- Radial, open, unflanged, 10 ball, stainless steel,
- ABEC 3 with dry lube.
- .500 inch outside diameter, .250 inch bore and .125 inch thick.
NOTE: This is a thinner version the standard R188. It fits our legacy spinners before the Bulari V2. The Bulari V2 and upcoming spinner collections are and will be using the a standard R188.