This content is not included in your SAE MOBILUS subscription, or you are not logged in.

CVJ and Knuckle Design Optimization to Protect Inboard Wheel Bearing Seals from Splash

Journal Article
2016-01-1956
ISSN: 1946-3995, e-ISSN: 1946-4002
Published September 18, 2016 by SAE International in United States
CVJ and Knuckle Design Optimization to Protect Inboard Wheel Bearing Seals from Splash
Sector:
Citation: Sutherlin, R. and Reed, D., "CVJ and Knuckle Design Optimization to Protect Inboard Wheel Bearing Seals from Splash," SAE Int. J. Passeng. Cars - Mech. Syst. 9(3):1255-1263, 2016, https://doi.org/10.4271/2016-01-1956.
Language: English

Abstract:

For higher mileage vehicles, noise from contaminant ingress is one of the largest durability issues for wheel bearings. The mileage that wheel bearing sealing issues increase can vary due to multiple factors, such as the level of corrosion for the vehicle and the mating components around the wheel bearing. In general, sealing issues increase after 20,000 to 30,000 km. Protecting the seals from splash is a key step in extending bearing life. Benchmarking has shown a variety of different brake corner designs to protect the bearing from splash. This report examines the effect of factors from different designs, such as the radial gap between constant velocity joint (CVJ) slinger and the knuckle, knuckle labyrinth height and varying slinger designs to minimize the amount of splash to the bearing inboard seal. This report reviews some of the bearing seal failure modes caused by splash. This study also discusses the test methodology to confirm the robustness of the various designs and provides information on the effectiveness of different features to protect the corner from splash.

Recommended Content

Aerospace Standard Gearbox - Airframe Mounted Accessory
Aerospace Standard FLANGE-ACCESSORY, 8” BOLT CIRCLE
Aerospace Standard FLANGE-ACCESSORY, 10” BOLT CIRCLE