L011413 Bowex User Manual
User Manual: L011413 - Bowex User Manual
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BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
BoWex®
Curved-tooth gear couplings
The curved teeth avoid any edge pressure on the coupling when
angular and radial misalignments occur.
Explosion-proof use
BoWex®couplings design M up to size 65 including an electrically conductive nylon sleeve
(PA-CF) are suitable for power transmission in drives in hazardous areas. The couplings are
certified and conform to EC standard 94/9/EC (ATEX 95) as units of category
2G/2D and thus suitable for the use in hazardous areas of zone 1, 2, 21 and 22. Please read
through our information included in the Type Examination Certificate and the
operating and installation instructions at www.ktr.com
On couplings with straight teeth, high edge pressure contributes
to considerable wear at the contact surfaces when misalignment
is present.
hub
sleeve
sleeve
Straight tooth hub
hub
sleeve
sleeve
Double-crowned BoWex® hub
Coupling description
General description:
BoWex®– couplings are designed to transmit torque between drive and driven components via curved tooth hubs and a nylon sleeve.
The combination of these components provides a torsionally stiff connection and accommodation for misalignments. This product is
available in materials and elements that are optimized for close coupled applications.
Function and Design
BoWex®- couplings, suitable for horizontal or vertical applications, are constructed from a variety of materials providing a torsionally
stiff platform optimizing the balance between coupling performance and application requirements. The double-crowned tooth reduces
edge loading while accommodating misalignments and transmitting torque. The symmetrical relationship of the hubs and floating nylon
sleeve allows for minimal maintenance in a close coupled design.
The design of the BoWex®allows the nylon sleeve to float independently of the two hubs thus minimizing restoring forces. The result is
a double-cardanic coupling with high torsional stiffness, low inertia and chemical resistance while accommodating large axial move-
ment. Unlike other gear couplings, BoWex®does not require lubrication and can be used for shaft to shaft and engine flywheel drive
applications.
BoWex®is available in a variety of standard mounting options to accommodate shafts up to 4.813 inches and a maximum nominal tor-
que of 22,120 lb-in while still accommodating blind assembly. As defined by the sleeve, BoWex®couplings are suitable for moderate
industrial temperature ranges. All these design features reduce the maintenance required during the life-cycle of the coupling.
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 69
TKN TKW
junior 14 / M-14 0.0007 0.0134 44 89 22 6,000
junior 19 / M-19 0.0011 0.0023 71 140 35 6,000
junior 24 / M-24 0.0017 0.0034 106 210 53 6,000
14 0.0013 0.0040 89 260 44 14,000
19 0.0023 0.0067 140 420 71 11,800
24 0.0028 0.0080 170 530 89 10,600
28 0.0063 0.0188 390 1,190 200 8,500
32 0.0084 0.0255 530 1,590 260 7,500
38 0.0113 0.0335 700 2,120 350 6,700
42 0.0134 0.0415 880 2,650 440 6,000
45 / 48 0.0201 0.0590 1,230 3,710 610 5,600
65 0.0536 0.1595 3,360 10,090 1,680 4,000
80 0.0978 0.2948 6,190 18,580 3,090 3,150
100 0.1742 0.5092 10,620 31,860 5,310 3,000
125 0.3484 1.0452 22,120 66,380 11,060 2,120
14 0.0020 0.0063 130 390 66 14,000
19 0.0034 0.0101 210 630 100 11,800
24 0.0040 0.0121 260 790 130 10,600
28 0.0094 0.0295 610 1,850 300 8,500
32 0.0121 0.0375 790 2,380 390 7,500
38 0.0174 0.0509 1,060 3,180 530 6,700
48 0.0281 0.0844 1,770 5,310 880 5,600
65 0.0777 0.2412 4,950 14,860 2,470 4,000
48 0.0335 0.0670 2,120 5,310 1,060 5,000
T 48 0.0402 0.1045 2,650 6,630 1,320 5,000
T 55 0.0630 0.0161 3,980 9,950 1,990 4,500
65 0.0911 0.1876 5,750 14,160 2,870 3,600
T 65 0.1126 0.2814 7,080 17,700 3,540 3,600
T 70 0.1407 0.3511 8,850 22,120 4,420 3,400
80 0.1742 0.3350 10,620 26,550 5,310 3,000
T 80 0.2144 0.0523 13,270 33,190 6,630 3,000
100 0.2814 0.5762 18,140 45,580 9,070 2,500
T 100 0.3484 0.8710 22,120 55,310 11,060 2,500
125 0.5896 1.1926 37,610 94,700 18,800 2,500
0.0188 0.0549 1,150 3,450 310
6,2000.0214 0.0630 1,320 3,980 390
0.0255 0.0764 1,590 4,770 470
0.0281 0.0844 1,770 5,310 530
5,6000.0322 0.0965 2,030 6,100 610
0.0389 0.1179 2,470 7,430 740
0.0496 0.1474 3,090 9,290 920
4,5000.0563 0.1688 3,540 10,620 1,060
0.0697 0.2104 4,420 13,270 1,320
0.0603 0.1809 3,800 11,410 1,140
4,3000.0697 0.2104 4,420 13,270 1,320
0.0871 0.2613 5,480 16,460 1,640
0.1193 0.3578 6,630 19,910 1,990
3,6000.1286 0.3993 8,400 25,220 2,520
0.1688 0.4985 10,620 31,860 3,180
0.1742 0.5226 11,060 33,190 3,310
3,0000.2144 0.6700 14,160 42,480 4,240
0.2814 0.8308 17,700 53,100 5,310
0.2814 0.8308 17,700 53,100 5,310
2,7000.3484 1.0452 22,120 66,380 6,630
0.4824 1.3400 28,320 84,960 8,490
0.4154 1.2623 26,550 79,650 7,960
2,3000.5494 1.6830 35,400 106,210 10,620
0.6968 2.1038 44,250 132,760 13,270
0.5628 1.6884 35,400 106,210 10,620
2,1000.7236 2.1842 46,020 141,610 14,160
0.9112 2.7336 57,530 177,020 17,700
0.7772 2.3182 48,680 146,040 14,600
1,8000.9782 2.9480 61,950 185,870 18,580
1.2596 3.7922 79,650 238,970 23,890
40Sh
42 HE 50Sh
65Sh
40Sh
48 HE 50Sh
65Sh
40Sh
65 HE 50Sh
65Sh
40Sh
G 65 HE 50Sh
65Sh
40Sh
80 HE 50Sh
65Sh
40Sh
G 80 HE 50Sh
65Sh
40Sh
100 HE 50Sh
65Sh
40Sh
125 HE 50Sh
70Sh
40Sh
G 125 HE 50Sh
70Sh
40Sh
150 HE 50Sh
70Sh
BoWex
®
Curved-tooth gear couplings
Design and size
Power, Torque and Speed
Power P [HP]
n [rpm]
Rated Maximum TK max.
Torque TK
[lb-in] Max. speed
[rpm]
Type
plug-in coupling /
junior M
Type
M
l
AS
Spec.-I
SG
SSR
Type
M...C
Type
ELASTIC
HE
HEW
HEW-ZS
HE-ZS
HEG
Type
FLE-PA
Technical data
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3
73
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
BoWex®
Curved-tooth gear couplings
100 200 400 800
SZ1.0 1.2 1.4 1.6
MA=M
L=
JL
JA+ JL
JA
JA+ JL
-40 °F
+140 °F +158 °F +176 °F +194 °F +212 °F +230 °F +248 °F
PA 6.6 1.0 1.2 1.4 1.6 1.8 - -
PA-CF 1.0 1.1 1.2 1.4 1.6 1.9 2.2
SA/SL
1.5
1.8
2.5
TKN ⱖTN· St
TN[lb-in] = 63,025 · PAN[HP]
nAN [rpm]
Coupling selection
Description Symbol Definition or explanation
Rated torque
of coupling
TKN Torque that can continuously be transmitted over the
entire permissible speed range.
Maximum torque
of coupling
TK max. Torque that can be transmitted as dynamic load
ⱖ105times or 5 x 104as vibratory load, respectively,
during the entire operating life of the coupling.
Vibratory torque
of coupling
TKW Torque amplitude of the permissible periodical torque
fluctuation with a frequency of 10 Hz and a basic load
of TKN or dynamic load up to TKN, respectively.
Damping power
of coupling
PKW Permissible damping power with an ambient
temperature of + 86 °F.
Rated torque
of machine
TNStationary rated torque on the coupling
Peak torque
of machine
TSPeak torque on the coupling
Peak torque
on the driving side
TAS Peak torque with torque shock on the driving side,
e. g. breakdown torque of the electric motor.
Description Symbol Definition or explanation
Peak torque
of load side
TLS Peak torque with torque shock on load side, e. g.
braking.
Vibratory torque
of machine
TWAmplitude of the vibratory torque effective on the cou-
pling.
Damping power
of the machine
PWDamping power which is effective on the coupling
due to the load produced by the vibratory torque.
Moment of inertia
of driving side
Moment of inertia
of load side
JA
JL
Total of moments of inertia existing on the driving or
load side referring to the coupling speed.
Rotational inertia
coefficient of driving side
Rotational inertia
coefficient of load side
MA
ML
Factor taking into account the mass distribution with
shocks and vibrations produced on the driving or
load side.
Service factor SZfor starting frequency
starting frequency/h
Drive-sided shock
TS= TAS · MA· SA
Load-sided shock
TS= TLS · ML· SL
TK max ⱖTS· SZ· St+ TN· St
Service factor Stfor temperature
Service factor SA/SLfor shocks
Material of
sleeve
Allowable load on the hub keyway
The shaft hub connection has to be reviewed by the customer.
Allowable surface pressure according to DIN 6892 (method C).
Polyamide 4,300 psi (up to + 104 °F)
Sintered metal 26,000 psi
Material steel 36,000 psi
for other steel materials pperm. = 0,9 · Re(Rp0.2)
gentle shocks
average shocks
heavy shocks
1Drives without alternating torque
The coupling is selected by checking the rated torques
TKN and maximum torque TK max.
The BoWex®coupling is selected in accordance with DIN 740 part 2. The coupling must be selected so that the allowable coupling load is not
exceeded in any operating condition. For this reason, the actual loads must be compared to the capacities of the coupling.
2Load produced by
engine rated torque
Taking the ambient
temperature into
consideration, the
rated torque TKN of
the coupling must be
greater than or equal to the rated torque TNof the application
3Load produced by
torque shocks
The maximum
torque of the coupling
must equal to at least the
total of peak torque TS
and the rated torque TN
of the machine, taking
into account the shock
frequency Z and the
ambient temperature.
This applies if the rated torque TNof the machine is also
subject to shocks.
The peak torque TS can be calculated if the mass distribution,
shock direction and shock mode are known.
For drives with A. C.-motors and high masses on the load side
we recommend that you call KTR to assist you in calculating
the peak driving torque.
