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Flexible Beam Couplings Shaft Collar in Shell
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FCR Flexible Beam Coupling - Stainless Steel

Stainless Steel Clamp Flexible Beam Coupling

Features

  • High torque and torsional stiffness
  • Corrosion resistant stainless steel
  • Multiple beams cuts improve parallel misalignment capabilities
  • Zero-backlash
  • Bore tolerance: +.001"/–.000"
  • Maximum speed: 6,000 RPM
  • Temperature range: -40°F to 350°F



 distributor

How to Specify

Choose any Bore 1 and any Bore 2 available in a body size. Part numbers are in the following format with numbers representing sixteenths of an inch:

order bc
 
 
Flexible Beam Coupling
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
MW-Series
Four Beam Couplings
Coupling Support Form
Product Index
 
   

  Click part number for 3D CAD file
Part
Number		 Bore
B1 (in)		 Bore
B2 (in)		 Outer
Diam.
OD (in)		 Clearance
Diameter
C (in) MAX		 Length
L (in)		 Cap
screw		 Shaft
Penetration
(in)		 Static
Torque
(lb-in)		 Torsional
Stiffness
(Deg/lb-in)		 MISALIGNMENT
Moment of
Inertia
(lb-in²)		 Angular Parallel (in) Axial Motion (in)
FCR10
3 (.1875)
4 (.2500)
3 (.1875)
4 (.2500)
0.625 0.796 1.000 M2.5 0.472
18
18
0.088
0.088
0.0037 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 0.593
41
41
31
0.079
0.079
0.096
0.0100 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 0.704
53
50
50
0.034
0.046
0.046
0.0381 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 0.820
142
129
107
0.017
0.023
0.037
0.1094 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 M6 1.042
208
190
175
145
0.016
0.021
0.031
0.045
0.2814 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 a black oxide finish and Nypatch® socket head cap screws. Stainless steel hardware is available upon request.
Note 3 Performance ratings are for guidance only. The user must determine suitability for a particular application.
Note 4 Coupling torque and torsional stiffness are determined by the largest bore selected.
Note 5 Torque ratings for the couplings are based on the physical limitations/failure point of the machined beams. Under normal/typical conditions the hubs are capable of holding up to the rated torque of the machined beams. In some cases, especially when the smallest standard bores are used or where shafts are undersized, slippage on the shaft is possible below the rated torque of the machined beams. Keyways are available to provide additional torque capacity in the shaft/hub connection when required. Please consult technical support for more assistance.

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