Ruland Disc Couplings are available in single and double disc styles with bore sizes ranging from 1/8" to 1 1/4" in the inch series and 3mm to 30mm in the metric series. The disc coupling is composed of two black anodized aluminum hubs, multiple flat stainless steel disc springs and a center spacer for double disc styles. The center spacer is available in a choice of anodized aluminum or insulating acetal for electrical isolation. The thin discs allow for a substantial amount of angular and parallel misalignment between shafts, while remaining rigid under torque loads. The disc coupling, as a result, is a high performance motion control coupling with excellent high speed capabilities (up to 10,000 rpm), strength and torsional stiffness characteristics, and low inertia for today's highly responsive systems.

Learn more about how to choose a servo coupling for your particular application from a Ruland expert. Read "What to Look for in a Servo Coupling" written by William Hewitson, director of manufacturing.

• Please Note Change on Page 7 of Disc Coupling Catalog MDCD & MDSD15 Length 23.8, MDCD & MDSD19 Length 30.2, MDCD & MDSD25 Length 35.3, MDCD & MDSD33 Length 45.5, and MDCD & MDSD41 Length 55.8