MA=M
L=
JL
JA+ JL
JA
JA+ JL
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 71
Misalignment
BoWex®size
Type junior plug-in coupling Type junior M
14 19 24 14 19 24
Maximum axial misalignment ⌬Ka [in] ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040
1500 rpm
Maximum parallel misalignment ⌬Kr [°] ± 0.040 ± 0.040 ± 0.040 ± 0.012 ± 0.012 ± 0.016
Maximum angular misalignment ⌬Kw[°] ± 0.040 ± 0.040 ± 0.035 ± 0.040 ± 0.040 ± 0.035
3000 rpm
Maximum parallel misalignment ⌬Kr [°] ± 0.040 ± 0.040 ± 0.040 ± 0.012 ± 0.012 ± 0.016
Maximum angular misalignment ⌬Kw[°] ± 0.028 ± 0.028 ± 0.024 ± 0.028 ± 0.028 ± 0.024
BoWex®– coupling hubs
Size
Dimensions
14
19
24
28
32
38
42
45
48
65 80 100 125
Thread G M5 M8 M10 M10 M12 M16
Distance t 0.24 0.39 0.59
0.79 0.79 1.18 1.57
Tightening torque TA[lb-in] 18 89 150 150 150 700
BoWex®junior – coupling hubs
Size
Dimensions 14 19 24
Thread G M5 M5 M5
Hub 1b - Distance t 0.24 0.24 0.24
Plug-in sleeve 2b - Distance t 0.31 0.39 0.39
Tightening torque TA[lb-in] 12 12 12
Misalignment
BoWex®size 14 19 24 28 32 38 42 48 65 80 100 125
Maximum axial misalignment ⌬Ka [in] ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040 ± 0.040
1500 rpm
Maximum parallel misalignment ⌬Kr [°] ± 0.012 ± 0.012 ± 0.014 ± 0.014 ± 0.014 ± 0.016 ± 0.016 ± 0.016 ± 0.018 ± 0.018 ± 0.018 ± 0.018
Maximum angular misalignment ⌬Kw[°] ± 0.040 ± 0.040 ± 0.035 ± 0.035 ± 0.035 ± 0.035 ± 0.035 ± 0.035 ± 0.028 ± 0.028 ± 0.024 ± 0.016
3000 rpm
Maximum parallel misalignment ⌬Kr [°] ± 0.008 ± 0.008 ± 0.009 ± 0.009 ± 0.009 ± 0.010 ± 0.010 ± 0.010 ± 0.011 ± 0.011 ± 0.011 ± 0.011
Maximum angular misalignment ⌬Kw[°] ± 0.028 ± 0.028 ± 0.024 ± 0.024 ± 0.024 ± 0.024 ± 0.024 ± 0.024 ± 0.020 ± 0.016 ± 0.016 ± 0.012
BoWex®
Curved-tooth gear couplings
Misalignments and setscrew threads
Misalignments
BoWex®couplings are double-cardanic (2 flex-points). In addition to transmitting torque, they compensate for axial, parallel and angular
shaft misalignments. This prevents damage from the driving or driven machine.
Axial Misalignment Parallel misalignment Angular misalignment Parallel and angular misalignment
The assembled hubs must always be flush with the shaft ends. If it is difficult to determine the distance dimension “E”, reference may be made to the overall assembled length.
The shaft ends to be connected should be supported close to each coupling half.
1) The listed distance dimension “E” must be observed in every case, particularly for parallel and angular misalignments.
2) If the coupling hubs have been shortened or lengthened on the outside, the overall length of the coupling assembled will be reduced by the corresponding figure.
3) The allowable misalignment figures depend on speed and performance.
Prior to operation of the BoWex®coupling please make sure that the coupling sleeves are capable of axial movement.
The customer must provide guards in order to ensure that rotating parts cannot cause injury (Safety of Machines, DIN EN 292 part 2).
Setscrew dimensions (BoWex®coupling hubs with straight bores.)
Position of the thread
for setscrews
BoWex®M-14 to M-24
opposite the keyway
BoWex®M-28 to I-125
on the keyway
Position of the thread
for BoWex®
Junior plug-in coupling
and junior M-coupling
1) Hub length 2.16” t = 0.59”, 2.75” t =0.79“
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75
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
BoWex®
Curved-tooth gear couplings
BoWex®part numbers
Part Number Pages to follow
Notes:
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 73
BoWex®
Curved-tooth gear couplings
76
BoWex Sleeves - Part numbers by product size and material
Type Material 14 19 24 28 32
MPA 010141000000 010191000000 010241000000 010281000000 010321000000
M…C carbon fiber reinforced PA 010141000005 010191000005 010241000005 010281000005 010321000005
AS PA 010241000020 010281000020 010321000020
Spec - I PA 010241000030 010281000030 010321000030
Inch bores machined to AGMA Class 1
All hubs supplied standard with one setscrew
Non standard bores available. Consult KTR Engineering
BoWex Hubs - Part numbers by product size and standard material
Inch Sizes
Bore Keyway
14 19 24 28 32
Sintered Steel
5/16 No Key BA010142070711
3/8 No Key BA010142070911
3/8 3/32 BA010142070902
3/8 1/8 BA010142070903
7/16 No Key BA010142071111 BA010192071111 BA010242071111
7/16 3/32 BA010142071101 BA010192071101 BA010242071101
7/16 1/8 BA010142071102 BA010192071102 BA010242071102
1/2 No Key BA010142071211 BA010192071211 BA010242071211
1/2 1/8 BA010142071200 BA010192071200 BA010242071200 BA010282071200
9/16 No Key BA010142071411 BA010192071411 BA010242071411 BA010282071411
9/16 1/8 BA010142071400 BA010192071400 BA010242071400 BA010282071400
5/8 No Key BA010192071511 BA010242071511 BA010282071511
5/8 3/32 BA010192071501 BA010242071501 BA010282071501
5/8 5/32 BA010192071503 BA010242071503 BA010282071503
5/8 3/16 BA010192071500 BA010242071500 BA010282071500 BA010322071500
11/16 3/16 BA010192071700 BA010242071700 BA010282071700 BA010322071700
3/4 No Key BA010192071911 BA010242071911 BA010282071911 BA010322071911
3/4 1/8 BA010192071901 BA010242071901 BA010282071901 BA010322071901
3/4 3/16 BA010192071900 BA010242071900 BA010282071900 BA010322071900
13/16 3/16 BA010242072000 BA010282072000 BA010322072000
7/8 No Key BA010242072211 BA010282072211 BA010322072211
7/8 3/16 BA010242072200 BA010282072200 BA010322072200
7/8 1/4 BA010242072202 BA010282072202 BA010322072202
15/16 1/4 BA010242072300 BA010282072300 BA010322072300
1 1/4 BA010282072500 BA010322072500
1 3/16 BA010282072502 BA010322072502
1 1/16 1/4 BA010282072600 BA010322072600
1 1/8 1/4 BA010282072800 BA010322072800
1 3/16 1/4 BA010322073000
1 1/4 1/4 BA010322073100
1 1/4 5/16 BA010322073102
BoWex®Part Numbers
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77
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
BoWex®
Curved-tooth gear couplings
BoWex®Part Numbers
Metric bores machined to H7
BoWex Hubs - Part numbers by product size and standard material
Metric
Bore Key
14 19 24 28 32
Sintered Steel
8 2 BA010142000800
9 3 BA010142000900
10 3 BA010142001000 BA010192001000 BA010242001000
11 4 BA010142001100 BA010192001100 BA010242001100
12 4 BA010142001200 BA010192001200 BA010242001200
14 5 BA010142001400 BA010192001400 BA010242001400 BA010282001400
15 5 BA010142001500 BA010192001500 BA010242001500 BA010282001500
16 5 BA010192001600 BA010242001600 BA010282001600
18 6 BA010192001800 BA010242001800 BA010282001800 BA010322001800
19 6 BA010192001900 BA010242001900 BA010282001900 BA010322001900
20 6 BA010192002000 BA010242002000 BA010282002000 BA010322002000
22 6 BA010242002200 BA010282002200 BA010322002200
24 8 BA010242002400 BA010282002400 BA010322002400
25 8 BA010282002500 BA010322002500
28 8 BA010282002800 BA010322002800
30 8 BA010322003000
32 10 BA010322003200
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 75
78
BoWex
®
Part Numbers
BoWex Sleeves - Part numbers by product size and material
Type Material38 42 45 48 65 80
M / I PA 010381000000 010421000000 010481000000 010651000000 010801000015
M…C
carbon fiber reinforced PA
010381000005 010421000005 010481000005 010651000005
AS PA 010451000020 010651000020 010801000020
Spec - I PA 010451000030 010651000030 010801000030
BoWex Hubs - Part numbers by product size and standard material
Inch Sizes
Bore Keyway
38 42 48 65 80
Sintered Steel Steel
3/4 No Key BA010382071911
3/4 1/8 BA010382071901
3/4 3/16 BA010382071900 BA010422061903
13/16 3/16 BA010382072000 BA010422062004
7/8 No Key BA010382072211 BA010422062210
7/8 3/16 BA010382072200 BA010422062202 BA010482072200
7/8 1/4 BA010382072202 BA010422062203 BA010482072202
15/16 1/4 BA010382072300 BA010422062301 BA010482072300
1 1/4 BA010382072500 BA010422062502 BA010482072500 BA010652072500
1 1/16 1/4 BA010382072600 BA010422062602 BA010482072600 BA010652072600
1 1/8 1/4 BA010382072800 BA010422062802 BA010482072800 BA010652072800
1 3/16 1/4 BA010382073000 BA010422063002 BA010482073000 BA010652073000
1 1/4 1/4 BA010382073100 BA010422063102 BA010482073100 BA010652073100
1 1/4 5/16 BA010382073102 BA010422063103 BA010482073102 BA010652073102
1 5/16 5/16 BA010382073300 BA010422063302 BA010482073300 BA010652073300
1 3/8 5/16 BA010382073400 BA010422063402 BA010482073400 BA010652073400
1 3/8 3/8 BA010382073401 BA010422063403 BA010482073401 BA010652073401
1 7/16 3/8 BA010382073600 BA010422063602 BA010482073600 BA010652073600
1 1/2 5/16 BA010422063803 BA010482073802 BA010652073802
1 1/2 3/8 BA010422063802 BA010482073800 BA010652073800
1 9/16 3/8 BA010422063902 BA010482073900 BA010652073900
1 5/8 3/8 BA010422064102 BA010482074100 BA010652074100
1 11/16 3/8 BA010482074200 BA010652074200
1 3/4 3/8 BA010482074400 BA010652074400
1 3/4 7/16 BA010482074402 BA010652074402
1 13/16 1/2 BA010482074600 BA010652074600
1 7/8 1/2 BA010482074700 BA010652074700
1 15/16 1/2 BA010652074900
2 1/2 BA010652075000 BA010805075000
2 1/16 1/2 BA010652075200 BA010805075200
2 1/8 1/2 BA010652075300 BA010805075300
2 3/16 1/2 BA010652075500 BA010805075500
2 1/4 1/2 BA010652075700 BA010805075700
2 3/8 5/8 BA010652076000 BA010805076000
2 5/8 5/8 BA010805076600
2 7/8 3/4 BA010805077300
2 15/16 3/4 BA010805077400
3 3/4 BA010805077600
3 1/16 3/4 BA010805077700
3 1/8 3/4 BA010805077900
All hubs supplied standard with one setscrew
Non standard bores available. Consult KTR Engineering
Inch bores machined to AGMA Class 1
BoWex®
Curved-tooth gear couplings
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79
BoWex®
BoWex®- FLE-PA
BoWex - ELASTIC®
MONOLASTIC®
BoWex Hubs - Part numbers by product size and standard material
Metric
BoreKey
38 42 48 65 80
Sintered Steel Steel
18 6BA010382001800
19 6BA010382001900
20 6BA010382002000 BA010422062001
22 6BA010382002200 BA010422062201
24 8BA010382002400 BA010422062401
25 8BA010382002500 BA010422062501 BA010482002500
28 8BA010382002800 BA010422062801 BA010482002800
30 8BA010382003000 BA010422063001 BA010482003000 BA010652003000
32 10 BA010382003200 BA010422063201 BA010482003200 BA010652003200
35 10 BA010382003500 BA010422063501 BA010482003500 BA010652003500
38 10 BA010382003800 BA010422063801 BA010482003800 BA010652003800
40 12 BA010422064001 BA010482004000 BA010652004000
42 12 BA010422064201 BA010482004200 BA010652004200
45 14 BA010482004500 BA010652004500
48 14 BA010482004800 BA010652004800
50 14 BA010652005000
55 16 BA010652005500 BA010805005500
60 18 BA010652006000 BA010805006000
65 18 BA010652006500 BA010805006500
70 20 BA010805007000
75 20 BA010805007500
All hubs supplied standard with one setscrew
Non standard bores available. Consult KTR Engineering
BoWex
®
Part Numbers
Metric bores machined to H7
BoWex®
Curved-tooth gear couplings
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80
BoWex®junior 19 d1Ø 19 d2Ø 14
BoWex®junior plug-in coupling (2 parts) and BoWex®junior M (3 parts)
Size
Torque
TK
[lb-in]
Available bore Dimensions [in]
Max.
