| 摘要 |
The package bearing includes two cones (16) that fit over a spindle (4) on a wheel hub (B), a double cup (30) that surrounds the cones and is configured to bolt against the suspension system of a vehicle, and tapered rollers (52) that are located between opposed raceways (18,32) on the cup and the two cones. The cup at each of its ends has an end bore (36). The end bore at the outboard end contains a seal (56) which establishes a dynamic fluid barrier with the outboard cone. The end bore at the inboard end contains a flexible retainer (60) that creates a closure between the cup and the inboard cone. The end bore at the outboard end also receives an end cap which extends across the end of the inboard cup and the end of the spindle to close the entire inboard end of the bearing. The seal and retainer unitise the bearing for shipping and handling. The retainer further keeps grease from migrating into the end cap during the operation of the bearing. |
