Patent ID: 7862235
Filing Date: 2011-01-04
Classification: F16C

Abstract:
1. A linear guide device comprising: a guide rail formed into a straight line shape; a slider relatively moving in the lengthwise direction of the guide rail; and a large number of rolling elements rollably incorporated in the slider, the slider including a slider body having a plurality of slider side rolling element rolling grooves facing to a plurality of rail side rolling element rolling grooves formed on the guide rail; a pair of end caps mounted at one end and the other end of the slider body; a plurality of return guides that form between the end caps and the slider body a direction change path communicating with a rolling element load rolling path formed between each rail side rolling element rolling groove and a corresponding slider side rolling element rolling groove and communicating with a rolling element return passage formed in the slider body; and a pair of rolling element cages for holding the rolling elements interposed between the rail side rolling element rolling grooves and the slider side rolling element rolling grooves, wherein each rolling element cage has two plate parts facing to each other with the slider body being held therebetween; wherein a rolling element holding part of each rolling element cage has at least one notch part or a concave part in the lengthwise direction of the rolling element holding part; and