Patent ID: 9056522
Filing Date: 2015-06-16
Classification: B60B,F16C

Abstract:
1. A tapered roller wheel bearing assembly comprising: a hub provided with a hub flange for mounting a wheel formed radial outwardly at an end portion thereof and a hub raceway formed at a side portion close to the hub flange; an outer ring enclosing the hub and provided with an outer raceway corresponding to the hub raceway on an interior circumference thereof; a tapered roller disposed between the hub raceway and the outer raceway and allowing a relative rotation of the hub and the outer ring; a first sealing member for preventing inflow of foreign material, the first sealing member mounted between the hub flange and an end of the outer ring; and a second sealing member for preventing inflow of foreign material, the second sealing member mounted between an interior circumference of the other end portion of the outer ring, wherein a flange base is formed between the hub flange and the hub raceway and a first undercut for grinding the hub raceway is formed at the flange base, wherein a second undercut for dispersing stress concentrated on the first undercut is further formed at the flange base, and wherein the first undercut and the second undercut formed at the flange base are located in between the first sealing member and the second sealing member.