RULAND MANUFACTURING Jaw Coupling Hub: JC21 Coupling Size, 1 5/16 in Outside Dia, Inch
The RULAND MANUFACTURING JC21-8-A is a zero-backlash curved jaw coupling hub in the JC21 coupling size, made of inch-dimensioned aluminum with a 1 5/16 in outside diameter. This hub is designed for motion-control…
SKU 3G-OTH-134279
Also listed as: JC218A · JC21 8 A
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.
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Product Description
The RULAND MANUFACTURING JC21-8-A is a zero-backlash curved jaw coupling hub in the JC21 coupling size, made of inch-dimensioned aluminum with a 1 5/16 in outside diameter. This hub is designed for motion-control applications requiring precise torque transmission without backlash.
Frequently Asked Questions
What is a RULAND MANUFACTURING JC21-8-A jaw coupling hub used for?
The RULAND MANUFACTURING JC21-8-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. Common in packaging, robotics, and CNC machinery, this aluminum hub provides lightweight, corrosion-resistant performance in precision industrial applications.
What are the specifications of the RULAND MANUFACTURING JC21-8-A coupling hub?
The RULAND MANUFACTURING JC21-8-A is an inch-series, aluminum jaw coupling hub with a 1 5/16 in outside diameter. It is part of the JC21 coupling size family and is designed for zero-backlash curved jaw couplings. The manufacturer part number is JC21-8-A, and it is made by RULAND MANUFACTURING.
Where to buy RULAND MANUFACTURING JC21-8-A coupling hubs worldwide?
You can source the RULAND MANUFACTURING JC21-8-A jaw coupling hub through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we provide reliable sourcing for this RULAND MANUFACTURING component.
How to select the correct RULAND MANUFACTURING jaw coupling hub size?
To select the correct RULAND MANUFACTURING jaw coupling hub, match the shaft diameters and torque requirements of your application. The JC21-8-A has a 1 5/16 in outside diameter and is designed for inch-sized shafts. Ensure the hub bore fits your shaft snugly and consider the coupling's rated torque and misalignment capacity for reliable performance.
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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.
