Bearing P/N – BR-6305ZZ

Metal shields on both faces mark this as a 6305ZZ deep-groove ball bearing, a single-row design in the standard 25 millimeter bore, 62 millimeter outside diameter, and 17 millimeter width envelope. The double shields, denoted by the ZZ suffix, retain the factory grease and keep dust and debris out of the raceway without the drag of a contact seal, which suits the moderate to high speeds a deep-groove bearing runs at.

This configuration carries radial load along with a degree of axial load in either direction, the general-duty arrangement used across industrial equipment for shafts, rollers, and pivots. As a wear item, a ball bearing signals its end of life through added noise, roughness when spun by hand, or play in the race, and running it past that point risks the shaft it supports.

The 6305ZZ dimensions are an industry standard, so confirm the bore matches the shaft and the outside diameter matches the housing, since a deep-groove bearing must press to the correct fit on both to seat and turn true.