Reasonable properly installed imported SKF bearing will extend its life

The stand or fall of imported SKF bearing installed or not, will influence the accuracy, bearing life and performance. Therefore, please fully study the installation of the bearings that carried out in accordance with the operating standards including the following items, please import SKF bearing installation. Low, cleaning SKF imported bearings and related parts, ( To have grease lubrication of the bearing and oil seal or dust cover on both sides, seal bearing without cleaning before installation. ) Low, check the size of the related parts and finishing low import SKF bearing, installation method should be installed according to the bearing structure, size and cooperate with properties of bearing parts, pressure should be directly in the tight fit on the ring width, shall not be passed on roller pressure, bearing installation commonly adopt the following methods: a. Force fit imported SKF bearing inner ring and shaft tight fit, outer ring and bearing hole is a loose fit, available press will import SKF bearing to be pressed on the shaft, then put the axis along with imported SKF bearing load bearing hole, when pressed on the SKF bearing inner ring end face, cushion the assembling casing made of a soft metal materials ( Copper or mild steel) 。 Imported SKF bearing outer ring and bearing hole tight fit, inner ring and the shaft is a loose fit, can be imported SKF bearing pressed into the bearing hole first, then assembling casing diameter should be slightly less than the diameter of a hole. If import SKF bearing ring with the shaft and hole is a tight fit, install indoor ring and outer ring to pressure into the shaft and hole, at the same time assembling casing structure should be able to at the same time, so the bearing inner ring and outer ring end face. b。 Heating with heating by imported SKF bearing or bearing seat, by using thermal expansion will fit into a loose fit installation method. Installation method is a kind of common and energy saving. This method is suitable for interference quantity larger import SKF bearing installation, the imported SKF bearing before hot charging type or separable bearing ring into the fuel tank 80 - uniform heat 100 ℃, and then loaded on the shaft, as soon as possible out of the oil to prevent inner ring after cooling end face and shoulder joint is not tight, bearing axial fastening again after cooling. SKF imported bearing outer ring and light metal SKF bearing seat tight fit, by heating the hot charging method of the bearing, can avoid the mating surface scratch. Tank heating imported SKF bearing, should be at a certain distance from the bottom of a mesh, or hanging hooks in the bearing, SKF bearing import cannot be on the bottom, in case of heavy impurities into the imported SKF bearing or uneven heating, fuel tank must have a thermometer, strictly control the oil temperature shall not exceed 100 ℃, in order to prevent the tempering effect, reduce the hardness of the ring. c。 The installation of the thrust bearing thrust bearing of the matching of the thorough and axis is commonly transition fit, seat and bearing holes with the general as clearance fit, so the imported SKF bearing is easy to install, two-way bearing axial spring should be fixed on the shaft, in order to prevent the relative to the axis of rotation. Imported SKF bearing installation method, usually is the situation of the axis of rotation, so the inner ring cooperate for win cooperate with shaft, with the imported SKF bearing outer ring and bearing chamber for clearance fit. Import SKF bearing heating temperature, to bearing size, the required amount of interference, refer to figure 3. Hot charging work related matters needing attention, as follows. ( a) SKF bearing import shall not exceed 120 heating & # 65439; C。 ( b) Don't touch the bottom of the tank for imported SKF bearing, SKF bearing import should be on the metal frame, or lift. ( c) In order to prevent operation, because of the inner ring temperature drop and difficult to install, heating SKF imported bearings should be higher than the temperature required 20 ° C - 30°C。 ( d) After installation, imported SKF bearing cooling, the width direction also will shrink, so want to use the method of shaft nut or other appropriate, lock it, in case the inner ring with imported SKF bearing block shoulder gap. Induction heating device in addition to the oil hot charging, using the electromagnetic induction principle of induction heating device is also widely used. Induction heating devices, built-in excitation coil, due to the electromagnetic induction effect, after the power supply current to the heating body ( Bearing) The heat produced by the impedance of the imported SKF bearing itself. So you can in a short period of time, without fire, oil evenly heating. SKF imported bearings of hot charging high work efficiency, clean. Packing and unpacking the frequent occasions, such as roll imported SKF bearing, railway vehicle axle box with cylindrical roller bearing, the special induction heating device can be used for installation, remove the inner ring.