| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a bearing mounting structure capable of mounting a bearing in a state where a circlip is included on a rotor while reducing the dimension and weight of the rotor, and easily determining whether the circlip can be properly mounted or not.SOLUTION: A bearing mounting structure includes a rotor 1 having a first engagement recessed portion 1b on the inner peripheral face of a supporting shaft hole 1a, a bearing 5 having a second engagement recessed portion 7a on the outer peripheral face of an outer ring 7 so that the second engagement recessed portion 7a is opposed to the first engagement recessed portion 1b in a state of being mounted on the rotor 1, and a circlip 9 engaged in a state of being accommodated in a space defined by the first and second engagement recessed portions 1b, 7a. The rotor 1 is provided with a plurality of confirmation holes 1c extended along a rotation axis C from one end face to the other end face, and penetrated through the first engagement recessed portion 1b to confirm propriety of the engagement of the circlip 9 to the first and second engagement recessed portions 1b, 7a.</p> |
