INA bearing the preparation before installation and the matters needing attention

INA bearings can usually install space is limited. In most cases, the axis ( Or INA bearing diameter) Is based on mechanical design or other design limitations. Bearing type and size, so the choice in New Territories north total area decision is based on the diameter of the bearing. Therefore, the main dimensions of the standard INA bearing table are compiled according to international standard diameter size. New Territories north total area in many forms of standard bearing size, preferably in mechanical equipment design using the standard bearing ( INA bearing, the design is very easy to buy here, some patterns, New Territories north indeed total area bearing catalogue, but some non-standard INA bearings in mainland China there is no stock, futures will be very long, sometimes, make the INA bearing load of cost and time to consider the nature of the load of the rest of the replacement cost) The New Territories north the choice of total area, size, direction is changing. Normally, the size of the basic load rating displayed in the table. However, axial load and radial load, etc. , can also choose the appropriate INA bearing is an important factor. Size quite a long time, the New Territories north total ball and roller bearings, needle roller bearing, New Territories north total area usually have higher load capacity and large vibration and shock loads. INA bearing dimensional accuracy and rotation accuracy is based on the international organization for standardization ( ISO) And JIS standards. High precision, high speed machine, it is suggested that in five years or more precise bearing, deep groove ball bearings, angular contact ball bearing or cylindrical roller bearing is suitable for the higher the accuracy of the machine. Rigidity, bearing roller and raceway contact pressure will produce elastic deformation. Some machines need to reduce the elastic deformation. Than the ball bearing roller bearings have a small elastic deformation. Bearing cleaning 1, use detergent to neutral aqueous diesel or kerosene, according to the need to sometimes use warm lye, etc. No matter use which kinds of detergent, often should filter clean. 2, after cleaning, immediately on the INA bearing coating anticorrosive oil or antirust grease. Bearing under 3, in order to determine whether to use, to inspect the dimension precision, rotating accuracy, internal clearance and mating surface, raceway surface, cage and seal rings etc. Judgment standard according to the mechanical properties and important degree and inspection cycle. If you have the following injury, bearing shall not be used again, must be replaced. ( 1) Before the INA bearing installation, should use the appropriate measuring tools according to the provisions of the technical requirements on the design drawing check the shaft and hole and machining quality of parts ( Such as dimensional accuracy and shape accuracy and surface roughness, etc. ) 。 ( 2) Shaft and the bearing hole assembly there such as bruising, burr, rust stain on the surface or solid particles ( Such as abrasive dust, sand, clay) Such as existence, not only can make the bearing installation difficulties and make the installation position is not correct, and solid particles such as falling into INA bearings grinding effect, when INA bearing rotating grinding or bruising INA bearing surface of the work, so must be carefully checked before the installation, if found to have the above defects, should be revised. For example using oil file to remove burrs, bump touch mark, rusty spot, with fine abrasive cloth lighting, and like a clean solid particles, dirt, etc. ( 3) Should be assembled with clean the surface of the gasoline, kerosene, toluene and xylene solution washing clean, with dry clean duster cloth, and then coated with a thin layer of lubricating oil, it can make the operation more convenient installation. ( 4) When installed in the open the INA bearing encapsulation, put it into the liquids such as gasoline with handle gently gently turning, to ensure the cage, encapsulated oil on the surface of the rolling element and raceway thoroughly washed clean. ( 5) When cleaning a lot of INA bearings, with the first temperature is 90 ~ 100 ℃ heat oil pour hot to melt encapsulated oil, at the same time with seamless all mouth and no net exfoliation tools to dig the old oil, then pour hot a few minutes, then rinse with kerosene oil, clean with gasoline again finally. After washing clean, the bearing on film gloves should be worn in the workbench of dry clean cloth or paper. ( 6) Note with sealed bearing do not clean with this law, sealed internal cleaning should remain the same.