Improving the Performance of Rolling Element Bearings with Nanocomposite Tribological Coatings 2006-01-3555
This study summarizes the development, characterization, and application of nanocomposite tribological coatings on rolling element bearings. Nanocomposite coatings consisting of nanocrystalline metal carbides embedded in amorphous hydrocarbon or carbon matrices (MC/aC:H or MC/aC) have been used to increase the fatigue life under boundary layer lubrication, provide debris tolerance, eliminate false brinelling, increase the operational speed, decrease the friction, and provide oil-out protection to rolling element bearings. MC/aC:H coatings are applied by magnetron sputtering at substrate temperature less than 180 °C, have small friction coefficients, high fracture strength, and can have hardness and modulus values twice and half that of carburized steel, respectively.
Citation: Doll, G., "Improving the Performance of Rolling Element Bearings with Nanocomposite Tribological Coatings," SAE Technical Paper 2006-01-3555, 2006, https://doi.org/10.4271/2006-01-3555. Download Citation
Author(s):
Gary L. Doll
Affiliated:
The Timken Company
Pages: 11
Event:
SAE 2006 Commercial Vehicle Engineering Congress & Exhibition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 2006 Transactions Journal of Passenger Cars: Mechanical Systems-V115-6
Related Topics:
Tribology
Coatings, colorants, and finishes
Bearings
Metals
Fatigue
Hydrocarbons
Steel
Roll
SAE MOBILUS
Subscribers can view annotate, and download all of SAE's content.
Learn More »