Deep groove ball bearings
Single row deep groove ball bearings are the most widely used bearing type and are particularly versatile. They have low friction
What is the difference between 6203 and 6203 2RS?
The “03” corresponds to a 17 mm bore size, and “2RS” means the bearing is sealed on both sides with rubber seals to protect from dust and moisture. In short, the 6203-2RS bearing features: 17 mm inner diameter.