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CSME 2025/08
Volume 46 No.4
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433-442
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Analysis of Slipping Performance of Angular Contact Ball Bearing for Micro Turbine
Guang-chao Wang a, Yu Wang a, Tian-zhen Jiang a, Qing-peng Han b, Rui Zhu c, Hang-yuan Lv d and Tian-qi You a
aGraduate Student, College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 201306, China.
bAssociate Professor, College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 201306, China,
cProfessor, College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 201306, China.
dAssociate Professor, School of Mechanical Engineering and Automation, Northeastern University, Shenyang 110819, China
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Abstract:
For angular contact ball bearings that rotate at high speed and bear combined load and angular de-flection, this paper calculates the microturbine angu-lar contact ball bearing 7000c through quasi-static equations on the basis of Hertzian contact theory, obtains the changes of bearing force and slippage under different axial preload, radial load, inclination angle and speed, and obtains the slip critical curve of ball bearing based on Hirano slip criterion. The re-sults show that angular contact ball bearings running at higher speeds require large axial preload forces in order to prevent ball slippage. When the bearing does not bear the radial load, and the axial preload is lower than 100N, the bearing will slip in the entire speed within the speed of 20000-70000r/min, and when the radial load is 2000N, the bearing will not slip in the entire speed.
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Keywords: Angular Contact Ball Bearings, Slippage Analysis, Preload, Contact Force.
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©
2025
CSME , ISSN 0257-9731
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