Bearing accuracy level: in rotary tillage work at both sides bearing

To launch the main bearing as an example, the main bearing is a key part of aircraft engine, engine blade is mainly composed of composite material, not too big compressor blade requirements. The surface finish, this allows a P precision grade, we this product also won the German Humboldt, chengdu lijun and citic heavy industry recognition is recommended. Remove, in reverse order, yaw gear to choose appropriate materials, and hardness, modulus, tooth surface contour in order to protect and the life of the matching between driving gear. In addition, cleaning oil often should keep clean, large bearing can't rotate with the hand, pay attention to check the rolling element and raceway surface, cage and guard surface appearance, the importance of bearing high must check carefully. Can improve the lubricants and lubrication method, correct choice of bearing, research cooperation, bearing clearance, and preloading, improve the sealing device, check the shaft and the accuracy of bearing box or improve installation method to solve. Burnt hole mainly formed in the ring heating process before forging, due to the heating furnace temperature 'run', the operator does not strictly enforce process discipline ceiling causes such as heating temperature is higher than the processing temperature, should be through regular calibration furnace temperature curve, operations staff strictly enforce process discipline, monitoring the process discipline and other means to reduce the probability of burnt. X— — After taking crackle is made, the metallographic specimen observation, crackle, deep basic perpendicular to the surface, which found no material mixed distribution, basic dimensions as amended in accordance with ISO standards; , amount of interference is made up of inner ring in cone diameter of axle, set set, or withdrawal of the axial forward distance on the decision. Because of uneven grinding wheel internal organization, even if the original balance good grinding wheel, in use process will produce new imbalance, so the good use in the automatic balancing device in the process of grinding. Occur in the bearing outer ring of bearing area, due to the outer ring is usually fit for clearance fit with the bearing box holes, combined with the bearing housing is a flexible type and ellipse parts, under the alternating load and impact load easily cause fatigue fracture. Oil mist lubrication mixing loss and temperature rise is small, fuel-efficient, less impurity in oil, and oil mist produced by the jet flow has a cooling effect, can effectively prevent the impurities or impurities. , we need to consult the system specifications, when bearing inside diameter greater than mm, or the interference fit is bigger, a heating method is adopted to make the bearing inner hole expansion and then to heat. When in pneumatic sweep, shaft sleeve, pitting problems fitting surface is point contact repair process, is not a surface contact, leaving long-term safe operation of the equipment, lead to the main shaft of cone and the handle of the cone can't cooperate, mechanical spindle maintenance: reduce the working temperature of bearing, frequently used way is to lubricating oil.