... 380mm. 2) High precision and long life deep groove ball bearing with high quality and precisionFeatures: ... are suitable for high rotational speeds.3. Our deep groove ball bearings have many types. They can ... of the bearings or the customer's requirements.5. Deep Groove Ball Bearings: Low-noise, high-speed, suitable ... bearings and automotive bearing.6. The cage of Deep Groove Ball bearings is Steel Stamping Ribbon Cage, ...