NSK Bearing 6009 for smart electric scooter Z1/Z2/Z3/Z4 grade

Deep groove ball bearing Description:

single row deep groove ball bearings have deep, uninterrupted raceway grooves. These raceway grooves have a close osculation with the balls, enabling the bearings to accommodate radial loads and axial loads in both directions.
Single row deep groove ball bearings are available open or capped (with seals or shields). Open bearings that are also available capped, may have recesses in the outer ring.