The 6809-2RS is a high-precision, single-row deep groove ball bearing belonging to the ultra-thin 6800 series. Equipped with dual-lip synthetic rubber contact seals on both sides, this bearing is engineered to deliver exceptional contamination exclusion and reliable grease retention within an extremely low-profile design. Featuring a 45 mm bore and a 58 mm outer diameter, it provides the ideal solution for large-shaft applications with severe radial space constraints. The factory-prefilled grease and robust rubber seals make the 6809-2RS the industry standard for compact, lightweight mechanisms operating in challenging environments containing dust, debris, or moisture.