Oldham Couplings for Conveyor Systems

Ruland Manufacturing Co., Inc.
January 11, 2016

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Oldham couplings for conveyors have high parallel misalignment capabilities with low bearing loads and zero-backlash operation.

Marlborough, MA - Ruland oldham couplings are zero-backlash, have a balanced design, accommodate large parallel misalignment, and are highly versatile making them an ideal fit for precise positioning and general industrial conveyor systems. They also facilitate easy disassembly of rollers to allow for cleaning, replacement, and general maintenance.

Ruland oldham couplings are comprised of two anodized aluminum hubs and a torque transmitting center disk. This allows a single coupling to combine clamp and set screw hubs with inch, metric, keyed, and keyless bores. Ruland uses a proprietary hub machining process that leaves a smoother surface for interaction between the hub and disk resulting in long life and reduced downtime. Oldham couplings from Ruland have a balanced design for reduced vibration at high speeds. Modular conveyor systems benefit from a standard coupling that can be installed on different motor, shaft, and roller configurations including blind assemblies.

Torque transmission is accomplished by mating the slots on the center disk to the drive tenons on the hubs. Oldham couplings accommodate all forms of misalignment, and are best suited for parallel misalignment. They operate with low bearing loads protecting system components such as bearings. The disk is available in acetal for high torsional stiffness, PEEK for high temperature and low outgassing, and nylon for shock absorption and noise reduction. In the event of wear or failure, the disk can be replaced restoring the original performance characteristics. Oldham couplings are electrically isolating due to the non-conductive nature of the center disk. This helps prevent electrical currents from being passed to delicate instruments. They also act as a mechanical fuse in torque overload situations, with the disk cleanly breaking and stopping power transmission.

Bore sizes range from 1/8” (3mm) to 1-1/8” (30mm) and stainless steel hubs are available upon request for use in high corrosion or clean room environments. Disks can be manufactured with a center hole to allow further shaft penetration or tapped holes to attach the disk to a hub so it stays in place during disassembly. Full product specifications, 3-D CAD files, technical information, and installation videos can be found on the individual product pages.

Established in 1937, Ruland focuses on the design and manufacture of high performing shaft collars and couplings. All products are carefully manufactured in Marlborough, Massachusetts USA factory under strict controls using proprietary processes. 3D CAD files, full product specifications, and additional technical information, are available at www.ruland.com.

Product Link:  Oldham Couplings

Article Summary
• Accommodate high amounts of parallel misalignment with low bearing loads for reduced system wear
• Ease of disassembly allows for rapid removal and change out of rollers
• Balanced design for reduced vibration at higher speeds
• Modular systems benefit from customizability and blind assembly capability
• RoHS2 and REACH compliant
• Carefully made in our Marlborough, Massachusetts factory and available for immediate delivery

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Ruland Manufacturing Co., Inc.
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