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"Rolling Ring" linear drives.
Zero backlash. Jam-proof design.  Amacoil/Uhing rolling ring drives convert the rotary motion of a threadless shaft into backlash-free linear output. The absence of threads means there is no clogging or jamming. If the system is somehow overloaded, the shaft simply slips instead of churning and grinding.
Special machining and compression of the rolling ring bearing assembly prevent backlash, and make it unnecessary to design-in or purchase extra anti-backlash solutions such as preloaded nuts, shims or double enveloping gears. There is never any "play" between shaft and bearing - even during reversal. A free movement lever (F-lever) is optional on rolling ring drives, making it possible to slide the drive with its attached load, anywhere along the shaft without having to turn on the motor. The F-lever reduces wear and tear on the system by eliminating the need to "jog" the motor on and off to maneuver the drive into place. Amacoil/Uhing drives are available separately or on the shaft in a custom assembly built to meet application needs such as thrust and travel length requirements. For positioning linear motion applications
Model RS drive
Example applications: positioning sensors, test and measurement devices, x-y table movement. For reciprocating linear motion applications - WITHOUT electronics or programming
Model RG drive
RG rolling ring drives simplify set-up and operation by eliminating the need for complex controls and programming. Linear speed and travel direction are mechanically controlled independently of the drive motor. Example applications: Packing/converting equipment, winding machines, spray & coating equipment, scanning devices, other applications requiring repetitive "back-and-forth" linear motion. Request a CD-ROM or Brochure
For additional information on Amacoil/Uhing rolling ring linear drives and assemblies, visit the Amacoil web site or email your request.
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