6310 SKF deep groove ball bearing 1.ISO:9001:2000&SGS 2.high quality 3. ... quick delivery 4.reference price:US$0.05-6 6310 SKF ... deep groove ball bearing 1.Types:60series,62series,63series,68series,69series,etc ... Z1, Z2, Z3 ZV1.ZV2.ZV3,5. Precision level: ABEC-1, ABEC-3, ABEC-56. Main application: motorcycle, motor, pump ...