ratios shown in this chart are derived from

mathematical calculations based upon exact center distances, constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ

due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

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Variable Speed Drives

Hexadrive Models HM-3, Pulleys C and Z

Item Selection

Hexadrive Series

Fixed Center Distance

1 through 3 HP

1922V Belts

Ratio up to 8.8 to 1

Notes: n The belt sizes shown in this chart are based upon initial drive set-up with the adjustable pulley at minimum pitch diameter (open) and the

spring-loaded pulley at maximum pitch diameter (closed). The driven speed ranges and the resulting ratios shown in this chart are derived from

mathematical calculations based upon exact center distances, constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ

due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Model HM-3 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

42595 3/4

2.70 8.03 1-1/2 to 5 1 to 2

21514 7/8

21515 1

21516 1-1/8

Spring-Loaded Driven Pulleys for “C” Mounting

HP Rating Torque Model PD Stock Bore

1750 1150 Capacity Min Max

RPM RPM in-lb in in in

1 to 1-1/2 3/4 to 1 54 31901 2.70 8.03 5/8, 3/4, 7/8

2 to 3 1-1/2 to 2 108 31902 1, 1-1/8

Spring-Loaded Driven Pulleys for “Z” Mounting

HP Rating Torque Model PD Stock Bore

1750 1150 Capacity Min Max

RPM RPM in-lb in in in

1 to 1-1/2 3/4 to 1 54 11901 2.70 8.03 5/8, 3/4, 7/8

2 to 3 1-1/2 to 2 108 11902 1, 1-1/8

HM-3 Drives-Belt Selection and Driven Speeds Table

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM RPM

23280 1922V363 9.33

590 4,850 8.2 to 1 390 3,420 8.8 to 1

23281 1922V380 10.20

23282 1922V403 11.37

23283 1922V426 12.54

23285 1922V443 13.40

590 4,850 8.2 to 1 390 3,420 8.8 to 1

23286 1922V454 13.96

23287 1922V484 15.48

23288 1922V526 17.60

23290 1922V544 18.51

590 4,850 8.2 to 1 390 3,420 8.8 to 1

23292 1922V604 21.54

23293 1922V646 23.65

23294 1922V666 24.66

23295 1922V686 25.66

590 4,850 8.2 to 1 390 3,420 8.8 to 1

23296 1922V706 26.67

23299 1922V756 29.18

23301 1922V846 33.70

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Variable Speed Drives

Hexadrive Models HM-7, Pulleys C and Z

Item Selection

Hexadrive Series

Fixed Center Distance

3 through 7-1/2 HP

2926V Belts

Ratio up to 8.7 to 1

Notes: n The belt sizes shown in this chart are based upon initial drive set-up with the adjustable pulley at minimum pitch diameter (open) and the

spring-loaded pulley at maximum pitch diameter (closed). The driven speed ranges and the resulting ratios shown in this chart are derived from

mathematical calculations based upon exact center distances, constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ

due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Model HM-7 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

21541 1-1/8 3.28 9.70 5 to 7-1/2 3 to 5

21543 1-3/8

Spring-Loaded Driven Pulleys for “C” Mounting

HP Rating Torque Model PD Stock Bore

1750 1150 Capacity Min Max

RPM RPM in-lb in in

5 3 180 32904 3.28 9.70 1, 1-1/8

7-1/2 5270 32905 1-3/8

Spring-Loaded Driven Pulleys for “Z” Mounting

HP Rating Torque Model PD Stock Bore

1750 1150 Capacity Min Max

RPM RPM in-lb in in

5 3 180 12904

3.28 9.70

1, 1-1/8

7-1/2 5270 12905 1-3/8

HM-7 Drives-Belt Selection and Driven Speeds Table

Center Distance & Belt Size

Driven Speed Range

1750 Driver 1150 Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM RPM

23346 2926V426 10.62

590 4,000 6.8 to 1 390 3,400 8.7 to 1

23350 2926V486 13.68

23352 2926V521 15.46

23353 2926V546 16.73

23354 2926V574 18.15

590 4,000 6.8 to 1 390 3,400 8.7 to 1

23357 2926V616 19.76

23360 2926V646 21.79

23361 2926V666 22.80

23362 2926V686 23.80

590 4,000 6.8 to 1 390 3,400 8.7 to 1

23364 2926V726 25.82

23367 2926V786 28.84

23368 2926V834 31.25

23369 2926V856 32.36

590 4,000 6.8 to 1 390 3,400 8.7 to 1

23371 2926V906 34.88

23372 2926V966 37.89

23373 2926V1006 39.90

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Variable Speed Drives

Hexadrive Models HM-30, Pulleys C and Z

Item Selection

Hexadrive Series

Fixed Center Distance

7-1/2 through 30 HP

4430V Belts

Ratio up to 7.4 to 1

Notes: n The belt sizes shown in this chart are based upon initial drive set-up with the adjustable pulley at minimum pitch diameter (open) and the

spring-loaded pulley at maximum pitch diameter (closed). The driven speed ranges and the resulting ratios shown in this chart are derived from

mathematical calculations based upon exact center distances, constant motor speeds and manufacturers’ belt speciﬁcations. Actual results will differ

due to variations in any of these factors.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the number shown in the tables above.

