Patent ID: 6851722
Filing Date: 2005-02-08
Classification: F16H,Y10T

Abstract:
1. A coupled circulation tube for ball screw bearing, comprising: an arcuate bent tube formed of first and second bent tubes coupled together and ends thereof installed on respective circulation holes on a formed planar surface of the ball screw bearing; and a plurality of recessed grooves and flanges formed longitudinally on said first and second half bent tubes arrayed in a geometrically staggered manner facing against each other such that said half bent tubes are coupled successively with each other with opposing ones of the grooves and flanges interlocking together into a resultant U-shaped arcuate elbow tube for ball circulation therein, and wherein the flanges interlocked into respective ones of the grooves form parts of inner and outer walls of the U-shaped arcuate elbow tube.