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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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PSMR Flexible Beam Coupling - Aluminum

Metric Aluminum Set Screw 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



 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 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
 
  3D CAD files coming soon*
Part
Number		 Bore 1
(mm)		 Bore 2
(mm)		 Outer
Diam.
OD (mm)		 Length
L (mm)		 Set
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 )
PSMR10 3 3 9.5 14.3 M2 5.97 0.62 11.83
3° 0.203 0.127 0.029
PSMR13 3 3 12.7 19.1 M2 6.73 0.90 6.66
3° 0.203 0.127 0.117
PSMR16
3
4
5
3
4
5
15.9 20.3 M3 8.53
1.70
1.36
1.36
3.21
4.78
4.78
3° 0.203 0.127 0.322
PSMR19
3
4
5
6
3
4
5
6
19.1 22.9 M4 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
PSMR22
5
6
7
8
5
6
7
8
22.2 27.0 M4 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
PSMR25
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
PSMR29
6
7
8
9
10
11
12
6
7
8
9
10
11
12
28.6 38.1 M5 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 6.394
PSMR32
6
7
8
9
10
11
12
6
7
8
9
10
11
12
31.8 38.1 M6 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. Parts PSMR10, PSMR13, PSMR16 and PSMR19 have one set screw on each end. PSMR22, PSMR25, PSMR29 and PSMR32 have two set screws 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 Shafts may penetrate up to 0.5 x L. Be certain shafts do not touch.

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