Model HM-30 Adjustable Driver Pulley

Bore PD HP Rating

UPC Min Max 1750 1150

Number in in in RPM RPM

21616 1-3/8

4.43 12.10 10 to 30 7-1/2 to 20

21617 1-5/8

21618 1-7/8

Spring-Loaded Driven Pulleys for “C” Mounting

HP Rating Torque Model PD Stock Bore

1750 1150 Capacity Min Max

RPM RPM in-lb in in

10 7-1/2 360 34407

4.43 12.10

1-3/8, 1-5/8

15 10 540 34410

20 to 30 15 to 20 1,080 34420 1-7/8, 2-1/8

Spring-Loaded Driven Pulleys for “Z” Mounting

HP Rating Torque Model PD Stock Bore

1750 1150 Capacity Min Max

RPM RPM in-lb in in

10 7-1/2 360 14407

4.43 12.10

1-3/8, 1-5/8

15 10 540 14410

20 to 30 15 to 20 1,080 14420 1-7/8, 2-1/8

HM-30 Drives-Belt Selection and Driven Speeds Table

Center Distance & Belt Size

Driven Speed Range

1750 RPM Driver 1150 RPM Driver

UPC Belt Size CD Min Max Ratio Min Max Ratio

Number in RPM RPM RPM

23396 4430V548 13.88

640 3,200 5.0 to 1 425 3,140 7.4 to 1

23397 4430V555 14.24

23399 4430V578 15.41

23400 4430V600 16.53

23402 4430V630 18.05

640 3,200 5.0 to 1 425 3,140 7.4 to 1

23403 4430V660 19.57

23405 4430V690 21.09

23409 4430V730 23.11

23411 4430V760 24.63

640 3,200 5.0 to 1 425 3,140 7.4 to 1

23413 4430V790 26.15

23414 4430V850 29.17

23416 4430V910 32.19

23418 4430V970 35.21

640 3,200 5.0 to 1 425 3,140 7.4 to 1

23421 4430V1030 38.23

23423 4430V1090 41.25

23426 4430V1150 44.26

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Variable Speed Drives

Hexadrive HEC

Item Selection

Hexadrive Series

Fixed Center Distance

Adjustable Pulley Control Options

There are two additional variations of the standard “HM” Hexadrive

adjustable pulley, giving the option of speed change by electric

remote control or by using an external linear actuator. Either method

offers convenience and safety in those situations where the pulley

drive is inaccessible or in a hazardous location.

Hexact Electric Control Method

The Hexact Electric Control, or “HEC” pulley, operates in the

same manner as the standard “HM” adjustable pulley, except the

handwheel is replaced by a servo motor drive that opens and closes

the pulley ﬂanges. A separate control station, the Model CN-2601,

is wired to the HEC pulley servo motor to provide speed adjustment

from a remote location. The switch that is part of the CN-2601 control

is a three-position toggle switch suitable for panel mounting. A wiring

diagram is included, and the user must provide wires and a 110-volt

power source for the servo motor. The CN-2601 Control must be

ordered separately, and a Model 501 Torque Arm Bracket is also

required.

All adjustable pulleys in our Hexadrive series, including the M-007,

are available with the electric control option. When ordering, simply

substitute HEC for M or HM. For example, the Model HM-3 manually

adjustable pulley has the same drive characteristics as the Model

HEC-3 electrically adjustable pulley. The only dimension differences

are the overall length of the pulley and the torque arm.

HEC Adjustable Pulley

OAL

Interchange Selection Table

Manual HLA HEC

Adjustable Adjustable Adjustable

Pulley Pulley Pulley

M-007 —HEC-007

HM-3 HLA-3 HEC-3

HM-7 HLA-7 HEC-7

HM-30 HLA-30 HEC-30

HEC Pulley Dimension Data

OAL L2 L1

HEC Adjustable in in in

HEC-007 7.00 64.75

HEC-3 8.75 64.75

HEC-7 11.56 65.25

HEC-30 13.75 67.25

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Variable Speed Drives

Hexadrive HLA

Dimensional Data

Hexadrive Series

Hexact Linear Actuation Method

The HLA adjustable pulley can be used in place of the standard “HM” pulley

where an external mechanical control is available. Typical control methods

include hydraulic cylinder, air cylinder, and lever. The adapter nut located on

the end of the HLA pulley will accept a threaded rod or a clevis with cross

pins. The actuator linkage must be on the center line of the pulley, but radial

freedom is required to relieve loads caused by misalignment of the linkage.

