| 摘要 |
PROBLEM TO BE SOLVED: To provide a member for a dynamic pressure bearing preventing a rotary shaft from being pulled out and a radial dynamic pressure groove from being damaged, a mould for moulding the same, a method for manufacturing the same, and the dynamic pressure bearing. SOLUTION: This member 30A for the dynamic pressure bearing is provided with a predetermined length, has a bearing hole 51 having a round inner section in which a rotary shaft 31 is inserted opened thereon, consists of a bottomed 52 resin tube part 50 of which one end opens as a rotary shaft insertion opening 51a, has predetermined shape radial dynamic pressure grooves Ra, Rb formed on an inner circumference surface 53 of a bearing hole 51 of the tube part 50, has a thrust bearing part S formed on a bottom part 50, and has a retaining washer engagement groove 57 integrally formed above a part near the thrust bearing part S. COPYRIGHT: (C)2007,JPO&INPIT |
