This type bearing is Miniature Single Row Deep Groove Ball Bearing,mainly take the radial load as well as moderate load. Bearing Features: simple configuration,high speed,hight ,less coefficient of friction,less vibration and noise,most widely used. Made of Bearing Steel for durability and resistance. These ball bearing is fitted with two rubber dust seal to prevent ingress of dirt, water and foreign matter. Miniature Deep Groove Ball Bearing suitable for all kinds of industrial equipment, Micro-motor,small rotary motor,office equipment and so on., Weight: 0.38911589243 pounds, Manufacturer: Jaywool