| 摘要 |
<P>PROBLEM TO BE SOLVED: To easily assemble a shaft support device by preventing smearing damage under wide service conditions such as high speed rotation and a light load. <P>SOLUTION: This shaft support device is provided for incorporating a cylindrical roller bearing between a rotary shaft and a housing 1, and has a preload adjusting part 3 inserted between these opposed recessed parts 1b and 2b by oppositely forming the recessed parts 1b and 2b in the axial direction on an inner diameter surface 1a of the housing 1 and an outer diameter surface 2a of an outer ring 2 of the cylindrical roller bearing in a state of incorporating the cylindrical roller bearing. An insertion part of its preload adjusting part 3 is formed in a radial cross-sectional shape having an area of increasing a radial dimension in response to a turning angle around the axis in the radial direction. Rotation of the preload adjusting part 3 is prevented in its increased state by increasing a radial clearance of the cylindrical roller bearing to the negative side by pressing the outer ring 2 to the inner diameter side in a state of interposing between the opposed recessed parts 1b and 2b by rotating the preload adjusting part 3 around the axis. <P>COPYRIGHT: (C)2009,JPO&INPIT |
