2013年8月12日星期一

cleaning INA plain bearings and related parts


About INA crossed roller bearings imported detailed installation steps, we know that INA plain bearings are relatively common, proper installation method can make a better functioning of INA bearings, below said lower bearings INA bearings on the installation steps.
1, cleaning INA plain bearings and related parts
Already greased bearings INA bearings with seals or dust cover and bilateral, seals bearing joints before installation without washing.
2, check the relevant parts of the size and finishing conditions
3, the specific INA Bearing installation methods: INA bearings joint bearing joint bearing installation should be based on the structure, size and spherical plain bearings with the nature of the components, the pressure should be directly added to the tight fit was ferrule end face, not through the rolling transmit pressure, joint bearings installed generally use the following methods:
a, the installation of tapered bore bearings
Tapered bore bearings can be directly mounted on a tapered journal, or load the adapter sleeve and withdrawal sleeve cone, with the tightness of the availability of its joint bearing radial clearance reduction measure, therefore, before installation Precision bearing should be measured radial clearance, the installation process should be measured regularly clearance in order to achieve the required clearance reduction until installation has generally adopted a locknut installation, heating installation methods may also be used.
b, thrust bearings installed
Comprehensive thrust bearing and shaft with generally transition fit, and joint bearing seat hole with clearance fit generally, so this joint bearing easier to install, two-way thrust bearings on the shaft central axis of spring should be fixed, to prevent rotation relative to the shaft. Joint bearing installation method, under normal circumstances is mostly the case of shaft rotation, so the inner ring and shaft with an exaggeration win cooperation, joint bearing joint bearing outer ring and the mating chamber for the clearance fit.
c, press-fit
Joint bearing inner ring and the shaft so that a tight fit, the outer ring and the bearing hole joints are more loose fit, use a joint press bearings will be pressed onto the shaft, and the shaft together with the joint bearing joint bearing hole mount , the press-fit bearing inner end surface of the joint, a soft metal material of pad assembly casing (copper or soft steel), the assembly of the casing diameter should be slightly larger than the journal diameter, outside diameter should be smaller than the diameter bearings slightly smaller than the inner wall, in order to avoid pressure on the retainer. Joint bearing joint bearing outer ring and housing bore a tight fit, the inner ring and the shaft for the more loose fit, can be pressed into the first joint bearing joint bearing hole, then the assembly should be slightly smaller than the outside diameter of the casing bore diameter. If the joint bearing ring and shaft and housing bore are a tight fit when installing the indoor ring and the outer ring to simultaneously pressed into the shaft and housing bore, the assembly casing shall be constructed simultaneously charge tight joints bearing inner and outer face .
d, heating with

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