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Date: 2013-08-01

Dealing with Back Drive in a Linear Slide

(June 07, 2011 - Rockford, IL)

Under what conditions will a lead screw or ball screw back drive?

Back drive is a critical effect of specifying the correct ball screw or lead screw driven linear actuator, especially in vertical applications. Back-driving is the result of the load (or thrust force) pushing axially on the screw or nut to create rotary motion. All screws, depending on their efficiency, will back drive. The resulting torque is known as


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