speed
[rpm]
Hub
part 1b
d1
D1
Plug-in-sleeve
part 2b
d2
D2DHl1, l2E1L1LH1 M1F G E LL
HM, N
TKN TKmax.
14
M-14 44 89
0.236, 0.276,
0.315, 0.354 0.87 0.315 0.87
1.57 0.91 0.08 1.89 1.57 0.31 0.73 0.85 0.16 1.97 1.46 0.26 6,000
0.394, 0.433 0.98 0.394, 0.433 0.98
0.472, 0.551 1.02 0.472, 0.551 1.02
19
M-19 71 142
0.472, 0.551 1.06 0.551, 0.591 1.14 1.85 0.98 0.08 2.05 1.65 0.39 0.75 0.91 0.16 2.13 1.46 0.33 6,0000.630 1.18
0.748 1.26 0.748 1.38
24
M-24 106 212
0.394, 0.433,
0.472 1.02
0.551, 0.630 1.26
2.09 1.02 0.08 2.13 1.77 0.35 0.85 0.93 0.16 2.20 1.61 0.30 6,000
0.551, 0.591,
0.630 1.26
0.709, 0.748,
0.787 1.42 0.748, 0.787 1.42
0.945 1.50 0.945 1.57
1b 2b 1b 2 1b
Inch bores machined to AGMA Class 1, Metric bores machined to H7
BoWex®
Curved-tooth gear couplings
All nylon junior plug-in coupling and junior M design
Components
Bore
Coupling size 2-parted design or
BoWex®junior M-19 3-parted type Bore
●Non-failsafe, reduced maintenance, blind assembly
●Corrosion resistant all polyamide construction
●Torsionally stiff
●Low inertia
●Compact design for short shaft gaps
●Installation instructions available at www.ktr.com
Design junior plug-in coupling (2 piece) Design junior M coupling (3 piece)
Order form:
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 78
3
81
BoWex®
BoWex®- FLE-PA
BoWex - ELASTIC®
MONOLASTIC®
Inch bores machined to AGMA Class 1, Metric bores machined to H7
BoWex®
Curved-tooth gear couplings
BoWex®M-28 d1Ø 20 d2Ø 28
BoWex®design M, design I and design M...C
Weight
with max. bore-Ø
Massmoment of inertia
J with max. bore-Ø
Pilot
bored max. l1, l2E LL
HM, N l3DD
H
M-14 M-14C -0.563 0.91 0.16 1.97 1.46 0.26 0.39 0.98 1.57 1.30 1.57 0.07 0.15 0.22 0.0001 0.0001 0.0002
M-19 M-19C -0.813 0.98 0.16 2.13 1.46 0.33 0.39 1.26 1.85 1.54 1.57 0.07 0.22 0.51 0.0001 0.0001 0.0004
M-24 M-24C -0.938 1.02 0.16 2.20 1.61 0.30 0.55 1.42 2.09 1.77 1.97 0.09 0.31 0.71 0.0002 0.0003 0.0008
M-28 M-28C -1.125 1.57 0.16 3.31 1.81 0.75 0.51 1.73 2.56 2.13 2.17 0.18 0.73 1.63 0.0006 0.0011 0.0027
M-32 M-32C -1.250 1.57 0.16 3.31 1.89 0.71 0.51 1.97 2.95 2.48 2.17 0.20 0.95 2.09 0.0010 0.0019 0.0049
M-38 M-38C -1.438 1.57 0.16 3.31 1.89 0.71 0.51 2.28 3.27 2.72 2.36 0.29 1.21 2.71 0.0014 0.0031 0.0077
M-42 -1.563 1.65 0.16 3.46 1.97 0.75 0.51 2.56 3.62 3.07 2.36 0.31 1.50 3.31 0.0021 0.0053 0.0126
M-48 M-48C -1.813 1.97 0.16 4.09 1.97 1.06 0.51 2.68 3.74 3.07 2.36 0.51 1.74 3.99 0.0035 0.0064 0.0162
M-65 M-65C 1.024 2.500 2.17 0.16 4.49 2.68 0.91 0.63 3.78 5.20 4.33 2.76 1.21 4.19 9.59 0.0188 0.0281 0.0751
I-80 1.220 3.000 3.54 0.24 7.32 3.66 1.83 0.79 4.88 6.89 5.71 - 2.49 11.47 25.42 0.0610 0.1335 0.3279
I-100 1.496 3.875 4.33 0.31 8.98 4.02 2.48 0.87 5.98 8.27 6.93 - 3.92 20.66 45.25 0.1404 0.3552 0.8508
I-125 1.772 4.813 5.51 0.39 11.42 5.28 3.07 1.18 7.56 10.63 8.86 - 8.56 42.87 94.29 0.4982 1.2058 2.9098
2 11 12 1 1 8 2a 1
2 Ex
Size
Bore
d1, d2
Tip
circle
ØDZ
of hub
Leng-
thened
l1, l2
max.
Sleeve
[lb]
Hub
[lb]
Total
[lb]
Sleeve
[lb-in-
sec2]
Hub
[ lb-in-
sec2]
Total
[ lb-in-sec2]
Dimensions [in]
Design M, design I and design M...C
Components
BoreSize and design of coupling Bore
Order form:
●Non-failsafe, reduced maintenance, blind assembly
●Torsionally stiff
●Suitable for general drive applications
●Compact design for short shaft gaps
●Design MC with carbon fiber reinforced PA sleeve,
low backlash, and higher torques. ATEX approved according
to EC Standard 94/9/EC (Explosion Certificate ATEX 95)
●Installation instructions available at www.ktr.com
Design M Design M...C Design I
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 79
82
BoWex®32 AS d1Ø 32 d2Ø 32
max. l1, l2E LL
HM, N DD
H
24 x-0.938 1.02 0.16 2.20 2.01 0.10 1.42 2.28 1.97 0.24 0.31 0.86 0.00034 0.00032 0.00097
28 x-1.125 1.57 0.16 3.31 2.20 0.55 1.73 2.76 2.17 0.35 0.73 1.81 0.00136 0.00108 0.00352
32 x-1.250 1.57 0.16 3.31 2.28 0.51 1.97 3.31 2.17 0.46 0.95 2.36 0.00243 0.00192 0.00628
45 x-1.688 1.65 0.16 3.46 2.36 0.55 2.56 3.94 2.36 0.60 1.39 3.37 0.00486 0.00501 0.01488
65 x 1.024 2.500 2.17 0.16 4.49 3.31 0.59 3.78 5.51 2.76 1.85 4.63 11.03 0.02640 0.03891 0.10426
80 - 1.220 3.000 3.54 0.24 7.32 3.66 1.83 4.88 6.89 - 2.87 11.47 25.80 0.07364 0.13347 0.34059
100 - 1.496 3.875 4.33 0.31 8.98 4.02 2.48 5.98 8.27 - 4.52 20.73 45.86 0.16321 0.35519 0.87359
125 - 1.772 4.813 5.51 0.39 11.42 5.28 3.07 7.56 10.63 - 9.53 42.87 95.04 0.54876 1.20577 2.96031
1 9 910 10 101 12c 2d9 18
Inch bores machined to AGMA Class 1, Metric bores machined to H7
BoWex®
Curved-tooth gear couplings
Design AS and design Spec.-I
Bore
Size and design of coupling
AS or Spec.-I Bore
Order form:
●Non-failsafe, reduced maintenance, blind assembly
●Torsionally stiff
●Compact design for short shaft gaps
●Design AS – Axially movable sleeve when assembled
●Design Spec-I – Sleeve retained for vertical applications
●Installation instructions available at www.ktr.com
Design AS Design Spec. - I
Components
BoWex®design AS and design Spez.-I
Size
Bore Bore
d1, d2
Un-
bored
Pilot
bored
Leng-
thened
l1, l2
max.
Sleeve
[lb]
Hub
[lb]
Total
[lb]
Sleeve
[ lb-in-
sec2]
Hub
[ lb-in-
sec2]
Total
[ lb-in-sec2]
Dimensions [in] Weight
with max. bore-Ø
Massmoment of inertia
J with max. bore-Ø
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 80
3
83
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
BoWex®
Curved-tooth gear couplings
BoWex®45 SG d1Ø 22 d2Ø 40
1c 1c
16 151615 2e
111d
12
1d 2e
1e9 81012d
min. max. l1, l2E L LHM, N D DH
24 SG x - 0.438 0.938 1.42 0.16 2.99 2.01 0.49 1.42 2.28 1.97
28 SG x-0.438 1.125 1.57 0.16 3.31 2.20 0.55 1.73 2.76 2.17
32 SG x - 0.500 1.250 1.57 0.16 3.31 2.28 0.51 1.97 3.31 2.17
45 SG x-0.813 1.688 1.65 0.16 3.46 2.36 0.55 2.56 3.94 2.36
65 SG x 1.024 1.188 2.500 2.76 0.16 5.67 3.31 1.18 3.78 5.51 -
80 SG - 1.220 1.438 3.000 3.54 0.24 7.32 3.66 1.83 4.80 6.89 -
100 SG - 1.496 1.625 3.875 4.33 0.31 8.98 4.02 2.48 5.91 8.27 -
125 SG - 1.772 2.000 4.813 5.51 0.39 11.42 5.28 3.07 7.48 10.63 -
min. max. l1, l2E L LHM, N D DH
Leng-
thened
l1, l2
max.
