Patent ID: 8267591

Claim:
A wheel bearing seal adapted to be mounted in an annular space opening formed between an outer member and an inner member including double row rolling elements comprising: an annular sealing plate and a slinger arranged opposite to each other; the sealing plate including a metal core and a sealing member integrally adhered to the metal core by vulcanized adhesion, the metal core is adapted to fit onto an inner circumference of an end of the outer member, the sealing member including a first side lip, a second side lip, and a grease lip, the first and second side lips are inclined radially outward, the grease lip is inclined radially inward; the slinger has a substantially L-shaped cross-section including a cylindrical portion and an upstanding portion, the cylindrical portion is adapted to be fit onto the outer circumference of an end of the inner member, the upstanding portion extends radially outward from the cylindrical portion, the first and second side lips slidably contact the upstanding portion, via a predetermined axial interference, and the grease lip slidably contacts the cylindrical portion via a predetermined radial interference; a relationship of the force is F 1 +F 2 ≦1.5×F 3 between contacting loads F 1 and F 2 , respectively, of the first and second side lips and a fastening force F 3 of the grease lip, wherein F 1 and F 2 are exerted against the slinger upstanding portion in an axial direction and F 3 is exerted against the slinger cylindrical portion in a radial direction.