Torque-traction Technologies, Inc.

Spicer Technology Inc.

Ben J Passino

Todd Smith

Mark Charles Barnholt

Patrick J Ballinger

Michael J Catalano

Ken E Cooper

A method and apparatus to independently measure the bearing pre-load of a pinion gear and differential case an assembled axle assembly. The ring gear and pinion gear are positioned within a backlash so that there is no engagement therebetween. The pinion shaft and differential case are rotated independently in synchronization maintaining the relative positions and the torque to rotate the pinion shaft and differential case are independently measured.

Method of independently measuring bearing preload in an axle assembly

A novel arrangement of a pinion shaft for a differential assembly having a substantially H-shaped cross-section with added oiling radii. The H-shaped pinion shaft provides substantially reduced weight of the differential pinion shaft, increases a strength-to-weight ratio, and improves lubrication.

Pinion shaft for differential assembly

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Fort Wayne, IN, United States of America

Ben J Passino