How to install the main shaft sliding bearing?

               
Update: 06-11-2020
               
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The sliding bearing of machine tool spindle is the main […]

The sliding bearing of machine tool spindle is the main shaft sliding bearing of precision machine tool and similar equipment. It can ensure the working precision and use function of precision machine tool.
The sliding bearing of machine tool spindle is the main shaft sliding bearing of precision machine tool and similar equipment. It can ensure the working precision and use function of precision machine tool. The accurate configuration of main shaft sliding bearing refers to the combination of sliding bearing types and the arrangement of front and rear sliding bearings. Different configuration determines the different load capacity, operating speed, stiffness, temperature rise and service life of machine tool spindle, especially the influence on stiffness and temperature rise is more obvious. Therefore, the spindle sliding bearing should be reasonably configured according to the requirements of machine tool working characteristics. The purpose of running in operation is to make the roller and raceway of the sliding bearing pass through the running in before the formal angle making, so as to maintain the good contact accuracy of the sliding bearing, and avoid the damage of the roller and raceway caused by the sliding bearing at high speed and heavy load at the beginning, so as to improve the service life and precision of the sliding bearing.

Because the tapered roller sliding bearing is not in complete dynamic elastic contact, there is sliding between the roller end face and the shoulder of the inner ring. If the contact premise is not good, it is easy to appear the phenomenon of bite damage. Therefore, we should pay more attention to the running in operation of this kind of sliding bearing. The main shaft sliding bearing is the main shaft sliding bearing of precision machine tool and similar equipment. It can ensure the working precision and use function of precision machine tool.

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