RULAND MANUFACTURINGClamp-On Oldham Coupling Hubs for Round Shafts

RULAND MANUFACTURING Motion Control Coupling Hub: 0.5° Angular Misalignment

The RULAND MANUFACTURING OCT21-5-A is a clamp-on 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 part…

SKU 3G-OTH-135273

Also listed as: OCT215A · OCT21 5 A

Brand

RULAND MANUFACTURING

Item

Motion Control Coupling Hub: 0.5° Angular Misalignment

Local availability & support

Delivery: Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment: Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

RULAND MANUFACTURING

Manufacturer Part Number

OCT21-5-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 OCT21-5-A coupling hub used for?

The RULAND MANUFACTURING OCT21-5-A is a clamp-on Oldham coupling hub for round shafts used in motion control applications. It accommodates 0.5° angular misalignment and 0.006 in axial motion, making it suitable for precision positioning systems, encoders, and light-duty servo drives.

What are the specifications of the RULAND MANUFACTURING OCT21-5-A?

The RULAND MANUFACTURING OCT21-5-A is a clamp-on Oldham coupling hub from the OCT21 series. It handles 0.5° angular misalignment and 0.006 in axial motion. The manufacturer part number is OCT21-5-A. It is designed for round shafts in motion control systems.

Where to buy the RULAND MANUFACTURING OCT21-5-A worldwide?

You can source the RULAND MANUFACTURING OCT21-5-A through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time.

How to install a RULAND MANUFACTURING clamp-on Oldham coupling hub?

To install the RULAND MANUFACTURING OCT21-5-A, clean the shaft and hub bore, then slide the hub onto the round shaft. Tighten the clamp screw evenly to the manufacturer's recommended torque. Ensure proper alignment to avoid excessive misalignment beyond the 0.5° angular and 0.006 in axial limits.

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 clamp-on 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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