| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a friction material suppressing judder without impairing the abrasion resistance. SOLUTION: This friction material is formed by preliminarily molding yarn for the friction material obtained by impregnating or covering a composition including, at least, one of rubber and resin in/over a base fiber, into an annular shape and then thermo formed. Its porosity is set to not less than 10% and not more than 20%.</p> |
