RULAND MANUFACTURINGSet Screw Oldham Coupling Hubs for Round Shafts

RULAND MANUFACTURING Motion Control Coupling Hub: 0.5° Angular Misalignment

The RULAND MANUFACTURING Motion Control Coupling Hub (MPN OST8-4-A) is a set screw Oldham coupling hub for round shafts, designed for 0.5° angular misalignment and 0.004 in axial motion. This OST8 series hub is…

SKU 3G-OTH-141136

Brand

RULAND MANUFACTURING

Item

Motion Control Coupling Hub: 0.5° Angular Misalignment

Technical Specifications

RULAND MANUFACTURING

Manufacturer Part Number

OST8-4-A 

Axial Motion

0.004 in 

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Technical Documents

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RULAND MANUFACTURING Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.

Frequently Asked Questions

What is the RULAND MANUFACTURING OST8-4-A coupling hub used for?

The RULAND MANUFACTURING OST8-4-A is a set screw Oldham coupling hub for round shafts. It is used in motion control applications to transmit torque while accommodating 0.5° angular misalignment and 0.004 in axial motion, protecting connected equipment from misalignment-induced wear.

What are the specifications of the RULAND MANUFACTURING OST8-4-A?

The RULAND MANUFACTURING OST8-4-A is an OST8 series set screw Oldham coupling hub for round shafts. It allows 0.5° angular misalignment and 0.004 in axial motion. The manufacturer part number is OST8-4-A, and it is produced by RULAND MANUFACTURING.

Where to buy the RULAND MANUFACTURING OST8-4-A worldwide?

3G Electric supplies the RULAND MANUFACTURING OST8-4-A coupling hub worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this motion control component for your application.

How to select the correct RULAND MANUFACTURING Oldham coupling hub?

To select the correct RULAND MANUFACTURING Oldham coupling hub, match the hub bore size to your round shaft diameter and verify the set screw type. Ensure the hub's misalignment ratings—0.5° angular and 0.004 in axial—meet your application requirements. Consult RULAND's technical data for torque capacity.

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 set screw oldham coupling hubs for round shafts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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