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    JUMP TO: About Why Ruland Custom Designs Products

    About

    Hubs

    This section will allow you to select hubs to be used individually or as part of an assembly. Ruland manufactures oldham couplings in aluminum with an anodized finish for improved lubricity and stainless steel for corrosive applications. Hubs are manufactured with a proprietary machining process that creates a smooth interaction between the hub tenons and disk allowing for the longest service life in the industry. Torque transmission is achieved by mating the slots on the center disk to the drive tenons on each hub. Oldham couplings can help protect expensive machine components by acting as a torque limiter during overload. The disc breaks cleanly and does not allow for any power transmission. Oldham couplings are also electrically isolating since disks are non-conductive

    EXPLORE >>
    Hubs
    Disks

    This section will allow you to select disks to be used individually or as part of an assembly. Ruland offers users the ability to tailor the performance of oldham couplings to match their application needs as disks are available in three materials, acetal for high torsional stiffness and zero-backlash, nylon for shock absorption and noise reduction, and PEEK for high temperature and low outgassing. The slots of the disk mate onto the tenons of the hub with a slight press fit to allow the coupling to operate with zero backlash. In the event of disk wear or failure, the disk can be easily replaced and the oldham coupling's original performance restored. Disks with a center hole are available upon request to allow full shaft penetration.

    EXPLORE >>
    Disks
    Oldham Bundle
    This section will allow you to select the components to create a complete coupling. Please note that all orders ship unassembled. When you are ordering or downloading CAD all components are individual. They must be specified on any purchase order with a minimum of two part numbers. The combinations listed are a complete offering combining all available hubs and disks.
    EXPLORE >>
    Oldham Bundle

    Why Ruland Oldham Couplings?

    • Longest lifespan in the industry because of a proprietary hub machining process that leaves a smoother surface interaction between the hub tenons and disks.
    • Speeds up to 4,500 RPM with reduced vibration due to the coupling's balanced design.
    • Oldham couplings are thoughtfully designed and carefully made from meticulously selected North American bar stock in our Marlborough, MA, USA advanced manufacturing facility.
    • Over 25,000 customizable configurations with standard off the shelf parts where you can choose:
      • Aluminum or stainless steel hubs in clamp or set screw style.
      • Inch or metric bores, with or without keyways.
      • Disks in acetal, Nylon or PEEK to tailor coupling performance to application needs.
      • True ratings based on actual testing.




    CUSTOM DESIGNS

    As a service to our customers, we offer our vast manufacturing experience and talents to meet special needs with custom parts. Our in-house engineering team has extensive experience designing and custom engineering solutions to meet your requirements. If you do not see what you are looking for in our standard line, please inquire about custom options.
    Examples of Custom Work
    • Stainless steel oldham couplings
    • Two-piece oldham coupling hubs
    • Center disks with special bores
    • Special bore sizes and geometry
    • Special lengths, widths, and outside diameters
    • Different materials, finishes, or colors
    • Custom hardware requests
    • And Many Others... Please Contact Us for More Information

