RULAND MANUFACTURINGSet Screw Oldham Coupling Hubs for Round Shafts

RULAND MANUFACTURING Motion Control Coupling Hub: 0.5° Angular Misalignment

The RULAND MANUFACTURING OST21-10-A is a set screw Oldham coupling hub for round shafts, designed for motion control applications. It accommodates 0.5° angular misalignment and 0.006 in axial motion. This hub is…

SKU 3G-OTH-141131

Also listed as: OST2110A · OST21 10 A

Brand

RULAND MANUFACTURING

Item

Motion Control Coupling Hub: 0.5° Angular Misalignment

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

OST21-10-A 

Axial Motion

0.006 in 

Technical Documents

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RULAND MANUFACTURING Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the RULAND MANUFACTURING OST21-10-A coupling hub used for?

What are the specifications of the RULAND MANUFACTURING OST21-10-A?

The RULAND MANUFACTURING OST21-10-A is a set screw Oldham coupling hub for round shafts. It allows 0.5° angular misalignment and 0.006 in axial motion. The manufacturer part number is OST21-10-A, and it is part of the OST21 series.

Where to buy the RULAND MANUFACTURING OST21-10-A worldwide?

You can source the RULAND MANUFACTURING OST21-10-A through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide locations. Contact us for availability and lead time.

How to install a set screw Oldham coupling hub?

To install the RULAND MANUFACTURING OST21-10-A, align the hub on the round shaft and tighten the set screws evenly to the manufacturer's recommended torque. Ensure the mating disc accommodates the 0.5° angular misalignment and 0.006 in axial motion without binding.

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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