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Jaw Coupling Hubs

This section will allow you to select hubs to be used individually or as part of an assembly. Ruland jaw coupling hubs undergo a proprietary machining process to produce a curved jaw profile that press fits with the spider, assuring zero-backlash operation. The curved jaw profile concentrates the forces to the center of the spider’s limbs, improving the effectiveness of the elastomer material. Jaw couplings are considered fail safe because if the spider were to fail, the jaws of the two hubs interlock for direct power transmission, allowing the application to be safely shut down for maintenance.

Features

  • Zero backlash
  • Balanced design
  • Replaceable spider
  • RoHS3 and REACH Compliant
  • Maximum speed: 8,000 RPM
  • Bore tolerance:
    • +.001"/-.000"
    • +.03mm/-.00mm
  • Temperature Range:
    • -10°F to 180°F
    • -23°C to 82°C

Material

  • Aluminum hubs are standard
  • Stainless steel hubs are available upon request

Line Drawing

Line Drawing

How to Order

Complete Coupling: Jaw couplings are an assembly of two hubs and one spider

Hubs: Choose two hubs in inch or metric in any style with the same outside diameter

Spider: Choose spider to match performance criteria. The spider must have the same outside diameter as both hubs.

Each hub and spider is sold separately

Products

View as Grid Table

Items 385-402 of 402

Set Descending Direction
  1. Ruland MJSC51-18-A, Jaw Coupling Hub
    MJSC51-18-A
    As low as $59.67 $87.52
    Ruland MJSC51-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 50.8mm OD, 20.8mm Length
  2. Ruland MJSC51-19-A, Jaw Coupling Hub
    MJSC51-19-A
    As low as $59.67 $87.52
    Ruland MJSC51-19-A, 19mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 50.8mm OD, 20.8mm Length
  3. Ruland MJSC51-20-A, Jaw Coupling Hub
    MJSC51-20-A
    As low as $59.67 $87.52
    Ruland MJSC51-20-A, 20mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 50.8mm OD, 20.8mm Length
  4. Ruland MJSC51-22-A, Jaw Coupling Hub
    MJSC51-22-A
    As low as $59.67 $87.52
    Ruland MJSC51-22-A, 22mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 50.8mm OD, 20.8mm Length
  5. Ruland MJSC51-24-A, Jaw Coupling Hub
    MJSC51-24-A
    As low as $59.67 $87.52
    Ruland MJSC51-24-A, 24mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 50.8mm OD, 20.8mm Length
  6. Ruland MJSC51-25-A, Jaw Coupling Hub
    MJSC51-25-A
    As low as $59.67 $87.52
    Ruland MJSC51-25-A, 25mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 50.8mm OD, 20.8mm Length
  7. Ruland MJSC57-14-A, Jaw Coupling Hub
    MJSC57-14-A
    As low as $81.96 $120.21
    Ruland MJSC57-14-A, 14mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  8. Ruland MJSC57-15-A, Jaw Coupling Hub
    MJSC57-15-A
    As low as $81.96 $120.21
    Ruland MJSC57-15-A, 15mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  9. Ruland MJSC57-16-A, Jaw Coupling Hub
    MJSC57-16-A
    As low as $81.96 $120.21
    Ruland MJSC57-16-A, 16mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  10. Ruland MJSC57-17-A, Jaw Coupling Hub
    MJSC57-17-A
    As low as $81.96 $120.21
    Ruland MJSC57-17-A, 17mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  11. Ruland MJSC57-18-A, Jaw Coupling Hub
    MJSC57-18-A
    As low as $81.96 $120.21
    Ruland MJSC57-18-A, 18mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  12. Ruland MJSC57-19-A, Jaw Coupling Hub
    MJSC57-19-A
    As low as $81.96 $120.21
    Ruland MJSC57-19-A, 19mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  13. Ruland MJSC57-20-A, Jaw Coupling Hub
    MJSC57-20-A
    As low as $81.96 $120.21
    Ruland MJSC57-20-A, 20mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  14. Ruland MJSC57-22-A, Jaw Coupling Hub
    MJSC57-22-A
    As low as $81.96 $120.21
    Ruland MJSC57-22-A, 22mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  15. Ruland MJSC57-24-A, Jaw Coupling Hub
    MJSC57-24-A
    As low as $81.96 $120.21
    Ruland MJSC57-24-A, 24mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  16. Ruland MJSC57-25-A, Jaw Coupling Hub
    MJSC57-25-A
    As low as $81.96 $120.21
    Ruland MJSC57-25-A, 25mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  17. Ruland MJSC57-28-A, Jaw Coupling Hub
    MJSC57-28-A
    As low as $81.96 $120.21
    Ruland MJSC57-28-A, 28mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
  18. Ruland MJSC57-30-A, Jaw Coupling Hub
    MJSC57-30-A
    As low as $81.96 $120.21
    Ruland MJSC57-30-A, 30mm Jaw Coupling Hub, Aluminum, Set Screw Style With Keyway, 57.2mm OD, 28.7mm Length
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