... . 4. Features: Shield / closure: Open ball bearing, Z, ZZ, RS, 2RS, 2RZBall bearings snap ring: N, NRTolerance code: ABEC-1, ABEC ... , 6224, 6300, 6301, 6302, 6303, 6304, 6305, 6306, 6307, 6308, 6309, 6310, 6311, 6312, 6313, 6314, 6315, 6316, 6317, 6318, 6319 ... you our best products with competitive price. Only 100% Real SKF 6006-2rs deep groove ball bearing