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Zero Backlash Couplings
 
FCR 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) CLEAR-ANCE DIAM C (IN) (FCR) MAX LENGTH (in) CAP SCREW SHAFT PENE-TRATION (in) STATIC TORQUE (lb-in) WIND-UP (Deg/lb-in) MISALIGNMENT
MOMENT OF INERTIA (lb-in2) ANGULAR PARALLEL AXIAL MOTION
FCR10
3 (.1875)
4 (.2500)
3 (.1875)
4 (.2500)
0.625 0.796 1.000 M3 0.436
13
13
0.360
0.360
0.0013 3° 0.008 0.005
FCR12
3 (.1875)
4 (.2500)
5 (.3125)
3 (.1875)
4 (.2500)
5 (.3125)
0.750 0.879 1.250 M3 0.561
26
26
20
0.152
0.152
0.229
0.0036 3° 0.008 0.005
FCR16
4 (.2500)
5 (.3125)
6 (.3750)
4 (.2500)
5 (.3125)
6 (.3750)
1.000 1.117 1.500 M4 0.670
35
33
33
0.064
0.093
0.093
0.0139 3° 0.015 0.010
FCR20
5 (.3125)
6 (.3750)
8 (.5000)
5 (.3125)
6 (.3750)
8 (.5000)
1.250 1.459 1.750 M5 0.795
70
61
50
0.038
0.048
0.072
0.0401 3° 0.015 0.010
FCR24
6 (.3750)
8 (.5000)
10 (.6250)
12 (.7500)
6 (.3750)
8 (.5000)
10 (.6250)
12 (.7500)
1.500 1.642 2.250 M5 1.025
120
110
95
80
0.022
0.029
0.043
0.063
0.1023 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. FCR series parts have two socketed head Nypatch® cap screws on each end.
Note 3 Performance ratings are for guidance only. The user must determine suitability for a particular application.
Note 4 Coupling torque and wind-up are determined by the largest bore selected
Note 5 Shafts may penetrate up to 0.5 x L. Be certain shafts do not touch.

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