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Beam Couplings for Motors

Beam couplings from Ruland are manufactured with multiple spiral (helical) cuts allowing for zero-backlash and greater torque, torsional stiffness, and misalignment capabilities when compared to standard single beam couplings. The 4-beam style (P- and MW-Series) have two sets of two beams allowing for greater flexibility and more compact lengths than 6-beam couplings, making them an ideal encoder coupling. The 6-beam style (F-series) has two sets of three beams for increased torque and torsional stiffness capabilities when compared to 4-beam style. They are best suited for light duty power transmission applications such as coupling a motor and lead screw.

 

Most motor designers start with aluminum beam couplings for their cost effectiveness and low inertia. Stainless steel beam couplings are designed for motor applications with higher torque than an aluminum coupling can accommodate, but designers must be careful when using one, as they have significantly greater inertia than aluminum types. Ruland manufactures beam couplings with a balanced design for smooth operation up to 6,000 RPM. They are available in clamp and set screw styles with bores in sizes from 3/32” to ¾” and 3mm to 20mm.

Products

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Items 1441-1464 of 2497

Set Descending Direction
  1. Ruland MWS30-3/8"-9MM-SS, Four Beam Coupling
    MWS30-3/8"-9MM-SS
    As low as $121.28 $177.87
    Ruland MWS30-3/8"-9MM-SS, 3/8" x 9mm Four Beam Coupling, Stainless Steel, Set Screw Style, 1.181" (30.0mm) OD, 1.181" (30.0mm) Length
  2. Ruland MWS30-8-8-A, Four Beam Coupling
    MWS30-8-8-A
    As low as $52.57 $77.11
    Ruland MWS30-8-8-A, 8mm x 8mm Four Beam Coupling, Aluminum, Set Screw Style, 30.0mm OD, 30.0mm Length
  3. Ruland MWS30-8-8-SS, Four Beam Coupling
    MWS30-8-8-SS
    As low as $121.28 $177.87
    Ruland MWS30-8-8-SS, 8mm x 8mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
  4. Ruland MWS30-9-8-A, Four Beam Coupling
    MWS30-9-8-A
    As low as $52.57 $77.11
    Ruland MWS30-9-8-A, 9mm x 8mm Four Beam Coupling, Aluminum, Set Screw Style, 30.0mm OD, 30.0mm Length
  5. Ruland MWS30-9-8-SS, Four Beam Coupling
    MWS30-9-8-SS
    As low as $121.28 $177.87
    Ruland MWS30-9-8-SS, 9mm x 8mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
  6. Ruland MWS30-9-9-A, Four Beam Coupling
    MWS30-9-9-A
    As low as $52.57 $77.11
    Ruland MWS30-9-9-A, 9mm x 9mm Four Beam Coupling, Aluminum, Set Screw Style, 30.0mm OD, 30.0mm Length
  7. Ruland MWS30-9-9-SS, Four Beam Coupling
    MWS30-9-9-SS
    As low as $121.28 $177.87
    Ruland MWS30-9-9-SS, 9mm x 9mm Four Beam Coupling, Stainless Steel, Set Screw Style, 30.0mm OD, 30.0mm Length
  8. Ruland PCMR10-3-3-A, Four Beam Coupling
    PCMR10-3-3-A
    As low as $38.59 $56.60
    Ruland PCMR10-3-3-A, 3mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 9.5mm OD, 14.3mm Length
  9. Ruland PCMR10-3-3-SS, Four Beam Coupling
    PCMR10-3-3-SS
    As low as $88.38 $129.63
    Ruland PCMR10-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 9.5mm OD, 14.3mm Length
  10. Ruland PCMR13-3-3-A, Four Beam Coupling
    PCMR13-3-3-A
    As low as $34.45 $50.53
    Ruland PCMR13-3-3-A, 3mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 12.7mm OD, 19.1mm Length
  11. PCMR13-3-3-SS
    PCMR13-3-3-SS
    As low as $90.08 $132.11
    Ruland PCMR13-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 12.7mm OD, 19.1mm Length
  12. Ruland PCMR13-4-4-A, Four Beam Coupling
    PCMR13-4-4-A
    As low as $34.45 $50.53
    Ruland PCMR13-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Clamp Style, 12.7mm OD, 19.1mm Length
  13. PCMR13-4-4-SS
    PCMR13-4-4-SS
    As low as $90.08 $132.11
    Ruland PCMR13-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Clamp Style, 12.7mm OD, 19.1mm Length
  14. Ruland PCMR16-3-3-A, Four Beam Coupling
    PCMR16-3-3-A
    As low as $33.17 $48.66
    Ruland PCMR16-3-3-A, 3mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
  15. Ruland PCMR16-3-3-SS, Four Beam Coupling
    PCMR16-3-3-SS
    As low as $91.58 $134.32
    Ruland PCMR16-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 20.3mm Length
  16. Ruland PCMR16-4-3-A, Four Beam Coupling
    PCMR16-4-3-A
    As low as $33.17 $48.66
    Ruland PCMR16-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
  17. Ruland PCMR16-4-3-SS, Four Beam Coupling
    PCMR16-4-3-SS
    As low as $91.58 $134.32
    Ruland PCMR16-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 20.3mm Length
  18. Ruland PCMR16-4-4-A, Four Beam Coupling
    PCMR16-4-4-A
    As low as $33.17 $48.66
    Ruland PCMR16-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
  19. Ruland PCMR16-4-4-SS, Four Beam Coupling
    PCMR16-4-4-SS
    As low as $91.58 $134.32
    Ruland PCMR16-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 20.3mm Length
  20. Ruland PCMR16-5-3-A, Four Beam Coupling
    PCMR16-5-3-A
    As low as $33.17 $48.66
    Ruland PCMR16-5-3-A, 5mm x 3mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
  21. Ruland PCMR16-5-3-SS, Four Beam Coupling
    PCMR16-5-3-SS
    As low as $91.58 $134.32
    Ruland PCMR16-5-3-SS, 5mm x 3mm Four Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 20.3mm Length
  22. Ruland PCMR16-5-4-A, Four Beam Coupling
    PCMR16-5-4-A
    As low as $33.17 $48.66
    Ruland PCMR16-5-4-A, 5mm x 4mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
  23. Ruland PCMR16-5-4-SS, Four Beam Coupling
    PCMR16-5-4-SS
    As low as $91.58 $134.32
    Ruland PCMR16-5-4-SS, 5mm x 4mm Four Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 20.3mm Length
  24. Ruland PCMR16-5-5-A, Four Beam Coupling
    PCMR16-5-5-A
    As low as $33.17 $48.66
    Ruland PCMR16-5-5-A, 5mm x 5mm Four Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 20.3mm Length
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