RULAND MANUFACTURING Jaw Coupling Hub: MJC57 Coupling Size, 57.2 mm Outside Dia, Metric

A Ruland Manufacturing zero-backlash curved jaw coupling hub connects two shafts in motion-control applications, compensating for minor misalignment while transmitting torque. It is commonly used in servo motors, encoders, and precision positioning systems across industrial automation, packaging, and machine tool sectors.

The Ruland MJCC57-30-A is a metric aluminum jaw coupling hub with a 57.2 mm outside diameter. It is part of the MJC57 coupling size family and is designed for zero-backlash curved jaw coupling systems. The aluminum construction provides low inertia and corrosion resistance for light- to medium-duty applications.

3G Electric supplies Ruland Manufacturing jaw coupling hubs worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the MJCC57-30-A or other Ruland coupling components.

To select the correct Ruland jaw coupling hub, match the hub bore size to your shaft diameter, confirm the outside diameter (57.2 mm for MJC57 size), and verify torque and misalignment ratings. Aluminum hubs suit low-inertia applications; consult Ruland's technical data for specific load and speed limits.