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The Difference Between: Ball Screw Actuators and Ball Screw Splines

Nov. 14, 2023
Both ball screw actuators and ball screw splines use rotating balls to provide smooth, precise motion in a compact design. But there are important differences between the two.

Ball screw actuators provide linear motion in response to an input torque, and they have enclosed recirculating ball bearings that travel on a threaded shaft with minimal friction. Ball screw splines combine a driven-nut-type ball-screw assembly with a rotary ball spline and can provide linear, rotary, and spiral motion.

Download this article to learn the differences between them — and in what applications they are best used.

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