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RULAND MANUFACTURING Zero-Backlash Curved Jaw Spider - Zero-Backlash Curved Jaw Spiders
RULAND MANUFACTURINGZero-Backlash Curved Jaw Spiders

RULAND MANUFACTURING Zero-Backlash Curved Jaw Spider

The RULAND MANUFACTURING Jaw Coupling Spider, model JD21/33-85B, is a zero-backlash curved jaw spider with a 1 5/16 in outside diameter. It is rated for 0.0571 hp and a maximum speed of 8,000 RPM, constructed from…

SKU 3G-OTH-138964

Also listed as: JD213385B · JD21 33 85B · JD21-33-85B

Brand
RULAND MANUFACTURING
Item
Zero-Backlash Curved Jaw Spider
Part Number
JD21/33-85B
Category
Zero-Backlash Curved Jaw Spiders
Available to Order
Also known as:JD21/33-85BRULAND MANUFACTURING
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Local availability & support — Singapore

Local office
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Phone
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Technical Specifications

RULAND MANUFACTURING
Manufacturer Part Number
JD21/33-85B
Type
Inch, 85A
Max Speed
8,000 RPM

Technical Documents

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

Product Description

The RULAND MANUFACTURING Jaw Coupling Spider, model JD21/33-85B, is a zero-backlash curved jaw spider with a 1 5/16 in outside diameter. It is rated for 0.0571 hp and a maximum speed of 8,000 RPM, constructed from 85A material. This inch-size component is designed for use in industrial coupling applications.

Frequently Asked Questions

What is a RULAND MANUFACTURING Jaw Coupling Spider used for?

A RULAND MANUFACTURING Jaw Coupling Spider, model JD21/33-85B, is used in industrial power transmission systems to connect two shafts while dampening vibration and accommodating minor misalignment. Its zero-backlash curved jaw design ensures precise torque transfer in applications like pumps, gearboxes, and conveyors.

What are the specifications of the RULAND MANUFACTURING JD21/33-85B?

The RULAND MANUFACTURING JD21/33-85B is an inch-size zero-backlash curved jaw spider with a 1 5/16 in outside diameter. It is rated for 0.0571 hp and a maximum speed of 8,000 RPM, constructed from 85A material. This component is designed for industrial coupling applications requiring reliable torque transmission.

Where to buy RULAND MANUFACTURING jaw coupling spiders worldwide?

You can source the RULAND MANUFACTURING JD21/33-85B jaw coupling spider 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 on this inch-size, 85A spider.

How to select the right RULAND MANUFACTURING jaw coupling spider?

To select the correct RULAND MANUFACTURING jaw coupling spider, match the outside diameter (1 5/16 in for model JD21/33-85B) to your coupling hub size. Verify the power rating (0.0571 hp) and maximum speed (8,000 RPM) meet your application demands. The 85A material provides good dampening for general industrial use.

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.
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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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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

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