VA050CP0 Ball Bearing 5" x 5 1/2" x 1/4" inch Chrome Steel : Brass Cage Thin Section Open Ball Bearing with a 1/4" cross section width, inner diameter is 5" inch, outer diameter is 5 1/2" inch and width is 1/4" inch, the dimensions are 5" x 5 1/2" x 1/4" inch, VA050CP0 bearing has Brass balls retainer, VAO5OCP0 bearing is oil preserved.