| 摘要 |
PURPOSE:To impart a function of holding a load ball and a function of smoothly guiding the ball without unreasonableness, by respectively forming lateral slits in size smaller than a diameter of a ball parallelly to an internal sloped side of a holder guiding plural balls. CONSTITUTION:In bearing blocks 201, 202 in which mounting parts 205, 206 are provided to one side and bearings are formed to the other, the bearing is constituted by a bearing main unit 203, 204, holder 215 guiding plural balls and side cap. And load ball track grooves 208, 209 and escape ball guide holes 210, 211 are formed to the bearing main unit at an optional distance while slits are respectively formed parallelly to an internal sloped side of the holder 215 covered to the bearing main unit, and an external sloped side of the holder is mounted to a lateral sloped sides of the bearing main unit. Further a direction changing U- groove guiding balls from the grooves 208, 209 to the holes 210, 211 is formed to the side cap mounted to an end face of the bearing block. |
