The self-aligning ball bearing is a bearing equipped with spherical ball between the inner ring of two raceways and the outer ring with spherical raceway.
The curvature center of the outer ring raceway surface is consistent with the bearing center, so it has the same centering function as the automatic centering ball bearing. In case of deflection of shaft and shell, it can be adjusted automatically without increasing the burden of bearing. Self aligning roller bearing can bear radial load and axial load in two directions. Large radial load capacity, suitable for heavy load and impact load. The inner diameter of the inner ring is a bearing with tapered hole, which can be installed directly. Or install it on the cylindrical shaft with tightening sleeve and disassembly cylinder. The cage uses steel plate stamping cage, polyamide forming cage and copper alloy car cage.
Self aligning ball bearing has two structures: cylindrical hole and conical hole. The material of cage includes steel plate, synthetic resin, etc. The utility model is characterized in that the outer ring raceway is spherical and has automatic centering, which can compensate the error caused by the centering ball bearing made by different centrality and shaft deflection, but the relative inclination of the inner and outer rings shall not exceed 3 degrees.
It can bear large radial load and certain axial load at the same time. The outer race raceway of this kind of bearing is spherical, so it has centering performance. When the shaft is bent or tilted by force, the relative inclination between the inner race center line and the outer race center line is no more than 1 ° ~ 2.5 °, the bearing can still work.
The inner holes of self-aligning ball bearings are cylindrical and conical. The taper of conical inner hole is 1:1 2 or 1:30. In order to enhance the lubrication performance of the bearing, an annular oil groove and three oil holes are machined on the outer ring of the bearing.