Actuation rate (closing the moveable ﬂange) should not exceed

2-1/2 inches per minute.

To specify the correct pulley, simply substitute the HLA preﬁx for the HM. For

example, the Model HLA-7 pulley has the same drive characteristics as the

Model HM-7 handwheel-type pulley. Refer to the adjacent chart for dimensional

information. A torque arm bracket is NOT required for the HLA drive.

HLA Adjustable Pulley

HLA Pulley Actuation Recommendations

ADAPTOR NUT FOR FLANGE

LATERAL MOVEMENT WITH

MECHANICAL OR HYDRAULIC

ACTUATION.

SEE ENGINEERING NOTE

Pulley Dimensional Data

Dimensons HLA-3 HLA-7 HLA-30

in / lbs in / lbs in / lbs

“A” OD 8.25 in 10.00 in 12.50 in

“B” Belt Top Width 1.18 in 1.81 in 2.75 in

“C” 0.63 in 0.80 in 0.78 in

“D” @ Min. PD 2.52 in 3.59 in 5.19 in

“E” Bore Depth 3.5 in 6.00 in 7.5 in

“F” Max. Opening 8.37 in 10.17 in 12.83 in

“G” Min. Opening 7.31 in 8.75 in 10.81 in

“H” Thru Hole 0.39 in 0.39 in 0.39 in

“I” Across Flats 1.12 in 1.31 in 1.48 in

“J” Nut Dia 1.18 in 1.38 in 1.57 in

“K” Max. Thrust 472 lbs 765 lbs 1,015 lbs

“L” Dia. 3.00 in 3.75 in 4.5 in

“M” Thread 5/8 - 11 UNC 3/1 - 10 UNC 3/4 - 10 UNC

“N” Max. Depth 0.78 in Dia x 1.12 in 0.87 in Dia x 1.44 in 0.87 in Dia x 1.62 in

“P” Flat Length 0.75 in 1.00 in 1.00 in

“R” 1.00 in 1.25 in 1.12 in

“S” Max. Depth 2.00 in 2.50 in 3.00 in

Note: n To accommodate connection equipment

misalignments all pivot points should

have a loose ﬁt.

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Variable Speed Drives

Adjusta-Sheave Series

Item Selection

Adjusta-Sheave Series

Variable Pitch Sheaves

5 through 30 HP

Wide Variable Speed Belts

The Lovejoy Adjusta-Sheave can be a cost-saving alternative to a

spring-loaded pulley when speed change is infrequent, such as with

seasonal or long-running applications. To change speeds the drive is

shut down, the belt removed, and the pitch diameter is set by means

of an internal adjusting screw. Set-up is simple because the nameplate

has a dimension chart that relates the ﬂange separation to the pitch

diameter where the belt will be positioned.

The Adjusta-Sheave design incorporates features of the Hexadrive

series, eliminating the need for internal drive keys, thus providing more

efﬁcient transfer of power and longer life.

Features

Ratings ranging from 5 through 30 HP and speed ratios up to 2.5 to 1 ■

All models use wide variable speed belts ■

No lubrication is required ■

Belt alignment is maintained at all times due to the two moveable ■

cast iron ﬂanges

There are two methods of speed change with the Adjusta-Sheave:

it can be used in place of the spring-loaded driver pulley, running to

a ﬁxed diameter companion sheave; or it can be used as the driven

companion with a two-side moveable spring-loaded driver pulley. This

second method actually increases the speed ratio of a drive package,

because it can be broadened by changing the pitch diameter of the

driven Adjusta-Sheave to extend the high and low speed limits. Both

methods are adjustable center drives, requiring use of an adjustable

motor base.

Adjusta-Sheave

Adjusta-Sheave Variable Pitch Sleaves Inch Bore and Keyway Table

Model Bore and Keyway

1-1/8

1/4 x 1/8

1-3/8

5/16 x 5/32

1-5/8

3/8 x 3/16

1-7/8

1/2 x 1/4

LAS25-10.25 27160 27161 27163 27164

LAS32-10.25 —24165 27166 27167

LAS44-10.75 —27168 27169 27170

LAS44-12.50 —27171 27172 27173

Adjusta-Sheave Selection Guide and Dimension Table

OAL L2 L1 OD

Model Recommended Speed PD Belt Stock Bores

HP Ratio Max Min Size

in in in in in in in

LAS25-10.25 5-7-1/2 2:1 9.95 5.00 2530V 1-1/8, 1-3/8, 1-5/8, 1-7/8 5.38 3.28 2.69 10.25

LAS32-10.25 10-25 2.2:1 10.40 4.70 3230HV 1-3/8, 1-5/8, 1-7/8 7.37 4.00 3.68 10.75

LAS44-10.75 10-30 2.1:1 10.35 4.84 4430V 1-3/8, 1-5/8, 1-7/8 7.37 4.62 3.68 10.75

LAS44-12.50 10-30 2.5:1 12.10 4.84 4430V 1-3/8, 1-5/8, 1-7/8 7.37 5.06 3.68 12.50

Note: n When referencing the Lovejoy UPC number in this table, include

685144 as a preﬁx to the numbers shown.

