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Flexible Beam Couplings Shaft Collar in Shell
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FSR Flexible Beam Coupling - Aluminum

Aluminum Set Screw Flexible Beam Coupling

Features

  • Torsionally stiff with dampening
  • Aluminum for low inertia
  • Multiple beam cuts improve parallel misalignment capabilities
  • Zero-backlash
  • Bore tolerance: +.001"/–.000"
  • Maximum speed: 6,000 RPM
  • Temperature range: -40°F to 225°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
 
   

  3D CAD files coming soon*
Part
Number		 Bore B1
(in)		 Bore B2
(in)		 Outer
Diam.
OD (in)		 Length
L (in)		 Set
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)
FSR10
3 (.1875)
4 (.2500)
3 (.1875)
4 (.2500)
0.625 1.000 M4 0.472
13
13
0.360
0.360
0.0013 3° 0.008 0.005
FSR12
3 (.1875)
4 (.2500)
5 (.3125)
3 (.1875)
4 (.2500)
5 (.3125)
0.750 1.250 M4 0.593
26
26
20
0.152
0.152
0.229
0.0036 3° 0.008 0.005
FSR16
4 (.2500)
5 (.3125)
6 (.3750)
4 (.2500)
5 (.3125)
6 (.3750)
1.000 1.500 M5 0.704
35
33
33
0.064
0.093
0.093
0.0139 3° 0.015 0.010
FSR20
5 (.3125)
6 (.3750)
8 (.5000)
5 (.3125)
6 (.3750)
8 (.5000)
1.250 1.750 M6 0.820
70
61
50
0.038
0.048
0.072
0.0401 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 1.042
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. 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.
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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