Patent ID: 7988583
Filing Date: 2011-08-02
Classification: B60K,F16H

Abstract:
1. A final reduction gear device in which a rotary drive force transmitted from an input shaft is deflected in an axis of rotation by an orthogonal axis gear, an output gear of which is disposed coaxially with a differential case of a differential gear mechanism portion, then transmitted to said differential case via a speed reduction mechanism portion that is disposed coaxially with said differential case and includes a sun gear, which is provided as a continuation of said output gear of said orthogonal axis gear and allocated to input, an internal gear which is fixed, and a planetary carrier which is allocated to output, and then transmitted to left and right output shafts by a differential pinion that rotates in the interior of said differential case integrally with said differential case, and a differential side gear that meshes with said differential pinion, wherein a first bearing member having a large radial load capacity is disposed between said output gear of said orthogonal axis gear and said differential case, a second bearing member having a large axial load capacity is disposed between said sun gear, and an inner race of said first bearing member and said differential case, and a third bearing member having a large axial load capacity is disposed between said output gear of said orthogonal axis gear and said planetary carrier.