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Variable Speed Drives

Adjustable Motor Bases

Overview

Adjustable Motor Bases

Direct Coupled Electric Servo Motor

Controlled Base – Type ERC

Adjustable Motor Bases

Sliding and Tilting Bases

It is necessary to change the distance between the motor and driven shaft in

order to change speed with an adjustable center drive. The best way to do

this is with an adjustable motor base. Lovejoy offers four basic types of motor

bases to satisfy requirements of space, convenience, interchangeability,

motor frame size, and economy.

Sliding “SMB” Type

Models: SMB143, SMB184, and SMB254

SMB motor bases are extremely low proﬁle and made of strong, lightweight

steel, plated for protection against rust and corrosion. A folding knurled

adjusting handle replaces the common round handwheel to offer easy speed

adjustment with minimum effort and no tools. Adjustable maximum and

minimum speed stops are included. The adjusting handle is easily removed

for the addition of a sprocket or universal joint to adapt to existing control

methods.

Features

Three sizes available to ﬁt NEMA motor frames from fractional through 15 ■

horsepower

Simple installation provided by a one-piece motor mounting plate ■

Best possible belt alignment maintained because the motor shaft remains ■

perpendicular to the plane of adjustment

Slotted for standard NEMA motor frame mounting, but can be drilled for ■

special mounting sizes to offer ﬂexibility of design

For remote control in hazardous or inconvenient locations, Lovejoy offers

electric servo motor controlled bases in the SMB style, both chain-driven

(MRC) and direct coupled (ERC). Both types come complete with motor,

control, and wiring diagram.

Sliding Cast Iron Type

Models: 135, 145-60, 301, 302-3, 403, 305-8 and 310-30

The original Lovejoy design, made of durable cast iron and steel.

Features

Models are available to accommodate motors from fractional through 30 ■

horsepower

The independent, slotted motor mounting rails offer great ﬂexibility of ■

design, as they can be used to mount NEMA motor frames as well as IEC

motors and other products (gearmotors, gear reducers, etc.)

Adjustable maximum and minimum speed stops are included ■

For remote control in hazardous or inconvenient locations, Lovejoy offers

electric servo motor-controlled bases in some models of the cast iron bases,

both direct coupled (ERC) and chain-driven (MRC). Also, stainless steel

guide rods and adjusting screws are available on some models for severe

environments or applications subject to washdown.

Sliding Cast Iron Base Upper View

Sliding Cast Iron Base Side View

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Variable Speed Drives

Motor Base SMB

Dimensional Data

Adjustable Motor Base

SMB (Steel) Base Side View

SMB (Steel) Base Upper View

Sliding Cast Iron Bases (Drawing on page VSD-62)

