VC045CP0 Thin Section Ball Bearing 4 1/2" x 5 1/4" x 3/8" inch VC045CP0 Thin Section Steel Open Ball Bearing, VC045CP0 is ABEC 1 quality, VC045CP0 bearing is Oil Preservative preserved, inner diameter is 4 1/2" inch, outer diameter is 5 1/4" inch and width is 3/8" inch.