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US 4,249,783 AGranted
Wheel hub structure with bearing lubrication
AssigneePullman Incorporated
InventorJohn J. Glassmeyer
Life of this patent
Estimating the term…
Abstract
An arrangement for providing lubrication to the outer bearing of a wheel hub having inner and outer bearing assemblies from an internal annular lubricant reservoir in the wheel hub housing. A lubricant carrying tube positioned within the wheel hub housing has an inlet which receives lubricant from the reservoir and an outlet directed toward the outer bearing. Lubricant flows through the tube and is supplied to the outer bearing assembly as the wheel rotates.
Claims13
A wheel hub structure rotatably carried by an axle and comprising
- an annular hub housing adapted to be secured to a wheel;
- said hub housing having a first inside bearing surface adjacent to an inner end of the hub housing and having a second inside bearing surface adjacent to an outer end of the hub housing;
- inner and outer bearings between the axle and the respective first and second bearing surfaces to support the hub housing;
- said hub housing having an annular lubricant reservior between the first and second bearing surfaces;
- said annular lubricant reservior being formed radially outward relative to the inner and outer bearings;
- and
- a tube having a first circumferentially extending portion essentially subdividing said reservior and an inlet end aligned with the bottom of said annular lubricant reservior and having an outlet end directed toward at least one of said bearings for supplying lubricant to said one bearing, the circumferentially extending portion of said tube being positioned more closely to the other bearing than to said one bearing and thereby providing a lubricant entrapping channel with the housing open at one side to the other bearing for directing lubricant thereto.
4 more elements
A wheel hub structure rotatably carried by an axle and comprising
- an annular hub housing adapted to be secured to a wheel;
- said hub housing having a first bearing surface adjacent to one end of said hub housing and having a second bearing surface adjacent to the other end of said hub housing;
- first and second bearings between said axle and the respective first and second bearing surfaces;
- said hub housing having an annular lubricant reservoir between said first and second bearing surfaces;
- said annular lubricant reservior being formed radially outwardly relative to said first and second bearings;
- and
- a tube having an inlet end generally aligned with the outermost periphery of said lubricant reservoir, a first essentially arcuate portion circumferentially extending from said inlet about a substantial portion of the periphery of said lubricant reservior and thereby essentially subdividing said reservior, and an outlet end directed at the first of said bearings for providing lubricant thereto, said first portion of said tube being positioned substantially closer to said second bearing than to said first bearing and thereby forming a lubricant-entrapping channel with said hub housing adjacent said second bearing for directing lubricant thereto.
4 more elements
Dependencies are inferred from the claim text.