| 摘要 |
PROBLEM TO BE SOLVED: To provide a low viscosity fluid lubricating bearing which is small in friction in a solid contact condition between a rotation side sliding part and a fixed side sliding part to be generated in starting/stopping a plain bearing, and excellent in seizure-resistant performance. SOLUTION: A surface roughness in which the maximum height Rmax is 0.1-7μm and the unevenness pitch is <=0.1 mm is executed, or a recess in which the maximum height Rmax is 0.1-7μm and the unevenness pitch is 0.1-5 mm is executed on at least one sliding surface of a fixed side sliding part 2 and a rotation side sliding part 1. A surface roughness in which the maximum height Rmax is 0.1-7μm and the unevenness pitch is <=0.1 mm is executed on one sliding surface of the fixed side sliding part 2 and the rotation side sliding part 1, and a recess in which the maximum height Rmax is 0.1-7μm and the unevenness pitch is 0.1-5 mm is executed on the other sliding surface.
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