The 6709-2RS is an Extra-Thin Section, Double Rubber-Sealed Deep Groove Ball Bearing engineered for applications requiring minimal weight and compact axial space. Featuring an ultra-narrow 6 mm cross-section paired with a 45 mm bore, this bearing delivers reliable rotational support where traditional bearings cannot fit. Equipped with two non-removable rubber contact seals (2RS) , it provides lifelong grease retention and effective exclusion of dust and moisture, ensuring maintenance-free operation in precision instruments and light industrial drives .