Differential unit

摘要

A protruding section facing a drive pinion shaft is integrally provided on a spacer interposed between an inner race of a pilot bearing and an inner race of a tapered roller bearing at an inner section opposite to the drive pinion shaft. The protruding section is curved so as to be convex along the overall central axial direction of the spacer, and is arch shaped in cross section. The protruding section protrudes towards the drive pinion shaft along the overall inner peripheral direction of the spacer, and the inner surface of the protruding section comes into contact with or close to the outer surface of the drive pinion shaft.