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Spherical Roller Bearings
This type of bearings are mainly used to c carry radial loads, and at the same time can also carry a certain amount of axial loads. The raceway of the outer ring of the type is spherical. So it has self-aligning property. thus it is able to rotate ardinary even when the shaft is subjected to curve of fitted in misalignment. But anyway its angular mislignment does not exceed 1'~2.5'. this type of bearings have big carrying capacity, but must be operated in low speed rotation.
The spherical roller bearings have cylindrical bore of tapered bore. The tapers of the tapered bore are 1:12(type 153000 or type 113000) and 1:30(type 4453000) respectively. The bearings with a tapered bore are mainly mounted on the shafts with and adaper sleeve of dismounting sleeve. In order to improve the lubricating property of bearings. Alubricating groove turned in the outer ring with three lubrication holes is avaivable.