The normal operation of the compressor, bearing installation, pay attention to the following points:

1. Classification and characteristics of bearings Bearings are used to support rotating parts. According to the different friction properties, bearings can be divided into two major categories, sliding bearings and rolling bearings. Rolling bearings have low frictional resistance and high efficiency. However, they have large contact dimensions, large contact stress, and high impact load capacity. They have low life and noise at high speed and heavy load. Sliding bearings have high load-bearing capacity, good vibration resistance, smooth operation, low noise, long service life, etc.

2, the basic structure of the rolling bearing inner ring, outer ring, rolling element, cage inner and outer ring function to reduce the contact stress limit rolling element axial movement commonly used ball rolling ball, cylindrical roller, needle roller, tapered roller, drum roller cage The action separates the rolling elements evenly to avoid direct contact between adjacent rolling elements.

3, Rolling Bearing Classification According to the direction of the role of the load can be divided into radial bearings and thrust bearings.

4. Bearing configuration of twin-screw compressor Model radial bearings with radial bearings 210/LG20250/LG25270/LG31, Type III machines for chemical use, other II/III machines

5, the bearing installation method Sliding bearing between the outer circle of the bearing and the exhaust end of the seat with a transition between the general need to knock cylindrical roller bearings inside and outside the ring are assembled with thrust ball bearings, including four-point angular contact ball bearings to withstand axial thrust radial Dimensions for the clearance fit can be loaded directly. Outer ring with roller and cage strike into the suction, exhaust end seat inner ring and rotor thermal jacket

6, bearing installation and clearance, clearance adjustment Machine bearing assembly and clearance adjustment