This insert ball bearing carries a spherical outer ring surface seated in a housing, allowing the inner ring to accommodate shaft misalignment while the outer ring locates in the support. The RAE20-XL-NPP-FA106 has a bore diameter of 20.0 mm, an outside diameter of 47.0 mm, a width of 21.4 mm, and a net mass of 0.17 kg. Sealing is designated NPP, providing contact seals on both sides of the bearing to retain grease and restrict ingress of contaminants. The spherical fit between the inner and outer rings compensates for shaft deflection and minor mounting inaccuracies without introducing additional radial play beyond the design tolerance. The NPP sealing arrangement keeps the internal grease fill in place, so the bearing can operate without external relubrication under normal conditions and remains protected against dust and moisture ingress at the shaft line.