B - Operations – Transporting – 60 – B
Patent
B - Operations, Transporting
60
B
301/131
B60B 37/00 (2006.01) B60B 27/00 (2006.01) B60B 37/06 (2006.01)
Patent
CA 1161475
Title AXLE DRIVE ASSEMBLY Abstract A full-floating axle drive assembly for propelling a vehicle includes a shaft having a splined end to which a splined drive member is axially and non-rotatably secured. The drive member is secured to the splined end of the shaft between the bottom of the shaft splines and a forged flange end. In a preferred embodiment, the shaft extends through an axle tube on which a wheel hub is fully supported by bearings. The drive member is secured to the wheel hub which is rotated thereby about the axle tube. Background This invention relates to vehicular drive assemblies, and particularly to fully floating drive axles. Prior construction of axles in the light to medium truck category has involved the forging of a one-piece axle and axle shaft flange r and has necessitated flange machining to rather close tolerances to provide the finished drive axle. The production of various shaft lengths has been relatively cumbersome and expensive, since production line changes involving resetting of equipment has been required. Even where such axles have been of two-piece construction, viz. axle shaft flanges splined to axle shafts, as for example in certain off-highway construction and industrial equipment, the flanges have in general been axially secured to the shafts by snap rings, or simply left unsecured. When left unsecured the axles have been subject to chucking under load changes and/or to end thrust damage which occurs upon the cornering of the vehicle as result of relative axial movement of the shaft within the axle flange. Summary of Invention The drive assembly of this invention contains a drive axle shaft having a splined portion at one end, over which a splined drive member is axially and non-rotatably secured between (1) an inner extremity of the splined portion and (2) a forged flange formed at the end of the axle shaft. The axle shaft end is not subject to chucking or end thrust, as the axle shaft does not move axially relative to the drive flange. Moreover,
365359
Dana Corporation
Ridout & Maybee Llp
LandOfFree
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