About

Hubs

This section will allow you to select hubs to be used individually or as part of an assembly. Ruland manufactures oldham couplings with a proprietary hub machining process that combined with the anodized finish improves lubricity and allows 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

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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.

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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.
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Oldham Bundle







Products

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  1. Ruland MOCC33-16-A OD21/33-AT MOST33-14-A, Oldham Coupling Bundle
    MOCC33-16-A OD21/33-AT MOST33-14-A

    Starting at $10.84 ea

    In stock
    Ruland MOCC33-16-A OD21/33-AT MOST33-14-A, 16mm x 14mm Oldham Coupling Bundle, Aluminum, Clamp/Set Screw Style Hubs, 33.3mm OD, 47.6mm Length

    Starting at $10.84 ea

  2. Ruland MOCT33-15-A OD21/33-AT MOCT33-8-A, Oldham Coupling Bundle
    MOCT33-15-A OD21/33-AT MOCT33-8-A

    Starting at $10.84 ea

    In stock
    Ruland MOCT33-15-A OD21/33-AT MOCT33-8-A, 15mm x 8mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 33.3mm OD, 47.6mm Length

    Starting at $10.84 ea

  3. Ruland MOCC33-16-A OD21/33-AT OST21-8-A, Oldham Coupling Bundle
    MOCC33-16-A OD21/33-AT OST21-8-A

    Starting at $10.84 ea

    In stock
    Ruland MOCC33-16-A OD21/33-AT OST21-8-A, 16mm x 0.500" Oldham Coupling Bundle, Aluminum, Clamp/Set Screw Style Hubs, 1.313" (33.3mm) OD, 1.875", 47.6mm Length

    Starting at $10.84 ea

  4. Ruland MOCC41-18-A OD26/41-AT OCT26-6-A, Oldham Coupling Bundle
    MOCC41-18-A OD26/41-AT OCT26-6-A

    Starting at $13.52 ea

    In stock
    Ruland MOCC41-18-A OD26/41-AT OCT26-6-A, 18mm x 0.375" Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 1.625" (41.3mm) OD, 2.000", 50.8mm Length

    Starting at $13.52 ea

  5. Ruland OST26-12-A OD26/41-NL MOST41-11-A, Oldham Coupling Bundle
    OST26-12-A OD26/41-NL MOST41-11-A

    Starting at $17.78 ea

    In stock
    Ruland OST26-12-A OD26/41-NL MOST41-11-A, 0.750" x 11mm Oldham Coupling Bundle, Aluminum, Set Screw Style Hubs, 1.625" (41.3mm) OD, 2.000", 50.8mm Length

    Starting at $17.78 ea

  6. Ruland OST21-10-A OD21/33-NL OCC21-6-A, Oldham Coupling Bundle
    OST21-10-A OD21/33-NL OCC21-6-A

    Starting at $13.01 ea

    In stock
    Ruland OST21-10-A OD21/33-NL OCC21-6-A, 0.625" x 0.375" Oldham Coupling Bundle, Aluminum, Clamp/Set Screw Style Hubs, 1.313" OD, 1.875" Length

    Starting at $13.01 ea

  7. Ruland OST8-2-A OD8/13-AT, Oldham Coupling Bundle
    OST8-2-A OD8/13-AT

    Starting at $3.37 ea

    In stock
    Ruland OST8-2-A OD8/13-AT, 0.125" x 0.125" Oldham Coupling Bundle, Aluminum, Set Screw Style Hubs, 0.500" OD, 0.625" Length

    Starting at $3.37 ea

  8. Ruland MOST13-3-A OD8/13-AT, Oldham Coupling Bundle
    MOST13-3-A OD8/13-AT

    Starting at $3.37 ea

    In stock
    Ruland MOST13-3-A OD8/13-AT, 3mm x 3mm Oldham Coupling Bundle, Aluminum, Set Screw Style Hubs, 12.7mm OD, 15.9mm Length

    Starting at $3.37 ea

  9. Ruland OCT12-3-A OD12/19-AT, Oldham Coupling Bundle
    OCT12-3-A OD12/19-AT

    Starting at $4.03 ea

    In stock
    Ruland OCT12-3-A OD12/19-AT, 0.188" x 0.188" Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 0.750" OD, 1.000" Length

    Starting at $4.03 ea

  10. Ruland MOCT19-4-A OD12/19-AT, Oldham Coupling Bundle
    MOCT19-4-A OD12/19-AT

    Starting at $4.03 ea

    In stock
    Ruland MOCT19-4-A OD12/19-AT, 4mm x 4mm Oldham Coupling Bundle, Aluminum, Clamp Style Hubs, 19.1mm OD, 25.4mm Length

    Starting at $4.03 ea

  11. Ruland OST8-2-A OD8/13-AT MOST13-3-A, Oldham Coupling Bundle
    OST8-2-A OD8/13-AT MOST13-3-A

    Starting at $3.37 ea

    In stock
    Ruland OST8-2-A OD8/13-AT MOST13-3-A, 0.125" x 3mm Oldham Coupling Bundle, Aluminum, Set Screw Style Hubs, 0.500" (12.7mm) OD, 0.625", 15.9mm Length

    Starting at $3.37 ea

  12. Ruland OST12-3-A OD12/19-AT OCT12-3-A, Oldham Coupling Bundle
    OST12-3-A OD12/19-AT OCT12-3-A

    Starting at $4.03 ea

    In stock
    Ruland OST12-3-A OD12/19-AT OCT12-3-A, 0.188" x 0.188" Oldham Coupling Bundle, Aluminum, Clamp/Set Screw Style Hubs, 0.750" OD, 0.937" Length

    Starting at $4.03 ea

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