Patent ID: 8419287

Claim:
An axle bearing lubricating and cooling system, comprising: a shaft unit, said shaft unit comprising a shaft and an axle bearing supporting said shaft, said axle bearing comprising an inner race fixedly mounted around said shaft, an outer race and a plurality of movable members movably set in between said inner race and said outer race; and a positioning unit, said positioning unit comprising a casing defining therein an accommodation chamber that accommodates said axle bearing and a part of said shaft for enabling two distal ends of said shaft to extend out of said casing, said casing being fixedly connected with said outer race of said axle bearing, said casing having a plurality of fluid inlets arranged at a side thereof at different elevations for guiding a cooling fluid from an external cooling fluid source into said accommodation chamber through a gap in between said outer race and said inner race of said axle bearing and a plurality of fluid outlets arranged at an opposite side thereof at different elevations for guiding said cooling fluid out of said accommodation chamber.