| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a seal plate inspection method capable of certainly determining quality of press-fit of a seal plate. <P>SOLUTION: A ball bearing 200 has: a plane part 214 in parallel with an opening; and a seal surface 212 orthogonal to the plane part 214. A seal plate 250 has: an inner peripheral side lip part 276 which contacts the seal surface; and a base part 272 which supports the inner peripheral side lip part 276. A recess S where a part of the inner peripheral side lip part 276 becomes a bottom 274A is formed between the plane part 214 and the base part 272 in a state that the seal plate 250 is press-fit in the opening. At least one of level difference between the plane part 214 adjacent to the recess S and the bottom 274A, and level difference between the base part 272 adjacent to the recess S and the bottom 274A is measured with a laser sensor 130, and quality of press-fit of the seal plate 250 is determined based on an obtained value of the level difference. <P>COPYRIGHT: (C)2012,JPO&INPIT |
