Study on the Traction Properties of a High-Speed Grease

Abstract

LGLT2 grease is a newly developed lithium based grease used widely in small rolling bearing of instrument and control equipment at high speed.In this paper the curves of the traction coefficient against slide-to-roll ratio of LGLT2 film are measured on a high-speed ball-disc traction force tester under the conditions of the varying rolling speed from 20m/s to 40m/s and the varying load from 20N to 40N.The experimental results show that the grease LGLT2 performs well under above conditions,demonsrating lower traction coefficients with the increasing rolling speed. Both T-J model and an exponential model are employed to fit the experimental data. The results show that there are high consistencies between the experimental data and calculation values obtained from both models.