| 摘要 |
<P>PROBLEM TO BE SOLVED: To resolve the lubrication failure owing to a reduction in the amount of lubricant without increasing the manufacturing cost in a lubricant supply device to a member mounted in a rotary shaft. <P>SOLUTION: A central hole 21 is coaxially formed in a rotary shaft 20 supported in a housing 10. A lead-in part 23b of a lubricant supply member 23 provided in the housing reverse to one end surface 20b of the rotary shaft is inserted from the one end surface side of the central hole to supply the lubricant into the central hole. The lubricant supplied into the central hole is supplied into a member provided in the outer periphery of the rotary shaft by a plurality of distribution holes 21a to 21d formed radially from the central hole toward the outer peripheral surface 20a of the rotary shaft. An annular recess 22 is formed in the central hole being the one end surface side of the rotary shaft over a considerable axial range. The bottom of the annular recess is formed into such a tapered surface shape that the diameter is gradually increased as the bottom becomes farther away from the one end surface. <P>COPYRIGHT: (C)2009,JPO&INPIT |
