Bike hub part (axle, hex nut, and ball bearings omitted), used for our wind turbine project in Engineering 196. Modeled from measurements taken of actual part, rounded to assumed manufacturing tolerances. 3 holes on top (right, from thumbnail) were enlarged for the use in our wind turbine. Part is a Formula DC20 Front MTB Hub. Modeled in Creo Parametric 2.0. Not intended for production.