Model 135 145-60 301 302-3 403 305-8 310-30

UPC Number 19714 19718 19763 19781 19902 19809 19816

A13-1/4 16-1/8 18-1/2 19-3/8 21-3/8 27-7/8 31

B9-7/8 12-5/8 15-1/8 16 18 23-5/8 25-1/4

C6-1/8 7-7/8 8-1/2 8-1/2 8-1/2 11-7/8 14-1/4

D78-3/4 10 10 10 14 15-1/2

E max 810 13 13-7/8 15-7/8 20 22

E min 2-1/8 2-3/4 33345-3/8

F max 2-1/4 3-7/16 3-7/8 3-7/8 3-7/8 5-7/16 6-1/2

F min 13/16 1-5/16 1-7/8 1-7/8 1-7/8 2-5/8 2-7/8

G11-1/8 13-7/8 16-3/8 17-1/4 19-1/4 25-1/4 27-3/8

H slot 3/8 13/32 13/32 13/32 13/32 9/16 5/8

I 1/16 2-1/2 3334-1/4 4-1/4

J 3/8 1-3/4 2-1/8 2-1/8 2-1/8 2-7/8 3-3/4

K2-1/2 33-1/2 3-1/2 3-1/2 56-1/4

L5/16 3/8 3/8 3/8 3/8 1/2 3/4

M2-1/2 4-1/8 4-1/8 4-1/8 4-1/8 6 6

N7/16 7/16 3/4 3/4 3/4 1-1/16 5/8

O slot 3/8 13/32 1/2 1/2 1/2 1/2 3/4

P3/8 9/32 1/2 1/2 1/2 3/4 3/4

Q2-1/8 2-1/8 2-1/8 2-1/8 2-1/8 2-5/8 3-5/8

R5/8 13/16 13/16 13/16 13/16 1-7/16 1-9/16

S1-1/8 1-3/8 1-1/2 1-1/2 1-1/2 2-3/4 3-3/8

T3-1/4 4-3/4 5557-1/8 7-1/8

U1-1/4 1-1/4 22232-3/16

W5-5/8 89-5/16 9-5/16 9-5/16 12-1/2 15

X8-5/8 11-3/8 13-3/8 13-1/4 15-1/4 19-1/4 23

Y (dia) 1/2 5/8 7/8 7/8 7/8 1-1/4 1-5/8

Z (dia) 3/8 1/2 5/8 5/8 5/8 3/4 1

SMB Bases

Model SMB 143 SMB 184 SMB 254

UPC Number 40212 40213 40214

A15-3/4 19-1/2 28-5/8

B12-5/8 15-1/6 23-5/8

C67-1/4 10-3/8

D8-3/4 10 14

E5-1/2 7-1/2 10

E-1 4-1/4 5-1/2 8-1/2

E-2 — — 7-1/2

F max 4-15/32 6-7/32 8-29/64

F min 1-21/32 3-3/4 7-61/64

F-1 max —6-5/16 7-1/4

F-1 min —2-9/16 5-3/8

G13-7/8 17-3/8 26

H—13/32 9/16

H-1 13/32 11/32 7/16

I1-7/8 22-1/8

J1-15/16 22-1/4

K2-1/2 2-5/8 3-7/32

L7/64 9/64 3/16

M3-1/2 3-1/2 4-1/2

N1-3/8 1-3/8 1-13/16

O13/32 13/32 33/64

P1-7/8 1-3/4 2-1/2

Q1-13/32 1-3/4 2-5/16

S7 9 13

T5-1/8 5-3/16 7-1/8

U1-1/4 22-1/2

W7-1/4 912-3/4

X11-3/8 13-3/8 21

Y (dia) 5/8 3/4 1-1/4

Z (dia) 1/2-13 5/8-11 1-5

Travel 5-5/8 711-1/4

Motor Base Selection Guide

200A, 200B 48/56 135 145-60 SMB 143 301, 302-3 403 SMB 184 305-8 SMB 254 310-30

NEMA Motor

Frame Size

48 48 48 56 48, 56 143T, 145T 143T, 145T 184T, 213T 184T, 213T 215T, 254T

56 56 56 143T 143T 182T, 184T 182T, 184T 215T 215T, 254T

256T, 284T

286T, 324T

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx

to the numbers shown.

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Variable Speed Drives

Sliding Dovetail Type

Overview / Dimensional Data

Adjustable Motor Bases

Sliding Dovetail Type

Models: 48/56 LA and 48/56 LB

These are the most compact, lowest-priced sliding motor bases offered

by Lovejoy.

Features

Easy motor mounting and speed adjustment due to the one-piece top ■

plate, which is slotted for NEMA 48 and 56 motor frames

So cost efﬁcient they can be used as belt tensioning bases ■

Tough steel construction makes them exceptionally durable ■

The Model 48/56 LA comes with a convenient hexagon head adjusting

screw for use with your adjustable or socket wrench for fast speed

change, and has a proﬁle height of only 1-1/2 inches. The Model 48/56

LB is equipped with a handwheel and riser blocks that make tool-free

adjustment quick and easy.

Model 200

Model 48/56

Tilting Type

Models: 200A and 200B

These are economical bases featuring pivotal rather than

sliding movement and are designed for use with NEMA 48

and 56 motor frames.

Features

Less space is required to move the motor through the ■

entire speed range because of the use of tilting motor

rails

Ideal for belt tensioning and for easy belt change with ■

cone step pulleys

Can be mounted in any position for added versatility ■

The Model 200A is made of cast iron with a steel adjusting

mechanism, and the Model 200B has a stamped steel

base and motor mounting rails. Overall dimensions and

performance characteristics are the same for both models.

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Variable Speed Drives

Flat Companion Sheaves

Dimensional Data

Companion Sheaves

Flat and Grooved Types for Variable Speed Belts

Lovejoy companion sheaves are made of durable cast iron to assure best

possible wear at the belt contact area. Grooved sheaves, for use with

V-V adjustable center drives, are machined to match the belt width and

angle of standard variable speed belts for optimum efﬁciency. The spoked

design provides strength and light weight. All companion sheaves are

precision balanced for smooth running. The sheaves are bored to accept

standard type tapered bushings for ease of installation, best possible

shaft grip and removal from the shaft without damage to any of the parts.

Refer to page SF-17 for information on bushings.

