Single-row deep groove ball bearings in the structure of each ring has a cross section of both the equatorial circumference of the ball is about one-third of a long continuous groove type raceway. Deep groove ball bearing is mainly used to bear radial load, it can withstand a certain degree of axial load. When the bearing radial clearance increases, with the nature of the angular contact ball bearings can withstand both directions alternating axial load. With the same size compared to other types of bearings, such bearings friction coefficient is small, extreme high speed, high precision, when a user selection of the preferred bearing type. Most of deep groove ball bearings are made by Inner ring,Outer rings,Metric shields or rubber seals, Cage, Steel Balls.Lubricant and gasket.