24 SSR x-0.438 0.875 1.02 0.16 2.20 2.01 0.10 1.38 2.28 1.97
28 SSR x-0.438 1.000 1.57 0.16 3.31 2.20 0.55 1.65 2.76 2.17
32 SSR x-0.500 1.188 1.57 0.16 3.31 2.28 0.51 1.89 3.31 2.17
45 SSR x-0.813 1.563 1.65 0.16 3.46 2.36 0.55 2.48 3.94 2.36
65 SSR x 1.024 1.188 2.500 2.17 0.16 4.49 3.31 0.59 3.74 5.51 2.76
80 SSR - 1.220 1.438 3.000 3.54 0.24 7.32 3.66 1.83 4.72 6.89 -
100 SSR - 1.496 1.625 3.875 4.33 0.31 8.98 4.02 2.48 5.91 8.27 -
125 SSR - 1.772 2.000 4.813 5.51 0.39 11.42 5.28 3.07 7.48 10.63 -
min. max. LL
1LHEE
1l2l1DHDMN
24 CD x - 0.438 0.938 2.76 2.89 2.01 0.16 0.30 1.02 1.57 2.28 1.42 0.79 0.10
28 CD x-0.438 1.125 3.72 3.86 2.20 0.16 0.33 1.57 1.99 2.76 1.73 1.10 0.55
32 CD x - 0.500 1.250 3.72 - 2.28 0.16 0.33 1.57 1.99 3.31 1.97 1.06 0.51
45 CD x-0.813 1.688 4.00 - 2.36 0.16 0.33 1.65 2.19 3.94 2.56 1.26 0.55
65 CD - 1.024 1.188 2.500 4.84 - 3.31 0.16 0.39 2.17 2.52 5.51 3.78 1.12 0.59
80 CD - 1.220 1.438 3.000 7.05 - 3.66 0.24 0.51 3.54 3.27 6.89 4.88 1.73 1.83
BoWex®design SG
BoWex®design SSR
BoWex®design Spec.-I/CD
Size
Size
Thread for setscrews only for finish bored hubs.
Please order dimension sheet of type Spec.-I/CDB with shear pins.
Pilot bore
Pilot bore
Un-
bored
Un-
bored
Pilot
bored
Pilot
bored
Leng-
thened
l1, l2
max.
Bore
Bore
Dimensions [in]
Dimensions [in]
Size
Pilot bore
Un-
bored
Pilot
bored
Bore Dimensions [in]
Design SG with dust protection retaining rings
Design SSR with supporting retaining rings
Design Spec.-I/CD
Design SG, design SSR and design Spec.-I/CD
driven side drive side
Bore
Size and design of coupling
SG, SSR or Spec.-I/CD Bore
Order form:
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 81
BoWex®
Curved-tooth gear couplings
84
BoWex®32 SD d1Ø 32 d2Ø 32
BoWex®design SD
Size
Pilot
bore
Bore
d1, d2
Dimensions [in]
Mass moment of
inertia J with
max. bore-Ø Shifting
force
[lbf]
Un-
bored
Pilot
bored
d1
max.
d2
max. El
1l2LL
Hl3M W N DD
HDA
Shifting
hub with
sleeve
[lb]
Driving
hub
[lb]
Shifting
hub with
sleeve
[lb-in-sec2]
Driving
hub
[lb-in-sec2]
24 SD x-0.938 0.938 0.16 1.02 1.97 3.15 2.05 1.22 0.39 0.75 0.71 1.42 2.28 3.07 2.38 0.31 0.0073 0.0003 32
28 SD x-1.125 1.125 0.16 1.57 2.17 3.90 2.24 1.30 0.85 0.85 0.81 1.73 2.76 3.46 3.31 0.73 0.0138 0.0011 41
32 SD x-1.250 1.250 0.16 1.57 2.17 3.90 2.28 1.30 0.81 0.85 0.81 1.97 3.31 3.94 4.08 0.95 0.0202 0.0019 41
45 SD x-
1.688 1.688 0.16 1.65 2.36 4.17 2.48 1.46 0.85 0.89 0.85 2.56 3.94 4.92 5.64 1.50 0.0408 0.0050 56
1.813 1.97 4.49 1.16 1.74
65 SD x 1.024 2.500 2.500 0.16 2.17 2.76 5.08 3.03 1.46 1.10 0.98 0.94 3.74 5.51 6.14 11.18 5.07 0.1407 0.0389 79
80 SD - 1.220 3.000 3.000 0.24 3.54 3.54 7.32 3.78 1.85 2.20 1.38 1.34 4.88 6.89 7.68 23.37 11.47 0.4635 0.1335 79
100 SD - 1.496 3.875 3.875 0.31 4.33 4.33 8.98 4.45 2.17 2.83 1.69 1.69 5.98 8.27 9.25 41.61 20.66 1.1949 0.3552 90
125 SD - 1.772 4.813 4.813 0.39 5.51 5.51 11.42 5.87 2.76 3.50 2.05 2.05 7.56 10.63 11.73 89.08 20.82 4.3538 1.2058 101
L1L2z x G s
24 SD 1.89 2.28 4xM6 0.08
28 SD 1.89 2.28 4xM6 0.08
32 SD 2.52 2.95 4xM6 0.08
45 SD 2.95 3.54 4xM8 0.08
65 SD 3.94 4.49 4xM8 0.08
80 SD 5.12 5.71 4xM8 0.12
100 SD 7. 0 9 7.7 2 6xM10 0.16
125 SD 8.66 9.29 6xM10 0.16
172f1 1h
Inch bores machined to AGMA Class 1, Metric bores machined to H7
drive side driven side
z = number
engaged
disengaged
●Non-failsafe, reduced maintenance, blind assembly
●Torsionally stiff
●Shiftable coupling for all applications in general industry
●Easy to engage and disengage drive and driven at standstill
●Spring and ball detent locking mechanism
●Installation instructions available at www.ktr.com
Design SD
BoreSize and design of coupling Bore
Order form:
Components
Connection dimensions of BoWex®SD shifting ring (part 17) for mounting of: slip ring SD1 (s catalog page 85), shifting disc etc.
Size Dimensions [in]
Weight
with max. bore-Ø
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 82
3
85
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
BoWex®
Curved-tooth gear couplings
BoWex®65 SD1 d1Ø 32 d2Ø 32 4.4 3
Shifting
force
[lbf]
d1
max.
d2
max. El
1l2LL
Gl4l5M W t DD
HDAD1
D2±0,004
(keyway) D5
n±0,004
(keyway)
24 SD1 0.938 0.938 0.16 1.02 1.97 3.15 2.64 0.43 1.81 0.39 0.75 0.63 1.42 2.28 3.07 1.77 2.78 3.07 0.49 32
28 SD1 1.125 1.125 0.16 1.57 2.17 3.90 2.83 0.43 1.89 0.85 0.85 0.63 1.73 2.76 3.46 1.77 2.78 3.07 0.49 41
32 SD1 1.250 1.250 0.16 1.57 2.17 3.90 3.07 0.53 2.09 0.81 0.85 0.83 1.97 3.31 3.94 2.36 3.52 3.94 0.69 41
45 SD1 1.688 1.688 0.16 1.65 2.36 4.17 3.31 0.55 2.28 0.85 0.89 0.87 2.56 3.94 4.92 2.76 4.43 4.92 0.71 56
1.813 1.97 4.49 1.16
65 SD1 2.500 2.500 0.16 2.17 2.76 5.08 4.06 0.63 2.40 1.02 0.98 0.98 3.78 5.51 6.14 3.78 5.14 5.71 0.81 79
80 SD1 3.000 3.000 0.24 3.54 3.54 7.32 4.88 0.73 2.95 2.20 1.38 1.14 4.88 6.89 7.68 4.92 6.48 7.17 1.00 79
100 SD1 3.875 3.875 0.31 4.33 4.33 8.98 5.98 1.10 3.70 2.83 1.69 1.54 5.98 8.27 9.25 6.85 8.29 9.06 1.20 90
125 SD1 4.813 4.813 0.39 5.51 5.51 11.42 7.60 1.20 4.49 3.50 2.05 1.73 7.56 10.63 11.73 8.43 9.86 10.83 1.40 101
abcdd
3d4eFg
1L2L3mm1
min.
m1
max. A Bm
3m4m5
24 SD1 1 1.1 4.33 1.38 0.71 0.79 0.43 0.63 1.18 2.76 2.17 12.60 15.75 2.95 7.09 7.48 3.54 4.49
0.79
2.17 0.63
28 SD1 1
32 SD1 2 2.2
5.51 2.36
0.98
0.98
0.53
0.79 1.57
3.84 2.36 16.93 17.72
3.94
9.45 10.63 4.37 5.94 3.15 1.34
45 SD1 3 3.3 1.18 4.72 2.76 19.29 23.62 11.02 12.20 5.51 7.09 3.54 1.73
65 SD1 3 4.4 6.69 8.27
80 SD1 4 5.5
6.30 2.36
1.38
1.18
1.97 5.81 22.24 29.53
4.72
12.64 14.37 7.87 9.61
1.18
3.94 2.13
100 SD1 5 6.6 1.57 1.97 7.48 3.15 24.80 42.05 14.37 16.14 9.84 11.81 4.33 2.44
125 SD1 5 7.7 - 11.81 13.78
drive side driven side
engageddisengaged
Design SD1
●Non-failsafe, reduced maintenance, blind assembly
●Torsionally stiff
●Shiftable coupling for all applications in general industry
●Easy to engage and disengage drive and driven at standstill
●Optional shiftable linkage kit available to ease installation
●Spring and ball detent locking mechanism
●Installation instructions available at www.ktr.com
1) = For a one-piece base plates dimension "e" has to be increased by at least 0.40 in by shims or other suitable means.
Slip ring
size
Shiftable linkage
size
Size and design
of coupling Bore
Order form:
BoWex®design SD1 and slip ring
Size
Bore Dimensions [in]
BoWex®SD1 – shiftable linkage
Size
Shiftable
linkage
size
Slip ring
size
Dimensions [in] Dimensions
with m1max.
Inch bores machined to AGMA Class 1, Metric bores machined to H7
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 83
86
BoWex®M-24 V4A d1Ø 20 d2Ø 24
BoWex®junior plug-in coupling (2 parts) and BoWex®junior M (3 parts)
Available bore Dimensions [in]
Hub
part 1b
d1
D1
Plug-in-sleeve
part 2b
d2
D1DHl1, l2E1EL
H1 LHL1LM
1M, N
14
M-14
0.236, 0.276, 0.315, 0.354 0.87 0.315 0.87
1.57 0.91 0.08 0.16 1.57 1.46 1.89 1.97 0.31 0.260.394, 0.433 0.98 0.394, 0.433 0.98
0.472, 0.551 1.02 0.472, 0.551 1.02
19
M-19
0.472, 0.551 1.06 0.551, 0.591 1.14 1.89 0.98 0.08 0.16 1.65 1.46 2.05 2.13 0.39 0.330.630 1.18
0.748 1.26 0.748 1.38
24
M-24
0.394, 0.433, 0.472 1.02 0.551, 0.630 1.26
2.09 1.02 0.08 0.16 1.77 1.61 2.13 2.20 0.35 0.30
0.551, 0.591, 0.630 1.26
0.709, 0.748, 0.787 1.42 0.748, 0.787 1.42
0.945 1.50 0.945 1.57
Size Bore
d1max., d2max.
