| 摘要 |
PROBLEM TO BE SOLVED: To provide a hub unit bearing equipped with a side cover having a drain hole which does not decrease the strength of the side cover and through which water is hard to enter the inside even when the water is poured near the drain hole.SOLUTION: The side cover 18 covering an axis end portion of the hub unit bearing 10 includes a disc portion 34, and a cylindrical portion 35 formed by bending from an outer peripheral edge portion of the disc portion 34 in an axial direction. In the cylindrical portion 35 fitted and fixed to an outer ring member 11, the drain hole 42 making the inside and outside of the side cover 18 communicate with each other is provided by a cut-and-bent portion 41 which is cut and bent toward the inner side in a diametrical direction or the outer side in the diametrical direction of the cylindrical portion 35. |
