| 摘要 |
PROBLEM TO BE SOLVED: To provide a resin pulley capable of preventing shortening of a lifetime of a belt by restraining eccentric wear from occurring in an inner periphery of the belt. SOLUTION: A pulley body 5 formed by injection molding of a resin composition containing a fiber reinforcing material is provided on an outer periphery of a bearing member 1. The pulley body 5 includes a cylindrical boss portion 6 secured to the bearing member 1, an annular portion 3 extending from the boss portion 6 and a cylindrical rim portion 2 formed on the annular portion 3. An annular groove 8 that makes no contact with the belt 4 is formed at a portion of an outer periphery of the rim portion 2 corresponding to the annular portion 3. COPYRIGHT: (C)2008,JPO&INPIT
|