Dimensions [in]
DHDl
1, l2EL
HL M, N
M-24 0.938 2.09 1.42 1.02 0.16 1.61 2.20 0.30
M-38 1.438 3.27 2.28 1.57 0.16 1.89 3.31 0.71
M-48 1.813 3.74 2.68 1.97 0.16 1.97 4.09 1.06
2 111b 2b 1b 2 1b
Made from corrosion-proof material
BoreSize and design of coupling Bore
Order form:
Components
●Non-failsafe, reduced maintenance, blind assembly
●Torsionally stiff
●Corrosion resistant all polyamide or stainless steel construc-
tion
●Suitable for general drive applications
●Compact design for short shaft gaps
●Installation instructions available at www.ktr.com
Additional sizes on request.
Applications:
Food processing industry, print and paper, textile industry, sewage technology, mobile washers, chemical, pharmaceutical industry and aggressive environments (air,
water, chemicals etc.).
Size
BoWex®design M
Design junior plug-in coupling Design junior M coupling Design M
Inch bores machined to AGMA Class 1, Metric bores machined to H7
BoWex®Curved Tooth Gear couplings
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 84
3
87
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
BoWex®- FLE-PA-Flange couplings
for I.C.-engines
BoWex®FLE-PA
BoWex-ELASTIC®
MONOLASTIC®
Operating description
General description:
BoWex®FLE-PA – couplings are designed to transmit torque on flywheel driven applications via
a curved tooth hub and nylon engine flange. The combination of these components provides a
torsionally stiff connection for low driven inertias. This product is available in materials and ele-
ments that are optimized for close coupled applications.
Function and Design
BoWex®FLE-PA - couplings, intended for flywheel driven applications, are constructed from ma-
terials designed to provide a torsionally stiff solution while optimizing the balance between cou-
pling performance and ease of assembly. The double-crowned tooth reduces edge loading
while accommodating misalignments and transmitting torque. The compact two-piece coupling
design enables the hub to be securely fastened to the driven shaft eliminating the need for lubri-
cation, reducing fretting and corrosion, while allowing for minimal maintenance in an engine drive
coupling.
The two-piece design of the BoWex®FLE-PA allows the nylon flange to provide high stiffness,
low inertia, corrosion resistance, and allows for blind assembly. Nylon flanges are available from
stock in standard SAE, metric and engine specific configurations.
BoWex®FLE-PA is available in a variety of standard mounting options to accommodate
flywheels up to SAE 18” and a maximum of 1,075 HP nominal, while still accommodating blind
assembly. They are suitable for low inertia drives typically found in hydrostatic applications.
General description:
BoWex-ELASTIC®– couplings are designed to transmit torque on flywheel driven applications
via a curved tooth hub and elastomeric engine flange. The combination of these components
provides a highly flexible connection for large driven inertias. The torsionally flexible connection
modifies the torsional profile of the system, moving critical resonance out of the operating range.
Function and Design
BoWex-ELASTIC®- couplings are intended for engine driven high inertia applications. Con-
structed from natural rubber, the coupling design provides a highly flexible solution while optimi-
zing the balance between coupling performance and ease of assembly. The two-piece coupling
design enables the hub to be securely fastened to the driven shaft, eliminating the need for lubri-
cation, reducing fretting and corrosion, while allowing for minimal maintenance in an engine drive
coupling.
BoWex-ELASTIC®elements are available in several hardnesses. When the proper hardness is
selected, maximum benefit can be achieved between dampening and torque transmission, insu-
ring proper torsional profile for your application. Elastic elements are available in standard SAE
and metric sizes.
BoWex-ELASTIC®is available in a variety of standard mounting options to accommodate
flywheels up to SAE 18” and a maximum of 1,500 HP nominal. They are suitable for high inertia
drives typically found in compressors, pumps and generators.
General description:
MONOLASTIC®– couplings are designed to transmit torque on flywheel driven applications via
a one-piece design. This design features a plug-in assembly that provides considerable system
dampening for low driven inertias. This product is available in SAE and Metric flywheel
configurations.
Function and Design
MONOLASTIC®- couplings are constructed from materials designed to provide a torsionally
flexible solution in an easy to assemble one-piece design. The rubber element allows for
misalignment and some dampening while reducing restoring forces on driven components.
The flexible one-piece design enables a compact assembly while reducing the likelihood of
fretting and premature wear of the spline connection.
MONOLASTIC®is available in a variety of standard mounting options to accommodate
flywheels up to SAE 11.5” and a maximum of 185 HP nominal in a plug-in design. They are also
available in metric, and engine specific configurations. They are suitable for low inertia drives
typically found in hydrostatic applications.
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 85
1.4 Load by vibratory torque
shocks
The allowable vibratory
torque TKW of the coupling,
at the operating speed
and ambient temperature,
must not be exceeded by
the largest periodical
vibratory torque TW.
With operating frequencies f > 10 Hz, the heat produced by
damping in the elastomer is considered as damping power PW.
The permissible damping power PKW of the coupling depends
on the ambient temperature and must not be exceeded by the ac-
tual damping power produced.
88
< 10 > 10
< 60
> 60
< 120 > 120
SZ1.0 1.5 2.0
MA=M
L=
JL
JA+ JL
JA
JA+ JL
- 40 °F
+ 140 °F + 158 °F + 176 °F
St1.0 1.2 1.6
1.5
SA/SL1.8
2.5
TKN ⱖTN· St
TN[lb-in] = 63,025 · PAN/HP
n [rpm]
TKW ⱖTW· St
PKW ⱖPW
MONOLASTIC®
One-piece, flexible flywheel couplings
Coupling selection
Table No. 1 Table No. 2 Table No. 3
Starting factor SZ
Starting
frequency/h
on
request
Driving side shock
TS= TAS · MA· SA
Load side shock
TS= TLS · ML· SL
TK max ⱖTS· SZ· St
TK max ⱖTS· SZ· St
Temperature factor StShock factor SA/SL
Moderate shocks
Average shocks
Heavy shocks
1.1 Load by rated torque
The allowable rated
torque TKN of the
coupling must, at
operating temperature,
be at least as high as the
rated torque TNof the machine.
1.3 Passing through
critical resonance
The peak torque TSarising when the resonance range is encoun-
tered must not exceed the maximum torque TKmax of the cou-
pling while taking temperature into account.
1. BoWex-ELASTIC®couplings should be selected in accordance with DIN 740 part 2. The coupling must be sized to ensure that the maximum
allowable coupling torque is not exceeded during operation. It is therefore necessary to compare the actual loads with the rated parameters
of the coupling according to tables 1.1 - 1.4 listed below.
For drives subject to torsional resonance it is necessary to review the drive by means of a torsional vibration calculation to ensure
proper operation.
1.2 Load by torque shocks
The maximum permissible
torque of the coupling
must, at operating
temperature, be as high
as the operational peak
torque TS, taking into
account the shock
factor SZ.
With values of mass
distribution, direction and
amplitude of shock, it is possible to calculate the peak torque TS.
If the moments of inertia are unknown, MAor ML= 1.
Description Symbol Definition or explanation
Rated torque
of coupling
TKN Torque that can continuously be transmitted over the
entire permissible speed range.
Maximum torque
of coupling
TK max. Torque that can be transmitted as dynamic load
ⱖ105times or 5 x 104as vibratory load, respectively,
during the entire operating life of the coupling.
Vibratory torque
of coupling
TKW Torque amplitude of the permissible periodical torque
fluctuation with a frequency of 10 Hz and a basic load
of TKN or dynamic load up to TKN, respectively.
Damping power
of coupling
PKW Permissible damping power with an ambient
temperature of + 86 °F.
Rated torque
of machine
TNStationary rated torque on the coupling
Peak torque
of machine
TSPeak torque on the coupling
Peak torque
on the driving side
TAS Peak torque with torque shock on the driving side,
e. g. breakdown torque of the electric motor.
Description Symbol Definition or explanation
Peak torque
of load side
TLS Peak torque with torque shock on load side, e. g.
braking.
Vibratory torque
of machine
TWAmplitude of the vibratory torque effective on the cou-
pling.
Damping power
of the machine
PWDamping power which is effective on the coupling
due to the load produced by the vibratory torque.
Moment of inertia
of driving side
Moment of inertia
of load side
JA
JL
Total of moments of inertia existing on the driving or
load side referring to the coupling speed.
Rotational inertia
coefficient of driving side
Rotational inertia
coefficient of load side
MA
ML
Factor taking into account the mass distribution with
shocks and vibrations produced on the driving or
load side.
MA=M
L=
JL
JA+ JL
JA
JA+ JL
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 86
3
TKN ⱖTAN · K
Applications - BoWex®FLE-PA, BoWex-ELASTIC®and MONOLASTIC®
Additional Information
Applications for
BoWex®FLE-PA couplings and MONOLASIC®
wheel loaders K 1.6
compact loaders K 1.6
hydraulic excavators K 1.4
mobile cranes K 1.6
graders K 1.5
vibratory rollers K 1.4
fork lift trucks K 1.6
concrete mixer trucks K 1.3
concrete pumps K 1.4
asphalt finishers K 1.4
concrete cutters K 1.4
Applications for
BoWex-ELASTIC®couplings
screw compressors
generators
piston compressors
splitter box
suction pumps
high-pressure pumps
reversing gears
sifting gears
hydrodynamic converters
For a selection according to the engine driving
torque TAN, a service factor K = 1.3 – 1.6 should
be used, depending on the application.
Coupling selection by means of
torsional vibration calculation.
Use of special
software
for coupling
selection
Application:
3-cylinder diesel engine -
screw compressor
Use:
BoWex-ELASTIC®
42 HE - 50 Shore A
Calculation:
Acceleration
from 300 rpm
to 2,700 rpm
KTR has 50 years of applica-
tion experience and uses
computer programs for cou-
pling solutions on torsionally
sensitive drive systems.
