Patent ID: 6049988
Filing Date: 2000-04-18
Classification: F16C

Abstract:
A linear motion guiding apparatus comprising:a guide rail provided with two roller running surfaces formed on an upper surface of said guide rail and with two ball running grooves formed on each of side surfaces of said guide rail;a movable block provided with a horizontal member facing the upper surface of said guide rail and with a pair of wing members respectively facing the side surfaces of said guide rail, said horizontal member having on an under surface thereof two roller running counter-surfaces corresponding to said two roller running surfaces of said guide rail, and said each of said wing members having on an inner surface thereof two ball running counter-grooves corresponding to said two ball running grooves of said guide rail;two trains of rollers arranged between the two roller running surfaces of the upper surface of said guide rail and the two roller running counter-surfaces of the horizontal member of said movable block, respectively, so as to be rollable; andtwo trains of balls arranged between the two ball running grooves of the side surfaces of said guide rail and the two ball running counter-grooves of the inner surfaces of said wing members, in each of gaps between the side surfaces of said guide rail and the inner surfaces of said wing members, so as to be rollable.