Deep groove ball bearings are bearing the most common type. The basic model consists of a deep groove ball bearing outer ring, an inner ring, a steel ball and a group of holding structure into. Deep groove ball bearing type has two kinds of single and double row deep groove ball structure also split seal and open two structures. 1) Material: Chrome steel (GCr15) 2) Cage: Steel 3) Ball: steel 4) Precision: P0 - P6 5) Vibration: Z1 - Z3 6）Clearance: C0 - C5 7) Seals type: Z, 2Z, RS, 2RS, RZ, 2RZ, OPEN 8) Application: Automobiles, motors, instruments, agricultural machinery, engineering machinery and various professional machines.