| 摘要 |
<p>PURPOSE:To prevent worn particles from being generated due to wearing between the members of an upper flange and a sleeve and to prevent the worn particles or dust such as cut particles or the like from falling down to a roller main body side and entering a space between the sliding faces of the roller main body and the sleeve. CONSTITUTION:The position of a roller main body (12) on a supporting axis (2) can be adjusted according to the movement of a sleeve (10) caused by the screwing of an upper flange (26) and by fixing an annular body (resin cap 28) composed of synthetic resin to the upper flange (26) and interposing this annular body between the upper flange and the sleeve, direct friction between the upper flange and the sleeve is avoided.</p> |
