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Zero Backlash Couplings
 
FSR Flexible Beam Coupling - Aluminum
P-Series Aluminum Four Beam Couplings
P-Series Stainless Steel Four Beam Couplings
F-Series Aluminum Six Beam Couplings
F-Series Stainless Steel Six Beam Couplings
M-Series Four Beam Couplings
 

PART NUMBER BORE B1 (in) BORE B2 (in) OD (in) LENGTH (in) SET SCREW SHAFT PENETRATION (in) STATIC TORQUE (lb-in) WIND-UP (Deg/lb-in) MISALIGNMENT
ANGULAR PARALLEL AXIAL MOTION
FSR10
3 (.1875)
4 (.2500)
3 (.1875)
4 (.2500)
0.625 1.000 M4 0.436
13
13
0.360
0.360
3° 0.008 0.005
FSR12
3 (.1875)
4 (.2500)
5 (.3125)
3 (.1875)
4 (.2500)
5 (.3125)
0.750 1.250 M4 0.561
26
26
20
0.152
0.152
0.229
3° 0.008 0.005
FSR16
4 (.2500)
5 (.3125)
6 (.3750)
4 (.2500)
5 (.3125)
6 (.3750)
1.000 1.500 M5 0.670
35
33
33
0.064
0.093
0.093
3° 0.015 0.010
FSR20
5 (.3125)
6 (.3750)
8 (.5000)
5 (.3125)
6 (.3750)
8 (.5000)
1.250 1.750 M6 0.795
70
61
50
0.038
0.048
0.072
3° 0.015 0.010
FSR24
6
(.3750)
8
(.5000)
10
(.6250)
12
(.7500)
6
(.3750)
8
(.5000)
10
(.6250)
12
(.7500)
1.500 2.250 M6 1.025
120
110
95
80
0.022
0.029
0.043
0.063
3° 0.030 0.015


Note 1 Static torque ratings are at maximum misalignment. To obtain dynamic rating, static ratings should be divided by 2 for non-reversing applications and by 4 for reversing applications.
Note 2 Hardware is alloy steel with black oxide finish. Stainless steel hardware is available upon request. Parts FSR10 and FSR12 have one set screw on each end. Parts FSR16, FSR20, and FSR24 have two set screws on each end 120° apart.
Note 3 Performance ratings are for guidance only. The user must determine suitability for a particular application.

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