Diagrams Index . Home
7 mm/ft scale
B112
GWR driving wheel.

5′ 8″ diam., 18 oval spokes, rectangular inner rim, apparent tread 2″.
Hub 13½″ face dia., 1¼″ out from the tyre, pin in line at 15″.

Casting: 39.7 tread dia., 35.9 i/d, hub 0.7 mm out from the tyre, pin at 8.75 mm.

Casting prices and stock . GWR loco sets, price list

Scan of a casting in sets for GWR : 4-6-0 Grange/ early Manor . 2-6-0 43xx . 2-4-2T 46xx

Scan of casting B112 - waits casting

Cross section diagram of casting B112
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.


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27 Mar 2013