Rolling Stock

Generally prototype wheel diameters for wagon wheels are 3′ (or thereabouts), coaches are 3′ 6″ (except BR B4 bogie and Most DMUs which are 3′). A few special wagons such as Lowmacs and Rectanks need 2′ 8″. Some passenger rated wagons have 3′ 6″ (sometimes spoked), and SR CCT/PLVs had 3′ when introduced but were mostly replaced later with 3′ 6″. The LMS used 3′ 6″ on Milk tanks but other companies used 3′.

Alan Gibson wheels (AG codes) are 12 mm gauge on pin point axle [20.06 +/- .01 mm long with 55º coning]

Moskito wheels (DW codes) will run on both Standard and finescale track but will not run reliably on Peco track

A pack consists of 2 axles and 4 wheels without Bearings.