| 摘要 |
PURPOSE:To obtain uniform pre-pressure to track by providing a plurality of through holes on a bearing unit in line and providing a desired pre-pressure by pressing by a pressing means. CONSTITUTION:A plurality of independent through holes 14 are provided in line on one sleeve 13 of a bearing unit so as to be approximate to a track groove and so as to surround the groove from the back side. The bearing unit is screwed by some adjusting screws 15 over the longitudinal direction. Then, the adjusting screws are screwed to the center line X-X of a track rack to deform a track 5 of a bearing case 4 elastically and applies a desired pre- pressure to the bearing. Then, uniform pre-pressure can be applied to the track. |
