"606ZZ is used in applications like robotics, 3d printers, cnc, automation projects and scooters.
This bearing comes in shielded version, where ZZ stands for shields on both sides. It has deep groove geometry for supporting both radial and axial loads and high speeds. The races are made of steel for durability and resistance to deformity under heavy loads. Seals on both sides of the bearing help retain lubricant and exclude contaminants.
This bearing can used as replacement for following part numbers on it: 606-2RS, 606RS, 606ZZ, 606Z"