RULAND MANUFACTURINGZero-Backlash Curved Jaw Coupling Hubs

RULAND MANUFACTURING Jaw Coupling Hub: JC44 Coupling Size, 2 3/4 in Outside Dia, Inch

The RULAND MANUFACTURING Jaw Coupling Hub, model JC44 (MPN JCC44-20-A), is a zero-backlash curved jaw coupling hub with a 2 3/4 in outside diameter, made of aluminum. It is designed for inch-size applications and is…

SKU 3G-OTH-134270

Also listed as: JCC4420A · JCC44 20 A

Brand

RULAND MANUFACTURING

Item

Jaw Coupling Hub: JC44 Coupling Size, 2 3/4 in Outside Dia, Inch

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

RULAND MANUFACTURING

Manufacturer Part Number

JCC44-20-A 

Type

Inch, Aluminum 

Outside Dia

2 3/4 in 

Technical Documents

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RULAND MANUFACTURING Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the RULAND MANUFACTURING Jaw Coupling Hub JC44 used for?

The RULAND MANUFACTURING Jaw Coupling Hub JC44 is used to connect two shafts in power transmission systems while accommodating minor misalignment. Its zero-backlash curved jaw design makes it suitable for precision motion control applications in packaging, robotics, and machine tools.

What are the specifications of the RULAND MANUFACTURING Jaw Coupling Hub JC44?

The RULAND MANUFACTURING Jaw Coupling Hub JC44 (MPN JCC44-20-A) has a 2 3/4 in outside diameter and is made of aluminum. It is part of the JC44 coupling size series and is designed for inch-size shaft applications. The hub provides zero-backlash torque transmission.

Where to buy the RULAND MANUFACTURING Jaw Coupling Hub JC44 worldwide?

You can source the RULAND MANUFACTURING Jaw Coupling Hub JC44 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.

How to select the correct RULAND MANUFACTURING Jaw Coupling Hub size?

To select the correct RULAND MANUFACTURING Jaw Coupling Hub, match the hub bore size to your shaft diameter and confirm the outside diameter (2 3/4 in for JC44) fits your space. Ensure the coupling size (JC44) matches the mating spider and hub for proper zero-backlash performance.

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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