BoWex®- FLE-PA-Flange couplings
BoWex - ELASTIC®
MONOLASTIC®
89
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 87
90
MONOLASTIC®
One piece coupling
d DD
1D2zd
LD3l1l2l3l4l5
22 65 354 885 177 0.79 1.34 3.66 3.15 0.12 0.32 3.94 1.30 0.06 1.26 1.34 1.18
28 65 620 1,549 310 0.98 1.65 4.53 3.94 0.12 0.40 4.88 1.57 0.08 1.26 1.57 1.50
70 885 2,655 443
32 65 1,416 3,540 708 1.26 1.97 5.51 4.92 0.12 0.48 5.91 1.65 0.08 1.65 1.69 1.50
70 1,991 5,974 991
50-140 70 2,301 5,753 1,151 1.26 1.97 6.57 5.51 0.12 0.56 6.89 1.81 0.12 1.38 1.81 1.69
50-165 70 2,655 6,638 1,328 1.26 1.97 6.89 6.50 0.12 0.64 7.87 1.81 0.12 1.38 1.81 1.69
50-170 70 2,655 6,638 1,328 1.26 1.97 6.89 6.69 0.12 0.64 7.87 1.81 0.12 1.38 1.81 1.69
30 65 1,416 3,540 708 0.98 1.65 4.72 1.54 0.08 0.83 1.18 1.42
50 65 2,655 6,638 1,328 1.26 1.97 6.57 1.65 0.08 0.94 1.18 1.50
65 65 5,311 14,162 1,593 1.89 2.68 7.87 1.77 0.12 1.26 1.77 1.65
JAJL
22 65 5,310 34.1 0.024
1
1,142 0.0015 0.0009 6000
28 65 7,960 51.2 1,713 0.0048 0.0029 6000
70 11,500 0.020 2,284
32 65 15,930 85.3 0.024 0.0106 0.0072 6000
70 21,240 0.020 2,855
50-140 70 37,170 119 0.020 7,7 9 5 0.0186 0.0115 6000
50-165 70 49,560 136 0.020 8,852 0.0221 0.0115 6000
50-170 70 49,560 136 0.020 8,852 0.0115 6000
30 65 33,190 85.3 0.024 6,567 6.5” 0.0336 0.0027 6000
7.5” 0.0505
50 65 79,650 119 0.024 7,424 8” 0.0690 0.0106 6000
10” 0.1354
65 65 123,910 154 0.024 10,850 10” 0.2107 0.0336 6000
11.5” 0.3257
for I. C.-engines (EP 0853203/U.S. Patent 6,117,017)
TKN TK max. TKW
z = number
●One-piece flywheel flange coupling for low inertia applications
●Ideal for hydrostatic drives
●Provides dampening
●Reduced maintenance, blind assembly
●Accommodates for parallel and angular misalignments
Size
MONOLASTIC®
Torque
[lb-in]
Dimension
[in]
Elastomer
hardness
[Shore A]
Size 22, 28, 32, 50-140, 50-165, 50-170 Size 30, 50, 65
SAE-connection 6 ½”, 7 ½”, 8”, 10”
SAE-connection 6 ½”, 7 ½”
SAE-connection 10”, 11 ½”
z = number
Max.
allowable
operating speed
nmax
[rpm]
Size
Cdyn.
140°F
[lb-in/rad]
Perm.
damping power
with 140°F
PKW [Btu/hr]
Allowable
radial
misalignment
with 2,200 rpm
⌬Kr[in]
Allowable
angular
misalignment
with 2,200 rpm
⌬Kw[°]
Radial
spring
stiffness
Cr[lbf/in]
Mass moment of inertia
[lb-in-sec2]
Technical data
Elastomer
hardness
[Shore A]
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 88
3
91
6 ½” 7 ½” 8” 10” 11 ½” 14” 0.30 TKN 0.50 TKN 0.75 TKN 1.00 TKN
42 / 48 177 443 89 [lb] 1.74 0.71 0.95 1.12 1.41 --25,830 55,350 77,490 92,250
[lb-in-sec2] 0.0062 0.0186 0.0310 0.0434 0.0752
T 48 221 554 111 [lb] 1.74 0.71 0.95 1.12 1.41 --29,520 63,468 88,560 105,534
[lb-in-sec2] 0.0062 0.0186 0.0310 0.0434 0.0752
T 55 332 830 166 [lb] 2.47 0.75 1.37 0.99 1.42 --66,420 103,320 125,460 143,910
[lb-in-sec2] 0.0142 0.0195 0.0469 0.0389 0.0761
65 480 1,181 240 [lb] 5.07 --
1.39 1.41 1.96 - 81,180 118,080 147,600 169,740
[lb-in-sec2] 0.0389 0.0566 0.0575 0.1062
T 65 590 1,476 295 [lb] 5.29 --
1.39 1.41 1.96 - 95,940 140,220 177,120 206,640
[lb-in-sec2] 0.0389 0.0566 0.0575 0.1062
T 70 738 1,845 369 [lb] 5.73 ---
2.07 --169,740 254,610 324,720 381,546
[lb-in-sec2] 0.0522 0.1168
80 886 2,214 443 [lb] 11.5 ----
2.47 - 147,600 302,580 428,040 516,600
[lb-in-sec2] 0.1337 0.1947
T 80 1,107 2,768 554 [lb] 11.5 ----
2.47 - 177,120 332,100 470,844 568,260
[lb-in-sec2] 0.1337 0.1947
100 1,513 3,801 756 [lb] 20.7 ----
2.56 18.6 369,000 516,600 631,728 701,100
[lb-in-sec2] 0.3549 0.1859 2.0711
T 100 1,845 4,613 923 [lb] 20.7 ----
2.56 18.6 442,800 612,540 708,480 789,660
[lb-in-sec2] 0.3549 0.1859 2.0711
125 3,137 7,897 1,568 [lb] 43.5 ----
4.61 21.7 3,099,600 3,690,000 4,132,800 4,575,600
[lb-in-sec2] 1.2029 0.3806 2.7084
BoWex®-FLE-PA – Dimensions/Dimension to SAE
Size Bore
Finish bore
dDimensions [in] Special
length
l1 max.
Dimension to SAE (D3)Max. axial
misalignment
[in]
min. max. DD
1l1l3l7l8l10 l11 6 ½” 7 ½” 8” 10” 11 ½” 14”
42 / 48 - 0.813 1.813 2.68 3.94 1.97 1.61 1.97 0.79 0.51 1.89 3.15 ● ● ● ● ± .078
T 48 0.512 0.813 1.813 2.68 3.94 1.97 1.50 1.77 0.79 0.51 1.81 - ●●●● ± .039
T 55 0.669 0.813 2.125 3.35 4.53 1.97 1.46 1.89 0.94 0.51 1.89 - ● ● ● ● ± .078
65 / T 65 1.102 1.188 2.500 3.78 5.20 2.17 1.77 2.13 1.06 0.83 2.01 2.76 ●●● ± .078
T 70 1.102 1.188 2.625 3.94 6.02 2.36 1.89 2.20 1.18 0.83 2.24 - ●± .078
80 / T 80 1.220 1.438 3.000 4.88 6.69 3.54 3.07 3.43 1.18 0.83 3.43 - ●± .078
100 / T 100 1.496 1.625 3.875 5.98 10.43 4.33 3.07 4.25 1.38 0.83 4.33 - ● ● ± .078
125 1.772 2.000 4.813 7.56 9.84 5.51 1.46 5.24 1.97 1.10 3.82 - ●● ± .078
D3D2zd
L
6 ½” 8.500 7.875 6 0.35
7 ½” 9.500 8.750 8 0.35
8” 10.375 9.625 6 0.43
10” 12.375 11.625 8 0.43
11 ½” 13.875 13.125 8 0.43
14” 18.375 17.250 8 0.55
Design FLE-PA
●Flywheel flange couplings for low inertia applications
●Ideal for hydrostatic drives
●High torsional stiffness
●Reduced maintenance, blind assembly
●For applications up to + 266 °F
Example of an installation
BoWex®FLE-PA
for diesel engines with SAE connection; mounting hub
with end plate and bolt.
z = number
z = number
mounting short mounting long
Size
Technical data of BoWex®FLE-PA – Torques/Weight/Mass moments of inertia/Torsion spring stiffness
Torque TK[lb-ft]
Flange dimensions
according to SAE J 620 [in]
Size
TKN TK max. TKW
Weight /
Mass
moment
of inertia J
Hub with
max.
bore Ø
FLE-PA flanges according to SAE Dynamic torsion spring stiffness
with + 140 °F / = 0.29 [lb-ft/rad]
BoWex®- FLE-PA-Flange couplings
for I.C.-engines
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 89
92
BoWex®- FLE-PA-Flange couplings
for I.C.-engines
BoWex®FLE 42 - 6.5" Assembly
473415 Drawing BoWex®FLE 42 - 7.5" Assembly
473482 Drawing BoWex®FLE 42 - 8" Assembly
473487 Drawing
BoWex®FLE 48T - 10" Assembly
474360 Drawing BoWex®FLE 65 - 10" Assembly
474367 Drawing
BoWex®FLE 65T - 11.5" Assembly
474472 Drawing
BoWex®FLE 80 - 11.5" Assembly
474473 Drawing
BoWex®FLE 55T - 10" Assembly
474365 Drawing
BoWex®FLE 100 - 14" Assembly
474536 Drawing
The above drawings are to be used for general sizing and to provide installation dimensions. Please contact KTR Corporation for addtional details.
12.375"
11.625"
3.35"
0.52"
0.71"
1.97"
3.86"
SAE 10"
Flywheel
G=2.13" .37"
SAE #3,4
Housing &
Pump Plate
Design FLE-PA - standard SAE Layouts
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 90
3
93
BoWex®- FLE-PA-Flange couplings
for I.C.-engines
Outside
& Pilot
Diameters
Bolt
Circle
Outside
Dia.
Bolt
Circle
Pilot
Dia.
Adapter plate
(as required)
Outside
Diameter
Bolt
Circle
Pilot
Diameter
Outside Bolt Bolt Qty. Pilot Engine Brands
Diameter Circle & Size Diameter and Models
96 mm 50 mm 4 x 10 mm 70 mm HATZ - Z788, 789, 790
3.78” 1.97” 2.76”
125 mm 100 mm 3 x 10 mm 80 / 125 mm Lister Petter LP60, LP460
4.92” 3.94” 3.15 / 4.92”
128 mm 96 mm 3 x 10 mm 114 mm Lombardini FOCS Series
5.04” 3.78” 4.49”
130 mm 105 mm 4 x 10 mm 130 mm Mitsubishi K2BC, KK38DE, K4CDE, KE75
5.12” 4.13” 5.12”
135 mm 100 mm 3 x 10 mm 135 mm Kubota Super 5 Series, Perkins 103-10
5.30” 3.94” 5.30”
140 mm 105 mm 4 x 10 mm 140 mm Lombardini LDW 903, 1303, 1503, 2004
5.51” 4.13” 5.51”
150 mm 130 mm 5 x 8 mm 106 mm Kubota Mini Z400, D600, D722, V800, WG600, WG750
5.91” 5.12” 4.17”
152 mm 125 mm 3 x 12 mm 105 mm Perkins 4.108, HATZ E573, 673, 780, 786
5.98” 4.92” 4.13”
152 mm 125 mm 3 x 12 mm 100 / 152 mm Perkins 504-2T/2LR
5.98” 4.92” 3.94 / 5.98”
155 mm 125 mm 3 x 12 mm 155 mm Perkins 103-12/13/15, 104-19/22
6.10” 4.92” 6.10”
165 mm 142 mm 6 x 12 mm 125 mm HATZ L & M Series, E786
6.50” 5.59” 4.92”
188 mm 165 mm 6 x 12 mm 136 mm Kubota Super 3 D1403, D1703, V1903, V2203
7.40” 6.50” 5.35”
220 mm 200 mm 6 x 8 mm 185 mm VW 036.1, 122/126 A
8.66” 7.87” 7.28”
252 mm 234 mm 6 x 8 mm 252 mm VW 068, 126, 127 - Kubota 950
9.92” 9.21” 9.92”
265 mm 250 mm 6 x 8 mm 265 mm Daimler DM601, 602, 616
10.43” 9.84” 10.43”
279 mm 256 mm 6 x 8 mm Loc. Pins VW 028. B-M 344
10.98” 10.08” 3 x 120°
334 mm 315 mm 9 x 8 mm Loc. Pins Toyota A2 / 4Y
13.15” 12.40” 2 x 180°
338 mm 320 mm 4 x 8 mm 20/32/40 mm Mitsubishi S4E / 4G / 4D
13.31” 12.60” 0.79/1.26/1.57
Metric drive flanges
Metric Drive Flange 42/48 Series
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 91
SAE Pump Mount Plate Dimensions [in]
94
Z = Number
of Holes
N
M
N
N
N
M
A
A
Dia.
