11204 TN9 Spherical ball bearing

Spherical ball bearings have two rows of balls that share a spherical raceway in the outer ring. The bearings are self-aligning, allowing for minor parallel misalignments between the shaft and bearing housing. They are particularly suited for applications where parallel misalignment may occur due to installation errors or shaft bending. Spherical ball bearings are suitable for light to medium radial loads and high speeds, making them widely used in applications such as fans.

Spherical ball bearings are available in both sealed and open designs, with either a cylindrical or tapered bore.

Common suffix indications:
- C2, C3 = clearance class (normal clearance with no indication, C2 = normal clearance reduced, C3 = normal clearance increased)
- TN9, M = cage material (steel cage with no indication, TN9 = polyamide, M = brass)
- 2RS1 = rubber seals on both sides
- K = tapered bore (cylindrical bore with no indication)