| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a contact angle inspection apparatus capable of accurately inspecting a radial contact angle between a ball and a raceway surface by using a relatively simple constitution, and to provide a contact angle inspection jig and a contact angle inspection method thereof.SOLUTION: A contact angle inspection apparatus 2 includes an inspection jig 21 and a measurement unit 22. The inspection jig 21 has a first conductor part 21a which can be in contact with one of two contact points between a ball 17 and an inner ring-side raceway surface 111, and a second conductor part 21b which can be in contact with the other thereof. The measurement unit 22 detects a value of electric current depending on a resistance between the first conductor part 21a and the second conductor part 21b in such a state that the first conductor part 21a and the second conductor part 21b of the inspection jig 21 are in contact with the inner ring-side raceway surface 111.</p> |
