SR188C Stainless Steel Fidget Spinner Ceramic Si3N4 Ball Bearing Outer Diameter - 38.885mm The raceways of both the

The raceways of both the inner and outer rings of this set up kind are made out of a set contact angle

Equal New Departure-Hyatt Division V20307

D X x Y x Z mm tolerance mm tolerance 8 0-12 19 0-21 66 40 6 29 4

The 88641-2RS is a high-quality deep groove ball bearing built for electric motor use and other demanding applications

SR188C Stainless Steel Fidget Spinner Ceramic Si3N4 Ball Bearing Outer Diameter - 38.885mm The raceways of both theFidget Spinner SR188 Stainless Steel Si3N4 Bearing 1 4"x1 2"x3 16" SR188 Ball Bearing Fidget Spinner Bearing Ceramic Balls (Si3N4) Dimensions: 1 4"x1 2"x3 16" ID (inner diameter) Bore: 1 4" OD (outer diameter): 1 2" Width: 3 16"