By heating the bearing or the TIMKEN bearing seat, 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 large interference. Put the bearing or separable bearing ring into the oil tank and heat it evenly at 80-100°C before hot assembling, and then take it out of the oil and install it on the shaft as soon as possible. To prevent the inner ring end face and the shaft shoulder from not fitting tightly after cooling, the bearing can be axially tightened after cooling. When the outer ring of the bearing is tightly fitted with the light metal bearing seat, the hot-fitting method of heating the bearing seat can be used to avoid scratches on the mating surface. When heating the bearing with an oil tank, there should be a grid at a certain distance from the bottom of the box, or the bearing should be hung with a hook. The bearing cannot be placed on the bottom of the box to prevent sinking impurities from entering the bearing or uneven heating. There must be a thermometer in the oil tank. Strictly control the oil temperature not to exceed 100°C to prevent the occurrence of tempering effects and reduce the hardness of the ferrule.

The fit of the thrust bearing and the shaft is generally a transition fit, and the fit of the seat ring and the bearing seat hole is generally a clearance fit. Therefore, this kind of bearing is easier to install. The central shaft spring of the two-way thrust bearing should be fixed on the shaft to prevent relative The shaft rotates. The installation method of the bearing, in general, the shaft rotation is the majority, so the fit between the inner ring and the shaft is an over-win fit, and the fit between the outer ring of the bearing and the bearing chamber is a clearance fit.