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 MJC70-30-A is a zero-backlash curved jaw coupling hub in the MJC70 coupling size, with a 69.9 mm outside diameter and made of aluminum. This metric component is designed for use in motion…

SKU 3G-OTH-134312

Also listed as: MJC7030A · MJC70 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
MJC70-30-A
Type
Metric, Aluminum
Outside Dia
69.9 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 MJC70-30-A is a zero-backlash curved jaw coupling hub in the MJC70 coupling size, with a 69.9 mm outside diameter and made of aluminum. This metric component is designed for use in motion control applications requiring precise torque transmission.

Frequently Asked Questions

What is the RULAND MANUFACTURING MJC70-30-A jaw coupling hub used for?

The RULAND MANUFACTURING MJC70-30-A is a zero-backlash curved jaw coupling hub used in motion control applications requiring precise torque transmission. It connects two shafts while accommodating minor misalignment, making it suitable for servo motors, encoders, and linear actuators in industrial automation.

What are the specifications of the RULAND MANUFACTURING MJC70-30-A?

The RULAND MANUFACTURING MJC70-30-A is a metric aluminum jaw coupling hub with MJC70 coupling size and a 69.9 mm outside diameter. It is designed for zero-backlash curved jaw coupling systems, ensuring accurate torque transmission in motion control applications.

Where to buy the RULAND MANUFACTURING MJC70-30-A worldwide?

3G Electric supplies the RULAND MANUFACTURING MJC70-30-A worldwide, handling full logistics and customs clearance. As a global industrial solutions provider, we source and deliver this zero-backlash curved jaw coupling hub to support motion control applications across 14 industrial departments.

How to select the correct RULAND MANUFACTURING jaw coupling hub size?

To select the correct RULAND MANUFACTURING jaw coupling hub, match the coupling size (e.g., MJC70) to your shaft diameters and torque requirements. The 69.9 mm outside diameter and aluminum construction of the MJC70-30-A suit metric systems. Consult the manufacturer's catalog for bore and keyway compatibility.

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 from RULAND MANUFACTURING is designed for industrial power transmission applications requiring precise torque transfer and vibration damping. The hub is made of aluminum with a 69.9 mm outside diameter and metric dimensions, suitable for use in motion control, packaging, and conveyor systems
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub from RULAND MANUFACTURING is designed for industrial power transmission applications requiring precise torque transfer and vibration damping. The hub is made of aluminum with a 69.9 mm outside diameter and metric dimensions, suitable for use in motion control, packaging, and conveyor systems
This zero-backlash curved jaw coupling hub is made of aluminum with a 69.9 mm outside diameter. It is designed for metric applications and belongs to the MJC70 coupling size series. Used in motion-control systems to connect shafts while accommodating misalignment and transmitting torque
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 69.9 mm outside diameter. It is designed for metric applications and belongs to the MJC70 coupling size series. Used in motion-control systems to connect shafts while accommodating misalignment and transmitting torque
This zero-backlash curved jaw coupling hub from RULAND MANUFACTURING is made of aluminum with a 79.4 mm outside diameter. Designed for metric applications, it is used in motion-control systems to connect shafts while compensating for misalignment and transmitting torque accurately
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub from RULAND MANUFACTURING is made of aluminum with a 79.4 mm outside diameter. Designed for metric applications, it is used in motion-control systems to connect shafts while compensating for misalignment and transmitting torque accurately
This metric aluminum hub is part of a zero-backlash curved jaw coupling system, sized MJC80 with a 79.4 mm outside diameter. It is used in motion control applications where precise torque transmission and misalignment compensation are required, such as connecting shafts in servo motors, encoders, and linear actuators
RULAND MANUFACTURING
This metric aluminum hub is part of a zero-backlash curved jaw coupling system, sized MJC80 with a 79.4 mm outside diameter. It is used in motion control applications where precise torque transmission and misalignment compensation are required, such as connecting shafts in servo motors, encoders, and linear actuators
This zero-backlash curved jaw coupling hub is made of aluminum with a 69.9 mm outside diameter. It is designed for use with matching spider inserts to form a flexible coupling that transmits torque while accommodating misalignment. Typical applications include connecting shafts in motion control systems such as servo motors and encoders
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 69.9 mm outside diameter. It is designed for use with matching spider inserts to form a flexible coupling that transmits torque while accommodating misalignment. Typical applications include connecting shafts in motion control systems such as servo motors and encoders
This zero-backlash curved jaw coupling hub is made of aluminum with a 79.4 mm outside diameter. It is designed for metric systems and used in motion control applications such as servo motors, encoders, and linear actuators where precise torque transmission and vibration damping are required
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub is made of aluminum with a 79.4 mm outside diameter. It is designed for metric systems and used in motion control applications such as servo motors, encoders, and linear actuators where precise torque transmission and vibration damping are required

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