| 摘要 |
The sectional shape of a rolling surface of at least one of bearing component parts has the following relation between the order n (n being an arbitrarily chosen natural number) and the amplitude r of waviness relative to the circularity of the sectional shape. The order n and the amplitude r are logarithmically transformed to define X = Log (n) from the order n and Y = Log (r n ) from the amplitude r of n-order. When a regression line Y = aX + b is determined, the ratio ´/à of the deviation ´ at each X from the regression line of Y to the standard deviation à is chosen to be smaller than 4. |
