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RULAND Carefully Made Shaft Collars and Couplings German Chinese English since 1937 Ruland Shaft Collars & Shaft Couplings
Flexible Beam Couplings Shaft Collar in Shell
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PCMR Flexible Beam Coupling - Aluminum

Metric Aluminum Clamp Flexible Beam Coupling

Features

  • Zero-backlash
  • Torsionally rigid with dampening
  • Bore tolerance: +.050mm/–.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
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
 
  Click part number for 3D CAD file
Part
Number		 Bore 1
(mm)		 Bore 2
(mm)		 Outer
Diam.
OD (mm)		 Length
L (mm)		 Cap
Screw		 Shaft
Penetration
(mm)		 Static
Torque
(Nm)		 Torsional
Stiffness
(Deg/Nm)		 MISALIGNMENT
Angular Parallel (mm) Axial Motion (mm) Moment of Inertia
(x10 - 6 kg-m² )
PCMR10 3 3 9.5 14.3 M1.6 5.97 0.62 11.83
3° 0.203 0.127 0.029
PCMR13 3 3 12.7 19.1 M2 6.73 0.90 6.66
3° 0.203 0.127 0.117
PCMR16
3
4
5
3
4
5
15.9 20.3 M2 8.53
1.70
1.36
1.36
3.21
4.78
4.78
3° 0.203 0.127 0.322
PCMR19
3
4
5
6
3
4
5
6
19.1 22.9 M2,5 9.80
2.94
1.92
1.92
1.58
1.57
2.27
2.27
2.90
3° 0.203 0.127 0.731
PCMR22
5
6
7
8
5
6
7
8
22.2 27.0 M3 11.43
2.26
2.03
1.81
1.81
1.49
1.88
2.43
2.43
3° 0.203 0.127 1.639
PCMR25
6
7
8
9
6
7
8
9
25.4 31.8 M4 13.84
4.07
4.07
3.73
3.39
1.41
1.41
1.57
1.80
3° 0.381 0.254 3.394
PCMR29
6
7
8
9
10
11
12
6
7
8
9
10
11
12
28.6 38.1 M4 17.02
5.31
5.31
4.97
4.52
4.52
3.84
3.84
0.86
0.86
0.94
1.25
1.25
1.96
1.96
3° 0.381 0.254 6.349
PCMR32
6
7
8
9
10
11
12
6
7
8
9
10
11
12
31.8 38.1 M4 17.02
7.68
7.68
7.23
6.78
6.78
5.88
5.88
0.53
0.53
0.53
0.53
0.62
1.10
1.10
3° 0.381 0.254 9.948

 

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. PCMR series parts have socketed head 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 torsional stiffness 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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