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    Beam Couplings: Six-Beam F-Series, Set Screw, Metric

    Set screw style F-Series six beam couplings (also referred to as helical couplings) with metric dimensions. Bore sizes from 5mm to 20mm.

    Features

    • Aluminum
      • Torsionally stiff with dampening
      • Lightweight for low inertia
      • Temperature range: -40°F to 225°F
    • Stainless Steel
      • High torque and torsional stiffness
      • 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 284

    Set Descending Direction
    1. Ruland FSMR16-5-5-A, Six Beam Coupling
      FSMR16-5-5-A
      As low as $34.16 $50.11
      Ruland FSMR16-5-5-A, 5mm x 5mm Six Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 25.4mm Length
      Add to Compare
    2. Ruland FSMR16-5-5-SS, Six Beam Coupling
      FSMR16-5-5-SS
      As low as $85.50 $125.39
      Ruland FSMR16-5-5-SS, 5mm x 5mm Six Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 25.4mm Length
      Add to Compare
    3. Ruland FSMR16-6-5-A, Six Beam Coupling
      FSMR16-6-5-A
      As low as $34.16 $50.11
      Ruland FSMR16-6-5-A, 6mm x 5mm Six Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 25.4mm Length
      Add to Compare
    4. Ruland FSMR16-6-5-SS, Six Beam Coupling
      FSMR16-6-5-SS
      As low as $85.50 $125.39
      Ruland FSMR16-6-5-SS, 6mm x 5mm Six Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 25.4mm Length
      Add to Compare
    5. Ruland FSMR16-6-6-A, Six Beam Coupling
      FSMR16-6-6-A
      As low as $34.16 $50.11
      Ruland FSMR16-6-6-A, 6mm x 6mm Six Beam Coupling, Aluminum, Set Screw Style, 15.9mm OD, 25.4mm Length
      Add to Compare
    6. Ruland FSMR16-6-6-SS, Six Beam Coupling
      FSMR16-6-6-SS
      As low as $85.50 $125.39
      Ruland FSMR16-6-6-SS, 6mm x 6mm Six Beam Coupling, Stainless Steel, Set Screw Style, 15.9mm OD, 25.4mm Length
      Add to Compare
    7. Ruland FSMR19-5-5-A, Six Beam Coupling
      FSMR19-5-5-A
      As low as $32.29 $47.36
      Ruland FSMR19-5-5-A, 5mm x 5mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    8. Ruland FSMR19-5-5-SS, Six Beam Coupling
      FSMR19-5-5-SS
      As low as $84.17 $123.45
      Ruland FSMR19-5-5-SS, 5mm x 5mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    9. Ruland FSMR19-6-5-A, Six Beam Coupling
      FSMR19-6-5-A
      As low as $32.29 $47.36
      Ruland FSMR19-6-5-A, 6mm x 5mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    10. Ruland FSMR19-6-5-SS, Six Beam Coupling
      FSMR19-6-5-SS
      As low as $84.17 $123.45
      Ruland FSMR19-6-5-SS, 6mm x 5mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    11. Ruland FSMR19-6-6-A, Six Beam Coupling
      FSMR19-6-6-A
      As low as $32.29 $47.36
      Ruland FSMR19-6-6-A, 6mm x 6mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    12. Ruland FSMR19-6-6-SS, Six Beam Coupling
      FSMR19-6-6-SS
      As low as $84.17 $123.45
      Ruland FSMR19-6-6-SS, 6mm x 6mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    13. Ruland FSMR19-7-5-A, Six Beam Coupling
      FSMR19-7-5-A
      As low as $32.29 $47.36
      Ruland FSMR19-7-5-A, 7mm x 5mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    14. Ruland FSMR19-7-5-SS, Six Beam Coupling
      FSMR19-7-5-SS
      As low as $84.17 $123.45
      Ruland FSMR19-7-5-SS, 7mm x 5mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    15. Ruland FSMR19-7-6-A, Six Beam Coupling
      FSMR19-7-6-A
      As low as $32.29 $47.36
      Ruland FSMR19-7-6-A, 7mm x 6mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    16. Ruland FSMR19-7-6-SS, Six Beam Coupling
      FSMR19-7-6-SS
      As low as $84.17 $123.45
      Ruland FSMR19-7-6-SS, 7mm x 6mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    17. Ruland FSMR19-7-7-A, Six Beam Coupling
      FSMR19-7-7-A
      As low as $32.29 $47.36
      Ruland FSMR19-7-7-A, 7mm x 7mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    18. Ruland FSMR19-7-7-SS, Six Beam Coupling
      FSMR19-7-7-SS
      As low as $84.17 $123.45
      Ruland FSMR19-7-7-SS, 7mm x 7mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    19. Ruland FSMR19-8-5-A, Six Beam Coupling
      FSMR19-8-5-A
      As low as $32.29 $47.36
      Ruland FSMR19-8-5-A, 8mm x 5mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    20. Ruland FSMR19-8-5-SS, Six Beam Coupling
      FSMR19-8-5-SS
      As low as $84.17 $123.45
      Ruland FSMR19-8-5-SS, 8mm x 5mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    21. Ruland FSMR19-8-6-A, Six Beam Coupling
      FSMR19-8-6-A
      As low as $32.29 $47.36
      Ruland FSMR19-8-6-A, 8mm x 6mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    22. Ruland FSMR19-8-6-SS, Six Beam Coupling
      FSMR19-8-6-SS
      As low as $84.17 $123.45
      Ruland FSMR19-8-6-SS, 8mm x 6mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    23. Ruland FSMR19-8-7-A, Six Beam Coupling
      FSMR19-8-7-A
      As low as $32.29 $47.36
      Ruland FSMR19-8-7-A, 8mm x 7mm Six Beam Coupling, Aluminum, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
    24. Ruland FSMR19-8-7-SS, Six Beam Coupling
      FSMR19-8-7-SS
      As low as $84.17 $123.45
      Ruland FSMR19-8-7-SS, 8mm x 7mm Six Beam Coupling, Stainless Steel, Set Screw Style, 19.1mm OD, 31.8mm Length
      Add to Compare
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    Browse By

