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RULAND MANUFACTURING Jaw Coupling Spider: JC50/JCC50/MJC80/MJCC80 Coupling Size, Inch, 4.379 hp - Zero-Backlash Curved Jaw Spiders
RULAND MANUFACTURINGZero-Backlash Curved Jaw Spiders

RULAND MANUFACTURING Jaw Coupling Spider: JC50/JCC50/MJC80/MJCC80 Coupling Size, Inch, 4.379 hp

The RULAND MANUFACTURING Jaw Coupling Spider is a zero-backlash curved jaw spider designed for use with JC50/JCC50/MJC80/MJCC80 coupling sizes. It is rated for 4.379 hp and is identified by manufacturer part number…

SKU 3G-OTH-138976

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

Brand
RULAND MANUFACTURING
Item
Jaw Coupling Spider: JC50/JCC50/MJC80/MJCC80 Coupling Size, Inch, 4.379 hp
Category
Zero-Backlash Curved Jaw Spiders
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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
JD50/80-98R
Type
: JC50/JCC50/MJC80/MJCC80 Coupling Size, Inch, 4.379 hp, 98A

Technical Documents

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

Product Description

The RULAND MANUFACTURING Jaw Coupling Spider is a zero-backlash curved jaw spider designed for use with JC50/JCC50/MJC80/MJCC80 coupling sizes. It is rated for 4.379 hp and is identified by manufacturer part number JD50/80-98R. This component is compatible with MJCC80 couplings.

Frequently Asked Questions

What is a RULAND MANUFACTURING Jaw Coupling Spider used for?

A RULAND MANUFACTURING Jaw Coupling Spider is a zero-backlash curved jaw spider that transmits torque between shafts in industrial power transmission systems. It is used with JC50/JCC50/MJC80/MJCC80 coupling sizes to dampen vibration and accommodate misalignment in pumps, conveyors, and machine tools.

What are the specifications of the RULAND MANUFACTURING JD50/80-98R spider?

The RULAND MANUFACTURING JD50/80-98R is a zero-backlash curved jaw spider rated for 4.379 hp. It fits JC50/JCC50/MJC80/MJCC80 coupling sizes and is made from 98A durometer material. The spider is compatible with MJCC80 couplings and is designed for inch-dimension systems.

Where to buy RULAND MANUFACTURING JD50/80-98R worldwide?

3G Electric supplies the RULAND MANUFACTURING JD50/80-98R jaw coupling spider to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your site. Contact us for pricing and lead time on this zero-backlash curved jaw spider.

How to select the right RULAND MANUFACTURING jaw coupling spider?

To select the correct RULAND MANUFACTURING jaw coupling spider, match the coupling size (e.g., JC50/JCC50/MJC80/MJCC80) and horsepower rating (4.379 hp for the JD50/80-98R). Confirm shaft diameters and ensure the spider durometer (98A) suits your torque and misalignment requirements. Consult RULAND MANUFACTURING's catalog for compatibility.

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 spiders. 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
RULAND MANUFACTURING Jaw Coupling Spider: JC44/JCC44/MJC70/MJCC70 Coupling Size, Inch, 0.476 hp, 92A (MPN JD44/70-92Y)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Spider: JC44/JCC44/MJC70/MJCC70 Coupling Size, Inch, 0.476 hp, 92A (MPN JD44/70-92Y)
RULAND MANUFACTURING Jaw Coupling Spider: JC44/JCC44/MJC70/MJCC70 Coupling Size, Inch, 2.0944 hp (MPN JD44/70-98R)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Spider: JC44/JCC44/MJC70/MJCC70 Coupling Size, Inch, 2.0944 hp (MPN JD44/70-98R)
Zero-backlash curved jaw spider for use with JC10/JS10/MJC15/MJS15 coupling sizes. Outside diameter 19/32 in, power rating 0.0159 hp. Transmits torque while damping vibration and accommodating minor misalignment in motion control and automation applications
RULAND MANUFACTURING
Zero-backlash curved jaw spider for use with JC10/JS10/MJC15/MJS15 coupling sizes. Outside diameter 19/32 in, power rating 0.0159 hp. Transmits torque while damping vibration and accommodating minor misalignment in motion control and automation applications
RULAND MANUFACTURING Jaw Coupling Insert: JC10/JS10/MJC15/MJS15 Coupling Size, 19/32 in Outside Dia (MPN JD10/15-98R)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Insert: JC10/JS10/MJC15/MJS15 Coupling Size, 19/32 in Outside Dia (MPN JD10/15-98R)
Zero-backlash curved jaw spider for coupling sizes JC12/JS12/MJC19/MJS19. Outside diameter 3/4 in, power rating 0.0159 hp. Used in motion-control systems to connect shafts with accurate torque transmission
RULAND MANUFACTURING
Zero-backlash curved jaw spider for coupling sizes JC12/JS12/MJC19/MJS19. Outside diameter 3/4 in, power rating 0.0159 hp. Used in motion-control systems to connect shafts with accurate torque transmission
RULAND MANUFACTURING Jaw Coupling Insert: JC12/JS12/MJC19/MJS19 Coupling Size, 3/4 in Outside Dia (MPN JD12/19-98R)
RULAND MANUFACTURING
RULAND MANUFACTURING Jaw Coupling Insert: JC12/JS12/MJC19/MJS19 Coupling Size, 3/4 in Outside Dia (MPN JD12/19-98R)

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Zero-backlash curved jaw spider for JC10/JS10/MJC15/MJS15 coupling sizes. Outside diameter 19/32 in, power rating 0.0076 hp. Dampens vibration and accommodates misalignment in motion-control applications
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