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High-speed precision bearing installation method

by:JNSN     2021-12-10
High-speed precision bearings are mainly used in high-speed rotating occasions with light load. Bearings require high precision, high speed, low temperature rise and low vibration, and a certain service life. It is often used as the supporting parts of high-speed electric spindle to be installed in pairs. It is a key accessory for high-speed electric spindle of inner surface grinder. Main technical indicators: 1. Bearing accuracy indicators: exceeding GB/307.1-94P4 accuracy 2. High-speed performance indicators: dmN value 1.3~1.8x106/min 3. Service life (average): >1500h High-speed precision bearing service life and installation The following matters should be paid attention to: 1. The bearing installation should be carried out in a dust-free and clean room, the bearing should be carefully selected, the bearing spacer should be ground, and the inner and outer ring spacers should be kept at the same height. , The parallelism of the spacer ring should be controlled below 1um; 2. The bearing should be cleaned before installation, the inner ring slopes upward when cleaning, the hand feels flexible, and there is no sense of stagnation. After drying, put in the specified amount of grease, if it is oil mist Lubrication should be put into a small amount of oil mist oil; 3. Bearing installation should use special tools, uniform force, no beating; 4. Bearing storage should be clean and ventilated, no corrosive gas, relative humidity not more than 65%, long-term storage should be protected regularly rust.
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