The 6405 is a robust Medium Series Deep Groove Ball Bearing in a standard open design, engineered to deliver exceptional radial load capacity and reliable service in demanding power transmission systems. Manufactured without integral seals or shields, this bearing is optimized for applications where it operates within pre-lubricated housings or receives regular external lubrication. With a 25 mm bore, a substantial 80 mm outer diameter, and a 21 mm width, it offers a durable and versatile solution for heavy-duty industrial gearboxes, motors, and axle systems.