Flat Grooved Type 1 Grooved Type 2

Flat Companion Sheave Dimensional Data

W L OD

UPC Model Bushing Weight

Number in in in lbs

19656 2.75F4SD 2.75 SD 1.81 4.0 4.0

19660 2.75F6SD 2.75 SD 1.81 6.0 6.0

19662 2.75F7SD 2.75 SD 1.81 7.0 7.0

19664 2.75F8SD 2.75 SD 1.81 8.0 8.0

19666 2.75F9SD 2.75 SD 1.81 9.0 9.0

19668 2.75F10SD 2.75 SD 1.81 10.0 13.0

19672 2.75F12SD 2.75 SD 1.81 12.0 18.0

19674 2.75F14SF 2.75 SF 2.06 14.0 20.0

19676 2.75F16SF 2.75 SF 2.06 16.0 22.0

19678 2.75F18SF 2.75 SF 2.06 18.0 27.0

19680 2.75F20SF 2.75 SF 2.06 20.0 30.0

19628 4.75F7SD 4.75 SD 1.81 7.0 8.0

19630 4.75F8SD 4.75 SD 1.81 8.0 10.5

19634 4.75F10SD 4.75 SD 1.81 10.0 16.0

19636 4.75F11SD 4.75 SD 1.81 11.0 16.0

19639 4.75F12SF 4.75 SF 2.06 12.0 28.0

19641 4.75F14SF 4.75 SF 2.06 14.0 32.0

19643 4.75F16SF 4.75 SF 2.06 16.0 28.0

19645 4.75F18SF 4.75 SF 2.06 18.0 34.0

19647 4.75F20SF 4.75 SF 2.06 20.0 35.0

19651 4.75F24SF 4.75 SF 2.06 24.0 50.0

Notes: n Sheave weights do not include bushing. Sheaves are suitable for operation at speeds up to 6,500 FPM.

n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the numbers shown.

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Variable Speed Drives

Grooved Companion Sleeves

Dimensional Data

Dimensional drawings on page VSD-65.

