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7 mm/ft scale
B513 front, B514 rear.
NE 4-4-0 Q1 class/LNER D18 driving wheels.

7′ 7¼″ diam., 22 oval spokes, apparent tread 4½″.
Hub 16½″ face dia., 2 5/8″ out from the tyre.

Casting: 53.4 tread dia., 48.0 i/d., hub 1.5 mm out from the tyre.

Source: N.E.R works drg. No. 4029 of April 1910.

Casting prices and stock . NE loco sets, price list

Scan of a casting in a set for a NE 4-4-0 Q1 class.

Scan of casting B513   Scan of casting B514

Cross section diagram of casting B513
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