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

Metric Aluminum Clamp Flexible Beam Coupling

Features

  • Torsionally stiff with dampening
  • Aluminum for low inertia
  • Multiple beam cuts improve parallel misalignment capabilities
  • Zero-backlash
  • Bore tolerance: +.025mm/–.000mm
  • Maximum speed: 6,000 RPM
  • Temperature range: -40°F to 225°F



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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 millimeters:

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 (mm)		 Bore
B2 (mm)		 Outer
Diameter
OD (mm)		 Clearance
Diameter
C (mm) MAX		 Length
L (mm)		 Cap
Screw		 Shaft
Penetration
(mm)		 Static
Torque
(Nm)		 Torsional
Stiffness
(Deg/Nm)		 Moment
of Inertia
(x10-6 kg-m2)		 MISALIGNMENT
Angular Parallel (mm) Axial Motion (mm)
FCMR16
5
6
5
6
15.88 20.22 25.40 M3 12.00
1.47
1.47
3.211
3.211
0.380
3° 0.203 0.127
FCMR19
5
6
7
8
5
6
7
8
19.05 22.33 31.75 M3 15.06
2.94
2.94
2.71
2.26
1.331
1.331
1.666
2.036
1.037
3° 0.203 0.127
FCMR25
6
7
8
9
10
11
12
6
7
8
9
10
11
12
25.40 28.37 38.10 M4 17.87
3.95
3.95
3.73
3.73
3.73
3.28
2.82
0.548
0.548
0.862
0.862
0.862
1.097
1.566
4.120
3° 0.381 0.254
FCMR32
8
9
10
11
12
14
15
8
9
10
11
12
14
15
31.75 37.06 44.45 M5 20.82
7.91
6.89
6.89
5.65
5.65
5.08
4.86
0.313
0.392
0.392
0.627
0.627
0.705
0.862
11.885
3° 0.381 0.254
FCMR38
10
11
12
14
15
16
17
19
10
11
12
14
15
16
17
19
38.10 41.71 57.15 M5 26.47
13.56
12.43
12.43
12.43
10.73
10.73
 
9.04
0.157
0.235
0.235
0.235
0.392
0.392
 
0.627
30.032
3° 0.762 0.381

Note 1 Static torque 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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