| 摘要 |
A resin pulley was made of a resin material wherein an inorganic fiber such as glass fiber, an inorganic powder such as silica powder, an organic fiber such as cotton cloth fiber, and an elastomer are blended in a phenol resin. Each content of the inorganic fiber, inorganic powder, organic fiber and elastomer in the above resin material is within the following range. <TABLE> <IMAGE> |
