High precision angular contact ball bearings, mainly for high-speed rotation where the load lighter, requiring high precision bearings, high speed, low vibration and low temperature rise a certain life. Often for high-speed spindle bearing components installed in pairs, the inner surface grinder is the key to high-speed spindle accessories.

      The main technical indicators:

      1. Bearing accuracy indicators: more than GB/307.1-94 P4 level precision

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

      3 life (average):> 1500 h <BR> high precision angular contact ball bearing service life of a great relationship with the installation, you should note the following:

      1 bearing installation should be clean, clean room for the bearing to be carefully matching, bearing with spacers to go through the ground, while maintaining high inside and outside the ring spacer under the premise of parallelism across the ring should be controlled in 1um the following;

      2 bearings should be cleaned before installation, cleaning up the inner slope, feel should be flexible, without a sense of stagnation, dried, placed in a specified amount of grease, oil mist lubrication should be placed in the case of a small amount of oil mist;

     3 bearings installed special tools should be used, even by force, non-beat;

     4 bearings should be kept clean and ventilated, non-corrosive gas, no more than 65%relative humidity, long-term storage should be periodically rust.

     SKF bearing noise occurs what are the 10 reasons

     1. SKF bearing and shaft is too loose (too small diameter of the shaft or sleeve is not tightened);

     2. SKF bearing clearance is too small, too tight rotation (sleeve was tightened too far);

     3. SKF bearing noisy (roller or ball skid end result);

     4-axis thermal elongation is too large (bearing additional axial load by statically indeterminate);

     5 shoulder too (across the seal and bearing friction);

     6 seat shoulder block the hole is too large (the bearing seals badly distorted hair);

     7 labyrinth seal gap is too small (with shaft friction);

     8 lock washers tooth bending (bearings and friction encountered);

     9 inappropriate rejection of the position of the oil ring (flange and friction encountered);

    10. Ski bearing by the additional load (limp axial bearings are tight, or a fixed end of the shaft has two bearings)



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