Vehicle wheel end assembly

Details Vehicle wheel end assembly Vehicle wheel end assembly

B - Operations, Transporting

60

C

152/171

B60C 23/00 (2006.01)

Patent

CA 1266423

VEHICLE WHEEL END ASSEMBLY Abstract A vehicle wheel end assembly (10) is adaptable for use with an on-board central tire inflation system. The assembly provides a passage for the routing of air between the on-board system and the vehicle tire. The assembly comprises a stationary spindle (12) and a rotational hub (14) mounted thereon. The hub is supported for rota- tion by first and second axially spaced bearing sets (16, 18), each having an inner race (20, 26) and an outer race (22, 28) associated with the spindle and hub, respectively. The inner race of the -inboard bearing set (18) is formed with an axial air passage (46) which communicates with an internal chamber (36) in the hub to form a portion of the air passage between the tire and on-board system. In another feature, rotary seals (60, 62) are seated in opposed faces of the bearing sets and include sealing lips (72) which have a sealed contact with the upper surface of the inner bearing races. An inboard spindle collar (100) may also be employed to facilitate the continua- tion of the air passage (98) in the bearing race (90) to the on-board system.

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