This is a Rear wheel bearing for Van Diemen Formula Ford. Fits rear uprights.
Suits RF86, RF87, RF88 and RF89. May fit others and is a double row design.
42mm inner diameter, often referred to as I.D. (hole in the middle)
75.00mm outer diameter, often referred to as O.D. (widest part of the bearing case)
37mm Wide.
Sold each.