3′ 6″ diam., 10 oval spokes, almost flat inner rim. Apparent tread 4.9″.
Hub 12¾″ face dia., level with the tyre.
Sources: Sharp, Stewart works drawings, photographs.
Casting: 23.7 mm tread dia., 18.2 mm i/d, hub 8.5 mm dia, ½″ out from the tyre.
Scan of a casting in a set for a Netherlands HSM 700/NS 5500 class 4-4-2T
8 Sept 2017