| 摘要 |
A roller-type linear guide includes a slider having side walls and mounted on a guide rail. The slider is provided with a pair of upper slider support members and a pair of lower slider support members, respectively, protruding obliquely from the inner surfaces of side walls thereof towards V-shaped track grooves formed in opposite sides of the guide rail. Each of the upper and lower slider support members includes a roller supported rotatably on the tip of a support shaft, and an eccentric bushing is fitted around the support shaft integrally therewith. The support shaft with the eccentric bushing fitted thereon is inserted into a fixing through hole which penetrates the side wall, obliquely, so that the roller is eccentrically supported with respect to the axial line of the fixing hole. The roller abuts against the surface of the V-shaped track groove of the guide rail with a preload to absorb looseness between the slider and the guide rail. The inside space for receiving rollers of supporting members is substantially trapezoidal in cross section, and the fixing holes for fixing the support shafts of the lower slider supporting members extend to and open at an end face of the slider.
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