A linear-motion system designed by Amacoil Inc., Aston, Pa., is a sturdy, reciprocating platform that limits vertical and horizontal movement to ±0.001 in. and has virtually zero play in any direction ...
Compressive forces (labeled F and F/2) keep the three inner rings in contact with the driveshaft. The ability to produce smooth, precise, and accurate linear motion is key to many manufacturing and ...
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