JPS629730U - - Google Patents

Description

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention; FIG. 1 is a perspective view of the first embodiment, FIG. 2 is a sectional view perpendicular to the sliding direction of FIG. 1, and FIG. 3 is a diagram of the first embodiment. Fig. 4 shows a model of the arrangement of cylindrical rollers in the raceway groove, and Fig. 5 shows a model of the amount of vertical displacement of the sliding member when the bearing slides.
FIG. 6 shows a second embodiment using a ball. The symbols in the drawings indicate the following members, respectively. 1: Sliding member, 2: Raceway member, 2a: Raceway groove for large-diameter rollers of raceway member, 2b: Raceway groove for small-diameter rollers of raceway member, 3: Casing, 3a: Raceway groove for large-diameter rollers of sliding member , 3b: Raceway groove for small diameter roller of sliding member, 3
c: Length of raceway groove for large-diameter rollers, 3d: Length of raceway groove for small-diameter rollers, 4: Side plate, 4a: Direction change path for large-diameter rollers, 4b: Direction change path for small-diameter rollers, 5a: Large diameter Return path for rollers, 5b: Return path for small diameter rollers, 6a: Large diameter cylindrical rollers, 6b: Small diameter cylindrical rollers,
α: Gap.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A raceway member having two raceway grooves for rolling elements formed on each side in the longitudinal direction of a long piece, and a recess for enclosing the raceway groove portion of this raceway member. A sliding member formed in the axial direction and having a rolling element raceway groove corresponding to the raceway groove of the raceway member formed in the recess thereof, and between the raceway groove of the raceway member and the raceway groove of the sliding member. A rolling bearing for raceway guidance is equipped with a large number of rolling elements that fit together and can roll freely, and has a structure that allows loads to be applied in all directions between a single row of raceway grooves and the rolling elements. The clearance between the raceway groove on the side closer to the bottom of the recess in the sliding member and the rolling element is such that the clearance between the raceway groove on the side closer to the open end of the recess in the sliding member and the rolling element is zero or negative. A rolling bearing for track guidance, characterized in that the clearance is zero or positive when . (2) The length of the raceway groove on the side closer to the bottom of the recess of the sliding member is formed shorter than the length of the raceway groove on the side closer to the open end of the recess of the sliding member. A rolling bearing for track guide as claimed in the first utility model registration.