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    P-Series Beam Coupling - PSMR

    Set screw style P-Series four beam couplings (also referred to as helical couplings) with metric dimensions. Bore sizes range from 3mm to 12mm.

    Features

    • Aluminum
      • Extra flexible with low bearing loads
      • Lightweight for low inertia
      • Temperature range: -40°F to 225°F
    • Stainless Steel
      • Flexible with low bearing loads
      • Corrosion resistant
      • Temperature range: -40°F to 350°F
    • Multiple beam cuts improve parallel misalignment capabilities
    • Zero backlash
    • Constant velocity
    • RoHS3 and REACH Compliant
    • Maximum speed: 6,000 RPM
    • Bore tolerance: +.025mm/–.000mm
    Line DrawingLine Drawing

    How to Specify

    Part numbers are in the following format with numbers representing millimeters:

    Part Number Identification

    Products

    View as Grid Table

    Items 1-24 of 198

    Set Descending Direction
    1. Ruland PSMR10-3-3-A, Four Beam Coupling
      PSMR10-3-3-A
      As low as $30.21 $44.31
      Ruland PSMR10-3-3-A, 3mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 9.5mm OD, 14.3mm Length
      Add to Compare
    2. Ruland PSMR10-3-3-SS, Four Beam Coupling
      PSMR10-3-3-SS
      As low as $80.89 $118.64
      Ruland PSMR10-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 9.5mm OD, 14.3mm Length
      Add to Compare
    3. Ruland PSMR13-3-3-A, Four Beam Coupling
      PSMR13-3-3-A
      As low as $28.86 $42.33
      Ruland PSMR13-3-3-A, 3mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 12.7mm OD, 19.1mm Length
      Add to Compare
    4. Ruland PSMR13-3-3-SS, Four Beam Coupling
      PSMR13-3-3-SS
      As low as $82.46 $120.94
      Ruland PSMR13-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 12.7mm OD, 19.1mm Length
      Add to Compare
    5. Ruland PSMR16-3-3-A, Four Beam Coupling
      PSMR16-3-3-A
      As low as $27.82 $40.81
      Ruland PSMR16-3-3-A, 3mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    6. Ruland PSMR16-3-3-SS, Four Beam Coupling
      PSMR16-3-3-SS
      As low as $81.68 $119.79
      Ruland PSMR16-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    7. Ruland PSMR16-4-3-A, Four Beam Coupling
      PSMR16-4-3-A
      As low as $27.82 $40.81
      Ruland PSMR16-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    8. Ruland PSMR16-4-3-SS, Four Beam Coupling
      PSMR16-4-3-SS
      As low as $81.68 $119.79
      Ruland PSMR16-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    9. Ruland PSMR16-4-4-A, Four Beam Coupling
      PSMR16-4-4-A
      As low as $27.82 $40.81
      Ruland PSMR16-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    10. Ruland PSMR16-4-4-SS, Four Beam Coupling
      PSMR16-4-4-SS
      As low as $81.68 $119.79
      Ruland PSMR16-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    11. Ruland PSMR16-5-3-A, Four Beam Coupling
      PSMR16-5-3-A
      As low as $27.82 $40.81
      Ruland PSMR16-5-3-A, 5mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    12. Ruland PSMR16-5-3-SS, Four Beam Coupling
      PSMR16-5-3-SS
      As low as $81.68 $119.79
      Ruland PSMR16-5-3-SS, 5mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    13. Ruland PSMR16-5-4-A, Four Beam Coupling
      PSMR16-5-4-A
      As low as $27.82 $40.81
      Ruland PSMR16-5-4-A, 5mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    14. Ruland PSMR16-5-4-SS, Four Beam Coupling
      PSMR16-5-4-SS
      As low as $81.68 $119.79
      Ruland PSMR16-5-4-SS, 5mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    15. Ruland PSMR16-5-5-A, Four Beam Coupling
      PSMR16-5-5-A
      As low as $27.82 $40.81
      Ruland PSMR16-5-5-A, 5mm x 5mm Four Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    16. Ruland PSMR16-5-5-SS, Four Beam Coupling
      PSMR16-5-5-SS
      As low as $81.68 $119.79
      Ruland PSMR16-5-5-SS, 5mm x 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 20.3mm Length
      Add to Compare
    17. Ruland PSMR19-3-3-A, Four Beam Coupling
      PSMR19-3-3-A
      As low as $29.15 $42.75
      Ruland PSMR19-3-3-A, 3mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
    18. Ruland PSMR19-3-3-SS, Four Beam Coupling
      PSMR19-3-3-SS
      As low as $74.44 $109.18
      Ruland PSMR19-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
    19. Ruland PSMR19-4-3-A, Four Beam Coupling
      PSMR19-4-3-A
      As low as $29.15 $42.75
      Ruland PSMR19-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
    20. Ruland PSMR19-4-3-SS, Four Beam Coupling
      PSMR19-4-3-SS
      As low as $74.44 $109.18
      Ruland PSMR19-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
    21. Ruland PSMR19-4-4-A, Four Beam Coupling
      PSMR19-4-4-A
      As low as $29.15 $42.75
      Ruland PSMR19-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
    22. Ruland PSMR19-4-4-SS, Four Beam Coupling
      PSMR19-4-4-SS
      As low as $74.44 $109.18
      Ruland PSMR19-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
    23. Ruland PSMR19-5-3-A, Four Beam Coupling
      PSMR19-5-3-A
      As low as $29.15 $42.75
      Ruland PSMR19-5-3-A, 5mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
    24. Ruland PSMR19-5-3-SS, Four Beam Coupling
      PSMR19-5-3-SS
      As low as $74.44 $109.18
      Ruland PSMR19-5-3-SS, 5mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 22.9mm Length
      Add to Compare
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    Browse By

