Luoyang bearing should pay attention

1, surface cleaning: cleaning must be in accordance with the nature of the surface rust and the prevailing conditions, the appropriate method is selected. Commonly used solvent cleaning, bearings for sendzimir mills chemical treatment and mechanical cleaning method to clean. 2, Luoyang bearing the surface was cleaned by washing by filtration and dried in the drying compressed air, or a dryer 120 ~ 170 ℃ is dried, dry clean gauze can also be used. Second, anti-rust oil coating method: 1, soak method: Soak in some small items using anti-rust oil, allowed a layer of rust on the surface adhesion method grease. The film thickness can be achieved by controlling the temperature or viscosity rust preventive oil. 2, brush or spray for NA immersion outdoor construction equipment or special shape products, Thin section bearing  should pay attention when brushing does not produce accumulation, but also pay attention coated to prevent leakage. 3, spray some large rust-proof material coated with oil immersion method can not be used, Luoyang bearing usually with about 0.7Mpa pressure spraying compressed air filter in the air cleaner place. Spray application of anti-rust oil or solvent dilution thin rust oil, but it must be used to improve fire safety and labor protection measures.

such as aerospace china bearings, machine tool spindle speed precision bearings

Since the implementation of the "two sessions" of economic growth targets proposed implementation of urban infrastructure construction projects around the climax off, started intensive railways, highways, subways, affordable housing, water, ports, airports and other major projects, prompting the construction machinery manufacturing recovery industry, stimulating demand for construction machinery, tapered roller bearing  market demand will subsequently released.
From recent Gcr15 spindle steel downstream users in March production plan research situation, automobiles, marine vessels, oil pipeline industry to maintain stable operation; engineering Crossed-roller-bearing machinery, bearings industry increased. Downstream industry demand for effective bearing steel increased compared with February. For example Gcr15 bearing steel companies in March contract orders generally good condition. Improved downstream demand is conducive Gcr15 bearing steel market stability, bearing steel prices steady rise is a major supporting force.
Bearing Manufacturing Industry Development of China's strong momentum of steady bearing steel market will angular contact bearing positive effects to the good. A number of significant growth in demand for high-end bearings, such as aerospace bearings, machine tool spindle speed precision bearings, ball bearing precision angular contact ball bearings, high-speed spindle bearings, precision bearings for machine tools photovoltaic industry, turntable bearings, wind power bearing, Shield machine bearings, rolling mill bearings, high-speed rail bearings, automotive bearings, crane sheave bearings, turbocharger bearings, hydrodynamic bearings and so on

The basic set of clearance values ​​for general working conditions, should be preferred

bearing and shaft and housing bore with the tightness will lead to changes in the bearing clearance values. After the general bearing clearance will reduce the value of the installation ;
during operation of the special bearing body due to different thermal conditions of the shaft and the housing , between the inner ring and the outer ring to generate a temperature difference , which will lead to reduced clearance value ;
Due to the shaft and housing material due to different coefficients of expansion , will lead to reduced or increased clearance values.

Radial bearings usually choose the most suitable operating clearance value is the fundamental group bearing clearance clearance values ​​as specified in the standard . The basic set of clearance values ​​for general working conditions, should be preferred. When the radial bearings working under special conditions not using the basic set of clearance, clearance optional secondary group values ​​. Groups such as 3,4,5 clearance tapered roller bearing values ​​deep groove ball bearings for bearing and shaft and housing bore adopt tighter than normal interference fit with the bearing inner and outer rings or large temperature difference between the work of the mechanical components . Inclination of the axis of the center and the shell hole in the center line of the larger , and axial load in order to increase its ability to improve the bearing speed limit , and lower friction bearings and other working conditions , the tour group will also adopt 3,4,5 gap value. Precision requirements or restrictions for axial rotation axis swimming , the general group 2 clearance values ​​( smaller clearance value ) of the bearing , if necessary, to give some pre- load " preload " to improve the rigidity of the shaft.