RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

RULAND MANUFACTURING Jaw Coupling Hub: MJS57 Coupling Size, 57.2 mm Outside Dia, Metric

The RULAND MANUFACTURING Jaw Coupling Hub is a zero-backlash curved jaw coupling hub in the MJS57 coupling size, with a 57.2 mm outside diameter. This metric, aluminum hub (MPN MJSC57-19-A) is designed for motion…

SKU 3G-OTH-134262

Brand

RULAND MANUFACTURING

Item

Jaw Coupling Hub: MJS57 Coupling Size, 57.2 mm Outside Dia, Metric

Technical Specifications

RULAND MANUFACTURING

Manufacturer Part Number

MJSC57-19-A 

Type

Metric, Aluminum 

Outside Dia

57.2 mm 

View Full Spec Sheet

Technical Documents

No technical documents available for this product.

Request documentation →

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

RULAND MANUFACTURING Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is a RULAND MANUFACTURING MJS57 jaw coupling hub used for?

A RULAND MANUFACTURING MJS57 zero-backlash curved jaw coupling hub connects two shafts in motion-control systems, compensating for minor misalignment while transmitting torque. It is commonly used in servo motors, encoders, and precision industrial machinery where accurate positioning and vibration damping are required.

What are the specifications of the RULAND MANUFACTURING MJSC57-19-A coupling hub?

The RULAND MANUFACTURING MJSC57-19-A is a metric, aluminum zero-backlash curved jaw coupling hub. It has a 57.2 mm outside diameter and is part of the MJS57 coupling size. This hub is designed for use with matching spider inserts to form a complete jaw coupling assembly.

Where to buy RULAND MANUFACTURING MJSC57-19-A coupling hubs worldwide?

You can source RULAND MANUFACTURING MJSC57-19-A coupling hubs worldwide through 3G Electric. As a global industrial equipment distributor, 3G Electric handles full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time on this metric aluminum hub.

How to select the correct RULAND MANUFACTURING jaw coupling hub for an application?

To select the correct RULAND MANUFACTURING jaw coupling hub, match the hub bore size to your shaft diameter and confirm the outside diameter (57.2 mm for MJS57) fits your space. Consider torque requirements and misalignment tolerance. The aluminum MJSC57-19-A is suitable for lighter-duty, corrosion-resistant applications.

Used in

Common applications for RULAND MANUFACTURING

Automated packaging machinery — Ruland beam couplings (e.g., PSR20-8-5-A) for connecting servo motors to conveyor drive shafts.

CNC machine tools — Ruland rigid couplings (e.g., CLX-4-4-A) for precise alignment of ball screw assemblies.

Robotic arm joints — Ruland Oldham coupling hubs (e.g., OSC16-6-A) for accommodating axial motion in end-effector drives.

Pump and compressor systems — Ruland stainless steel shaft collars (e.g., CL-3-ST) for securing impeller shafts.

Printing press rollers — Ruland clamp-on beam couplings (e.g., PCR18-8-8-A) for synchronizing roller rotation with minimal backlash.

Material handling conveyors — Ruland set screw couplings (e.g., PSMR29-7-7-A) for linking gearboxes to drive rollers.

RULAND MANUFACTURING Products

3G Electric supplies RULAND MANUFACTURING zero-backlash curved jaw coupling hubs. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

Browse all RULAND MANUFACTURING products →Contact our engineers →