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.
4′ 2″ tread diam., disc, apparent tread 4¾″.
Hub 12¾″ face dia., 1″ out from the tyre.
Casting: 29.2 mm dia., i/d, hub 0.4 mm out from the tyre.
Casting prices and stock . LNER loco sets, price list
Scan of a casting in sets for LNER Thompson A2/1, 8 wheel tender . P2
27 Mar 2013