    Products

    View as Grid Table

    Items 1-12 of 27970

    Set Descending Direction
    1. Ruland MOCC25-10-A, Oldham Coupling Hub
      MOCC25-10-A
      As low as $22.75 $33.37
      Ruland MOCC25-10-A, 10mm Oldham Coupling Hub, Aluminum, Clamp Style With Keyway, 25.4mm OD, 11.9mm Length
      Add to Compare
    2. Ruland MOCC25-10-A OD16/25-AT, Oldham Coupling Bundle
      MOCC25-10-A OD16/25-AT
      $29.65 - $76.86
      Ruland MOCC25-10-A OD16/25-AT, 10mm x 10mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 31.8mm Length
      Add to Compare
    3. Ruland MOCC25-10-A OD16/25-AT MOCC25-7-A, Oldham Coupling Bundle
      MOCC25-10-A OD16/25-AT MOCC25-7-A
      $52.40 - $76.86
      Ruland MOCC25-10-A OD16/25-AT MOCC25-7-A, 10mm x 7mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 31.8mm Length
      Add to Compare
    4. Ruland MOCC25-10-A OD16/25-AT MOCC25-8-A, Oldham Coupling Bundle
      MOCC25-10-A OD16/25-AT MOCC25-8-A
      $52.40 - $76.86
      Ruland MOCC25-10-A OD16/25-AT MOCC25-8-A, 10mm x 8mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 31.8mm Length
      Add to Compare
    5. Ruland MOCC25-10-A OD16/25-AT MOCC25-9-A, Oldham Coupling Bundle
      MOCC25-10-A OD16/25-AT MOCC25-9-A
      $52.40 - $76.86
      Ruland MOCC25-10-A OD16/25-AT MOCC25-9-A, 10mm x 9mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 31.8mm Length
      Add to Compare
    6. Ruland MOCC25-10-A OD16/25-AT MOCT25-10-A, Oldham Coupling Bundle
      MOCC25-10-A OD16/25-AT MOCT25-10-A
      $46.50 - $68.20
      Ruland MOCC25-10-A OD16/25-AT MOCT25-10-A, 10mm x 10mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 31.8mm Length
      Add to Compare
    7. Ruland MOCC25-10-A OD16/25-AT MOCT25-6-A, Oldham Coupling Bundle
      MOCC25-10-A OD16/25-AT MOCT25-6-A
      $46.50 - $68.20
      Ruland MOCC25-10-A OD16/25-AT MOCT25-6-A, 10mm x 6mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 31.8mm Length
      Add to Compare
    8. MOCC25-10-A OD16/25-AT MOCT25-6/5.5D-A
      MOCC25-10-A OD16/25-AT MOCT25-6/5.5D-A
      $50.89 - $95.61
      Ruland MOCC25-10-A OD16/25-AT MOCT25-6/5.5D-A, 10mm x 6/5.5Dmm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
      Add to Compare
    9. Ruland MOCC25-10-A OD16/25-AT MOCT25-7-A, Oldham Coupling Bundle
      MOCC25-10-A OD16/25-AT MOCT25-7-A
      $46.50 - $68.20
      Ruland MOCC25-10-A OD16/25-AT MOCT25-7-A, 10mm x 7mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 31.8mm Length
      Add to Compare
    10. MOCC25-10-A OD16/25-AT MOCT25-7/6.5D-A
      MOCC25-10-A OD16/25-AT MOCT25-7/6.5D-A
      $50.89 - $95.61
      Ruland MOCC25-10-A OD16/25-AT MOCT25-7/6.5D-A, 10mm x 7/6.5Dmm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
      Add to Compare
    11. Ruland MOCC25-10-A OD16/25-AT MOCT25-8-A, Oldham Coupling Bundle
      MOCC25-10-A OD16/25-AT MOCT25-8-A
      $46.50 - $68.20
      Ruland MOCC25-10-A OD16/25-AT MOCT25-8-A, 10mm x 8mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 31.8mm Length
      Add to Compare
    12. MOCC25-10-A OD16/25-AT MOCT25-8/7.5D-A
      MOCC25-10-A OD16/25-AT MOCT25-8/7.5D-A
      $50.89 - $95.61
      Ruland MOCC25-10-A OD16/25-AT MOCT25-8/7.5D-A, 10mm x 8/7.5Dmm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.000" (25.4mm) OD, 1.250" (31.8mm) Length
      Add to Compare
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    Shopping Options
    Bore Type
    Style
    1. Clamp 9361 items
    2. Clamp/ Set Screw 12049 items
    3. Set Screw 6541 items
    4. Insert 19 items
    Unit of Measurement
    1. Inch 2493 items
    2. Inch/Metric 10932 items
    3. Metric 14545 items
    Bore (B1)
    1. 0.1250 in 17 items
    2. 0.1875 in 78 items
    3. 0.2500 in 238 items
    4. 0.3125 in 336 items
    5. 0.3750 in 922 items
