Extend bearing service life from the installation

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Bearings installed good or bad, will affect the accuracy of the bearing, the life and performance. Therefore, fully research the installation of the bearings, the bearings installed in accordance with the standards o f operation, including the following items.
Cleaning bearings and related parts, (prior to the installation of the sealing ring bearing has grease lubricated bearings, bilateral with seals or dust cover, without washing.)
2, check the relevant parts of size and finishinghigh speed bearings
3, the installation method
Bearing should be installed according to the bearing structure, size and bearing components with nature, pressure should be applied directly to the tight fit ferrule end face shall not pass through the rolling pressure, the bearing installation generally use the following method:
a press-fit
Bearing inner ring with the shaft so that a tight fit, the outer ring and bearing holes than a loose fit, available presses the bearing pressure mounted on the shaft, and the shaft together with the bearing load bearing hole with press-fit in The bearing inner end surface of the pad o f a soft metal material do assembly casing (copper or soft steel).
The bearing outer ring and bearing hole is a tight fit, the inner ring and the shaft for the bearing to be pressed into the bearing hole than loose fitting, then assembled the outside diameter of the casing should be slightly smaller than the diameter of the housing bore.
Ring and the outer ring of the bearing rings and the shaft and the housing bore is a tight fit when installed indoor pressed into the shaft and the housing bore, to The assembly casing structure should be able to charge tight end face of the bearing inner ring and the outer ring.double row angular bearing
b heating with
Thermal expansion will be a tight fit to change by heating the bearings or bearing installation method is loose fitting. Is a common and effortless installation method. This method is suitable for the installation of larger be arings of the amount of interference, before mounting the heat bearing or separable bearing the ferrule into the tank in the uniform heating to 80-100 ° C, and then removed from the oil onto the shaft as soon as possible, in order to prevent cooling inner ring end face and shaft shoulder fit is not tight, bearing cooling axial fastening. Bearing outer ring and light metal bearing is a tight fit, heating chock hot charging method, can be avoided with the surface by abrasion.thin bearing
Heating bearings with fuel tank, from the bottom at a certain distance should be a net gate, or hanging with hooks bearing, the bearing can not be put on the bottom to prevent Shen impurities into the bearings or uneven heating, the tank must have a thermometer, strictly control the oil temperature shall not exceed 100 ° C in order to prevent the backfire effect, reduce the hardness of the ferrule.
c. thrust bearing ins tallation
The comprehensive thrust bearing and shaft with generally transition with seat bearing hole with clearance fit is generally easier to install this bearing, bi-directional thrust bearing axis springs should be fixed on the shaft to prevent relative on the shaft is rotated.
Bearing installation method, under normal circumstances, the axis of rotation of the majority, and therefore for the inner ring and shaft with win with the bearing outer ring of the bearing chamber with clearance fit.deep groove ball bearing