Due to Microsoft's discontinuation of updates, including security, certain functionality such as checkout and CAD may not work for you. We recommend using Google Chrome, Microsoft Edge, Firefox, or Safari to ensure full functionality.
Thank you - the Ruland team

Currency
USD - US Dollar
MENU

Carefully Made Shaft Collars

Shop
Account
Settings
  • Language:
    English
    • Currency
    USD - US Dollar

    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 457-480 of 856

    Set Descending Direction
    1. MBC80-45-40-A, Bellows Coupling
      MBC80-45-40-A
      As low as $225.76 $331.12
      Ruland MBC80-45-40-A, 45mm x 40mm Bellows Coupling, High Stiffness, Aluminum, 79.4mm, OD 96.9mm Length
      Add to Compare
    2. MBC80-45-42-A, Bellows Coupling
      MBC80-45-42-A
      As low as $225.76 $331.12
      Ruland MBC80-45-42-A, 45mm x 42mm Bellows Coupling, High Stiffness, Aluminum, 79.4mm, OD 96.9mm Length
      Add to Compare
    3. MBC80-45-45-A, Bellows Coupling
      MBC80-45-45-A
      As low as $225.76 $331.12
      Ruland MBC80-45-45-A, 45mm x 45mm Bellows Coupling, High Stiffness, Aluminum, 79.4mm, OD 96.9mm Length
      Add to Compare
    4. Ruland MBCK25-10-10-A, Bellows Coupling
      MBCK25-10-10-A
      As low as $106.35 $155.98
      Ruland MBCK25-10-10-A, 10mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    5. Ruland MBCK25-10-6-A, Bellows Coupling
      MBCK25-10-6-A
      As low as $106.35 $155.98
      Ruland MBCK25-10-6-A, 10mm x 6mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    6. Ruland MBCK25-10-7-A, Bellows Coupling
      MBCK25-10-7-A
      As low as $106.35 $155.98
      Ruland MBCK25-10-7-A, 10mm x 7mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    7. Ruland MBCK25-10-8-A, Bellows Coupling
      MBCK25-10-8-A
      As low as $106.35 $155.98
      Ruland MBCK25-10-8-A, 10mm x 8mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    8. Ruland MBCK25-10-9-A, Bellows Coupling
      MBCK25-10-9-A
      As low as $106.35 $155.98
      Ruland MBCK25-10-9-A, 10mm x 9mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    9. Ruland MBCK25-11-10-A, Bellows Coupling
      MBCK25-11-10-A
      As low as $106.35 $155.98
      Ruland MBCK25-11-10-A, 11mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    10. Ruland MBCK25-11-11-A, Bellows Coupling
      MBCK25-11-11-A
      As low as $106.35 $155.98
      Ruland MBCK25-11-11-A, 11mm x 11mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    11. Ruland MBCK25-11-6-A, Bellows Coupling
      MBCK25-11-6-A
      As low as $106.35 $155.98
      Ruland MBCK25-11-6-A, 11mm x 6mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    12. Ruland MBCK25-11-7-A, Bellows Coupling
      MBCK25-11-7-A
      As low as $106.35 $155.98
      Ruland MBCK25-11-7-A, 11mm x 7mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    13. Ruland MBCK25-11-8-A, Bellows Coupling
      MBCK25-11-8-A
      As low as $106.35 $155.98
      Ruland MBCK25-11-8-A, 11mm x 8mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    14. Ruland MBCK25-11-9-A, Bellows Coupling
      MBCK25-11-9-A
      As low as $106.35 $155.98
      Ruland MBCK25-11-9-A, 11mm x 9mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    15. Ruland MBCK25-12-10-A, Bellows Coupling
      MBCK25-12-10-A
      As low as $106.35 $155.98
      Ruland MBCK25-12-10-A, 12mm x 10mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    16. Ruland MBCK25-12-11-A, Bellows Coupling
      MBCK25-12-11-A
      As low as $106.35 $155.98
      Ruland MBCK25-12-11-A, 12mm x 11mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    17. Ruland MBCK25-12-12-A, Bellows Coupling
      MBCK25-12-12-A
      As low as $106.35 $155.98
      Ruland MBCK25-12-12-A, 12mm x 12mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    18. Ruland MBCK25-12-6-A, Bellows Coupling
      MBCK25-12-6-A
      As low as $106.35 $155.98
      Ruland MBCK25-12-6-A, 12mm x 6mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    19. Ruland MBCK25-12-7-A, Bellows Coupling
      MBCK25-12-7-A
      As low as $106.35 $155.98
      Ruland MBCK25-12-7-A, 12mm x 7mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    20. Ruland MBCK25-12-8-A, Bellows Coupling
      MBCK25-12-8-A
      As low as $106.35 $155.98
      Ruland MBCK25-12-8-A, 12mm x 8mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    21. Ruland MBCK25-12-9-A, Bellows Coupling
      MBCK25-12-9-A
      As low as $106.35 $155.98
      Ruland MBCK25-12-9-A, 12mm x 9mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    22. Ruland MBCK25-7-6-A, Bellows Coupling
      MBCK25-7-6-A
      As low as $106.35 $155.98
      Ruland MBCK25-7-6-A, 7mm x 6mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    23. Ruland MBCK25-7-7-A, Bellows Coupling
      MBCK25-7-7-A
      As low as $106.35 $155.98
      Ruland MBCK25-7-7-A, 7mm x 7mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    24. Ruland MBCK25-8-6-A, Bellows Coupling
      MBCK25-8-6-A
      As low as $106.35 $155.98
      Ruland MBCK25-8-6-A, 8mm x 6mm Bellows Coupling with Keyways, High Stiffness, Aluminum, 25.4mm, OD 34.2mm Length
      Add to Compare
    Page
    per page
     

    Browse By

    Filter
    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
    Compare Products
    1. Remove This Item
    Compare
    Clear All
    Select products to compare.
    My Favorites
    Last Added Items
    1. Add to Cart
      Remove This Item
    Go to My Favorites
    Add products to your favorites.
    © 2025 Ruland Manufacturing Co., Inc. All rights reserved Top