Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

RULAND MANUFACTURING Zero-Backlash Curved Jaw Coupling Hub - Zero-Backlash Curved Jaw Coupling Hubs
RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

RULAND MANUFACTURING Zero-Backlash Curved Jaw Coupling Hub

The RULAND MANUFACTURING MJCC57-30-A is a zero-backlash curved jaw coupling hub in the MJC57 coupling size, made of metric aluminum with a 57.2 mm outside diameter. This hub is designed for precision motion control…

SKU 3G-OTH-134379

Also listed as: MJCC5730A · MJCC57 30 A

Brand
RULAND MANUFACTURING
Item
Zero-Backlash Curved Jaw Coupling Hub
Category
Zero-Backlash Curved Jaw Coupling Hubs
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
MJCC57-30-A
Type
Metric, Aluminum
Outside Dia
57.2 mm

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

The RULAND MANUFACTURING MJCC57-30-A is a zero-backlash curved jaw coupling hub in the MJC57 coupling size, made of metric aluminum with a 57.2 mm outside diameter. This hub is designed for precision motion control applications requiring accurate torque transmission without backlash.

Frequently Asked Questions

What is a Ruland Manufacturing zero-backlash curved jaw coupling hub used for?

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.

What are the specifications of the Ruland MJCC57-30-A jaw coupling hub?

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.

Where to buy Ruland Manufacturing jaw coupling hubs worldwide?

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.

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

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.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
This zero-backlash curved jaw coupling hub is designed for use in motion control and automation systems. It connects two rotating shafts while damping vibration and accommodating minor misalignment. Made of metric aluminum with a 57.2 mm outside diameter, it is part of the MJC57 coupling size family
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is designed for use in motion control and automation systems. It connects two rotating shafts while damping vibration and accommodating minor misalignment. Made of metric aluminum with a 57.2 mm outside diameter, it is part of the MJC57 coupling size family
Metric aluminum hub for zero-backlash curved jaw couplings, with 57.2 mm outside diameter. Designed for motion control applications requiring precise torque transmission without backlash, commonly used in automation and packaging equipment
RULAND MANUFACTURING
Metric aluminum hub for zero-backlash curved jaw couplings, with 57.2 mm outside diameter. Designed for motion control applications requiring precise torque transmission without backlash, commonly used in automation and packaging equipment
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 57.2 mm outside diameter. It is designed for motion control applications requiring precise torque transmission without backlash, such as in packaging, robotics, and machine-tool drives
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 57.2 mm outside diameter. It is designed for motion control applications requiring precise torque transmission without backlash, such as in packaging, robotics, and machine-tool drives
This zero-backlash curved jaw coupling hub is designed for motion-control systems requiring precise torque transmission and misalignment compensation. Made of aluminum with a 57.2 mm outside diameter, it is suitable for applications such as packaging, robotics, and conveyors where vibration dampening is needed. The hub is part of the MJC57 coupling size series
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is designed for motion-control systems requiring precise torque transmission and misalignment compensation. Made of aluminum with a 57.2 mm outside diameter, it is suitable for applications such as packaging, robotics, and conveyors where vibration dampening is needed. The hub is part of the MJC57 coupling size series
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 57.2 mm outside diameter. It is designed for use in motion-control systems to connect shafts while accommodating misalignment and transmitting torque smoothly
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 57.2 mm outside diameter. It is designed for use in motion-control systems to connect shafts while accommodating misalignment and transmitting torque smoothly
Metric aluminum hub for zero-backlash curved jaw couplings. Outside diameter 57.2 mm. Used to connect shafts in motion control systems, compensating for misalignment while transmitting torque
RULAND MANUFACTURING
Metric aluminum hub for zero-backlash curved jaw couplings. Outside diameter 57.2 mm. Used to connect shafts in motion control systems, compensating for misalignment while transmitting torque

More from RULAND MANUFACTURING

View all RULAND MANUFACTURING parts
This inch-series aluminum hub is part of the JC32 coupling family, featuring a curved jaw design for zero-backlash torque transmission. With a 2-inch outside diameter, it is used in power transmission applications to connect shafts while accommodating minor misalignment and damping vibration
RULAND MANUFACTURING
This inch-series aluminum hub is part of the JC32 coupling family, featuring a curved jaw design for zero-backlash torque transmission. With a 2-inch outside diameter, it is used in power transmission applications to connect shafts while accommodating minor misalignment and damping vibration
Inch-series aluminum curved jaw coupling hub with 2 in outside diameter. Zero-backlash design for precision motion-control applications. Suitable for connecting shafts in servo motors, encoders, and other industrial machinery requiring vibration damping and misalignment accommodation
RULAND MANUFACTURING
Inch-series aluminum curved jaw coupling hub with 2 in outside diameter. Zero-backlash design for precision motion-control applications. Suitable for connecting shafts in servo motors, encoders, and other industrial machinery requiring vibration damping and misalignment accommodation
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 41.3 mm outside diameter. It is designed for use in motion control systems requiring precise torque transmission and misalignment accommodation, such as connecting servo motors and encoders
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 41.3 mm outside diameter. It is designed for use in motion control systems requiring precise torque transmission and misalignment accommodation, such as connecting servo motors and encoders
This zero-backlash curved jaw coupling hub is made of aluminum with a 41.3 mm outside diameter. It is designed for metric applications and fits the MJS41 coupling size. Used in motion-control systems to connect two shafts while compensating for minor misalignment and transmitting torque
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 41.3 mm outside diameter. It is designed for metric applications and fits the MJS41 coupling size. Used in motion-control systems to connect two shafts while compensating for minor misalignment and transmitting torque
This zero-backlash curved jaw coupling hub is made of aluminum with a 41.3 mm outside diameter. It is designed for use in motion-control systems to connect two shafts, compensating for minor misalignment while transmitting torque. Commonly applied in servo motors, encoders, and precision machinery
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 41.3 mm outside diameter. It is designed for use in motion-control systems to connect two shafts, compensating for minor misalignment while transmitting torque. Commonly applied in servo motors, encoders, and precision machinery
This zero-backlash curved jaw coupling hub is part of the JC32 coupling size series, with a 2-inch outside diameter. Made from aluminum, it is designed for inch-dimension shafts in motion-control applications requiring accurate torque transmission and accommodation of minor misalignment
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is part of the JC32 coupling size series, with a 2-inch outside diameter. Made from aluminum, it is designed for inch-dimension shafts in motion-control applications requiring accurate torque transmission and accommodation of minor misalignment
Metric aluminum hub for zero-backlash curved jaw couplings, with 15.1 mm outside diameter. Used in motion control systems to connect shafts while accommodating misalignment and transmitting torque without backlash. Suitable for servo motors, encoders, and precision positioning equipment
RULAND MANUFACTURING
Metric aluminum hub for zero-backlash curved jaw couplings, with 15.1 mm outside diameter. Used in motion control systems to connect shafts while accommodating misalignment and transmitting torque without backlash. Suitable for servo motors, encoders, and precision positioning equipment
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 50.8 mm outside diameter. It is designed for use in motion control, packaging, and automation equipment where precise torque transmission without play is required. The hub accommodates minor shaft misalignment while maintaining accurate positioning
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 50.8 mm outside diameter. It is designed for use in motion control, packaging, and automation equipment where precise torque transmission without play is required. The hub accommodates minor shaft misalignment while maintaining accurate positioning