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

RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric - Zero-Backlash Curved Jaw Coupling Hubs
RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric

The RULAND MANUFACTURING MJC80 is a zero-backlash curved jaw coupling hub with a 79.4 mm outside diameter, made of aluminum. It is designed for metric applications and is identified by manufacturer part number…

SKU 3G-OTH-134273

Also listed as: MJCC8045A · MJCC80 45 A

Brand
RULAND MANUFACTURING
Item
Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric
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
MJCC80-45-A
Type
Metric, Aluminum
Outside Dia
79.4 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 MJC80 is a zero-backlash curved jaw coupling hub with a 79.4 mm outside diameter, made of aluminum. It is designed for metric applications and is identified by manufacturer part number MJCC80-45-A.

Frequently Asked Questions

What is the RULAND MANUFACTURING MJC80 jaw coupling hub used for?

The RULAND MANUFACTURING MJC80 is a zero-backlash curved jaw coupling hub used to connect two shafts in motion-control systems, such as servo motors and encoders. It accommodates misalignment while transmitting torque smoothly. Common in packaging, robotics, and machine-tool applications, it is made of aluminum for lightweight, corrosion-resistant performance.

What are the specifications of the RULAND MANUFACTURING MJCC80-45-A?

The RULAND MANUFACTURING MJCC80-45-A is a metric, aluminum jaw coupling hub with a 79.4 mm outside diameter. It is part of the MJC80 coupling size series and is designed for zero-backlash curved jaw couplings. The manufacturer part number is MJCC80-45-A, and it is suitable for precision motion-control applications.

Where to buy the RULAND MANUFACTURING MJC80 coupling hub worldwide?

You can source the RULAND MANUFACTURING MJC80 coupling hub 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; we supply genuine RULAND MANUFACTURING components to customers worldwide.

How to select the correct RULAND MANUFACTURING jaw coupling hub?

To select the correct RULAND MANUFACTURING jaw coupling hub, match the coupling size (e.g., MJC80) to your shaft diameters and torque requirements. Verify the outside diameter (79.4 mm for the MJCC80-45-A) and material (aluminum for low inertia). Ensure the hub type (curved jaw, zero-backlash) fits your application's misalignment and precision needs.

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
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJCC80-40-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJCC80-40-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJC80-45-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJC80-45-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJC80-40-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJC80-40-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJC80-35-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJC80-35-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJC80-25-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJC80-25-A)
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJCC80-35-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJC80 Coupling Size, 79.4 mm Outside Dia, Metric, Aluminum (MPN MJCC80-35-A)

More from RULAND MANUFACTURING

View all RULAND MANUFACTURING parts
This aluminum zero-backlash curved jaw coupling hub has a 1 5/16 in outside diameter and is designed for inch-series JC21 couplings. It connects two shafts in motion-control systems, accommodating misalignment and dampening vibration in industrial machinery, packaging equipment, and servo-drive applications. The aluminum construction provides low inertia for high-speed operation
RULAND MANUFACTURING
This aluminum zero-backlash curved jaw coupling hub has a 1 5/16 in outside diameter and is designed for inch-series JC21 couplings. It connects two shafts in motion-control systems, accommodating misalignment and dampening vibration in industrial machinery, packaging equipment, and servo-drive applications. The aluminum construction provides low inertia for high-speed operation
This inch-series aluminum hub is designed for zero-backlash curved jaw couplings, providing precise torque transmission in motion-control applications. With a 1 5/8 in outside diameter, it accommodates misalignment and dampens vibration in industrial machinery, pumps, and gearboxes
RULAND MANUFACTURING
This inch-series aluminum hub is designed for zero-backlash curved jaw couplings, providing precise torque transmission in motion-control applications. With a 1 5/8 in outside diameter, it accommodates misalignment and dampens vibration in industrial machinery, pumps, and gearboxes
Inch-series aluminum hub for zero-backlash curved jaw couplings. Outside diameter 2 1/4 in. Designed for motion-control applications requiring precise torque transmission and misalignment compensation
RULAND MANUFACTURING
Inch-series aluminum hub for zero-backlash curved jaw couplings. Outside diameter 2 1/4 in. Designed for motion-control applications requiring precise torque transmission and misalignment compensation
Metric aluminum zero-backlash curved jaw coupling hub with 15.1 mm outside diameter. Designed for motion control applications requiring precise torque transmission and accommodation of angular and parallel misalignment
RULAND MANUFACTURING
Metric aluminum zero-backlash curved jaw coupling hub with 15.1 mm outside diameter. Designed for motion control applications requiring precise torque transmission and accommodation of angular and parallel misalignment
This zero-backlash curved jaw coupling hub is made of aluminum with a 41.3 mm outside diameter. It is designed for metric shafts and accommodates misalignment while transmitting torque in motion-control systems such as servo motors and encoders. Commonly used in industrial automation, packaging, and robotics
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 shafts and accommodates misalignment while transmitting torque in motion-control systems such as servo motors and encoders. Commonly used in industrial automation, packaging, and robotics
This zero-backlash curved jaw coupling hub is made of aluminum with a 3/4 in outside diameter and inch dimensions. It is designed for motion control applications requiring precise torque transmission without backlash, such as connecting rotating shafts in servo motors, encoders, and precision indexing equipment
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 3/4 in outside diameter and inch dimensions. It is designed for motion control applications requiring precise torque transmission without backlash, such as connecting rotating shafts in servo motors, encoders, and precision indexing equipment
This inch-series curved jaw coupling hub is made of aluminum with an outside diameter of 1 5/8 in. Designed for zero-backlash torque transmission, it accommodates misalignment and dampens vibration in power transmission systems such as industrial machinery, pumps, and gearboxes
RULAND MANUFACTURING
This inch-series curved jaw coupling hub is made of aluminum with an outside diameter of 1 5/8 in. Designed for zero-backlash torque transmission, it accommodates misalignment and dampens vibration in power transmission systems such as industrial machinery, pumps, and gearboxes
Aluminum inch hub with 2 1/4 in outside diameter for JC36 coupling size. Designed for zero-backlash curved jaw couplings to connect shafts in power transmission systems, accommodating misalignment while transmitting torque
RULAND MANUFACTURING
Aluminum inch hub with 2 1/4 in outside diameter for JC36 coupling size. Designed for zero-backlash curved jaw couplings to connect shafts in power transmission systems, accommodating misalignment while transmitting torque