RULAND MANUFACTURINGSet Screw Oldham Coupling Hubs for Round Shafts

RULAND MANUFACTURING Motion Control Coupling Hub: 0.5° Angular Misalignment

SKU 3G-OTH-141150

Also listed as: OST215A · OST21 5 A

Brand

RULAND MANUFACTURING

Item

Motion Control Coupling Hub: 0.5° Angular Misalignment

Local availability & support — the Philippines

Delivery: 5–8 business days door-to-door; Bureau of Customs clearance typically 2–4 business days.
Payment: Invoicing in PHP or USD. Bank transfer and corporate PO accepted.
Ships to: Manila, Quezon City, Cebu, Davao, Batangas

Technical Specifications

RULAND MANUFACTURING

Manufacturer Part Number

OST21-5-A 

Axial Motion

0.006 in 

Technical Documents

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RULAND MANUFACTURING Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

The RULAND MANUFACTURING Motion Control Coupling Hub (MPN OST21-5-A) is a set screw Oldham coupling hub for round shafts, designed for 0.5° angular misalignment and 0.006 in axial motion. This OST21 series hub from RULAND MANUFACTURING provides a precise motion control solution for industrial equipment applications.

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 OST21-5-A coupling hub used for?

The RULAND MANUFACTURING OST21-5-A is a set screw Oldham coupling hub for round shafts. It is used in motion control applications to accommodate 0.5° angular misalignment and 0.006 in axial motion, providing precise torque transmission in industrial equipment.

What are the specifications of the RULAND MANUFACTURING OST21-5-A?

The RULAND MANUFACTURING OST21-5-A is an OST21 series set screw Oldham coupling hub. It allows 0.5° angular misalignment and 0.006 in axial motion. The manufacturer part number is OST21-5-A, and it is designed for round shafts in motion control systems.

Where to buy the RULAND MANUFACTURING OST21-5-A worldwide?

3G Electric supplies the RULAND MANUFACTURING OST21-5-A coupling hub worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver this motion control component to your facility, regardless of location.

How to select the correct RULAND MANUFACTURING Oldham coupling hub?

To select the correct RULAND MANUFACTURING Oldham coupling hub like the OST21-5-A, match shaft diameter, misalignment requirements (0.5° angular, 0.006 in axial), and torque capacity. Consult the OST21 series specifications and verify bore size compatibility with your round shaft.

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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