RULAND MANUFACTURINGClamp-On Oldham Coupling Hubs for Keyed Shafts

RULAND MANUFACTURING Motion Control Coupling Hub: 0.5° Angular Misalignment

The RULAND MANUFACTURING OCC21-8-A is a clamp-on Oldham coupling hub for keyed 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-141080

Also listed as: OCC218A · OCC21 8 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

OCC21-8-A 

Axial Motion

0.006 in 

Technical Documents

No technical documents available for this product.

Request documentation →

Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.

Talk to an engineer

Ask a question

RULAND MANUFACTURING Products

3G Electric (S) Pte. Ltd. — Singapore

Product Description

Frequently Asked Questions

What is the RULAND MANUFACTURING OCC21-8-A coupling hub used for?

The RULAND MANUFACTURING OCC21-8-A is a clamp-on Oldham coupling hub for keyed 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 servo drives.

What are the specifications of the RULAND MANUFACTURING OCC21-8-A?

The RULAND MANUFACTURING OCC21-8-A is a clamp-on Oldham coupling hub for keyed shafts, part of the OCC21 series. It handles 0.5° angular misalignment and 0.006 in axial motion. The manufacturer part number is OCC21-8-A, and it is designed for motion control applications.

Where to buy the RULAND MANUFACTURING OCC21-8-A worldwide?

You can source the RULAND MANUFACTURING OCC21-8-A 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.

How to select the correct RULAND MANUFACTURING Oldham coupling hub?

To select the correct RULAND MANUFACTURING Oldham coupling hub, verify shaft diameter, keyway size, and misalignment requirements. The OCC21-8-A accommodates 0.5° angular misalignment and 0.006 in axial motion. Ensure the hub's clamp-on design matches your shaft type for secure motion control performance.

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 keyed shafts. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

Browse all RULAND MANUFACTURING products →Contact our engineers →