BALL GUIDE UNIT AND LINEAR MOTION SLIDER IN USE WITH THE BALL GUIDE UNIT

摘要

A ball guide unit and a slider in a linear motion guide unit are provided to supply clean lubricant by inserting a return pipe into a non-load ball passage for keeping away from impurities. A ball guide unit includes a ball guide(BG), an upper return pipe(71a), and a lower return pipe(71b). The ball guide includes an upper inside guide part(73a), a lower inside guide part(73b), and a connecting part(74). The upper inside guide part guides insides of balls in an upper part. The lower inside guide part guides insides of balls in an lower part. The connecting part connects the upper inside guide part and the lower inside guide part. The upper return pipe is formed on the upper inside guide part. The lower return pipe is formed on the lower inside guide part.