    Filter
    Shopping Options
    Bore (B1)
    1. 3 mm 8 items
    2. 4 mm 8 items
    3. 5 mm 14 items
    4. 6 mm 18 items
    5. 7 mm 18 items
    6. 8 mm 26 items
    7. 9 mm 24 items
    8. 10 mm 30 items
    9. 11 mm 24 items
    10. 12 mm 28 items
    Small Bore (B2)
    1. 3 mm 18 items
    2. 4 mm 10 items
    3. 5 mm 14 items
    4. 6 mm 46 items
    5. 7 mm 36 items
    6. 8 mm 28 items
    7. 9 mm 20 items
    8. 10 mm 14 items
    9. 11 mm 8 items
    10. 12 mm 4 items
    Material
    1. 303 Stainless Steel 99 items
    2. Aluminum 99 items
    Outer Diameter (OD)
    1. 0.375 in (9.5 mm) 2 items
    2. 0.500 in (12.7 mm) 2 items
    3. 0.625 in (15.9 mm) 12 items
    4. 0.750 in (19.1 mm) 20 items
    5. 0.875 in (22.2 mm) 20 items
    6. 1.000 in (25.4 mm) 30 items
    7. 1.125 in (28.6 mm) 56 items
    8. 1.250 in (31.8 mm) 56 items
    Length (L)
    1. 0.563 in (14.3 mm) 2 items
    2. 0.750 in (19.1 mm) 2 items
    3. 0.800 in (20.3 mm) 12 items
    4. 0.900 in (22.9 mm) 20 items
    5. 1.063 in (27.0 mm) 20 items
    6. 1.250 in (31.8 mm) 30 items
    7. 1.500 in (38.1 mm) 112 items
    Static Torque
    1. 0.62 Nm 1 item
    2. 0.85 Nm 1 item
    3. 0.90 Nm 1 item
    4. 1.24 Nm 1 item
    5. 1.36 Nm 5 items
    6. 1.58 Nm 4 items
    7. 1.70 Nm 1 item
    8. 1.81 Nm 12 items
    9. 1.92 Nm 5 items
    10. 2.03 Nm 2 items
    11. 2.15 Nm 4 items
    12. 2.26 Nm 2 items
    13. 2.49 Nm 7 items
    14. 2.60 Nm 5 items
    15. 2.71 Nm 2 items
    16. 2.94 Nm 1 item
    17. 3.05 Nm 1 item
    18. 3.39 Nm 5 items
    19. 3.73 Nm 5 items
    20. 3.84 Nm 13 items
    21. 3.95 Nm 1 item
    22. 4.07 Nm 1 item
    23. 4.52 Nm 9 items
    24. 4.63 Nm 9 items
    25. 4.97 Nm 10 items
    26. 5.20 Nm 13 items
    27. 5.31 Nm 1 item
    28. 5.54 Nm 1 item
    29. 5.88 Nm 14 items
    30. 6.10 Nm 5 items
    31. 6.78 Nm 17 items
    32. 7.12 Nm 1 item
    33. 7.23 Nm 5 items
    34. 7.68 Nm 1 item
    35. 7.91 Nm 14 items
    36. 9.15 Nm 12 items
    37. 9.72 Nm 5 items
    38. 10.40 Nm 1 item
    Parallel Misalignment
    1. 0.20 mm 56 items
    2. 0.38 mm 142 items
    Axial Motion
    1. 0.13 mm 56 items
    2. 0.25 mm 142 items
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