Grooved Companion Sheaves Dimensional Data

W P OD PD

Belt Model Bushing Weight Type

Series UPC

Number in in in in lbs

1422V 1422G5.5SH 19493 SH 1.13 0.38 5.5 5.3 2.5 1

1422V 1422G6SH 19495 SH 1.13 0.38 6.0 5.8 2.5 1

1422V 1422G7SH 19497 SH 1.13 0.38 7.0 6.8 3.0 1

1422V 1422G8SH 19499 SH 1.13 0.38 8.0 7.8 4.0 1

1422V 1422G9SH 19501 SH 1.13 0.38 9.0 8.8 4.5 1

1422V 1422G10SH 19503 SH 1.13 0.38 11.0 9.8 5.0 1

1422V 1422G11SH 19507 SH 1.13 0.38 11.0 10.8 5.0 1

1422V 1422G12SH 19509 SH 1.13 0.38 12.0 11.8 6.0 1

1422V 1422G14SH 19511 SH 1.13 0.38 14.0 13.8 6.5 1

1922V 1922G7SK 19520 SK 1.69 0.44 7.0 6.8 8.0 1

1922V 1922G8SK 19522 SK 1.69 0.44 8.0 7.8 8.0 1

1922V 1922G9SK 19523 SK 1.69 0.44 9.0 8.8 9.0 1

1922V 1922G10SK 19524 SK 1.69 0.44 10.0 9.8 8.0 1

1922V 1922G12SK 19528 SK 1.69 0.44 12.0 11.8 12.0 1

1922V 1922G14SK 19529 SK 1.69 0.44 14.0 13.8 16.0 1

1922V 1922G16SK 19531 SK 1.69 0.44 16.0 15.8 17.5 1

2322V 2322G7SK 19538 SK 1.69 0.44 7.0 6.8 7.0 1

2322V 2322G8SK 19540 SK 1.69 0.44 8.0 7.8 7.0 1

2322V 2322G9SK 19544 SK 1.69 0.44 9.0 8.8 8.0 1

2322V 2322G10SK 19546 SK 1.69 0.44 10.0 9.8 8.0 1

2322V 2322G12SK 19548 SK 1.69 0.44 12.0 11.8 11.0 1

2322V 2322G14SK 19550 SK 1.69 0.44 14.0 13.8 14.0 1

2322V 2322G16SK 19553 SK 1.69 0.44 16.0 15.8 16.0 1

2926V 2926G8SK 19561 SK 2.13 0.19 8.0 7.7 8.0 1

2926V 2926G9SK 19563 SK 2.13 0.19 9.0 8.7 8.0 1

2926V 2926G10SK 19565 SK 2.13 0.19 10.0 9.7 10.5 1

2926V 2926G12SK 19567 SK 2.13 0.19 12.0 11.7 11.0 1

2926V 2926G14SK 19569 SK 2.13 0.19 14.0 13.7 13.5 1

2926V 2926G16SK 19572 SK 2.13 0.19 16.0 15.7 17.0 1

2926V 2926G18SK 43639 SK 2.13 0.19 18.0 17.7 30.5 1

3230HV 3230G8.4SF 49580 SF 2.38 0.06 8.4 8.0 14.0 1

3230HV 3230G9.4SF 19582 SF 2.38 0.06 9.4 9.0 14.0 1

3230HV 3230G9.6SF 19584 SF 2.38 0.06 9.6 9.2 14.0 1

3230HV 3230G9.9SF 19586 SF 2.38 0.06 9.9 9.5 16.0 1

3230HV 3230G10.4SF 19588 SF 2.38 0.13 10.4 10.0 22.0 1

3230HV 3230G12.4SF 19590 SF 2.38 0.13 12.4 12.0 27.0 1

3230HV 3230G14.4SF 19590 SF 2.38 0.13 14.4 14.0 34.0 1

3230HV 3230G16.4SF 19592 SF 2.38 0.13 16.4 16.0 39.0 1

3230HV 3230G18.4SF 19594 SF 2.38 0.13 18.4 18.0 45.0 1

3230HV 3230G20.4SF 19596 SF 2.38 0.13 20.4 20.0 47.0 1

4430V 4430G8.4SF 19598 SF 3.13 0.13 8.4 8.0 20.0 2

4430V 4430G10.4SF 19600 SF 3.13 0.13 10.4 10.0 22.0 2

4430V 4430G12SK 19604 SK 3.13 0.25 12.0 11.6 19.0 2

4430V 4430G14SF 63312 SF 3.13 0.25 14.0 13.6 23.0 2

4430V 4430G16SK 19610 SK 3.13 0.19 16.0 15.6 27.5 2

4430V 4430G18.4SF 19614 SF 3.13 0.19 18.4 18.0 51.5 2

4430V 4430G20.4SF 19616 SF 3.13 0.19 20.4 20.0 56.5 2

4430V 4430G24.4SF 19618 SF 3.13 0.19 24.4 24.0 67.5 2

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the numbers shown.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

407

www.lovejoy-inc.com VSD-67

Variable Speed Drives

Belts

Item Selection

Variable Speed Belts

7/8 through 2-3/4 inch Top Width

Lovejoy variable speed belts are designed for long life, even tracking, smooth

running, and efﬁcient transmission of power through wide speed ranges. They are

made of special synthetic compounds to provide maximum service in conditions

where oil, heat (up to 200° F), and static are present. Maximum recommended belt

speed is 5,600 feet per minute.

