High speed and high precision linear bearings, mainly used for lighter loads the twirl, request bearing vibration of high precision, high speed, low temperature rise and a certain amount of longevity. Often high speed spindle bearing installed in pairs, is the key to high speed motorized spindle surface grinding machine Kit.
Main technical index:
1. bearings precision index: more than GB/307.1-94 P4 level accuracy
2. high-speed performance indicators: dmN 1.3~1.8X 106/min
3. life span (average): >1500 h
High speed and high precision linear bearing service life are closely related to installation, you should note the following:
1. bearing installation should be free of dust, clean room, linear bearings have been carefully matching, bearing spacers are ground, on the premise of maintaining inner and outer rings ring high, intermediate ring parallelism of 1um or less should be controlled;
2. linear bearing should be thoroughly cleaned before installing, cleaning on the inner slopes, feel should be flexible, no sense of stagnation after drying, put under oil, in the case of oil mist lubrication oil should be put in a small amount of oil mist;
3. the bearing should be installed using special tools, uniform, do not beat;
4. bearing storage should be clean and ventilation, no corrosive gases, relative humidity does not exceed 65%, long-term storage should be rust on a regular basis.