Browse Publications Technical Papers 2022-01-1192

Vehicle Noise Sensitivity to Different Levels of Taper Wheel Bearing Brinell Damage for Body-on-Frame Passenger Vehicles 2022-01-1192

This paper reviews the relationship between taper wheel bearing damage and vehicle noise and vibration for a body-on-frame pickup truck and a body-on-frame SUV. In addition to understanding how the different levels of bearing damage relate to vehicle noise, it also discusses the level of noise versus the damaged bearing’s position in the vehicle.
For this study, the wheel bearing supplier provided front and rear bearings with various amounts of Brinell damage to the bearing raceways. The different bearings were evaluated subjectively for noise in the vehicle. After vehicle testing, the bearing raceway Brinell depths were measured to correlate the level of bearing damage to vehicle noise.
The study shows the relationship between bearing Brinell dent depth and vehicle noise for body-on-frame light trucks and SUVs. The noise was most apparent in vehicles between 45 and 60 mph. For bearings with moderate levels of damage, steering inputs were required to hear noise. This corresponds to a vehicle turning at city or highway speeds. For the front bearing, slightly less damage was required to create the same amount of noise that was heard on the rear of the vehicle.


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