2015年8月19日星期三

ZYS ball bearing installation method

A ZYS ball bearing installation method: press-fit: the bearing inner ring and the shaft so that a tight fit, the outer ring with the bearing hole is relatively loose fit, can be pressed press the bearing on the shaft, then the shaft along with bearing fitted together the bearing hole, when the pressure mounted on the inner end surface of the bearing pad material is made of a soft metal mounting sleeve (copper or soft steel), bearing outer ring with the bearing hole tight fit, the inner ring and the shaft is loose When fit, the bearing can be pressed into the bearing hole, then assemble the outer diameter of the sleeve seat should be slightly smaller than the diameter of the hole. If the bearing ring and the housing bore and shaft are a tight fit, installation of interior and outer ring To simultaneously pressed into the shaft and housing bore, the assembly casing shall be constructed simultaneously charging tight end face bearing inner and outer rings.
Two ZYS ball bearing installation method: heating with: by heating bearings or bearing, the use of thermal expansion close fit into a song with the installation method is a commonly used method of installation and labor-saving method is suitable for this large amount of interference bearing. installation, before loading the bearing or separable heat bearing rings into the tank uniform heating 80-100 ℃, then remove from the oil loaded onto the shaft as quickly as possible in order to prevent the cooling inner face and shoulder fit not tight, you can then fasten the rear bearing axial cooling when the bearing outer ring and light metal bearing tight fit, using heat bearing hot charging method, can be avoided with the surface by scratches. When the tank is heated by bearing a certain distance away from the bottom of the gate should have a net, or with a hook hanging bearings, can not be put on the bottom to prevent impurities entering the bearing Shen or uneven heating, the tank must have a thermometer, strict control of the oil temperature must not exceed 100 ℃, in order to prevent tempering effect, reduce the hardness of the rings.
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