Abstract
The friction torque inside the high-speed spindle bearing determines the performance of the friction, wear, heat, temperature rise and life of the bearing. Aim to analyze the high-speed spindle bearing dynamic characteristics, considering the influence of cage and internal lubricating oil-film, a quasi-static improved model of high-speed spindle bearing was developed. And a new method for calculating the friction torque of the bearing based on the quasi-static improved model was put forward. Then the theory and experiment were validated systematically. The results show that the quasi-static improved model is correct, and the method of calculating the friction torque of high-speed spindle bearing based the quasi-static improved model is feasible and reliable.
Highlights
As important bearing parts for transmission and load, angular contact ball bearings are widely used in various high-speed rotating machines, such as high-speed spindle, Aircraft engines[1]
It is known as the spindle bearing
There are two main methods for calculating the friction torque of the bearings: The first one is Palmgren's[11] method of calculating the friction torque. It is known as integral method; The second calculation method of friction torque proposed by Deng Si'er and Li Xinglin[12]
Summary
As important bearing parts for transmission and load, angular contact ball bearings are widely used in various high-speed rotating machines, such as high-speed spindle, Aircraft engines[1]. It is known as integral method; The second calculation method of friction torque proposed by Deng Si'er and Li Xinglin[12] A new method based on quasi-static improved model is proposed to analyze and calculate the friction moment of the bearing, the theoretical analysis and experimental research are carried out. It provides theoretical basis for the design, manufacture and use of high-speed spindle bearings to improve the overall performance and reliability of high-speed rotary machines
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