LR607NPPU Track Roller Bearing Sealed 7x22x6mmLR607NPPU Track Roller Ball Bearing 7mm x 22mm x 6mm Sealed Single Row, One Bearing The LR607NPPU is a compact track roller bearing built for guiding and supporting motion along rails and tracks. With its sealed design and chrome steel construction, it delivers smooth, low friction movement while resisting dust and debris in demanding environments. Size: 7mm ID x 22mm OD x 6mm Width Sealed to keep out dust and extend bearing life Single row deep