Rigid disc couplings

Disc couplings from Ruland are said to be torsionally stiff, operate with zero-backlash and have a balanced design. This makes them suitable for use in solar and semiconductor systems such as wafer handlers, bonders and screen-printers which require accurate positioning and rapid movement, at speeds of up to 10,000rpm.


The disc couplings are comprised of two anodised aluminium hubs for low inertia and multiple flat stainless steel disc springs that allow for shaft misalignment while remaining rigid under torsional loads.

Single disc styles are suited for applications where compact installation is required. Double disc styles have a centre spacer to increase misalignment capabilities. The centre spacer is available in anodised aluminium for general purpose use, or insulating acetal for electrical isolation. Parallel misalignment is accommodated by the double disc style or by using two single disc couplings in tandem.

The disc couplings are manufactured with bore combinations ranging from 3 to 32mm and are RoHS2 and REACH compliant.