K / S
LFLF
B B
D D
A A
C C
dd
Section A-A
Flat Plate Curved Plate
1) SAE #1 flat plates are available with SAE "F" pump pilot. Please consult KTR Corporation for details.
2) SAE #4 curved plates are available in cast iron and aluminum.
• SAE Flat Plates come with zinc dichromate plating standard. (Special bracket mount machining available.)
1) BoWex®hubs are broached to fit ANSI B92 .1 class 5 splined shafts.
SAE
Housing Housing Outside Bolt Number Hole Flat Plate Curved Plate
Size Pilot Diameter Circle of Holes Diameter Available Available
A B CZ dLF Pump Pilots LF Pump Pilots
11) 20.125 21.750 20.875 12 0.47 0.75 D-E-F 1.97 D-E
2 17.625 19.250 18.375 12 0.43 0.62 C-D-E 1.97 D-E
3 16.125 17.750 16.875 12 0.43 0.37 B-C-D ——
42) 14.250 15.875 15.000 12 0.43 0.37 A-B-C 1.38 A-B
5 12.375 14.000 13.125 8 0.43 0.37 A-B-C 1.42 A-B
6 10.500 12.125 11.250 8 0.43 0.37 A-B ——
BoWex®- FLE-PA-Flange couplings
for I.C.-engines
SAE pump mounting data
SAE Pump Mount Dimensions
Pump Mounting Data [in] SAE Pump Shaft Data [in]
SAE
Pump Dia. 2 Bolt Pattern 4 Bolt Pattern Straight Shaft Splined Shaft 1)
D K MSNDiameter Keyway Major Dia. Teeth Dia. Pitch Pres. Angle
A 3.25 4.188 3/8-16 -- -- 0.625 0.156 0.625 9 16/32 30°
-- 0.750 11 16/32 30°
B 4.00 5.750 1/2-13 5.000 1/2-13 0.875 0.250 0.875 13 16/32 30°
B-B 4.00 5.750 1/2-13 5.000 1/2-13 1.000 0.250 1.000 15 16/32 30°
-- -- 1.250 19 16/32 30°
C 5.00 7.125 5/8-11 6.375 1/2-13 1.250 0.313 1.250 14 12/24 30°
-- -- 1.375 21 16/32 30°
C-C 5.00 7.125 5/8-11 6.375 1/2-13 1.500 0.375 1.500 17 12/24 30°
D 6.00 9 3/4-10 9 3/4-10 1.750 0.438 1.750 13 8/16 30°
E 6.50 12.5 1-8 12.5 3/4-10 1.750 0.438 1.750 13 8/16 30°
F 7.00 13.781 1-8 13.781 1-8 -- -- 2.000 15 8/16 30°
003_bowex p69-98_Layout 1 11/28/2012 8:31 AM Page 92
3
95
1) ALL KTR HOUSINGS COME WITH ENGINE MOUNT STANDARD - For specific technical data please call to request drawings or see available information at our website: www.ktr.com
●BoWex®bell housing kits are available from stock for many
engine brands and models
●Reinforced aluminum and cast iron design with A, B and C
pump pilots to reduce overall length of the assembly.
●Cast aluminum construction supports hydrostatic
pumps reducing the overall weight of the assembly
●All bell housing kits come standard with our original
BoWex®FLE coupling
●Some models are available with foot mount or sidepads
BoWex®- FLE-PA-Flange couplings
Highly flexible flange couplings
Design FLE-PA
Engine Bell Housing Kits
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
Engine Bell Housing and Coupling Kits
Engine
Brand
Engine
Model(s)
BoWex®
Coupling
Size
Aluminum Cast Iron SAE
Pump
Pilots
KTR Dwg. Mount Sytle 1) KTR Dwg. Mount Sytle 1)
B.S.& D. DM700 / 950 42 FLE CUST0037 Engine (only) - - A / B
3003 42 FLE CUST0373 Engine (only) - - A / B
3003 42 FLE CUST0707 Side Mount - - A / B
3013 42 FLE CUST0372 Engine (only) CUST0708 Side Mount A / B
3014 & 3024 42 FLE CUST0371 Engine (only) CUST0709 Side Mount A / B / C
3034 (LH Starter) T48 FLE CUST0365 Engine (only) - - B / C
3034 (RH Starter) T48 FLE - - CUST0364 Engine (only) B / C
Cummins A-Series 42 FLE 491610 Engine (only) 435433 Side Mount A / B
3.0L T48 FLE CUST0030 Side Mount - - A / B
4.3L & 5.7L T65 FLE CUST0031 Side Mount - - A / B / C
30ll/15 & 4020 42 FLE CUST0034 Engine (only) - - A / B
3015 & 4020 (Short SAE #5) 42 FLE CUST0033 Engine (only) - - A / B
Super Mini 42 FLE 489434 Engine (only) CUST0710 Side Mount A / B
Super Three 42 FLE 489733 Engine (only) CUST0711 Engine (only) A / B / C
Super Five 42 FLE 489665 Foot Mount CUST0712 Engine (only) A / B
Mitsubishi 4G T48 FLE CUST0399 Engine (only) - - A / B
103-10 & 403C-10/11 42 FLE CUST0009 Side Mount - - A / B
103-10 & 403C-10/11 42 FLE CUST0005 Engine (only) - - A / B
103-13/15 & 403C-13/15 42 FLE CUST0004 Engine (only) CUST0714 Side Mount A / B
104-19/22 & 404C-20/22T 42 FLE CUST0006 Engine (only) CUST0715 Side Mount A / B / C
704-30 (LH Starter) T48 FLE CUST0008 Engine (only) - - B / C
704-30 (RH Starter) T48 FLE - - CUST0007 Engine (only) B / C
3TNE (78-84) & 4TNE (84-88) 42 FLE CUST0034 Engine (only) - - A / B
3 & 4 TNE (Short SAE #5) 42 FLE CUST0033 Engine (only) - - A / B
Caterpillar
General
Motors
John Deere
Kubota
Yanmar
Perkins
003_bowex p69-98_Layout 1 11/28/2012 8:32 AM Page 93
96
HE1
HE2
HE3
HE4 6 ½” 7 ½” 8” 10” 11 ½” 14” 16” 18” l3l2D4D5Dl
1
LHE1
LHE3
LHE2
LHE4
JL
[lb in sec2]
42 HE ●- 1.563 ●● 0.16 1.77 5.75 7.09 2.56 1.65 2.76 1.97 6.0 0.0540 0.0124
●● 6.4 0.0735 0.0124
48 HE
●
- 1.813
●●
0.16 1.77 6.46 7.80 2.68 1.97 3.07 1.97
6.4 0.0938 0.0168
●● 6.8 0.1310 0.0168
●● 8.6 0.2638 0.0168
65 HE ●- 2.500 ●0.20 2.17 8.07 9.61 3.78 2.17 3.35 2.44 14.1 0.3337 0.0566
●● 15.9 0.5257 0.0566
G 65 HE ●- 2.500 ●0.12 1.77 8.07 - 3.78 2.17 2.87 1.97 11.7 0.2142 0.0673
●● 12.6 0.3293 0.0673
80 HE ●1.220 3.000 ●-2.76 10.47 -4.88 3.54 4.96 2.91 24.0 0.1868 0.2505
●●
0.24 12.44 5.20 3.15 28.7 0.6426 0.2505
G 80 HE ●1.220 3.000 ●-3.15 11.89 -4.88 3.54 5.35 3.31 27.6 0.3558 0.3788
●●
0.24 14.02 5.59 3.54 38.1 1.9924 0.3788
100 HE ●1.496 3.875 ●0.16 3.15 13.78 - 5.98 4.33 5.91 3.23 53.1 1.7268 0.9019
125 HE ●1.772 4.813 ●-3.86 16.38 - 7.56 5.51 7.32 4.06 101.0 2.6668 2.5323
●●
0.24 7.56 4.29 105.2 3.6493 2.5323
G 125 HE ●1.772 4.813 ●0.24 3.50 17.32 -7.56 5.51 7.05 3.58 106.7 4.2317 2.5810
●●
- 111.4 5.6469 2.5810
150 HE ●1.969 5.750 ●0.24 5.28 18.50 - 8.86 5.91 8.07 6.18 147.1 6.1231 4.5954
BoWex-ELASTIC®42 HE 1 40 870 U
DAD3z d1
6 ½” 8.500 7.875 6 0.35
7 ½” 9.500 8.750 8 0.35
8” 10.375 9.625 6 0.43
10” 12.375 11.625 8 0.43
11 ½” 13.875 13.125 8 0.43
14” 18.375 17.250 8 0.55
16” 20.375 19.250 8 0.55
18” 22.500 21.375 6 0.71
Design HE
max. JA
[lb in sec2]
●Flywheel flange couplings for high inertia applications
●Ideal for compressors, pumps and generators
●Torsionally soft
●Reduced maintenance, blind assembly
●Multiple hardnesses available
●Installation instructions available at www.ktr.com
z = number
z = number
Flange dimensions
according to SAE J 620 [in]
Size
Design
HE2
Design
HE4
Design
HE1
Design
HE3
Weight with
pilot bored
coupling
[lb]
Size
BoWex-ELASTIC®Type HE
Bore d
[in]
Design
Pilot
bored
Mass moment
of inertia with pilot
bored coupling
Dimensions
[in]
Flange connection
according to SAE -J620
Order form:
Coupling size Design Elastomer
hardness
Flange diameter DA
acc. to SAE or special
Mounting length
LHE
Unbored or with
bore
BoWex - ELASTIC®
Highly flexible flange couplings
003_bowex p69-98_Layout 1 11/28/2012 8:32 AM Page 94
3
97
BoWex®
MONOLASTIC®
BoWex®- FLE-PA
BoWex - ELASTIC®
Coupling
Sizes
Elastomer
hardness
[Shore A]
Rated
torque
Maximum
torque
Vibratory
torque with
10 Hz
Permissible
damping power
Max. perm.
operating
speed
Twisting
angle with
rated torque
Dynamic
torsion
spring
stiffness
Relative
damping
Resonance
2 ⭈
factor VR≈
Radial
spring
stiffnesss
Shore A TKN
[lb-ft]
TK max.
