Bore Size:80 mm Outside Diameter:125 mm Precision Rating:P4 Seals Type:OPEN of Row:Single Row Material:Ceramic Ball Cage:Steel Cage.Brass Cage.Nylon Cage Certificate:ISO9001:2008 Vibration:Z4V4 Lubricated:Lubricated (Grease) Tolerance:ABEC7 Brand:NSK Feature:Stable Performance:low Voice Stock:Great Supplying Ability Sample:Avialable