    Filter
    Shopping Options
    Bore (B1)
    1. 5 mm 4 items
    2. 6 mm 10 items
    3. 7 mm 10 items
    4. 8 mm 16 items
    5. 9 mm 12 items
    6. 10 mm 18 items
    7. 11 mm 22 items
    8. 12 mm 30 items
    9. 13 mm 20 items
    10. 14 mm 24 items
    11. 15 mm 28 items
    12. 16 mm 14 items
    13. 17 mm 16 items
    14. 18 mm 20 items
    15. 19 mm 20 items
    16. 20 mm 20 items
    Small Bore (B2)
    1. 5 mm 12 items
    2. 6 mm 22 items
    3. 7 mm 16 items
    4. 8 mm 28 items
    5. 9 mm 22 items
    6. 10 mm 40 items
    7. 11 mm 32 items
    8. 12 mm 28 items
    9. 13 mm 22 items
    10. 14 mm 18 items
    11. 15 mm 14 items
    12. 16 mm 10 items
    13. 17 mm 8 items
    14. 18 mm 6 items
    15. 19 mm 4 items
    16. 20 mm 2 items
    Material
    1. 303 Stainless Steel 142 items
    2. Aluminum 142 items
    Outer Diameter (OD)
    1. 0.625 in (15.9 mm) 6 items
    2. 0.750 in (19.1 mm) 20 items
    3. 1.000 in (25.4 mm) 56 items
    4. 1.250 in (31.8 mm) 72 items
    5. 1.500 in (38.1 mm) 130 items
    Length (L)
    1. 1.000 in (25.4 mm) 6 items
    2. 1.250 in (31.8 mm) 20 items
    3. 1.500 in (38.1 mm) 56 items
    4. 1.750 in (44.5 mm) 72 items
    5. 2.250 in (57.2 mm) 130 items
    Static Torque
    1. 1.47 Nm 3 items
    2. 2.04 Nm 3 items
    3. 2.26 Nm 4 items
    4. 2.71 Nm 3 items
    5. 2.82 Nm 7 items
    6. 2.94 Nm 3 items
    7. 3.28 Nm 6 items
    8. 3.51 Nm 7 items
    9. 3.73 Nm 12 items
    10. 3.95 Nm 3 items
    11. 4.40 Nm 13 items
    12. 4.64 Nm 3 items
    13. 4.86 Nm 8 items
    14. 5.08 Nm 13 items
    15. 5.65 Nm 9 items
    16. 5.66 Nm 12 items
    17. 6.00 Nm 3 items
    18. 6.89 Nm 5 items
    19. 7.91 Nm 1 item
    20. 9.04 Nm 27 items
    21. 9.49 Nm 11 items
    22. 10.73 Nm 13 items
    23. 11.32 Nm 21 items
    24. 11.75 Nm 11 items
    25. 12.43 Nm 13 items
    26. 13.56 Nm 1 item
    27. 14.60 Nm 9 items
    28. 16.08 Nm 6 items
    29. 16.38 Nm 17 items
    30. 16.42 Nm 10 items
    31. 19.82 Nm 13 items
    32. 21.52 Nm 13 items
    33. 23.53 Nm 1 item
    Parallel Misalignment
    1. 0.20 mm 26 items
    2. 0.38 mm 128 items
    3. 0.76 mm 130 items
    Axial Motion
    1. 0.13 mm 26 items
    2. 0.25 mm 128 items
    3. 0.38 mm 130 items
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