Diagrams Index . Home
7 mm/ft scale
B518 mid, B519 outer.
SR 0-6-0 Q1 class driving wheels.

5′ 1″ diam., 8 ribs, apparent tread 3½″.
Hub 16″ face dia., 2″ out from the tyre.

Casting: 35.6 mm tread dia., 31.5 mm i/d., hub 1.6 mm out from the tyre.

Casting prices and stock . NE loco sets, price list

Scan of a casting in a set for a SR 0-6-0 Q1 class.

Scan of casting B518   Scan of casting B519

Cross section diagram of casting B518
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