SKF 6311zz BALL BEARING 1, Accept small orders 2, prompt delivery 3, good quality & price 4, warmly service deep groove ball bearing 6311 Products deep groove ball bearing 6311Brand SKF.NSK.NTN.KOYO.ASAHI.IKO.TIMKEN.....Factory brand: YEPOCage materialNylon . Steel . BrassPrecision P0/ABEG P6/ABEC3 P5/ABEC5 P4/ABEC7SealingOpenQuality standardISO9001:2000 standardServiceOEM acceptableDelivery ...