RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

RULAND MANUFACTURING Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric

SKU 3G-OTH-134256

Brand

RULAND MANUFACTURING

Item

Jaw Coupling Hub: MJS19 Coupling Size, 19.1 mm Outside Dia, Metric

Technical Specifications

RULAND MANUFACTURING

Manufacturer Part Number

MJS19-8-A 

Type

Metric, Aluminum 

Outside Dia

19.1 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

Frequently Asked Questions

What is a Ruland MJS19-8-A zero-backlash curved jaw coupling hub used for?

The Ruland MJS19-8-A is a zero-backlash curved jaw coupling hub used to connect two rotating shafts in motion-control applications. It accommodates misalignment while transmitting torque, making it ideal for servo motors, encoders, and precision positioning systems in industrial automation.

What are the specifications of the Ruland MJS19-8-A coupling hub?

The Ruland MJS19-8-A is a metric aluminum jaw coupling hub with a 19.1 mm outside diameter. It is part of the MJS19 coupling size family and is designed for zero-backlash curved jaw couplings. The manufacturer part number is MJS19-8-A.

Where to buy a Ruland MJS19-8-A coupling hub worldwide?

3G Electric supplies the Ruland MJS19-8-A coupling hub to customers worldwide. We handle full logistics, customs clearance, and delivery to your site. Contact us for a quote and lead time on this precision motion-control component.

How to select the correct Ruland jaw coupling hub for my application?

To select the correct Ruland jaw coupling hub, match the bore size to your shaft diameter and confirm the outside diameter (19.1 mm for MJS19) fits your space. Ensure the hub material (aluminum) meets your torque and environmental requirements. Consult Ruland's catalog for misalignment ratings.

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 →