| 摘要 |
An end portion of a pin 2 rotatably supporting a rolling body 1 is fitted in a pin-receiving hole 4 formed in an annular side plate 3. The pin-receiving hole 4 has interference in a range from 5 to 40 μm between itself and the outer diameter of the pin 2. The end portion of the pin 2 pressed in the pin-receiving hole 4 with 5-40 μm interference is welded to the annular side plate 3.
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