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.
6′ 10″ diam., 20 oval spokes, apparent tread 4″.
Hub 17″ face dia., 1″ out from the tyre, pin in line at 13″.
Source: for the wheel balance weight outline - Locomotives Illustrated, No 93 p. 36, a good photograph.
Casting: 47.8 tread dia., 43.4 i/d., hub 0.6 mm out from the tyre.
Casting prices and stock . NE loco sets, price list
Scan of a casting in a set for a LNER 4-4-2 C7/2 class.
27 Mar 2013