These ball bearing is fitted with two rubber dust seal to prevent ingress of dirt, water and foreign matter. This type bearing is Miniature Single Row Deep Groove Ball Bearing,mainly take the radial load as well as moderate load. durability and resistance. Bearing Features: simple configuration,high speed,hight ,less coefficient of friction,less vibration and noise,most widely used. Miniature Deep Groove Ball Bearing suitable for all kinds of industrial equipment, Micro-motor,small rotary motor,office equipment and so on., Weight: 0.1763698096 pounds, Manufacturer: HWIREUIGT