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High precision angular contact ball bearings, mainly used for high speed rotatingoccasions load lighter, requirements of bearing high precision, high speed, low temperature rise and low vibration and certain service life. Often used for high-speed electric spindle bearing installed in pairs, is on the inside surface grinderspindle key accessories.

The main technical indicators:

1 bearing precision index: more than GB/307.1-94 P4 level precision

2 high-speed performance index: dmN 1.3~1.8x 106 /min

3 life (average): > 1500 H

High speed angular contact ball bearing service life have a great relationship with the installation, should pay attention to the following items:

1 bearing should be installed in a clean, clean room, the bearings should becarefully selected, bearing ring after grinding, in keeping with inner and outer ringspacer and other high, spacer parallel degree should be controlled below 1um;

2 bearing installation should be clean, cleaning the inner ramp up, hand sensingflexible, no stagnant sense, dried, placed in a prescribed amount of grease, oil mist lubrication should be placed in a small amount of oil mist and oil;

3 bearing installation should adopt special tools, uniform stress, is forbidden to beat;

Shall be kept clean and ventilated 4 bearing, non corrosive gases, relative humidity of not more than 65%, long-term storage should regularly rust