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 the 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.

Product characteristics of self-aligning ball bearing

It mainly bears radial load and small axial load at the same time. The axial displacement of the shaft (shell) is limited within the clearance limit and has automatic centering performance. It allows the normal operation under the condition of small relative inclination of the inner and outer parts. It is suitable for parts where the coaxiality of the support seat hole cannot be strictly guaranteed.

Structural form of self-aligning ball bearing

The self-aligning ball bearing with dust cover and sealing ring has been filled with an appropriate amount of grease during assembly. It should not be heated or cleaned before installation. It does not need to be lubricated during use. It is suitable for the operating temperature between - 30 ℃ and + 120 ℃. Main uses of self-aligning ball bearing: it is suitable for precision instruments, low-noise motors, automobiles, motorcycles and general machinery. It is the most widely used type of bearing in the machinery industry.

The models of self-aligning ball bearings are divided into 1200 series, 2200 series, 1300 series and 2300 series