Careers

Careers

Precision Ground Ball Screws

 Determined primarily by the number and size of balls in engagement and, to a certain extent, by the preload and type of nut mounting.

 The minor diameter of the screw shaft measured at the root of the ball grooves.

The diameter of a theoretical cylinder passing through the centers of the ball bearings.

 The number of threads per inch or millimeter (Pitch = 1/Lead).

 The useful life of a ball screw assembly, usually given in terms of one million inches of travel.

 The error in lead length per turn, compared to the basic lead specified.

 Lead is the amount of linear advance caused by one revolution of the leadscrew (lead = 1/Pitch).