| 摘要 |
PROBLEM TO BE SOLVED: To provide a plastic gearwheel which solves the problems of durability such as lubricity and abrasion resistance and achieves noise reduction.SOLUTION: In a plastic gearwheel, all or part of a gearwheel body is formed of thermoplastic resin composition that contains (A) thermoplastic resin, and (B) modified ethylene-propylene-diene copolymer resin resulting from unsaturated carboxylic acid or derivatives thereof. |
