"608 2RS is also popularly know as skate bearing, used in applications like roller skates, roller blades, skate boards, robotics, 3d printers, automation projects and scooters.
This bearing comes in shielded version, where RS stands for rubber sealed bearing. 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. Rubber 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: 608 2RS, 608RS, 608ZZ, 608Z