Study on a Ball Screw (Part 4)

Practical procedure of the measurement of the ball center locus diameter

Abstract

In this part 4, a series of approximate equations for correction values on the measurement of the "ball center locus diameter"-the diameter of the imaginary cylinder, on which the center of a ball traces as the ball has screw motion contacting with a screw surface-, the practical measuring procedures and new measuring devices are reported. From the examples of calculations deduced from the exact equations, it is proved that the approximate methods are good enough for practical use.