Features; 1. Self-aligning double row spherical roller bearing allows for a high degree of angular deflection of the drive shaft. 2. Self-aligning ball bearings are constructed with the inner ring and ball assembly contained within an outer ring that has a spherical raceway. This construction allows the bearing to tolerate a small angular misalignment resulting from deflection or improper mounting. 3.Typical applications: drive(driven) shafts, conveyers, roll shafts 4. Low noise , low vibration and High speed 5. large size range: inner diameter from 25mm-750mm 6. variations of structure: CC, CA, K, W33 7. main products: 22200, 22300, 22300, 23000, 23100, 23200 series . suffixes with CA, K, W33 type available