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1:45 scale
C254, C255, C256, C348
Dutch State Railways 700 class 4-6-0 and 1200 class 4-6-4T driving wheels.

6′ 0¾″ diam., 18 oval spokes, rectangular inner rim, apparent tread 4″, tyre width 145 mm.
Hub 14½″ face dia., 15 mm out from the tyre, pin between spokes. Note that the coupling rods have one inch less throw than the connecting rods: the driven wheel pin is off-set at half way, driven wheel pin inner half at 12″, outer half at 13″, coupled wheels pins all at 12″.

Sources: works drawing, photographs.

Castings: 41.1 mm tread dia., 36.7 i/d, hub 0.3 mm out from the tyre, pin at 6.9 mm.

Casting prices and stock . Netherlands, loco sets, price list

Scans of a castings in a set for a Dutch State Railways 700 class 4-6-0 and in a set for 1200 class 4-6-4T

Scan of casting C254 Scan of casting C255 Scan of casting C256 Scan of casting C348

Cross section diagram of castings C254, 255, 256, 348

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9 Sept 2017