Product Name: Miniature BearingsPlace of Origin: ChinaSpecifications: 1) Bore from 2 to 8mm 2) Models: 682-689, 692-699, 602-609, 623-629, and 634-635 3) Shield/seal: open, ZZ, 2RS 4) Snap ring: N, NR 5) Accuracy: ABEC-1, ABEC-3, ABEC-5 6) Vibration: V4, V3, V2, V1 7) Clearance: C0, C2, C3, C4, C5