Precision SKF bearing installed correctly rust method

A, correct installation precision SKF bearing for installation precision SKF bearing products, to install a should pay attention to some things, if we get good is not installed, can make the SKF bearing life is not long. So if you want to install good SKF bearing, then you should understand the installation method of SKF bearing, so as to ensure SKF bearing damage during the installation process. I'd like to introduce the following comprehensive SKF bearing installation accuracy calibration method: 1, the measurement axis and SKF bearing the size of the hole, to determine the fit precision of SKF bearing, cooperate with the requirements as follows, ( 1) Inner ring and the shaft to interference fit, interference was 0 ~ + 4 microns ( At light load, high precision of 0) ; ( 2) Outer ring with SKF bearing hole clearance fit, the interval 0 ~ + 6 microns ( But the SKF bearing with angular contact ball bearing on the free end, still can increase the clearance) ; ( 3) Shaft and hole surface roundness error in 2 microns ( 4) SKF bearing the face of baffle used parallelism in 2 microns ( 5) Shaft shoulder end foreign face beat in 2 microns ( 6) SKF bearing axis hole block shoulder to beat in the 4 microns ( 7) Spindle axis inside the front cover end face beat in 4 microns, the second, rust prevention methods are rust the surface pretreatment methods of content: 1) Surface cleaning: cleaning must be rust in accordance with the nature of the surface and the conditions, select the appropriate method. There are usually used solvent cleaning, chemical cleaning and mechanical cleaning. 2) Surface available filter after dry clean dry compressed air blow dry, or in 120 ~ 170 ℃ dryer for drying, also can use clean cloth to wipe dry. Coating anticorrosive oil method 1) Soak method: small SKF bearing by soaking in antirust oil, make its surface adhesion on a layer of anti-rust oil. The temperature of the oil film thickness can be controlled by anti-rust oil or viscosity to achieve. 2) Brush method used for soaking or spraying outdoor construction equipment or not apply special shaped products, brush should not only pay attention to not build up, also should pay attention to prevent leakage. 3) Spray a few large rust cannot be oiled by soaking method, generally about 0. 7 mpa pressure filtering compressed air spraying where clean air. Spray method used solvent XiShiXing rust-proof oil or thin layer of anti-rust oil, but must use perfect fire protection and labor protection measures. SKF bearing installation is correct, affects the precision, life and performance. Therefore, design and installation of assembly department for SKF bearing to fully research. Hope to work in accordance with the standards for installation. Operation standard project usually is as follows: ( 1) , cleaning SKF bearing, SKF bearing associated parts ( 2) And check the size of the associated components and finish machining condition ( 3) , installation, 4) After installation, SKF bearing inspection ( 5) , supply lubricant hope before the installation, just open the SKF bearing packing. General grease lubrication, cleaning, not directly fill grease. Lubricating oil, ordinary also don't have to be clean, but the instrument with or high speed with SKF bearing, etc. , to be washed with clean oil, remove rust inhibitor on SKF bearing. Remove the rust inhibitor of SKF bearing, easy to rust, so can't place. Also, has the SKF bearing grease sealed, not directly use cleaning. SKF bearing installation method, because the SKF bearing structure, cooperate, conditions vary, in general, as more as the axis of rotation, so the inner circle need interference fit. SKF bearing, cylinder hole is multi-purpose the pressure into the press and or multi-purpose hot charging method. Taper hole, installed directly on the taper shaft, or use the socket installation. When installed on the shell, clearance fit more commonly, outer ring have surplus quantity, usually use the pressure into the press and or have shrink fit method of cooling after installation. Use dry ice as coolant, shrink fit installation, the moisture in the air condenses on the surface of SKF bearing. So, need a good rust prevention measures.