PINION SHAFT SUPPORTING BEARING DEVICE

摘要

PROBLEM TO BE SOLVED: To improve the efficiency of a differential gear by reducing turning torque, in a pinion shaft supporting bearing device for supporting a pinion shaft 4 constituting an automotive differential gear in a rotatable relation in a differential case 1. SOLUTION: The bearing device supports the pinion shaft 4 in a rotatable relation to the differential case 1. A pinion gear side rolling bearing 6 comprises a deep groove ball bearing 61 and a thrust ball bearing 62 juxtaposed axially. A pair of rolling bearings 5 and 6 are fixed to the differential case 1 by coupling of a companion flange 7 in the pinion gear direction by means of a nut 15. COPYRIGHT: (C)2003,JPO