Led to increased temperature cylindrical roller bearings mainly include:
First: lubricating oil quality is worse? If the lubricating oil viscosity results in cylindrical roller bearing temperature rise;
Second: bearing body Assembly if too tight, inadequate clearance will also lead to the FAG bearing temperature rise;
Third: the bearing Assembly too tight will cause bearing temperatures;
IV: housing washer on the shaft or rotating within the shell can also cause bearing temperatures;
V: bearing load is too large will cause bearing temperatures;
Sixth: If bearing cages, or scroll fragments, can also cause bearing temperatures.
Cylindrical roller bearings pressed into rotational flexibility should be no block. If there are clearly not flexible rotation, then axis dimensions are too big, the tolerance to cut. Like FAG bearing onto the shaft by hand after turning there is a clear "rustle" sense, the tolerances of the shaft may be too large or the roundness of the shaft well. So when you control the shaft and housing tolerances you want to control the roundness, many domestic manufacturers currently control only tolerance, not to control the roundness.
FAG bearings are high-precision products, such as improper Assembly can easily cause damage to the bearing Raceway, cause damage to the bearing. Cylindrical roller bearing Assembly should have dedicated mold, cannot be beat at will, force in pressing axis only small circles, pressing circle only large ring bearing. Assembly call for pneumatic or hydraulic, at the time of pressing die outside to level up or down status, such as tilt can cause mechanical damage of bearing Raceway and the bearing rings.
Cylindrical roller bearings mounted on the rotor dynamic balance of dynamic balancing is easy when iron filings into the cylindrical roller bearings are produced internally, so it is best to install FAG bearing dynamic balancing before. Some manufacturers for ease of Assembly, Assembly in the bearing room painted with some oil or grease lubrication effects, but in many cases the operator is difficult to control, if oil or grease in the bearing Interior accumulates more easily along the axis of rotation of the bearing into the FAG bearings inside. Bearing room it is best not to paint oil or grease, such as non-coating is not available to control shall not be bearing Interior accumulates.
Paint rust is characterized by multiple sealed-type motor, motor Assembly, sounds very good, but after some time within the warehouse, the electrical noise change very large, split cylindrical roller bearings have serious rust. Many manufacturers believe that FAG bearing problems, through our advocacy, motor factory is now aware of the main insulation paint problems. Varnishes used for this issue mainly because of volatile acids under certain temperature, humidity of the formation of corrosive substances, which cause corrosion of bearing Raceway of cylindrical roller bearing damage. The problem can only be good choice of insulating varnish, and assembled in the ventilation after drying after a period of time.


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