Casting diagram, D103

Plain wheels for the SAR 15F, 25 and 25NC and GMAM classes.

2′ 6″ diam., 8 oval spokes, rectangular inner rim. Tyre width 5″.
Hub 10″ face dia., ½″ out from the tyre.

Casting: 45.4 mm dia., 35.3 i/d., hub 0.8 mm out from the tyre.

Narrow gauge loco set prices . Casting prices and stock

Scan of a casting in a set for a EAR class 59 (with extra clearance).

Note: Class 24 leading and trailing bogies and classes 25, 25NC trailing bogie with outside bearings, skim the hub to a scale 1/4 inch below the font of the tyre. Ref. wks drg. 304.

The diagram shows the earlier Gauge Three standard 8.0mm tyre width as an example.
The exact scale equivalent of this SAR/EAR 5″ wide tyre is 7.6mm at 1:16.8.
The current recommended Gauge 3 tyre width of 6.8mm would be under scale for this wheel.