Final speed-reduction gearing assembly in transmission unit
In a final speed-reduction gearing assembly for a transmission unit mounted within a trans-axle casing which carries an output drive pinion shaft thereon, the speed reduction gearing assembly is described which consists of a ring gear in mesh with a drive pinion integral with the drive pinion shaft, and a differential gear unit integrally connected at an outer case thereof with the ring gear, the outer case of the differential gear unit being provided at the opposite ends thereof with first and second cylindrical sleevelike side-journals rotatably supported by first and second axially spaced bearings which are respectively mounted on first and second carrier portions of the trans-axle casing. The improvement described includes a retainer member is radially detachably fixed to the first carrier portion of the transaxle casing to fasten the first bearing in place, and an annular shim plate is disposed between the outer end of the first bearing and the inner end wall of the first carrier portion. The first carrier portion includes an opening adjacent the annular shim plate to permit the annular shim plate to be removed and replaced in a radial direction to adjust a preload axially acting on the bearings, and the inner end wall of the first carrier portion is provided with a radial recess through which a tool can be inserted to remove the annular shim plate.
- Assignee:
- Toyota Jidosha Kabushiki Kaisha, Aichi
- Patent Number(s):
- US 4597311
- OSTI ID:
- 5461721
- Resource Relation:
- Patent File Date: Filed date 21 Mar 1983
- Country of Publication:
- United States
- Language:
- English
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