Structural Features: The outer ring of spherical outer ring bearings features a spherical outer diameter, enabling self-alignment within the concave spherical surface of the bearing housing. Some models incorporate an extended inner ring design to reduce tilt on the shaft, ensuring smoother operation. Additionally, these bearings typically include seals on both sides to effectively prevent contamination ingress, and the outer ring is generally equipped with two lubrication holes for convenient lubrication.

Classification: Based on shaft mounting methods, they are categorized into three main types: set screw outer spherical ball bearings, tapered outer spherical ball bearings, and eccentric sleeve outer spherical ball bearings. Set screw outer spherical ball bearings secure to the shaft via a set screw; common models include the UC200 series and UC300 series. Tapered outer spherical ball bearings feature a 1:12 tapered bore and require use with a locking sleeve. Examples include the UK200 series and UK300 series. Eccentric sleeve outer spherical ball bearings secure to the shaft via an eccentric sleeve. Primary models include the UEL200 series and UEL300 series.