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http://dx.doi.org/10.12656/jksht.2021.34.3.130

Tribology Characteristics of Bearing Steel (STB2) with Pattern Shape  

Song, S.O. (Dept. of Nanoconvergence Engineering, Pusan National University)
Jang, T.H. (Dept. of Nanomechatronics Engineering, Pusan National University)
Bae, M.K. (Dept. of Nanoconvergence Engineering, Pusan National University)
Kim, T.G. (Dept. of Nanomechatronics Engineering, Pusan National University)
Publication Information
Journal of the Korean Society for Heat Treatment / v.34, no.3, 2021 , pp. 130-136 More about this Journal
Abstract
With the development of the industry, bearings that require higher durability and efficiency are required, and various methods to reduce friction and wear of bearings are being studied. In this study, a wear test was conducted for STB2, a bearing steel material, by machining a micro-line pattern on the race surface of the bearing by machining. The pattern pitch of the specimens was processed to 40㎛, 80㎛, and 150㎛, and the coefficient of friction characteristics were investigated for the unpatterned specimen and the specimen with a DLC thin film deposited on the surface. As a result of the wear test, the pattern pitch showed the smallest coefficient of friction at 40㎛, and it was confirmed that the smaller the pattern pitch, the better the tribology characteristics.
Keywords
Pattern; Bearing Steel(STB2); Tribology Test;
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