Linear slide bearing

A linear slide bearing comprising:

• a slide table, formed into the shape of a letter "C" in cross section having a central inner side and a pair of arms, the slide table having a horizontal surface at the central inner side of the slide table and recesses formed on inner sides of the arms, the recesses having inclined surfaces on an upper part of the arms, the slide table having no-load ball guide grooves formed in the inclined surfaces;
• a pair of bearing races fitted into the recesses, the bearing races having no-load ball guide grooves formed in surfaces facing the inclined surface of the slide table and load ball grooves formed in opposite surfaces;
• a fixing member trapezoidal in cross section having inclined surfaces in pressure contact with inclined surfaces of the bearing races having the load ball grooves, the fixing member having screw holes formed at a central portion at certain intervals in a longitudinal direction, the fixing member being drawn upward by a bolt which passes through a central portion of the slide table and screwing into the screw hole formed in the fixing member, the inclined surfaces of the fixing member being pressed against the inclined surfaces of the bearing races as the bolt is tightened, thereby securing the bearing races in the recesses of the slide table;
• a guide rail trapezoidal in cross section fitted into a space formed by the fixing member and the bearing races, the guide rail having a ball-rotating groove in the inclined surfaces facing the bearing race inclined surfaces;
• guide covers having a guide groove and mounted to front and rear ends of the slide table to connect both ends of the no-load ball guide grooves, load ball grooves and ball-rotating grooves to form endless ball tracks;
• and a number of balls placed in the endless tracks.