| 摘要 |
PROBLEM TO BE SOLVED: To improve wear resistance of an anti-friction bearing having an inner and an outer rings made of synthetic resin to enable using for the long time without using lubricating oil or grease. SOLUTION: The outer ring 1 and the inner ring 2 are comprised of resin composition containing powder made of porous material. The powder can be obtained by crushing the mixture of degreased bran and thermosetting resin after firing. COPYRIGHT: (C)2005,JPO&NCIPI
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