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

Jaw/Spider Couplings for Packaging Equipment

Zero-backlash jaw couplings are a three piece assembly comprised of two aluminum hubs mated together by a center polyurethane element called the “spider.” This multiple piece design allows for a highly customizable coupling that can easily combine clamp or set screw hubs with inch, metric, keyed, and keyless bores. Zero-backlash jaw couplings have a balanced design for reduced vibration at speeds of up to 8,000 RPM. Ruland offers spiders in three durometers – 98 Shore A for high torque and torsional stiffness, 92 Shore A for a balance of stiffness and compliance, and 85 Shore A for high levels of dampening – allowing packaging equipment manufacturers the ability to specify the performance that best meets application requirements. Zero-backlash jaw couplings are manufactured in our Marlborough, Massachusetts factory with bore sizes ranging from 1/8” to 1-1/4” or 3mm to 32mm.

Products

View as Grid Table

Items 337-354 of 354

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
Page
per page
© 2025 Ruland Manufacturing Co., Inc. All rights reserved Top