1422V Belt 1922V Belt 2322V Belt 2926V Belt 2530V Belt 3230V Belt 4430V Belt

Variable Speed Belts UPC Number Selection Table

Belt Pitch UPC Belt Pitch UPC Belt Pitch UPC

Size Length Number Size Length Number Size Length Number

in in in

1422V300 30.0 23255 2322V364 36.4 23312 3230HV570 57.0 23379

1422V340 34.0 23257 2322V384 38.4 23314 3230HV585 58.5 23380

1422V360 36.0 23258 2322V421 42.1 23315 3230HV603 60.3 23381

1422V400 40.0 23259 2322V441 44.1 23317 3230HV620 52.0 23382

1422V420 42.0 23260 2322V481 48.1 23318 3230HV670 67.0 23384

1422V460 46.0 23261 2322V521 52.1 23319 3230HV685 68.5 23385

1422V480 48.0 23262 2322V541 54.1 23320 3230HV702 70.2 23386

1422V540 54.0 23263 2322V601 60.1 23322 3230HV723 72.3 23387

1422V600 60.0 23264 2322V621 62.1 23324 3230HV821 82.1 23389

1422V660 66.0 23265 2322V661 66.1 23326 3230HV856 85.6 23390

1422V720 72.0 23266 2322V681 68.1 23327 3230HV931 93.1 23392

1422V780 78.0 23267 2322V701 70.1 23328 3230HV960 96.0 23393

1922V321 32.1 23278 2322V721 72.1 23329 3230HV1060 106.0 38064

1922V363 36.3 23280 2322V801 80.1 23330 4430V548 54.8 23396

1922V380 38.0 23281 2322V826 82.6 23331 4430V555 55.5 23397

1922V403 40.3 23282 2322V886 88.6 23333 4430V578 57.8 23399

1922V426 42.6 23283 2322V1001 100.1 23335 4430V600 60.0 23400

1922V443 44.3 23285 2322V1271 127.1 23337 4430V630 63.0 23402

1922V454 45.4 23286 2926V426 42.6 23346 4430V660 66.0 23403

1922V484 48.4 23287 2926V486 48.6 23350 4430V690 69.0 23405

1922V526 52.6 23288 2926V491 49.1 23351 4430V718 71.8 23407

1922V544 54.4 23290 2926V521 52.1 23352 4430V730 73.0 23409

1922V604 60.4 23292 2926V546 54.6 23353 4430V760 76.0 23411

1922V646 64.6 23293 2926V574 57.4 23354 4430V790 79.0 23413

1922V666 66.6 23294 2926V586 58.6 23355 4430V850 85.0 23414

1922V686 68.6 23295 2926V606 60.6 23357 4430V910 91.0 23416

1922V706 70.6 23296 2926V616 61.6 23358 4430V970 97.0 23418

1922V726 72.6 23298 2926V646 64.6 23360 4430V1030 103.0 23421

1922V756 75.6 23299 2926V666 66.6 23361 4430V1090 109.0 23423

1922V806 80.6 23300 2926V686 68.6 23362 4430V1150 115.0 23426

1922V846 84.6 23301 2926V706 70.6 23363 4430V1320 132.0 23430

1922V966 96.6 23303 2926V726 72.6 23364 4430V1610 161.0 23434

2926V776 77.6 23366

2926V786 78.6 23367

2926V834 83.4 23368

2926V856 85.6 23369

2926V906 90.6 23371

2926V966 96.6 23372

2926V1006 100.6 23373

2926V1086 108.6 23375

2926V1146 114.6 23376

Note: n When referencing the Lovejoy UPC number in this table, include 685144 as a preﬁx to the numbers shown.

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

408 630-852-0500

JWJISCJSFMCGHPGDDTSPUJVSDRSLDED

JW JIS CJ SF MC G HP GD D T SP UJ VSD R SLD ED

VSD-68

Variable Speed Drives

Engineering Data

Service Factors For Variable Speed Pulleys

Duty Description Service Factor

Normal Starting infrequent. Uniform load, not in excess of 110% of motor HP. Driven RPM within ranges in this catalog. 1.00

Moderately Heavy Frequent starting: less than 15 minute intervals. Pulsating or light shock loads (not in excess of 125% of rated motor HP). High

inertia of driven components such as large ﬂywheels. 1.30

Heavy Frequent reversing: less than 15 minute intervals or where rapid braking occurs. Heavy shock loads up to 150% of rated motor HP. 1.75

Pulley Service Factors

Useful Equations for Variable Speed Belt Drives

Notes: n The service factors will help in determining the horsepower of the drive, based on the power requirements at the driven shaft. Multiply the “actual”

horsepower by the service factor to account for conditions such as described above. The selection of the variable speed pulley must match the ﬁnal

operating horsepower.

n These Service Factors are designed to prevent belt slippage of more than 3%.

In All Equations, Unless Otherwise Noted:

d = Pitch Diameter of the driver pulley

D = Pitch Diameter of the driven pulley

Nd = RPM of driver pulley, “d”

ND = RPM of driven pulley, “D”

1. RPM at driven pulley: ND =

2. Pitch Diameter at driven: D =

3. Belt pull or net belt tension

permissable for each spring loaded pulley: P =

Where HP is the HP rating of the Variable Speed Pulley at Nd RPM

and d is the maximum pitch diameter of the Variable Speed Pulley.

4. Torque and horsepower at driven pulley with the Variable Speed Pulley

mounted on the driver shaft.

(Constant torque drive)

T = P x D/2, constant torque throughout speed range

HP = HP decreases in proportion to speed

5. Torque and horsepower at driven pulley with the Variable Speed Pulley

mounted on the driven shaft.

(Constant horsepower)

T = P x D/2, torque decreases in proportion to D/2

HP =

6. Exact Belt length: L = 2C + 1.57 (D + d) + (D - d)2

C = Center to center distance

7. Approximate Belt length: L = 2C + 1.57 (D + d)

8. Center to Center distance: C =

9. Belt Speed: FPM =

p = 3.14 FPM = feet per minute

10. Rim speed of pulley:

ND = RPM of pulley and D = outside diameter of pulley

V = rim speed in feet per minute

V = NdpD

NdpD

where ND = RPM of pulley and D =

diameter (in) at which belt is riding.

L - [1.57 (D + d) + (D - d)2/L]

T x ND

63000

HP constant as T(torque) decreases, ND (RPM

of driven pulley) increases in proportion

Nd x d

T x Nd

63000

Nd x d

HP x 126000

Nd x d

Useful Information Regarding Pump & Fan Drives

Driven Equipment:

Displacement Pumps

Centrifugal Pumps, Fans, and Blowers

Horsepower for displacement and centrifugal pumps

HP = gallons per min x head in feet

3960 x efﬁciency

Horsepower for fans and blowers

HP = cu ft per min x pressure (Ib per sq ft)

33,000 x efﬁciency

Effect of Speed on Horsepower:

HP varies in direct proportion to RPM.

HP varies as the cube of the speed (this would mean that a 10% increase

in the speed of the pump would require 33% more HP).

1 cu ft per second = 448.8 GPM

1 Ib per sq in pressure = a head of 2.309 ft for water weighing 62.36 Ib per

cu ft at 60° F.

Variable Speed Drives Catalog

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