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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 1-24 of 2496

Set Descending Direction
  1. Ruland FCMR16-5-5-A, Six Beam Coupling
    FCMR16-5-5-A
    As low as $36.23 $53.13
    Ruland FCMR16-5-5-A, 5mm x 5mm Six Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 25.4mm Length
  2. Ruland FCMR16-5-5-SS, Six Beam Coupling
    FCMR16-5-5-SS
    As low as $90.40 $132.58
    Ruland FCMR16-5-5-SS, 5mm x 5mm Six Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 25.4mm Length
  3. Ruland FCMR16-6-5-A, Six Beam Coupling
    FCMR16-6-5-A
    As low as $36.23 $53.13
    Ruland FCMR16-6-5-A, 6mm x 5mm Six Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 25.4mm Length
  4. Ruland FCMR16-6-5-SS, Six Beam Coupling
    FCMR16-6-5-SS
    As low as $90.40 $132.58
    Ruland FCMR16-6-5-SS, 6mm x 5mm Six Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 25.4mm Length
  5. Ruland FCMR16-6-6-A, Six Beam Coupling
    FCMR16-6-6-A
    As low as $36.23 $53.13
    Ruland FCMR16-6-6-A, 6mm x 6mm Six Beam Coupling, Aluminum, Clamp Style, 15.9mm OD, 25.4mm Length
  6. Ruland FCMR16-6-6-SS, Six Beam Coupling
    FCMR16-6-6-SS
    As low as $90.40 $132.58
    Ruland FCMR16-6-6-SS, 6mm x 6mm Six Beam Coupling, Stainless Steel, Clamp Style, 15.9mm OD, 25.4mm Length
  7. Ruland FCMR19-5-5-A, Six Beam Coupling
    FCMR19-5-5-A
    As low as $37.80 $55.45
    Ruland FCMR19-5-5-A, 5mm x 5mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  8. Ruland FCMR19-5-5-SS, Six Beam Coupling
    FCMR19-5-5-SS
    As low as $89.00 $130.53
    Ruland FCMR19-5-5-SS, 5mm x 5mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
  9. Ruland FCMR19-6-5-A, Six Beam Coupling
    FCMR19-6-5-A
    As low as $37.80 $55.45
    Ruland FCMR19-6-5-A, 6mm x 5mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  10. Ruland FCMR19-6-5-SS, Six Beam Coupling
    FCMR19-6-5-SS
    As low as $89.00 $130.53
    Ruland FCMR19-6-5-SS, 6mm x 5mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
  11. Ruland FCMR19-6-6-A, Six Beam Coupling
    FCMR19-6-6-A
    As low as $37.80 $55.45
    Ruland FCMR19-6-6-A, 6mm x 6mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  12. Ruland FCMR19-6-6-SS, Six Beam Coupling
    FCMR19-6-6-SS
    As low as $89.00 $130.53
    Ruland FCMR19-6-6-SS, 6mm x 6mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
  13. Ruland FCMR19-7-5-A, Six Beam Coupling
    FCMR19-7-5-A
    As low as $37.80 $55.45
    Ruland FCMR19-7-5-A, 7mm x 5mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  14. Ruland FCMR19-7-5-SS, Six Beam Coupling
    FCMR19-7-5-SS
    As low as $89.00 $130.53
    Ruland FCMR19-7-5-SS, 7mm x 5mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
  15. Ruland FCMR19-7-6-A, Six Beam Coupling
    FCMR19-7-6-A
    As low as $37.80 $55.45
    Ruland FCMR19-7-6-A, 7mm x 6mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  16. Ruland FCMR19-7-6-SS, Six Beam Coupling
    FCMR19-7-6-SS
    As low as $89.00 $130.53
    Ruland FCMR19-7-6-SS, 7mm x 6mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
  17. Ruland FCMR19-7-7-A, Six Beam Coupling
    FCMR19-7-7-A
    As low as $37.80 $55.45
    Ruland FCMR19-7-7-A, 7mm x 7mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  18. Ruland FCMR19-7-7-SS, Six Beam Coupling
    FCMR19-7-7-SS
    As low as $89.00 $130.53
    Ruland FCMR19-7-7-SS, 7mm x 7mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
  19. Ruland FCMR19-8-5-A, Six Beam Coupling
    FCMR19-8-5-A
    As low as $37.80 $55.45
    Ruland FCMR19-8-5-A, 8mm x 5mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  20. Ruland FCMR19-8-5-SS, Six Beam Coupling
    FCMR19-8-5-SS
    As low as $89.00 $130.53
    Ruland FCMR19-8-5-SS, 8mm x 5mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
  21. Ruland FCMR19-8-6-A, Six Beam Coupling
    FCMR19-8-6-A
    As low as $37.80 $55.45
    Ruland FCMR19-8-6-A, 8mm x 6mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  22. Ruland FCMR19-8-6-SS, Six Beam Coupling
    FCMR19-8-6-SS
    As low as $89.00 $130.53
    Ruland FCMR19-8-6-SS, 8mm x 6mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
  23. Ruland FCMR19-8-7-A, Six Beam Coupling
    FCMR19-8-7-A
    As low as $37.80 $55.45
    Ruland FCMR19-8-7-A, 8mm x 7mm Six Beam Coupling, Aluminum, Clamp Style, 19.1mm OD, 31.8mm Length
  24. Ruland FCMR19-8-7-SS, Six Beam Coupling
    FCMR19-8-7-SS
    As low as $89.00 $130.53
    Ruland FCMR19-8-7-SS, 8mm x 7mm Six Beam Coupling, Stainless Steel, Clamp Style, 19.1mm OD, 31.8mm Length
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