RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

RULAND MANUFACTURING Jaw Coupling Hub: JC21 Coupling Size, 1 5/16 in Outside Dia, Inch

SKU 3G-OTH-134254

Brand

RULAND MANUFACTURING

Item

Jaw Coupling Hub: JC21 Coupling Size, 1 5/16 in Outside Dia, Inch

Technical Specifications

RULAND MANUFACTURING

Manufacturer Part Number

JCC21-10-A 

Type

Inch, Aluminum 

Outside Dia

1 5/16 in 

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Technical Documents

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RULAND MANUFACTURING Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING Jaw Coupling Hub, model JCC21-10-A, is a zero-backlash curved jaw coupling hub in the JC21 coupling size. It features a 1 5/16 in outside diameter and is constructed from inch-sized aluminum. 3G Electric interprets customer demand and delivers this genuine industrial component across 14 departments, with specialist depth in combustion, pumps, and controls as an authorised distributor.

Frequently Asked Questions

What is a RULAND MANUFACTURING Jaw Coupling Hub used for?

A RULAND MANUFACTURING Jaw Coupling Hub, such as the JCC21-10-A, is used to connect two shafts in power transmission applications while accommodating minor misalignment. It is commonly found in pumps, gearboxes, and conveyor systems where zero-backlash curved jaw coupling hubs provide vibration damping and torque transmission.

What are the specifications of the RULAND MANUFACTURING JCC21-10-A?

The RULAND MANUFACTURING JCC21-10-A is a zero-backlash curved jaw coupling hub with a JC21 coupling size and a 1 5/16 in outside diameter. It is made of aluminum and has a manufacturer part number of JCC21-10-A. This inch-series hub is designed for use with matching spider inserts.

Where to buy RULAND MANUFACTURING coupling hubs worldwide?

You can source RULAND MANUFACTURING coupling hubs, including the JCC21-10-A, through 3G Electric. As a global industrial equipment distributor, 3G Electric handles logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this item.

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., JC21) to the required bore diameter and shaft keyway. Verify the outside diameter (1 5/16 in for the JCC21-10-A) and material (aluminum) suit your torque and environmental needs. Always consult the manufacturer's catalog for fitment.

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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