Installation method of deep groove ball bearings

Release time:

2023-09-08

Deep groove ball bearing installation method 1: Press fit: When the inner ring of the bearing is tightly matched with the shaft, and the outer ring is loosely matched with the bearing seat hole, a press can be used to press the bearing onto the shaft first, and then install the shaft together with the bearing. Put them into the bearing seat hole together. When pressing, place an assembly sleeve made of soft metal material (copper or mild steel) on the end face of the inner ring of the bearing.

Deep groove ball bearing installation method 1: Press fit: When the inner ring of the bearing is tightly matched with the shaft, and the outer ring is loosely matched with the bearing seat hole, a press can be used to press the bearing onto the shaft first, and then install the shaft together with the bearing. Put them into the bearing seat hole together. When pressing, place an assembly sleeve made of soft metal material (copper or mild steel) on the end face of the inner ring of the bearing. The outer ring of the bearing and the bearing seat hole fit tightly, and the inner ring and the shaft are When the fit is relatively loose, 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, the shaft and the seat hole are both tightly fitted, install the indoor ring and The outer ring should be pressed into the shaft and the seat hole at the same time, and the structure of the assembly sleeve should be able to press the end faces of the inner ring and the outer ring of the bearing at the same time.
Deep groove ball bearing installation method 2: Heating fit: By heating the bearing or bearing seat, the installation method uses thermal expansion to convert the tight fit into a loose fit. It is a common and labor-saving installation method. This method is suitable for large interference When installing the bearing, put the bearing or separable bearing ring into the oil tank and heat it evenly to 80-100°C before hot installation, then take it out of the oil and install it on the shaft as soon as possible. In order to prevent the inner ring end face and shaft shoulder from cooling, If the fit is not tight, the bearing can be tightened axially after cooling. When the bearing outer ring is tightly matched with the light metal bearing seat, the hot fitting method of heating the bearing seat can avoid scratches on the mating surface. When using an oil tank to heat a bearing, there should be a grid at a certain distance from the bottom of the tank, or a hook is used to hang the bearing. The bearing cannot be placed on the bottom of the tank to prevent 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 tempering effect and reduce the hardness of the ferrule.

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2023-09-08