VC055CP0 Thin Section Ball Bearing 5 1/2" x 6 1/4" x 3/8" inch VC055CP0 Thin Section Steel Open Ball Bearing, VC055CP0 is ABEC 1 quality, VC055CP0 bearing is Oil Preservative preserved, inner diameter is 5 1/2" inch, outer diameter is 6 1/4" inch and width is 3/8" inch.