This example shows a tyre width of 3.5 mm for Gauge 0 Fine.
	For Scale7 remove more metal from the back of the wheel to give a tyre thickness of 3.2 mm instead of 3.5 mm.	
	
			
		5′ 2″ diam., 16 spokes, shallow rectangular inner rim, apparent tread 4 5/8″, tyre thickness 5 3/8″.
		Hub 16½″ face dia., pin between at 12″,  hub is 2 5/8″ out from the tyre.
Source: LNER Works drawing.
Casting: 36.2 tread dia., 30.8 i/d, hub level with the tyre, pin at 7.0 mm.
Casting prices and stock . LNER loco sets, price list
Scans of castings in a set for: LNER 0-6-0 J39.
 
 
	
	12 Dec 2017