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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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    1. Ruland MWC25-1/4"-1/4"-SS, Four Beam Coupling
      MWC25-1/4"-1/4"-SS
      As low as $99.53 $145.97
      Ruland MWC25-1/4"-1/4"-SS, 1/4" x 1/4" Four Beam Coupling, Stainless Steel, Clamp Style, 0.984" (25.0mm) OD, 1.181" (30.0mm) Length
      Add to Compare
    2. Ruland MWC25-1/4"-6MM-SS, Four Beam Coupling
      MWC25-1/4"-6MM-SS
      As low as $99.53 $145.97
      Ruland MWC25-1/4"-6MM-SS, 1/4" x 6mm Four Beam Coupling, Stainless Steel, Clamp Style, 0.984" (25.0mm) OD, 1.181" (30.0mm) Length
      Add to Compare
    3. Ruland MWC25-6-6-SS, Four Beam Coupling
      MWC25-6-6-SS
      As low as $99.53 $145.97
      Ruland MWC25-6-6-SS, 6mm x 6mm Four Beam Coupling, Stainless Steel, Clamp Style, 25.0mm OD, 30.0mm Length
      Add to Compare
    4. Ruland MWC25-7-6-SS, Four Beam Coupling
      MWC25-7-6-SS
      As low as $99.53 $145.97
      Ruland MWC25-7-6-SS, 7mm x 6mm Four Beam Coupling, Stainless Steel, Clamp Style, 25.0mm OD, 30.0mm Length
      Add to Compare
    5. Ruland MWC25-7-7-SS, Four Beam Coupling
      MWC25-7-7-SS
      As low as $99.53 $145.97
      Ruland MWC25-7-7-SS, 7mm x 7mm Four Beam Coupling, Stainless Steel, Clamp Style, 25.0mm OD, 30.0mm Length
      Add to Compare
    6. Ruland MWC25-7MM-1/4"-SS, Four Beam Coupling
      MWC25-7MM-1/4"-SS
      As low as $99.53 $145.97
      Ruland MWC25-7MM-1/4"-SS, 7mm x 1/4" Four Beam Coupling, Stainless Steel, Clamp Style, 0.984" (25.0mm) OD, 1.181" (30.0mm) Length
      Add to Compare
    7. Ruland MWC25-8-6-SS, Four Beam Coupling
      MWC25-8-6-SS
      As low as $99.53 $145.97
      Ruland MWC25-8-6-SS, 8mm x 6mm Four Beam Coupling, Stainless Steel, Clamp Style, 25.0mm OD, 30.0mm Length
      Add to Compare
    8. Ruland MWC25-8-7-SS, Four Beam Coupling
      MWC25-8-7-SS
      As low as $99.53 $145.97
      Ruland MWC25-8-7-SS, 8mm x 7mm Four Beam Coupling, Stainless Steel, Clamp Style, 25.0mm OD, 30.0mm Length
      Add to Compare
    9. Ruland MWC25-8-8-SS, Four Beam Coupling
      MWC25-8-8-SS
      As low as $99.53 $145.97
      Ruland MWC25-8-8-SS, 8mm x 8mm Four Beam Coupling, Stainless Steel, Clamp Style, 25.0mm OD, 30.0mm Length
      Add to Compare
    10. Ruland MWC25-8MM-1/4"-SS, Four Beam Coupling
      MWC25-8MM-1/4"-SS
      As low as $99.53 $145.97
      Ruland MWC25-8MM-1/4"-SS, 8mm x 1/4" Four Beam Coupling, Stainless Steel, Clamp Style, 0.984" (25.0mm) OD, 1.181" (30.0mm) Length
      Add to Compare
    11. Ruland MWS25-1/4"-1/4"-SS, Four Beam Coupling
      MWS25-1/4"-1/4"-SS
      As low as $89.84 $131.76
      Ruland MWS25-1/4"-1/4"-SS, 1/4" x 1/4" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
      Add to Compare
    12. Ruland MWS25-1/4"-6MM-SS, Four Beam Coupling
      MWS25-1/4"-6MM-SS
      As low as $89.84 $131.76
      Ruland MWS25-1/4"-6MM-SS, 1/4" x 6mm Four Beam Coupling, Stainless Steel, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
      Add to Compare
    13. Ruland MWS25-6-6-SS, Four Beam Coupling
      MWS25-6-6-SS
      As low as $89.84 $131.76
      Ruland MWS25-6-6-SS, 6mm x 6mm Four Beam Coupling, Stainless Steel, Set Screw Style, 25.0mm OD, 24.0mm Length
      Add to Compare
    14. Ruland MWS25-7-6-SS, Four Beam Coupling
      MWS25-7-6-SS
      As low as $89.84 $131.76
      Ruland MWS25-7-6-SS, 7mm x 6mm Four Beam Coupling, Stainless Steel, Set Screw Style, 25.0mm OD, 24.0mm Length
      Add to Compare
    15. Ruland MWS25-7-7-SS, Four Beam Coupling
      MWS25-7-7-SS
      As low as $89.84 $131.76
      Ruland MWS25-7-7-SS, 7mm x 7mm Four Beam Coupling, Stainless Steel, Set Screw Style, 25.0mm OD, 24.0mm Length
      Add to Compare
    16. Ruland MWS25-7MM-1/4"-SS, Four Beam Coupling
      MWS25-7MM-1/4"-SS
      As low as $89.84 $131.76
      Ruland MWS25-7MM-1/4"-SS, 7mm x 1/4" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
      Add to Compare
    17. Ruland MWS25-8-6-SS, Four Beam Coupling
      MWS25-8-6-SS
      As low as $89.84 $131.76
      Ruland MWS25-8-6-SS, 8mm x 6mm Four Beam Coupling, Stainless Steel, Set Screw Style, 25.0mm OD, 24.0mm Length
      Add to Compare
    18. Ruland MWS25-8-7-SS, Four Beam Coupling
      MWS25-8-7-SS
      As low as $89.84 $131.76
      Ruland MWS25-8-7-SS, 8mm x 7mm Four Beam Coupling, Stainless Steel, Set Screw Style, 25.0mm OD, 24.0mm Length
      Add to Compare
    19. Ruland MWS25-8-8-SS, Four Beam Coupling
      MWS25-8-8-SS
      As low as $89.84 $131.76
      Ruland MWS25-8-8-SS, 8mm x 8mm Four Beam Coupling, Stainless Steel, Set Screw Style, 25.0mm OD, 24.0mm Length
      Add to Compare
    20. Ruland MWS25-8MM-1/4"-SS, Four Beam Coupling
      MWS25-8MM-1/4"-SS
      As low as $89.84 $131.76
      Ruland MWS25-8MM-1/4"-SS, 8mm x 1/4" Four Beam Coupling, Stainless Steel, Set Screw Style, 0.984" (25.0mm) OD, 0.945" (24.0mm) Length
      Add to Compare
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