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RULAND MANUFACTURING MJS51-20-A Zero-Backlash Curved Jaw Coupling Hub - Zero-Backlash Curved Jaw Coupling Hubs
RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

RULAND MANUFACTURING MJS51-20-A Zero-Backlash Curved Jaw Coupling Hub

The RULAND MANUFACTURING MJS51-20-A is a zero-backlash curved jaw coupling hub in the MJS51 coupling size, made of metric aluminum with a 50.8 mm outside diameter. This component is designed for motion control…

SKU 3G-OTH-134231

Also listed as: MJS5120A · MJS51 20 A

Brand
RULAND MANUFACTURING
Item
MJS51-20-A Zero-Backlash Curved Jaw Coupling Hub
Category
Zero-Backlash Curved Jaw Coupling Hubs
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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
MJS51-20-A
Type
Metric, Aluminum
Outside Dia
50.8 mm

Technical Documents

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RULAND MANUFACTURING Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING MJS51-20-A is a zero-backlash curved jaw coupling hub in the MJS51 coupling size, made of metric aluminum with a 50.8 mm outside diameter. This component is designed for motion control applications requiring precise torque transmission and misalignment accommodation.

Frequently Asked Questions

What is a Ruland Manufacturing MJS51-20-A jaw coupling hub used for?

The Ruland Manufacturing MJS51-20-A 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, making it ideal for precision automation, packaging, and robotics applications.

What are the specifications of the Ruland Manufacturing MJS51-20-A coupling hub?

The Ruland Manufacturing MJS51-20-A is a metric, aluminum jaw coupling hub with a 50.8 mm outside diameter and MJS51 coupling size. It is designed for zero-backlash curved jaw couplings, providing reliable torque transmission and misalignment accommodation in industrial machinery.

Where to buy a Ruland Manufacturing MJS51-20-A coupling hub worldwide?

You can source the Ruland Manufacturing MJS51-20-A coupling hub through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations, ensuring you receive the correct Ruland component for your application.

How to select the correct Ruland Manufacturing jaw coupling hub size?

To select the correct Ruland Manufacturing jaw coupling hub, match the outside diameter (50.8 mm for MJS51) and bore size to your shaft dimensions. Ensure the hub material (aluminum) suits your torque and environmental needs. Ruland hubs are designed for zero-backlash curved jaw couplings, so verify compatibility with your existing coupling spider.

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.

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Compatible alternatives & equivalents

Cross-referenced by specification & description
Metric aluminum hub for MJS51 coupling size, 50.8 mm outside diameter. Used in motion control and power transmission to connect shafts while accommodating misalignment and transmitting torque without backlash
RULAND MANUFACTURING
Metric aluminum hub for MJS51 coupling size, 50.8 mm outside diameter. Used in motion control and power transmission to connect shafts while accommodating misalignment and transmitting torque without backlash
RULAND MANUFACTURING Jaw Coupling Hub: MJS51 Coupling Size, 50.8 mm Outside Dia, Metric, Aluminum (MPN MJS51-14-A)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Hub: MJS51 Coupling Size, 50.8 mm Outside Dia, Metric, Aluminum (MPN MJS51-14-A)
This zero-backlash curved jaw coupling hub is made of metric aluminum with a 50.8 mm outside diameter. It is designed for motion control applications requiring precise torque transmission and accommodation of shaft misalignment. Commonly used in servo motors, encoders, and precision positioning equipment
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 motion control applications requiring precise torque transmission and accommodation of shaft misalignment. Commonly used in servo motors, encoders, and precision positioning equipment
Metric aluminum hub for zero-backlash curved jaw couplings. Outside diameter 57.2 mm. Used to connect rotating 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 rotating shafts in motion-control systems, compensating for misalignment while transmitting torque
Metric aluminum hub for MJS51 coupling size, 50.8 mm outside diameter. Designed for zero-backlash curved jaw couplings to connect rotating shafts while dampening vibration and accommodating minor misalignment. Suitable for motion control, packaging, and automation equipment requiring precise torque transmission
RULAND MANUFACTURING
Metric aluminum hub for MJS51 coupling size, 50.8 mm outside diameter. Designed for zero-backlash curved jaw couplings to connect rotating shafts while dampening vibration and accommodating minor misalignment. Suitable for motion control, packaging, and automation equipment requiring precise torque transmission
This zero-backlash curved jaw coupling hub from Ruland Manufacturing is designed for the MJS51 coupling series. It is made of aluminum with a 50.8 mm outside diameter and metric dimensions. Used in motion-control systems to connect shafts while compensating for minor misalignment and transmitting torque
RULAND MANUFACTURING
This zero-backlash curved jaw coupling hub from Ruland Manufacturing is designed for the MJS51 coupling series. It is made of aluminum with a 50.8 mm outside diameter and metric dimensions. Used in motion-control systems to connect shafts while compensating for minor misalignment and transmitting torque

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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
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This zero-backlash curved jaw coupling hub is part of the MJC25 coupling size series. It is made of metric aluminum with a 25.4 mm outside diameter. Designed for motion control applications, it transmits torque without backlash while accommodating misalignment between connected shafts
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This zero-backlash curved jaw coupling hub from RULAND MANUFACTURING is made of metric aluminum with a 41.3 mm outside diameter. It is designed for the MJS41 coupling size and connects two shafts in motion-control systems, compensating for minor misalignment while transmitting torque. Commonly used in servo motors, encoders, and precision industrial machinery where accurate positioning and vibration damping are required
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