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 single disc coupling is comprised of two black anodized aluminum hubs and multiple flat stainless steel disc springs. The single disc coupling is not very adept at accommodating parallel misalignment due to the complex bending of the disc that would be required.
The double disc coupling consists of two black anodized aluminum hubs, multiple flat stainless steel disc springs and a rigid center spacer. The double disc coupling allows each disc to bend in the opposite direction to harness the parallel offset.
The center spacer of the double disc coupling 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 couplings, as a result, are 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. /Double_Disc_Coupling.jpg "Ruland Black Anodized Double Disc Coupling")
Learn more about how to choose servo couplings for your particular application from a Ruland expert. Read "What to Look for in a Servo Coupling" written by William Hewitson, Vice President of Operations.
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- Please Note Change on Page 7 of Disc Couplings 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
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