| 摘要 |
PROBLEM TO BE SOLVED: To accurately provide a bearing axial gap by a method wherein when an inner ring is pressed in an axle, press-in is stopped once in short of a time when the inner ring makes contact with an axle shoulder part, and a movement amount when the outer ring is axially moved is measured, and thereafter, the inner ring in a stroke amount exceeding a movement amount is pressed in. SOLUTION: The tip of a press-in jig 10 having a recessed part 10a having a given depth is brought into contact with the large part end face 3b of an inner ring 3. When the inner ring 3 is forcibly advanced toward the shoulder part 2b of an axle 2, at a point of time when the bottom of the recessed part 10a makes contact with the end of the axle 2, the inner ring 3 does not advance any more and press-in of the inner ring 3 is stopped once. An axial size A between the large part end face 3b and the reference surface 2e of the axle 2 is then measured and further, the outer ring 1 is axially moved and an axial movement amountΔa' is measured. Thereafter, the inner ring 3 is pressed in by the press-in jig 11 until the inner ring 3 is brought into contact with the shoulder part 2b, and an axial size B between the large part end face 3b and a reference surface 2e is measured. FromΔa=Δa'-(A-B), a negative bearing axial gapΔa is determined. Thus, a stable bearing gap is maintained.
|
