| 摘要 |
PROBLEM TO BE SOLVED: To reduce temperature-rise of a contacting part between a protrusion and a groove and stably carry out lubrication between the protrusion and the groove for a long term. SOLUTION: An axle 58 and a driven part 2 are rotated as one body by locking a protrusion 59 installed on an end face of the axle 58 into a groove 61 formed in the driven part 2. A shaft 62 of the driven part 2 is held by a flange 63. Since installation locations of the flange 63 and a vehicle box 64 are determined by a locating member 1 installed on the flange 63, eccentricity between centers of the shaft 58 and the driven part 2 is prevented and temperature-rise of a contacting part between the protrusion 59 and the groove 61, which depends on the eccentricity, is reduced by determining the locations so as to be coincided centers of the axle 58 and the driven part 2. An opening 3 leading to the groove 61 is formed in the driven part 2, where lubrication between the protrusion 59 and the groove 61 for a long term is stably carried out for a long term by containing lubricant in the opening 3. |
