Self aligning roller SKF Bearing is a drum roller bearing assembled between the inner ring with two raceways and the outer ring with spherical raceway. Self aligning roller bearing has two rows of rollers, which mainly bear radial load and axial load in either direction. It has high radial load capacity, especially suitable for working under heavy load or vibration load, but can not bear pure axial load. This kind of bearing outer race is spherical, so it has good centering performance and can compensate coaxiality error.
Self aligning roller bearings are divided into symmetrical spherical roller and asymmetric spherical roller according to the roller section shape. Asymmetric self-aligning roller bearings are early products and mainly serve the maintenance of the main engine. Symmetrical self-aligning roller SKF bearings are rarely used in the new design of the main engine. The internal structure has been comprehensively improved and optimized, Compared with the self-aligning roller bearing produced in the early stage, it can bear greater axial load. The operating temperature of this bearing is lower, so it can meet the requirements of higher speed. It can be divided into C-type and Ca-type according to whether the inner ring has retaining edge and the cage used. The characteristics of C-type bearing are that the inner ring has no retaining edge and adopts steel plate stamping cage, CA Tyrion bearing is characterized by both sides of the inner ring with retaining edges and machined solid cages. In order to improve the lubrication of the bearing, users can be provided with self-aligning roller bearings with annular oil grooves and three oil holes on the outer ring, represented by the bearing rear code / W33. Self aligning roller bearings with oil holes on the inner ring can also be supplied according to users’ requirements. In order to facilitate customers’ loading, unloading and replacement of the bearing, It can also provide self-aligning roller bearing with inner hole taper. The taper of the conical hole is 1:12, and the later code is K. in order to meet the requirements of special users, it can also provide bearing with inner hole taper of 1:30. The later code is K30. The bearing with inner hole taper can be directly installed on the conical journal with lock nut, or the bearing can be installed on the cylindrical journal with the help of set sleeve or withdrawal sleeve. In order to prevent harmful slip between raceway and roller due to centrifugal action during high-speed operation of bearing, the bearing shall bear a certain minimum radial load, which can be estimated according to the following formula:
Self aligning roller SKF bearings are divided into cylindrical bore and conical bore. The taper of conical inner hole is 1:12 rear self-aligning roller bearing with code K (153000 or 113000) and 1:30 rear self-aligning roller bearing with code K30. When this kind of SKF Bearing is matched with the conical shaft, the inner ring moves axially to adjust the radial clearance of the bearing. Install the tapered hole self-aligning roller bearings with rear codes K and K30 on the matching set sleeve to become rear codes K + H and K30 + H bearings. The bearing can be installed on the optical shaft without shaft shoulder, and is suitable for occasions where the bearing needs to be installed and disassembled frequently. In order to improve the lubrication performance of SKF Bearing, an annular oil groove is turned on the outer ring of the bearing and three evenly distributed oil holes are drilled, with the rear code of W33.
Self aligning roller SKF Bearing is equipped with drum roller bearing between the inner ring with 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, the load and axial load in two directions can be adjusted automatically. 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.