| 摘要 |
PROBLEM TO BE SOLVED: To reduce starting failure caused by uneven contact and abrasion of a thrust sliding part as well as preventing the damage of the thrust sliding part caused by thrust washer by arranging an annular groove on a shaft flange surface corresponding to a protrusion of the thrust washer fixed to a flange surface of a shaft. SOLUTION: An annular thrust washer 19 is interposed between a flange surface 18 and an upper end surface of a bearing part 15, and is provided with a protrusion extending upward so as to fix to a shaft 16. An annular groove 21 is formed on a flange surface 18 of a balance plate 17 of a shaft 16 corresponding to the protrusion 20. A width of the groove 21 is set larger than that of the protrusion 20. The groove 21 and the protrusion 20 are fitted to each other, and the thrust washer 19 is fixed to a flange surface 18 of the shaft 16. As a result, movement in a diameter direction of the thrust washer 19 is regulated, an inner circumferential surface of the thrust washer 19 is brought into contact with a journal surface of the shaft 16, and abrasion is prevented from generating by bite effect.
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