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

Metric Aluminum Set Screw Flexible Beam Coupling

Features

  • Extra flexible with low bearing loads
  • 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



 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
 
 
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 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 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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