    6. 0.5000 in 2112 items
    7. 0.6250 in 1992 items
    8. 0.7500 in 1476 items
    9. 0.8750 in 208 items
    10. 1.0000 in 256 items
    11. 1.1250 in 136 items
    12. 1.2500 in 75 items
    13. 3 mm 8 items
    14. 4 mm 45 items
    15. 5 mm 106 items
    16. 6 mm 169 items
    17. 7 mm 324 items
    18. 8 mm 632 items
    19. 9 mm 628 items
    20. 10 mm 1200 items
    21. 11 mm 1498 items
    22. 12 mm 1796 items
    23. 13 mm 1366 items
    24. 14 mm 1582 items
    25. 15 mm 1789 items
    26. 16 mm 2224 items
    27. 17 mm 1140 items
    28. 18 mm 1252 items
    29. 19 mm 1364 items
    30. 20 mm 1588 items
    31. 22 mm 192 items
    32. 24 mm 224 items
    33. 25 mm 240 items
    34. 28 mm 128 items
    35. 30 mm 144 items
    36. 3/2.5D mm 7 items
    37. 4/3.5D mm 16 items
    38. 5/4.5D mm 47 items
    39. 6/5.5D mm 54 items
    40. 7/6.5D mm 77 items
    41. 8/7.5D mm 104 items
    42. 9/8.5D mm 67 items
    43. 10/9.5D mm 94 items
    Small Bore (B2)
    1. 0.1250 in 45 items
    2. 0.1875 in 205 items
    3. 0.2500 in 555 items
    4. 0.3125 in 981 items
    5. 0.3750 in 2766 items
    6. 0.5000 in 1916 items
    7. 0.6250 in 1020 items
    8. 0.7500 in 292 items
    9. 0.8750 in 88 items
    10. 1.0000 in 40 items
    11. 1.1250 in 18 items
    12. 1.2500 in 2 items
    13. 3 mm 54 items
    14. 4 mm 243 items
    15. 5 mm 180 items
    16. 6 mm 625 items
    17. 7 mm 906 items
    18. 8 mm 1812 items
    19. 9 mm 1582 items
    20. 10 mm 2496 items
    21. 11 mm 2196 items
    22. 12 mm 2042 items
    23. 13 mm 1486 items
    24. 14 mm 1423 items
    25. 15 mm 1216 items
    26. 16 mm 806 items
    27. 17 mm 628 items
    28. 18 mm 516 items
    29. 19 mm 404 items
    30. 20 mm 180 items
    31. 22 mm 104 items
    32. 24 mm 72 items
    33. 25 mm 56 items
    34. 28 mm 26 items
    35. 30 mm 10 items
    36. 3/2.5D mm 30 items
    37. 4/3.5D mm 21 items
    38. 5/4.5D mm 48 items
    39. 6/5.5D mm 144 items
    40. 7/6.5D mm 108 items
    41. 8/7.5D mm 78 items
    42. 9/8.5D mm 66 items
    43. 10/9.5D mm 39 items
    Keyway
    1. No 21686 items
    2. Yes 19005 items
    Rated Torque
    1. 1.5 in-lb (0.17 Nm) 95 items
    2. 5 in-lb (0.57 Nm) 332 items
    3. 6 in-lb (0.68 Nm) 188 items
    4. 10 in-lb (1.13 Nm) 1672 items
    5. 18 in-lb (2.03 Nm) 2557 items
    6. 20 in-lb (2.25 Nm) 664 items
    7. 32 in-lb (3.65 Nm) 3661 items
    8. 42 in-lb (4.75 Nm) 3342 items
    9. 70 in-lb (8.00 Nm) 5112 items
    10. 130 in-lb (14.75 Nm) 7322 items
    11. 250 in-lb (28.25 Nm) 595 items
    12. 375 in-lb (42.50 Nm) 704 items
    13. Rating Coming Soon 1300 items
    Material
    1. 303 Stainless Steel 12186 items
    2. Acetal 9612 items
    3. Aluminum 15765 items
    4. Nylon 8317 items
    5. PEEK 9615 items
    Outer Diameter (OD)
    1. 0.500 in (12.7 mm) 301 items
    2. 0.750 in (19.1 mm) 1032 items
    3. 1.000 in (25.4 mm) 5095 items
    4. 1.313 in (33.3 mm) 7793 items
    5. 1.625 in (41.3 mm) 11103 items
    6. 2.000 in (50.8 mm) 1225 items
    7. 2.250 in (57.2 mm) 1445 items
    Length (L)
    1. 0.625 in (15.9 mm) 298 items
    2. 0.875 in (22.2 mm) 685 items
    3. 0.937 in (23.8 mm) 393 items
    4. 1.000 in (25.4 mm) 797 items
    5. 1.125 in (28.6 mm) 2805 items
    6. 1.189 in (30.2 mm) 2439 items
    7. 1.250 in (31.8 mm) 4520 items
    8. 1.875 in (47.6 mm) 7790 items
    9. 2.000 in (50.8 mm) 11100 items
    10. 2.350 in (59.7 mm) 1223 items
    11. 3.100 in (78.7 mm) 1443 items
    Parallel Misalignment
    1. 0.004 in (0.10 mm) 301 items
    2. 0.008 in (0.20 mm) 13896 items
    3. 0.010 in (0.25 mm) 13773 items
    Axial Motion
    1. 0.004 in (0.10 mm) 6428 items
    2. 0.006 in (0.15 mm) 18896 items
    3. 0.008 in (0.20 mm) 2670 items
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