| 摘要 |
PROBLEM TO BE SOLVED: To prevent the seizure, early abrasion or the like by providing at least one of a pair of slide surfaces with a lubricant outlet portion, and mounting a humidity retaining portion for reserving the leaking lubricant between the slide surfaces around the outlet portion. SOLUTION: In the structure for feeding the lubricant to a pair of slide faces 2a, 3a which are contacted with one another between a bearing body portion 2 and a shaft body portion 3 and relatively rotatable, an outlet portion 4 for feeding the lubricant to the slide surface 3a through an inside of the shaft body portion 3 is mounted, and a humidity retaining portion 5 for reserving the flown lubricant between the slide surfaces 2a, 3a for a moment is mounted around the outlet portion 5. Two kinds of humidity retaining portions 5 exist, and both are mounted for every outlet portion 4. A first humidity retaining portion 5 is formed by collecting a number of fine recesses to coarsen a part of the slide surface 3a. A second humidity retaining portion 5 is formed by forming the slit-shaped notches 11 perpendicular to the axial direction on the outlet portion 4, and fitting the guides 15, 16 and a pad member 17 in the notches to form a lubricant reservoir portion 20. Whereby the lubricant is reserved in the humidity retaining portion for a moment, and the lubricating condition can be ensured at all times.
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