| 摘要 |
A bearing molded from a resin composition comprising 39.9-80 wt.% of a polycyanoaryl ether mainly constituted of repeating units, represented by general formula (I) (wherein Ar represents (a), (b), (c), (d), (e), (f) or (g)) and having a reduced viscosity [ eta sp/c] of 0.6 dl/g or above at 60 DEG C when dissolved in a concentration of 0.2 g/dl in p-chlorophenol, 5-30 wt.% of a fluororesin and 10-55 wt.% of at least one member selected from among carbon fiber, carbon bead and copper alloy powder. The bearing is excellent in wear resistance, does not damage the mating material, does not make abnormal noise, can prevent malfunctions of electronic equipment caused by electrification, and is lightweight. A resin composition comprising 35-85 wt.% of a polycyanoaryl ether mainly constituted of repeating units, represented by general formula (I) (wherein Ar represents (a), (b), (c), (d), (e), (f) or (g)) and having a reduced viscosity [ eta sp/c] of 0.6 dl/g or above at 60 DEG C when dissolved in a concentration of 0.2 g/dl in p-chlorophenol, 5-60 wt.% of phosphor bronze powder and 5-30 wt.% of a fluororesin. The composition provides a molded article which is excellent in wear resistance irrespective of whether the mating material is rigid or flexible, does not damage the mating material, and does not make abnormal noise. It is also capable of mass production according to injection molding technique. |
