... corrosion function, long life. 2, best service, high quality, competitive price. Deep groove ball bearings are used ... 625-6248, 6300-6344, 6403-64183, Material used: GCr15-China, (AJSI)52100-American, (Dina)100Cr6-Germany4, Shield /closure ... Precision level: P0, P6, P5(ABEC-3, ABEC-5)8, OEM service: we have been providing OEM service ... you ! offer deep groove ball bearing with high quality & low price