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7 mm/ft scale
BR standard trailing and tender wheels.

3′ 3½″, 10 oval spokes, vee inner rim, apparent tread 3½″.
Hub 16″ face dia., 5/8″ out from the tyre.

Source: works drg.

Casting: 23.0 mm tread dia., 18.8 mm i/d., hub 0.4 mm out from the tyre.

Casting prices and stock . BR loco sets, price list

Scan of casting in sets for: BR 2-10-0 9F, 2-6-0 3MT/4MT

Scan of casting B60

Cross section diagram of casting B60
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