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Application Of Double Row Deep Groove Ball Bearings

wallpapers Tech 2021-01-12
Application
 
Double row deep groove ball bearings can be used in gearboxes, instruments, motors, household appliances, internal combustion engines, transportation vehicles, agricultural machinery, construction machinery, construction machinery, roller skates, yo-yos, etc.
 
Installation method
 
Deep groove ball bearing installation method 1: press fit: the inner ring of the bearing and the shaft are tightly matched, and the outer ring and the bearing seat hole are loosely matched, and the bearing can be pressed on the shaft with a press first, and then the shaft and the bearing Put them into the bearing seat hole together, and pad an assembly sleeve made of soft metal material (copper or mild steel) on the end face of the bearing inner ring during press-fitting.
 
The outer ring of the bearing is tightly matched with the bearing seat hole, and the inner ring and the shaft are When the fit is 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 is tightly fitted with the shaft and the seat hole, install the inner 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 tighten the end faces of the inner ring and the outer ring at the same time.
 
Deep groove ball bearing installation method two: heating fit: by heating the bearing or bearing seat, using thermal expansion to transform the tight fit into a loose fit. It is a common and labor-saving installation method. This method is suitable for large interference To install the bearing, put the bearing or the separable bearing ring into the oil tank and heat it evenly at 80-100℃, then remove it from 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 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.

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