| 摘要 |
<p>A resin molding material for pulley essentially contains a novolac type phenolic resin, a glass fiber, an inorganic substrate other than the glass fiber, and an elastomer. The novolac type phenolic resin ranging from 25% by weight to 45% by weight, the glass fiber together with the inorganic substrate other than the glass fiber ranging from 45% by weight to 65% by weight, and the elastomer ranging from 0.5% by weight to 5% by weight, relative to the entire molding material are blended. As the inorganic substrate other than the glass fiber, for example, calcium carbonate is used. As the elastomer, for example, NBR is used. The phenolic resin molding material for pulley is molded to obtain a resin pulley. <IMAGE></p> |
