This example shows a tyre width of 3.5 mm for Gauge 0 Fine.
For other standards remove more or less metal from the back of the wheel to give your chosen tyre width.
3′ 3″ diam., 9 oval spokes, almost flat inner rim. Apparent tread 5″.
Hub 12¾″ face dia., level with the tyre.
Sources: Sharp, Stewart works drawings, photographs.
Casting: 22.0 mm tread dia., 16.4 mm i/d, hub 7.2 mm dia, level with the tyre.
Casting prices and stock . Netherlands, loco sets, price list
Scan of a casting in a set for a Netherlands HSM 700/NS 5500 class 4-4-2T
8 Sept 2017