... German technology3.15 years of manufacturer4.ISO9001:2008 approval A.Description:1.Item: 3303 ball bearing2. Size/ Dimensions : 17× ... 7000AC, 7000A, 7000B, dB, DF, QJ, QJF. 5.application: (1) Single row angular contact ball bearing is mainly used in the machine ... , gas turbine, centrifuge, cars wheel, differential pinions axis; (2) Double row angular contact ball bearing widely used in oil pump, roots ...