The suffix “2RS” signifies the bearing is sealed, with rubber, on both sides. The suffix “ZZ” signifies the bearing isshielded, with metal, on both sides. Generally speaking, shielded bearings are more practical in cleaner, high-speed applications, while the sealed bearings are more practical for applications of slower speeds and dirtier environments.
DETAILS 1
Good quality and long life
Uniform hardness and wear resistance, long high temperature service life
DETAILS 2
Good rotation speed and low noise
During operation, rotate speed is even, coordinate with machinery and improve efficiency