Torque-traction Technologies, Inc.

Vincent J Morgillo

Mark E Abbotoy

A method for statistically analyzing the operation of a machine for balancing articles for rotation so as to reduce measurement errors and thereby enhance productivity and quality including the steps of collecting raw data during production balancing of articles for rotation, and statistically analyzing the data to determine appropriate process control limits for prompting investigative or corrective action if a process control limit is exceeded.

Method for balancing an article for rotation

A motor vehicle axle assembly includes a hollow cylindrical, internally-splined input shaft that is adapted to be connected to an externally-splined shaft of an end fitting of a driveshaft assembly. By using the mass centerline or center of balance of the end fitting shaft as a common center of balance for a balanced driveshaft assembly and further as a locating centerline for the connection between the input shaft of the axle assembly and the shaft of the rear end fitting of the driveshaft assembly, eccentricities in the connection between the input shaft and the end fitting are minimized to reduce noise and vibration. This also provides an adequate seal between the input shaft and the carrier of the axle assembly to retain lubricant in the carrier.

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Northwood, OH, United States of America

Vincent J Morgillo