| 摘要 |
A wheel end (A, B, C) for mounting a road wheel (W) of an automotive vehicle includes a knuckle ( 2 ) having a bearing cavity ( 20, 24, 26 ), a hub having a spindle ( 40 ) that projects into the bearing cavity of the knuckle and a flange ( 42 ) at one end of the spindle, with the road wheel being attached to it, and a bearing ( 6 ) located within the bearing cavity and around the spindle of the hub to enable the hub to rotate on the spindle. The bearing includes tapered rollers ( 72 ) organized in outboard and inboard rows as well as raceways ( 60, 76, 82 ) along which they roll. The rollers of the inboard row roll along tapered raceways on a cup pressed into the bearing cavity and a cone ( 66 ) pressed over the spindle. The bearing is closed at that end by an inboard seal ( 12, 174, 184, 208 ) which includes a case ( 130 ) pressed into a bore ( 24 ) that forms part of the bearing cavity, a shield ( 132 ) pressed over a thrust rib at the end of the cone, and a seal element ( 134, 178 ) bonded to the case and establishing a fluid barrier with the shield. The shield has a wall ( 142, 188 ) which serves as a tone ring, and this ring is monitored by a sensor ( 14, 186, 212 ) which is fitted to the knuckle at the inboard end of the bearing cavity. A CV joint ( 8 ) engages the spindle, and it carries a slinger ( 16 ) which flings contaminants and debris away from the cavity and further has a seal element ( 154 ) which establishes a fluid barrier around the end of the cavity. |
