Installation method I of deep groove ball bearing: press fit: the inner ring of the bearing fits tightly with the shaft. When the outer ring fits loosely with the bearing seat hole, press the bearing onto the shaft with a press, and then install the shaft and the bearing together into the bearing seat hole. When pressing, pad an assembly sleeve made of soft metal (copper or mild steel) on the end face of the bearing inner ring. The outer ring of the bearing fits tightly with the bearing seat hole. When the inner ring fits loosely with the shaft, The bearing can be pressed into the bearing seat hole first. At this time, the outer diameter of the assembly sleeve should be slightly smaller than the diameter of the seat hole If the bearing ring is tightly matched with the shaft and seat hole, the inner ring and outer ring of the installation shall be pressed into the shaft and seat hole at the same time, and the structure of the assembly sleeve shall be able to hold the end faces of the bearing inner ring and outer ring tightly at the same time.
Installation method 2 of deep groove ball bearing: heating fit: it is a common and labor-saving installation method to convert tight fit into loose fit by heating the bearing or bearing seat and using thermal expansion This method is suitable for the installation of bearings with large interference. Before hot installation, put the rings of bearings or separable bearings into the oil tank for uniform heating at 80-100 ℃, and then take them out of the oil and install them on the shaft as soon as possible. To prevent the end face of the inner ring from not fitting tightly with the shaft shoulder after cooling, the bearings can be tightened axially after cooling When the outer ring of the bearing fits tightly with the bearing seat made of light metal, the hot installation method of heating the bearing seat can prevent the mating surface from being scratched. When heating the bearing with oil tank, there should be a grid at a certain distance from the bottom of the box, or the bearing should be lifted with a hook. The bearing should not be placed on the bottom of the box to prevent impurities from entering the bearing or uneven heating. There must be a thermometer in the oil tank. The oil temperature should be strictly controlled to not exceed 100 ℃ to prevent backfire effect and reduce the hardness of the ring.
