The self-aligning roller bearing has a double row of rollers, with a common spherical raceway on the outer ring and two raceway on the inner ring, which are tilted at an Angle relative to the bearing axis. This ingenious structure enables it to have the function of automatic centering, so it is not easy to be affected by the Angle of the shaft on the bearing box seat on the error or shaft bending, suitable for installation error or shaft deflection caused by Angle error. The bearing can bear radial load as well as bidirectional axial load. CA: Machined brass integral retainer. CC: Stamped plate type retainer. MA: Brass retainer for vibration occasions. MB: Machined brass two-piece retainer. 22308 ca/W33. Inner diameter 40mm outer diameter 90mm width 33mm, Material: bearing steel. Application: automobile, rolling mill, mining, metallurgy, plastic machinery and other industries. High speed: can cooperate with all kinds of machinery, reach high speed, reduce noise. Heat treatment process: change the internal structure of steel, extend the mechanical properties of steel, prolong the service life of bearings. Bearing chamfering: four sides black processing, visible process. Material: pressure resistance, not easy deformation, long service time. Low friction: low friction torque, high rigidity, good turning accuracy. Even speed: the speed is even and works in harmony with the machine. Low noise: low noise, high speed, not easy to hot. Quality assurance, stable performance. Bearing steel, with good processing performance, polishing process appearance clean. Large load capacity. Mainly bear radial load, but also can bear axial load in any direction. The raceway of bearing outer ring is spherical, so its provocation performance is good. Customized processing, according to customer demand production. {there are a variety of bearing models, only part of the website can be uploaded, there is a need for other models or bearing maintenance and other problems can consult customer service}Bearing steel, with good processing performance, polishing process appearance clean. Large load capacity. Mainly bear radial load, but also can bear axial load in any direction. The raceway of bearing outer ring is spherical, so its provocation performance is good. Customized processing, according to customer demand production. {there are a variety of bearing models, only part of the website can be uploaded, there is a need for other models or bearing maintenance and other problems can consult customer service} A self-aligning ball bearing is a ball bearing with two volleys (called "seat rings"). The inner ring has two raceways, and the outer ring has a spherical raceway, whose center of curvature coincides with the bearing axis. In this way, the axis of the inner ring, ball and cage can be deflected around the bearing center to automatically correct for misalignment caused by machining or mounting errors in the housing and shaft. They can be opened or sealed. Bearings are insensitive to misalignment of the shaft Angle with respect to the housing.Self-aligning ball bearings are available in a variety of sizes, materials and varieties according to consumer demand, including special industrial applications such as high temperature applications. They mainly have three kinds of design of self-aligning ball bearings: open self-aligning ball bearings, sealed self-aligning ball bearings and self-aligning ball bearings with extended inner rings. They can also be made in different sizes and loads, depending on the application, from miniature ball bearings for light loads and small components to large self-aligning ball bearings.