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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.

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24 Items

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  1. Ruland MWS15-3-3-A, Four Beam Coupling
    MWS15-3-3-A
    As low as $28.25 $41.43
    Ruland MWS15-3-3-A, 3mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.0mm OD, 20.0mm Length
  2. Ruland MWS15-3-3-SS, Four Beam Coupling
    MWS15-3-3-SS
    As low as $71.28 $104.54
    Ruland MWS15-3-3-SS, 3mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
  3. Ruland MWS15-4-3-A, Four Beam Coupling
    MWS15-4-3-A
    As low as $28.25 $41.43
    Ruland MWS15-4-3-A, 4mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.0mm OD, 20.0mm Length
  4. Ruland MWS15-4-3-SS, Four Beam Coupling
    MWS15-4-3-SS
    As low as $71.28 $104.54
    Ruland MWS15-4-3-SS, 4mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
  5. Ruland MWS15-4-4-A, Four Beam Coupling
    MWS15-4-4-A
    As low as $28.25 $41.43
    Ruland MWS15-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 15.0mm OD, 20.0mm Length
  6. Ruland MWS15-4-4-SS, Four Beam Coupling
    MWS15-4-4-SS
    As low as $71.28 $104.54
    Ruland MWS15-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
  7. Ruland MWS15-5-3-A, Four Beam Coupling
    MWS15-5-3-A
    As low as $28.25 $41.43
    Ruland MWS15-5-3-A, 5mm x 3mm Four Beam Coupling, Aluminum, Set Screw Style, 15.0mm OD, 20.0mm Length
  8. Ruland MWS15-5-3-SS, Four Beam Coupling
    MWS15-5-3-SS
    As low as $71.28 $104.54
    Ruland MWS15-5-3-SS, 5mm x 3mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
  9. Ruland MWS15-5-4-A, Four Beam Coupling
    MWS15-5-4-A
    As low as $28.25 $41.43
    Ruland MWS15-5-4-A, 5mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 15.0mm OD, 20.0mm Length
  10. Ruland MWS15-5-4-SS, Four Beam Coupling
    MWS15-5-4-SS
    As low as $71.28 $104.54
    Ruland MWS15-5-4-SS, 5mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
  11. Ruland MWS15-5-5-A, Four Beam Coupling
    MWS15-5-5-A
    As low as $28.25 $41.43
    Ruland MWS15-5-5-A, 5mm x 5mm Four Beam Coupling, Aluminum, Set Screw Style, 15.0mm OD, 20.0mm Length
  12. Ruland MWS15-5-5-SS, Four Beam Coupling
    MWS15-5-5-SS
    As low as $71.28 $104.54
    Ruland MWS15-5-5-SS, 5mm x 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 15.0mm OD, 20.0mm Length
  13. Ruland MWS20-4-4-A, Four Beam Coupling
    MWS20-4-4-A
    As low as $31.18 $45.72
    Ruland MWS20-4-4-A, 4mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 20.0mm OD, 20.0mm Length
  14. Ruland MWS20-4-4-SS, Four Beam Coupling
    MWS20-4-4-SS
    As low as $78.92 $115.75
    Ruland MWS20-4-4-SS, 4mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
  15. Ruland MWS20-5-4-A, Four Beam Coupling
    MWS20-5-4-A
    As low as $31.18 $45.72
    Ruland MWS20-5-4-A, 5mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 20.0mm OD, 20.0mm Length
  16. Ruland MWS20-5-4-SS, Four Beam Coupling
    MWS20-5-4-SS
    As low as $78.92 $115.75
    Ruland MWS20-5-4-SS, 5mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
  17. Ruland MWS20-5-5-A, Four Beam Coupling
    MWS20-5-5-A
    As low as $31.18 $45.72
    Ruland MWS20-5-5-A, 5mm x 5mm Four Beam Coupling, Aluminum, Set Screw Style, 20.0mm OD, 20.0mm Length
  18. Ruland MWS20-5-5-SS, Four Beam Coupling
    MWS20-5-5-SS
    As low as $78.92 $115.75
    Ruland MWS20-5-5-SS, 5mm x 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
  19. Ruland MWS20-6-4-A, Four Beam Coupling
    MWS20-6-4-A
    As low as $31.18 $45.72
    Ruland MWS20-6-4-A, 6mm x 4mm Four Beam Coupling, Aluminum, Set Screw Style, 20.0mm OD, 20.0mm Length
  20. Ruland MWS20-6-4-SS, Four Beam Coupling
    MWS20-6-4-SS
    As low as $78.92 $115.75
    Ruland MWS20-6-4-SS, 6mm x 4mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
  21. Ruland MWS20-6-5-A, Four Beam Coupling
    MWS20-6-5-A
    As low as $31.18 $45.72
    Ruland MWS20-6-5-A, 6mm x 5mm Four Beam Coupling, Aluminum, Set Screw Style, 20.0mm OD, 20.0mm Length
  22. Ruland MWS20-6-5-SS, Four Beam Coupling
    MWS20-6-5-SS
    As low as $78.92 $115.75
    Ruland MWS20-6-5-SS, 6mm x 5mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
  23. Ruland MWS20-6-6-A, Four Beam Coupling
    MWS20-6-6-A
    As low as $31.18 $45.72
    Ruland MWS20-6-6-A, 6mm x 6mm Four Beam Coupling, Aluminum, Set Screw Style, 20.0mm OD, 20.0mm Length
  24. Ruland MWS20-6-6-SS, Four Beam Coupling
    MWS20-6-6-SS
    As low as $78.92 $115.75
    Ruland MWS20-6-6-SS, 6mm x 6mm Four Beam Coupling, Stainless Steel, Set Screw Style, 20.0mm OD, 20.0mm Length
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