[lb-ft]
TKW
[lb-ft]
140 °F
[HP]
167 °F
[HP]
nmax.
[rpm
φTKN
[°]
Cdyn
[lb-in/rad]
VRCr
[lbf/in]
40 sh 96 288 27 26.8 8.7 6200 16 4,868 0.6 10.5 811
42 HE 50 sh 111 332 33 26.8 8.7 6200 13 7,523 0.8 7. 9 1,251
65 sh 133 399 40 26.8 8.7 6200 8 23,898 1.2 5.2 3,980
40 sh 148 443 44 36.2 12.1 5600 16 7,523 0.6 10.5 1,005
48 HE 50 sh 170 509 51 36.2 12.1 5600 13 11,506 0.8 7. 9 1,536
65 sh 207 620 62 36.2 12.1 5600 830,979 1.2 5.2 4,135
40 sh 258 775 77 60.3 20.1 4500 16 14,162 0.6 10.5 1,194
50 sh 295 886 89 60.3 20.1 4500 13 19,472 0.8 7. 9 1,645
65 sh 369 1,107 111 60.3 20.1 4500 8 53,106 1.2 5.2 4,477
40 sh 317 952 95 68.3 22.8 16 12 20,800 0.6 10.5 1,479
G 65 HE 50 sh 369 1107 111 68.3 22.8 4300 10 26,553 0.8 7. 9 1,976
65 sh 458 1,373 137 68.3 22.8 4300 6 75,234 1.2 5.2 5,568
40 sh 554 1,661 166 120.6 40.2 3600 14 39,830 0.6 10.5 2,004
80 HE 50 sh 701 2,103 210 120.6 40.2 3600 13 57,532 0.8 7. 9 2,895
65 sh 886 2,657 266 120.6 40.2 3600 6 159,318 1.2 5.2 8,018
40 sh 923 2,768 277 180.9 60.3 3000 12 66,383 0.6 10.5 2,718
G 80 HE 50 sh 1,181 3,542 354 180.9 60.3 3000 10 106,212 0.8 7. 9 4,352
65 sh 1,476 4,428 443 180.9 60.3 3000 6 283,232 1.2 5.2 11,598
40 sh 1,476 4,428 443 214.4 71.0 2700 12 106,212 0.6 10.5 2,090
100 HE 50 sh 1,845 5,535 554 214.4 71.0 2700 10 168,169 0.8 7. 9 3,255
65 sh 2,362 7,085 708 214.4 71.0 2700 6 424,848 1.2 5.2 6,853
40 sh 2,214 6,642 664 241.2 80.4 2300 12 168,169 0.6 10.5 3,523
125 HE 50 sh 2,952 8,856 886 241.2 80.4 2300 10 265,530 0.8 7. 9 5,562
70 sh 3,690 11,070 1,107 241.2 80.4 2300 6 663,825 1.2 5.2 13,900
40 sh 2,952 8,856 886 268 89.8 2100 11 265,530 0.6 10.5 3,198
G 125 HE 50 sh 3,838 11,808 1,181 268 89.8 2100 9 389,444 0.8 7. 9 5,254
70 sh 4,797 14,760 1,476 268 89.8 2100 5 973,610 1.2 5.2 10,936
40 sh 4,059 12,177 1,218 301.5 100.5 1800 10 371,742 0.6 10.5 4,077
150 HE 50 sh 5,166 15,498 1,550 301.5 100.5 1800 8 593,017 0.8 7. 9 6,853
70 sh 6,642 19,926 1,993 301.5 100.5 1800 5 1,469,266 1.2 5.2 14,277
1500
nx
Misalignments
Speed/
Condition
Misalignment
(maximum)
Coupling sizes & Hardness (Shore A)
42HE 48HE 65 and G 65 HE 80 and G 80 HE 100 HE 125 or G 125 HE 150 HE
40 sh 50 sh 65 sh 40 sh 50 sh 65 sh 40 sh 50 sh 65 sh 40 sh 50 sh 65 sh 40 sh 50 sh 65 sh 40 sh 50 sh 65 sh 40 sh 50 sh 65 sh
All Axial
coupling
ΔKa
[in] +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.08 +0.12 +0.12 +0.12 +0.12 +0.12 +0.12 +0.20 +0.20 +0.20
At
Radial
misalignment
ΔKr max.
[mm] 0.06 0.13 0.06 0.15 0.14 0.07 0.20 0.19 0.09 0.22 0.21 0.09 0.26 0.24 0.12 0.30 0.27 0.13 0.31 0.30 0.16
start-up Angular
misalignment
ΔKw
max. 0.05 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06 0.06
1,500 Cont. radial
misalignment
ΔKr
[in] 1.0 0.04 0.02 0.05 0.04 0.02 0.06 0.06 0.03 0.07 0.07 0.03 0.09 0.08 0.04 0.10 0.09 0.04 0.11 0.10 0.05
rpm Cont. angular
misalignment
ΔKw
[o}0.5 0.8 0.5 1.0 0.8 0.5 1.0 0.8 0.5 1.0 0.8 0.5 1.0 0.8 0.5 1.0 0.8 0.5 1.0 0.8 0.5
3,000
rpm Cont. angular
misalignment
ΔKw
[o]0.5 0.4 0.25 0.5 0.4 0.25 0.5 0.4 0.25 0.5 0.4 0.25 0.5 0.4 0.25 0.5 0.4 0.25 0.5 0.4 0.25
42 HE
48 HE
65 HE
G 65 HE
80 HE
G 80 HE
100 HE
125 HE
G 125 HE
150 HE
All
At
start-up
1,500
rpm
3,000
rpm
Technical data
Process of assembly, screw type with quality, tightening torques
according to KTR assembly instructions (see www.ktr.com).
⌬Kr perm. = ⌬Kr ⭈St⭈
Misalignments
For other operating speeds or higher operating temperatures,
the allowable parallel misalignment is calculated as follows:
The technical data at an ambient temperature of T = 140 °F.
Parallel misalignment ⌬Kr Angular misalignment ⌬Kw Axial misalignment ⌬Ka
BoWex - ELASTIC®
Highly flexible flange couplings
003_bowex p69-98_Layout 1 12/5/2012 4:37 PM Page 95
98
BoWex - ELASTIC®
Highly flexible flange couplings
Size
Dimensions
[in]
Weight with
max. bore
[lb]
Mass moment
of inertia
[ lb-in-sec2]
d2d3D D2z x M D4D5D6l1l2l3l4l5E E1LHEW1 LHEW2 JAJL
42 1.813 1.875 2.68 6.38 6 M6 5.75 7. 0 9 3.35 1.97 1.77 0.59 1.97 1.65 0.16 1.26 5.20 4.09 9.5 0.1071 0.0133
48 1.813 2.125 2.68 7.09 8 M6 6.46 7.87 3.62 1.97 1.77 0.67 2.17 1.77 0.16 1.26 5.39 4.29 12.1 0.1806 0.0168
65 2.500 2.813 3.78 8.82 8 M8 8.07 9.65 4.92 2.76 2.17 1.10 2.95 2.48 0.20 1.65 7. 3 6 5.91 29.1 0.6656 0.0628
80 3.000 3.000 4.88 11.62 8 M10 10.47 12.52 5.12 3.54 2.76 0.67 3.15 2.76 0.20 1.77 8.46 6.30 43.4 1.2825 0.2523
G 80 3.250 3.625 4.88 13.13 8 M10 11.89 14.09 5.71 3.54 3.15 0.87 3.54 3.07 0.20 2.17 9.25 7.28 57. 1 2.4323 0.3735
6 ½” 7 ½” 8” 10” 11 ½” 14” D1D4D5D7D8l1l2l3l63.94 4.72 5.51 7.09 9.84 JAJL
48 1.125
●
6.30 6.46 7.87 3.07 1.77 1.57
1.89 0.39
1.77
●● 6.4 0.0248 0.0443
●
1.46 0.16
●● 7.9 0.0938 0.0443
●●● 8.6 0.1310 0.0443
●●● 10.1 0.2638 0.0443
G 65 1.688 ●7.80 8.07 9.65 4.33 2.83 2.36 1.77 0.12 2.20 ●● 17.0 0.2142 0.1974
●●● 18.1 0.3293 0.1974
80 2.500 ●10.43 10.47 12.52 5.71 3.94 3.15 2.76 0.43 2.95 ●● 30.2 0.1868 0.6205
●0.24 ●● 35.1 0.6426 0.6205
G 80 2.500 ●11.81 11.89 14.09 5.71 3.94 3.15 3.15 0.43 2.95 ●● 38.4 0.3558 1.2498
●0.24 ●● 49.2 1.9924 1.2498
BoWex-ELASTIC®Design HEW-ZS
Size
max.
bore
Dimensions
[in]
Removable part HEW-ZS
LZ[in]
Weight with
max. bore
[lb]
Mass moment
of inertia
[ lb-in-sec2]
d3d4D2z1x M D4D5D6l1l2l3l4l53.94 4.72 5.51 7. 0 9 9.84 JAJL
48 2.125 1.125 7. 0 9 8 M6 6.46 7. 8 7 3.62 1.97 1.77 0.67 2.17 1.77 ● ● 15.2 0.1797 0.0443
65 2.813 1.688 8.82 8 M8 8.07 9.65 4.92 2.17 2.17 1.10 2.95 2.48 ●● 35.3 0.6612 0.1416
80 3.000 2.500 11.63 8 M10 10.47 12.52 5.12 3.54 2.76 0.67 3.15 2.76 ● ● 56.2 1.2807 0.6187
G 80 3.625 2.500 13.13 8 M10 11.89 14.09 5.71 3.54 3.15 0.87 3.54 3.07 ●● 75.4 2.4358 1.2498
z = number
Design HE-ZS, Design HEW-ZS and Design HEW
Size
BoWex-ELASTIC®Design HE-ZS
BoWex-ELASTIC®Design HEW
max.
bore
d4
Flange connection to SAE-J 620
DAfor HE-ZS
Dimensions
[in]
Removable part HE-ZS
LZ[in]
Weight with
max. bore
[lb]
Mass moment
of inertia
[lb-in-sec2]
max.
bore
●Flywheel flange and shaft to shaft couplings for high
inertia applications
●Ideal for compressors, pumps and generators
●Torsionally soft
●Reduced maintenance, blind assembly
●Multiple hardnesses available
●Accommodates for significant misalignments
●Design HE-ZS and HEW-ZS – Drop-out spacer design
Design HEW1
Design HEW2
Design HE-ZS
Design HEW-ZS
z = number
z = number
003_bowex p69-98_Layout 1 11/28/2012 8:32 AM Page 96
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