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    Standard Bellows Coupling: Metric

    Standard bellows couplings with metric dimensions are available with clamp style hubs with or without keyways in bore sizes ranging from 3mm to 45mm. Stainless steel hubs and other custom features are available by special order.

    Features

    • High torque with low inertia
    • Balanced design for high RPM
    • Long life with no maintenance
    • Increased Misalignment
    • Constant velocity
    • Zero backlash
    • RoHS3 and REACH Compliant
    • Maximum speed: 10,000 RPM
    • Bore tolerance: +.03mm/-.00mm
    • Temperature Range: -40°C to 93 °C

    Material

    • Aluminum hubs are standard
    • Stainless steel hubs available upon request
    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 529-552 of 856

    Set Descending Direction
    1. Ruland MBCK33-8-8-A, Bellows Coupling
      MBCK33-8-8-A
      As low as $115.40 $169.25
      Ruland MBCK33-8-8-A, 8mm x 8mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 33.3mm, OD 43.2mm Length
      Add to Compare
    2. Ruland MBCK33-9-8-A, Bellows Coupling
      MBCK33-9-8-A
      As low as $115.40 $169.25
      Ruland MBCK33-9-8-A, 9mm x 8mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 33.3mm, OD 43.2mm Length
      Add to Compare
    3. Ruland MBCK33-9-9-A, Bellows Coupling
      MBCK33-9-9-A
      As low as $115.40 $169.25
      Ruland MBCK33-9-9-A, 9mm x 9mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 33.3mm, OD 43.2mm Length
      Add to Compare
    4. Ruland MBCK41-10-10-A, Bellows Coupling
      MBCK41-10-10-A
      As low as $137.86 $202.20
      Ruland MBCK41-10-10-A, 10mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    5. Ruland MBCK41-11-10-A, Bellows Coupling
      MBCK41-11-10-A
      As low as $137.86 $202.20
      Ruland MBCK41-11-10-A, 11mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    6. Ruland MBCK41-11-11-A, Bellows Coupling
      MBCK41-11-11-A
      As low as $137.86 $202.20
      Ruland MBCK41-11-11-A, 11mm x 11mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    7. Ruland MBCK41-12-10-A, Bellows Coupling
      MBCK41-12-10-A
      As low as $137.86 $202.20
      Ruland MBCK41-12-10-A, 12mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    8. Ruland MBCK41-12-11-A, Bellows Coupling
      MBCK41-12-11-A
      As low as $137.86 $202.20
      Ruland MBCK41-12-11-A, 12mm x 11mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    9. Ruland MBCK41-12-12-A, Bellows Coupling
      MBCK41-12-12-A
      As low as $137.86 $202.20
      Ruland MBCK41-12-12-A, 12mm x 12mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    10. Ruland MBCK41-13-10-A, Bellows Coupling
      MBCK41-13-10-A
      As low as $137.86 $202.20
      Ruland MBCK41-13-10-A, 13mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    11. Ruland MBCK41-13-11-A, Bellows Coupling
      MBCK41-13-11-A
      As low as $137.86 $202.20
      Ruland MBCK41-13-11-A, 13mm x 11mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    12. Ruland MBCK41-13-12-A, Bellows Coupling
      MBCK41-13-12-A
      As low as $137.86 $202.20
      Ruland MBCK41-13-12-A, 13mm x 12mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    13. Ruland MBCK41-13-13-A, Bellows Coupling
      MBCK41-13-13-A
      As low as $137.86 $202.20
      Ruland MBCK41-13-13-A, 13mm x 13mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    14. Ruland MBCK41-14-10-A, Bellows Coupling
      MBCK41-14-10-A
      As low as $137.86 $202.20
      Ruland MBCK41-14-10-A, 14mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    15. Ruland MBCK41-14-11-A, Bellows Coupling
      MBCK41-14-11-A
      As low as $137.86 $202.20
      Ruland MBCK41-14-11-A, 14mm x 11mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    16. Ruland MBCK41-14-12-A, Bellows Coupling
      MBCK41-14-12-A
      As low as $137.86 $202.20
      Ruland MBCK41-14-12-A, 14mm x 12mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    17. Ruland MBCK41-14-13-A, Bellows Coupling
      MBCK41-14-13-A
      As low as $137.86 $202.20
      Ruland MBCK41-14-13-A, 14mm x 13mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    18. Ruland MBCK41-14-14-A, Bellows Coupling
      MBCK41-14-14-A
      As low as $137.86 $202.20
      Ruland MBCK41-14-14-A, 14mm x 14mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    19. Ruland MBCK41-15-10-A, Bellows Coupling
