The difference between self-aligning ball bearing type and roller bearings.
Spherical roller bearing rolling body is cylindrical roller - drum surface.
The most direct difference between the two rolling bodies
Watch from outsideThe self-aligning ball bearing has two rows of steel balls, the inner ring has two raceways, and the outer raceway is the inner spherical surface, and has the performance of automatic centering. The utility model can automatically compensate the coaxiality error caused by the deflection of the shaft and the deformation of the shell, and is suitable for the parts with the supporting seat hole that can not guarantee the coaxiality. This kind of bearing is mainly subjected to radial load, and can bear a small amount of axial load when it is subjected to radial load. It is not normally used for purely axial load, such as pure axial load, and only one steel ball is loadedSpherical roller bearing with two rollers, mainly used to bear radial load, but also can withstand axial load in either direction. This kind of bearing has high radial load capacity, and is especially suitable for working under heavy load or vibration load, but it can not bear pure axial load. It has good centering performance and can compensate for coaxiality error.
