Influences of Nano-Silica on Friction and Noise Properties of Urea Grease

Abstract:

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Tribological properties of the urea grease containing nano-silica were investigated with a four-ball tester, and its noise characteristics were evaluated with a BVT-1 bearing vibration tester. The results showed that the nano-silica has good effects on friction and wear resistances, the urea grease with 3% nano-silica has the least value of friction coefficient, and the urea grease with 2% nano-silica showed the best wear resistance. A proper amount of nano-silica can decrease the noise of the urea grease, and when lubricated by the grease with 1% nano-silica, the bearing achieved its lowest noise level as well as the best velocity values of both intermediate and high frequencies.

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Periodical:

Edited by:

Daizhong Su, Qingbin Zhang and Shifan Zhu

Pages:

189-193

DOI:

10.4028/www.scientific.net/KEM.450.189

Citation:

J. H. Yin et al., "Influences of Nano-Silica on Friction and Noise Properties of Urea Grease", Key Engineering Materials, Vol. 450, pp. 189-193, 2011

Online since:

November 2010

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$35.00

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