... 7Vibration level: V4, V3, V2, V1Radial play: C0, C2, C3, C4Material: AISI52100, AISI440C, AISI304, AISI316Retainer: PTFE, nylon, PEEK ... or two side metal shields Z and ZZ (2Z)With a snap ring groove in outer ring ... 6310, 6311, 6312, 6313, 6314, 6315, 6316, 6317, 6318, 6319, 6320, 6403, 6404, 6405, 6406, 6407, 6408, 6409, 6410 ... with competitive price. Only 100% Real SKF 6006-2rs deep groove ball bearing