BEARING PART STRUCTURE OF SHAFT

摘要

PROBLEM TO BE SOLVED: To restrict axial movement of a bearing supporting a shaft over a long time in a more secure manner.SOLUTION: A bearing part structure of a shaft includes: an output shaft 10; a load side bearing 30 supporting the output shaft; a bearing nut 40 for restricting axial movement of the load side bearing; a collar 50 disposed adjacent to the bearing nut; and an oil seal 60 disposed at an outer periphery of the collar. The output shaft has: a first male screw part 16A with which the bearing nut is threadedly engaged; and a second male screw part 16B with which the collar is threadedly engaged. The collar is threadedly engaged with the second male screw part of the output shaft and placed in contact with the bearing nut in an axial direction.SELECTED DRAWING: Figure 1