The SB201 bearing is a variant of deep groove ball bearings. Its main characteristic is that the outer diameter surface of its outer ring is spherical
. This design allows the bearing to automatically align itself when installed in a housing, compensating for misalignment caused by installation errors or shaft deflection, meaning it possesses self-aligning capability .
These bearings are typically pre-filled with lubricant and equipped with seals upon shipment, effectively preventing the ingress of contaminants and enabling maintenance-free or low-maintenance operation
. Depending on the fixing method, common types of SB201 bearings include the set screw type (fixed directly to the shaft via set screws) and the eccentric collar type, among others, offering users flexible installation choices for different application scenarios.
