Hang on, let me go measure... Looks like 16" diameter x 2 1/2" rim faces on my oilfield model. John On Mar 22, 2006, at 7:48 PM, Glenn A Karch wrote: > Hi, > > Can anyone out there give me the diameter and width of the flywheels > on a > Fairbanks Morse 52? John Culp Bristol, Tennessee, USA