INA bearings installed good or bad, will affect the combination of the accuracy of the bearing life and performance. , The installation of the bearing, in accordance with the operating standards include the following items, including the bearing installation.

If the assembly on the surface of the shaft and housing bore scratches, burrs, rust, or solid particles (such as debris, sand, mud) exist, will not only bearing difficult to install and the installation location is incorrect, and solid particles, such as falling into will play a grinding role in bearing, INA Bearing rotation that can wear the combination of injuries or abrasions bearing surface must be carefully checked before installation, such as the above defects, should be amended. Such as the use of oil file to remove burrs, raised touch marks, rust, and with fine emery cloth, polish, and if the cleaning of solid particles, dirt, etc.. Note that with sealed bearings can not be used in conjunction with this Law cleaning, sealed within the intact non-cleaning.

First, the size requirements of the stringent precision

The rolling bearing steel require high dimensional accuracy, this is because most of the combination of bearing parts to go through the pressure molding. In order to save raw materials and improve labor productivity, the vast majority of bearing rings must be forged to shape, the ball is cold heading or hot forming, the small size of the roller is cold heading forming. If the steel is not high dimensional accuracy, it is impossible to accurately calculate the size and weight of the cutting, and thus can not guarantee the quality of the product of the bearing parts are likely to cause damage to manufacturing equipment.

Second, in particular the strict purity requirements

The purity of the steel is refers to the steel of impurities, the higher the purity, non-metallic inclusions in steel, the less. Bearing steel, oxides, silicates, and other harmful impurities and early bearing fatigue spalling, the combination of bearing life is reduced a great relationship. Brittle impurities harm, seriously affecting the quality of the appearance of bearing finishing flaking off easily from the metal substrate during processing.
   
The mating surfaces should be cleaned with clean gasoline, kerosene, toluene or xylene solution clean and dry with a clean rag, and then coated with a thin layer of lubricant, so make the installation more convenient operation.
   
Prior to installation of the combination of bearing, should use the appropriate measuring tool according to the technical requirements of the provisions in the design drawings, check the shaft and housing bore and the relevant parts of the processing quality (such as dimensional accuracy, shape accuracy and surface roughness, etc.).
   
Cleaning a large number of INA bearings, the first temperature is 90 ~ 100 ℃ hot oil poured hot to make the package oil melt, with no front mouth and do not drop crumbs tools to dig the net all the old oil, then pour hot a few minutes, and then use kerosene flush to the oil, and finally re-use gasoline to clean it again. Film gloves bearing on the workbench clean cloth or paper to dry after washing clean, you should wear.
   
Pro open bearing installation package, it would be immersed in the above gasoline and other liquid hand gently rotating, to ensure that the cage, the rolling element and raceway surface of the package the oil thoroughly washed clean.

INA bearings in the assembly for axial load, its wide range of applications. Although the operation of the combination of bearing installation is relatively simple, but often errors occur when the actual repair, bearing tight loop and loose ring installation location is incorrect, resulting in bearing useless, the journal quickly wear. Tight ring inner ring and the journal for the transition co-driven by a tight ring when the axis of rotation, and friction with the stationary parts face by the axial force (Fx), the friction torque is greater than the inside diameter with the moment of resistance, resulting in tight ring force the rotation axis with the surface, exacerbated by the journal wear.
 



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