| 摘要 |
PROBLEM TO BE SOLVED: To provide a bearing device that can prevent a snap ring from corotating even if an outer ring of a bearing creeps, and can be made compact.SOLUTION: A bearing device has a first annular groove 11a formed on an inner peripheral surface of a housing 11 and a second annular groove 21b formed on an outer peripheral surface of an outer ring 21 of a roller bearing 20, and is mounted with a snap ring 30 over the first and second annular grooves 11a, 21b. The first annular groove 11a is sectioned substantially in a V shape and the second annular groove 21b is sectioned substantially in a V shape. Both side faces of an outer peripheral part of the snap ring 30 are formed into inclined surfaces 31 to be tapered outward in radial directions of the snap ring 30, and both side faces of an inner peripheral part of the snap ring 30 are formed into vertical surfaces 32 orthogonal to the axial direction of the snap ring 30 and come into surface contact with a side face 21c of the second annular groove 21b respectively. |
