High speed precision angular contact ball bearing service life had a lot to do with the installation, the following should be paid attention to1. The bearing installation should be clean, clean room, bearing should be carefully selected, bearing with baffle passes through grinding, and in keeping the baffle on inner and outer contour under the premise of baffle parallelism should be controlled below 1 um.2. Bearing should be cleaned before installed and when cleaning inner ring ramp up, flexible hand induction, no stagnation, air-dried, into the specified amount oil, if oil mist lubrication oil should be in a small amount of oil mist;3. The bearing installation should use specialized tools, force uniform, do not knock;4. Bearing deposit should be clean and ventilated, non-corrosive gas, relative humidity is not more than 65%, long-term storage should be rust on a regular basis.