车轮轴承吹胀和车辆路缘冲击DOE,以了解影响轴承载荷的因素 Wheel Bearing Brinelling and a Vehicle Curb Impact DOE to Understand Factors Affecting Bearing Loads.pdf
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Downloaded from SAE International by American Univ of Beirut, Tuesday, July 31, 2018
Published 09/17/2017
Copyright © 2017 SAE International
doi: 10.4271/2017-01-2526
Wheel Bearing Brinelling and a Vehicle Curb Impact DOE
to Understand Factors Affecting Bearing Loads
Robert G. Sutherlin
General Motors LLC
ABSTRACT
As material cleanliness and bearing lubrication have improved, wheel bearings are experiencing less raceway spalling failures from
rotating fatigue. Warranty part reviews have shown that two of the larger failure modes for wheel bearings are contaminant ingress and
Brinell damage from curb and pothole impacts. Warranty has also shown that larger wheels have higher rates of Brinell warranty. This
paper discusses the Brinell failure mode for bearings. It reviews a vehicle test used to evaluate Brinell performance for wheel bearings.
The paper also discusses a design of experiments to study the effects of factors such as wheel size, vehicle loading and vehicle position
versus the bearing load from a vehicle side impact to the wheel. As the trend in vehicle styling is moving to larger wheels and low
profile tires, understanding the impact load can help properly size wheel bearings.
CITATI
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