| 摘要 |
PURPOSE:To obtain the subject composition capable of keeping excellent bearing performance and durability even under high load and high temperature condition by compounding a synthetic resin, an aromatic polyamide fiber, a tetra fluoroethylene resin, a phosphoric acid salt and a carbonic acid salt at specific ratios. CONSTITUTION:The objective composition is composed of (A) 40-70vol.% of a synthetic resin such as a thermosetting resin (e.g. phenolic resin or epoxy resin) and a heat-resistant thermoplastic resin (e.g. polyphenylene sulfide and aromatic polyamide) as a matrix, (B) 3-20vol.% of an aromatic polyamide fiber as a reinforcing fiber, (C) 5-30vol.% of tetrafluoroethylene resin as a solid lubricant and (D) a mixture of (i) 10-30vol.% of a phosphate such as calcium phosphate and (ii) 10-30vol.% of a carbonate such as calcium carbonate at a ratio (i/ii) of 1/(0.1-1). |
