... to bear radial load, but increases when the radial bearing clearance, with certain properties of angular contact ball ... to bear the pure axial load. With the same size compared to other types of bearings,such bearings friction ... , pumus,agricultural machinery, textile machinery, ect. deep groove ball bearing Brand MaterialGCr15SiMn, GCr15, G20Cr2Ni4ACertificateISO9001:2008PrecisionP0, P6, P5, P4, ...