Numerical Study on Rolling Bearing Temperature Field under the Oil-Air Lubrication

Abstract:

Speed of rolling bearing and flow rate of air have important influences on the bearing’s working temperature under the oil-air lubrication mode. Based on basic principle of lubrication, one of the heat productivity equations of deep groove ball bearing is selected to calculate the heat value of bearing’s cavity. The bearing’s temperature field is simulated by Fluent at different rotational speeds and air flow rates. Results of the simulation show that the highest temperatures of bearing have a quantitative relationship with the bearing’s rotational speeds. The relationships between the velocity of inlet and heat transfer coefficient, viscosity of the lubricant and the heating of bearing are analyzed in the end of this paper.

• Periodical: Applied Mechanics and Materials (Volume 487)
• Pages: 580-584
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.487.580
• Online since: January 2014
• Authors: Qi Guo Sun*, Yue Fei Wang, Ying Wang, Peng Niu, Xiong Shi Wang
• Keywords: Deep Groove Ballbearing, Heat-Flow Coupling, Oil-Air Lubrication, Temperature Field

References

[1] ZhongheYang, Houfei Liu. Oil-air Lubrication Technology, Part 1 [J]. Lubrication Engeering, 2003, (1): 107~109 (in Chinese).

[2] Tonghai Yan, Lidong He. Gas-liquid Two Phase Fluid Cooling Lubrication Technology and Its Application. Harbin: Harbin Engineering University press, 1995 (in Chinese).

[3] Junguo Zhang, Binbin Gun, Jianwen Wang et al. Study on the Optimum Oil Feeding for the Rolling Bearing Lubricated with Oil-air [J]. Lubrication Engeering, 2006, 10: 168-170.

[4] Bernd Bossmanns, Jay F. Tu. A Thermal Model for High Speed Motorized Spindles [J]. Machine Tools &Manufacture, 1999, 39: 1345-1366.

DOI: 10.1016/s0890-6955(99)00005-x

[5] A. Palmgren. Ball and Roller Bearing Engineering[M]. 3rd ed. Philadelphia, Pennsylvania: Brubank, (1959).