VB050CP0 Thin Section Ball Bearing 5" x 5 5/8" x 5/16" inch VB050CP0 Thin Section Steel Open Ball Bearing, VB050CP0 is ABEC 1 quality, VB050CP0 bearing is Oil Preservative preserved, inner diameter is 5" inch, outer diameter is 5 5/8" inch and width is 5/16" inch.