Vehicle wheel end assembly
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United States of America Patent
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Jul 16, 1996
Issued Date -
N/A
app pub date -
Sep 30, 1994
filing date -
Jul 8, 1985
priority date (Note) -
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Abstract
A method of making 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 rotation 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 continuation of the air passage (98) in the bearing race (90) to the on-board system.
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