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The customer required a zero backlash shaft coupling for a robot that would be used to perform human hip replacement surgery. They were using a high torsionally stiff coupling, but found that at high RPM the unit could shear, particularly when being subjected to higher than normal parallel shaft misalignment. The set screw attachment also proved unreliable for the torque being transmitted.
A standard double flexure Helical coupling was used providing more reliable compensation of parallel offset between the shafts. The integral clamp attachment was used, and the torsional stiffness of the stainless steel was adequate for the application. This standard catalog coupling was more cost effective than the competitor's coupling.
![[Helical Flexible Shaft Coupling]](../../images/Products/FlxFacts/FLEXst39.jpg)
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901 W.
McCoy Lane · P.O. Box 1069 · Santa Maria, CA 93456-1069 Phone: 805-928-3851 · Fax: 805-928-2369 sales@heli-cal.com · engineering@heli-cal.com |
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Copyright © 1997-2007 Helical Products Company, Inc. -- All rights reserved. |
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