DOI: 10.1115/1.4058819 ISSN: 0097-6822

Ball-Bearing Machine-Tool Spindles

Thomas Barish

Abstract

This paper is a review of the three types of ball-bearing machine-tool spindles now in use, showing how rigidity is obtained in each type and what results are secured. There is also a historical review of the first type, which was originally put into service over ten years ago and has since received minor improvements. The three main groups are:

(a) Two-bearing, manually adjusted spindles

(b) Automatically spring-adjusted spindles

(c) Three-bearing spindles, adjustable and non-adjustable.

Comparisons are made between the various types for their rigidity, and some deflection curves and actual measurements of rigidity are quoted.

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