Deep groove ball bearing installation method one: press-in fit: the inner ring of the bearing and the shaft make a tight fit, the outer ring and the housing bore are loose fit, the bearing can be pressed on the shaft first, and then the shaft is loaded into the housing bore together with the bearing, when pressing, on the end face of the inner ring of the bearing, pad a soft metal material made of mounting pipe (copper or mild steel), the outer ring of the bearing and the housing bore are tightly fitted, the inner ring and the shaft are loosely fitted, the bearing can be pressed into the housing bore first, the outer diameter of the matching tube should be slightly smaller than the diameter of the housing bore. If the bearing ring is closely matched with the shaft and housing bore, the installation inner ring and outer ring should be pressed into the shaft and housing bore at the same time, and the structure of the matching pipe should be able to clamp the end face of the inner ring and outer ring of the bearing at the same time.
Deep groove ball bearing installation method two: heating fit: by heating the bearing or housing, the thermal expansion is used to transform the tight fit into a loose fit installation method. It is a common and labor-saving installation method. This method is suitable for the installation of bearings with a large amount of interference, before hot installation, the bearing or separable bearing ring into the oil tank evenly heated 80-100 °C, and then taken out of the oil as soon as possible installed on the shaft, in order to prevent the inner ring end face and shaft shoulder after cooling is not tight, the bearing can be cooled and then axial tightening. When the outer ring of the bearing is closely matched to the light metal housing, the hot mounting method of heating the bearing housing can be used to avoid abrasion of the mating surface. When heating the bearing with the oil tank, there should be a grid at a certain distance from the bottom of the box, or hang the bearing with a hook, the bearing can 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, and the oil temperature should not exceed 100 °C to prevent the tempering effect and reduce the hardness of the ferrule.