      MBCK41-15-10-A
      As low as $137.86 $202.20
      Ruland MBCK41-15-10-A, 15mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    20. Ruland MBCK41-15-11-A, Bellows Coupling
      MBCK41-15-11-A
      As low as $137.86 $202.20
      Ruland MBCK41-15-11-A, 15mm x 11mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    21. Ruland MBCK41-15-12-A, Bellows Coupling
      MBCK41-15-12-A
      As low as $137.86 $202.20
      Ruland MBCK41-15-12-A, 15mm x 12mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    22. Ruland MBCK41-15-13-A, Bellows Coupling
      MBCK41-15-13-A
      As low as $137.86 $202.20
      Ruland MBCK41-15-13-A, 15mm x 13mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    23. Ruland MBCK41-15-14-A, Bellows Coupling
      MBCK41-15-14-A
      As low as $137.86 $202.20
      Ruland MBCK41-15-14-A, 15mm x 14mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
    24. Ruland MBCK41-15-15-A, Bellows Coupling
      MBCK41-15-15-A
      As low as $137.86 $202.20
      Ruland MBCK41-15-15-A, 15mm x 15mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 41.3mm, OD 51.7mm Length
      Add to Compare
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    Shopping Options
    Bore Type
    Bore (B1)
    1. 3 mm 1 item
    2. 4 mm 3 items
    3. 5 mm 5 items
    4. 6 mm 8 items
    5. 7 mm 8 items
    6. 8 mm 13 items
    7. 9 mm 12 items
    8. 10 mm 18 items
    9. 11 mm 24 items
    10. 12 mm 32 items
    11. 13 mm 24 items
    12. 14 mm 32 items
    13. 15 mm 40 items
    14. 16 mm 48 items
    15. 17 mm 36 items
    16. 18 mm 42 items
    17. 19 mm 48 items
    18. 20 mm 56 items
    19. 21 mm 1 item
    20. 22 mm 40 items
    21. 24 mm 46 items
    22. 25 mm 54 items
    23. 28 mm 36 items
    24. 30 mm 42 items
    25. 32 mm 48 items
    26. 35 mm 26 items
    27. 38 mm 30 items
    28. 40 mm 14 items
    29. 42 mm 16 items
    30. 45 mm 18 items
    31. 3/2.5D mm 1 item
    32. 4/3.5D mm 2 items
    33. 5/4.5D mm 4 items
    34. 6/5.5D mm 7 items
    35. 7/6.5D mm 5 items
    36. 8/7.5D mm 7 items
    37. 9/8.5D mm 4 items
    38. 10/9.5D mm 5 items
    Small Bore (B2)
    1. 3 mm 4 items
    2. 4 mm 8 items
    3. 5 mm 6 items
    4. 6 mm 17 items
    5. 7 mm 14 items
    6. 8 mm 29 items
    7. 9 mm 24 items
    8. 10 mm 42 items
    9. 11 mm 36 items
    10. 12 mm 54 items
    11. 13 mm 46 items
    12. 14 mm 66 items
    13. 15 mm 58 items
    14. 16 mm 50 items
    15. 17 mm 42 items
    16. 18 mm 36 items
    17. 19 mm 31 items
    18. 20 mm 42 items
    19. 22 mm 34 items
    20. 24 mm 28 items
    21. 25 mm 40 items
    22. 28 mm 32 items
    23. 30 mm 26 items
    24. 32 mm 20 items
    25. 35 mm 14 items
    26. 38 mm 10 items
    27. 40 mm 6 items
    28. 42 mm 4 items
    29. 45 mm 2 items
    30. 3/2.5D mm 4 items
    31. 4/3.5D mm 3 items
    32. 5/4.5D mm 6 items
    33. 6/5.5D mm 9 items
    34. 7/6.5D mm 6 items
    35. 8/7.5D mm 4 items
    36. 9/8.5D mm 2 items
    37. 10/9.5D mm 1 item
    Keyway
    1. No 459 items
    2. Yes 397 items
    Outer Diameter (OD)
    1. 0.590 in (15.0 mm) 20 items
    2. 0.750 in (19.1 mm) 25 items
    3. 1.000 in (25.4 mm) 70 items
    4. 1.313 in (33.3 mm) 90 items
    5. 1.625 in (41.3 mm) 132 items
    6. 2.000 in (50.8 mm) 157 items
    7. 2.250 in (57.2 mm) 182 items
    8. 2.750 in (69.9 mm) 90 items
    9. 3.125 in (79.4 mm) 90 items
    Length (L)
    1. 1.076 in (27.3 mm) 20 items
    2. 1.306 in (33.2 mm) 25 items
    3. 1.345 in (34.2 mm) 70 items
    4. 1.700 in (43.2 mm) 90 items
    5. 2.035 in (51.7 mm) 132 items
    6. 2.413 in (61.3 mm) 157 items
    7. 3.235 in (82.2 mm) 182 items
    8. 3.431 in (87.1 mm) 45 items
    9. 3.439 in (87.4 mm) 45 items
    10. 3.808 in (96.7 mm) 45 items
    11. 3.816 in (96.9 mm) 45 items
    Static Torque
    1. 2.5 Nm 20 items
    2. 4.5 Nm 25 items
    3. 6.8 Nm 70 items
    4. 13.6 Nm 90 items
    5. 28.0 Nm 132 items
    6. 45.2 Nm 157 items
    7. 60.00 Nm 182 items
    8. 104.5 Nm 90 items
    9. 152 Nm 90 items
    Angular Misalignment
    1. 1.5° 205 items
    2. 2.0° 651 items
    Parallel Misalignment
    1. 0.10 mm 115 items
    2. 0.15 mm 90 items
    3. 0.25 mm 289 items
    4. 0.30 mm 362 items
    Axial Motion
    1. 0.20 mm 20 items
    2. 0.25 mm 25 items
    3. 0.30 mm 70 items
    4. 0.40 mm 90 items
    5. 0.50 mm 289 items
    6. 0.75 mm 182 items
    7. 0.76 mm 180 items
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