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Oldham couplings for printing applications

10 May 2015

Ruland offers zero-backlash oldham couplings that accommodate high amounts of parallel misalignment with low bearing loads. The balanced design also reduces vibration at higher speeds.

Print equipment manufacturers benefit from a combination of flexibility and accuracy of motion provided by these couplings. The three-piece design allows servicing to be carried out without machine disassembly - a useful feature for removing or changing out rollers.

Ruland oldham couplings consist of two hubs that mate to a torque transmitting centre disk making them adaptable to a wide variety of printing applications. This three-piece design is suitable for equipment where the roller must be frequently changed out. Hubs can be left in place and the roller can be quickly removed by sliding the disk and assembly off the driving hub.

Oldham couplings are easily customised, combining clamp and set screw hubs with inch, metric, keyed, and non-keyed bores. Hubs are standard in black anodised aluminium for improved lubricity, increased life, and low inertia.

The centre disk is available in acetal plastic for high torsional stiffness, nylon for shock absorption and noise reduction, and PEEK for high temperature and low out-gassing. Oldham couplings have the advantage of electrical isolation due to the non-conductive nature of the centre disk.

Ruland offers oldham couplings with bore sizes ranging from 3mm to 30mm. Stainless steel hubs are available upon request for use in high corrosion or clean room environments.

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