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′ 9½″ diam., 18 oval spokes, rectangular rim.
Hub 16¾″ face dia., 2¼″ out from the tyre. Pin In line at 11″
Sources: Mike Barnsley, Midland and South Western Junction Railway, 2 Locomotives, Wild Swan (1991).
Works drawing: North British Locomotive Co. No 25019, Jun 1906.
Casting: 40.25 mm tread dia., 36.2 mm i/d., hub 1.3 mm above the tyre, pin at 6.4 mm
27 Mar 2013