Send a part number, a photo, or a whole BOM — we supply it and stand behind it. EXW Singapore — collect from our office.

3G Electric
RULAND MANUFACTURING Zero-Backlash Curved Jaw Spider JD50/80-98R - Zero-Backlash Curved Jaw Spiders
RULAND MANUFACTURINGZero-Backlash Curved Jaw Spiders

RULAND MANUFACTURING Zero-Backlash Curved Jaw Spider JD50/80-98R

<p>This Ruland Manufacturing zero-backlash curved jaw spider, model JD50/80-98R, is a precision replacement part designed for JC50, JCC50, MJC80, and MJCC80 coupling sizes. It delivers 4.379 horsepower and is rated…

SKU 3G-OTH-138976

Also listed as: JD508098R · JD50 80 98R · JD50-80-98R

Brand
RULAND MANUFACTURING
Item
Zero-Backlash Curved Jaw Spider JD50/80-98R
Part Number
JD50/80-98R
Category
Zero-Backlash Curved Jaw Spiders
Available to Order
Also known as:JD50/80-98RRULAND MANUFACTURING
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.
EXW Singapore
Collect or forward from our office
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
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.

Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
JD50/80-98R
Type
: JC50/JCC50/MJC80/MJCC80 Coupling Size, Inch, 4.379 hp, 98A

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

<p>This Ruland Manufacturing zero-backlash curved jaw spider, model JD50/80-98R, is a precision replacement part designed for JC50, JCC50, MJC80, and MJCC80 coupling sizes. It delivers 4.379 horsepower and is rated 98A, ensuring reliable torque transmission in demanding industrial applications. The curved jaw design minimizes backlash, making it ideal for servo motors, encoders, and other precision motion control systems.</p><p>As a Singapore-based supplier, 3G Electric offers this spider with SGD quotes on request, handles GST for local buyers, and provides fast delivery across Singapore and Southeast Asia. Worldwide shipping is also available. Contact us for current pricing and availability.</p>

Frequently Asked Questions

What coupling sizes is the JD50/80-98R compatible with?

According to the data, the JD50/80-98R is designed for JC50, JCC50, MJC80, and MJCC80 coupling sizes.

What are the key specifications of this spider?

The JD50/80-98R has a horsepower rating of 4.379 hp and a durometer of 98A, indicating a harder material for higher torque applications.

Used in

Common applications for RULAND MANUFACTURING
Automation and robotics — Ruland PCMR22-8-6-A beam couplings for precise motion control with misalignment compensation.
Packaging machinery — Ruland JC12-4-A jaw coupling hubs for zero-backlash torque transmission in indexing systems.
CNC spindles — Ruland SPB-16-SS balanced shaft collars for high-speed rotating assemblies.
Medical equipment — Ruland MRSC25-10-5-A slit couplings for compact, precise shaft connections.
Conveyor systems — Ruland MCL-25-FZ steel shaft collars for secure positioning of components.
Servo motor applications — Ruland BCK50-24-16-A bellows couplings for high-speed, zero-backlash connections.
Not sure this is the right part? Photo-identify it→

RULAND MANUFACTURING Products

3G Electric supplies RULAND MANUFACTURING zero-backlash curved jaw spiders. 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 →

More from RULAND MANUFACTURING

View all RULAND MANUFACTURING parts →
This inch-size curved jaw spider is designed for use in jaw couplings to transmit torque while damping vibration. It features a 1 5/16 in outside diameter, a maximum speed of 8,000 RPM, and is made of 98A material. Suitable for industrial power transmission applications requiring precise motion control
RULAND MANUFACTURING
This inch-size curved jaw spider is designed for use in jaw couplings to transmit torque while damping vibration. It features a 1 5/16 in outside diameter, a maximum speed of 8,000 RPM, and is made of 98A material. Suitable for industrial power transmission applications requiring precise motion control

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first