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Gauge 0 wheel castings, by INTERNAL DIAMETERS
or see these castings ARRANGED BY TURNED TREAD DIAMETER
or see the GALLERIES of IMAGES:   PLAIN,   DRIVING WHEELS

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TREAD DIAMETERS are a fairly good guide to wheel size, but remember that due to apparent tyre thickness varying from wheel to wheel by 3 to 5 inches, you will need to refer to the diagrams to find the internal diameters and to see the machining allowances on the castings.

Scales: A = 1:8 (7¼″ gauge),   B = 1:43.54 (7 mm/ft),   C = 1:45,   E= 1:13.26,   H = 1:24 (1/2"=1 foot),   K = 1:20.32 (15 mm/ft),   N = 1:16 (3½″ Gauge), P = 1:32,   T = 1:30.5 (10 mm/ft),   V = 1:11.29 (5" Gauge)   X = 1:22.6 (Gauge 3)

B18, B19, B20, B35, B36, B37, B38, B41, B42, B43, B44, B51, B55, B56, B60, B64, B65, B66, B74, B79, B80, B81, B111, B113, B149, B159, B185, B292, B310, B327, B339, B340, B341, B351, B352, B353, B374, B375, B382, B383, B384, B385, B394, B395, C252, C253, C254, C255, C256, C348, C349, C350, C368, C370, C371, C372, C373, C386, C387, C388, C389, C390, C391, C392, C393, C397, C398, C399,

Finding the right casting size if you know the apparent tread.

Look for the casting i/d which matches your model diameter on the tread (the normal nominal o/d), less TWICE the apparent tread at your scale.

Example: 5'0" nominal dia. wheel with a 3½ inch apparent tread at a scale of 1:32.
Model dia on tread = 47.6 mm, twice the apparent tread = 5.6mm, so your target casting internal dia is 42.0 mm.

There is some variation in the castings, but the measurements are usually accurate within ± 0.1 mm.

CASTING Dia.
Proto.
Spokes Plain
or
driver
Tread
dia
mm.
Casting
i/d
mm.
Wheel data
with image
C 349 1' 11½" 7 oval spokes Plain Switzerland. Furka 2-6-0T Rack Loco. 13.3 10.5 Wheel data
B 19 3' 0" 10 oval spokes Plain GWR King bogies 21.0 16.2 Wheel data
B 35 3' 0" 9 oval spokes Plain LMS bogie, thicker tyre than BR No 74. (Vee rim). 21.0 16.2 Wheel data
C252 3' 0" 8 oval spokes Plain Netherlands 4-6-0 NS 3700 class bogie. 20.3 16.4 Wheel data
C 390 3' 3" 9 oval spokes Plain Netherlands. NS 5500 bogie 22.0 16.4 Wheel data
B 41 3' 2" 10 oval spokes Plain LNER A3, B1, V2 bogie 22.2 16.5 Wheel data
B 74 3' 0" 9 oval spokes Plain BR bogie. (Vee rim). 21.0 16.8 Wheel data
B 339 3' 1" 9 rect spokes Plain LTSR 4-4-2T No 1 class. 21.6 16.9 Wheel data
C 350 2' 11" 11 oval spokes Plain Switzerland. Furka 2-6-0T Rack loco. (910 mm) 20.2 17.3 Wheel data
B 80 3' 1" Boxpok Plain SR Merchant Navy, West Country, Battle of Britain 21.6 17.7 Wheel data
B 55 3' 3" 8 rect spokes Plain Highland Jones Goods bogie 22.8 18.2 Wheel data
C 393 3' 6" 10 oval spokes Plain Netherlands. NS 5500 trailing 23.7 18.2 Wheel data
B 60 3' 3½" 10 oval spokes Plain BR tender. (Vee rim). 23.0 18.8 Wheel data
C399 3' 7½" 10 rect spokes Plain Netherlands, NS 3200 tender 24.6 18.9 Wheel data
B 113 3' 6" 10 oval spokes Plain Caledonian 944 4-6-2T bogies 24.5 18.95 Wheel data
C 389 3' 4¾" 10 oval spokes Plain Austrian BBÖ class 73 tender 23.0 19.6 Wheel data
C 370 3' 7.3" 12 rect spokes Plain Netherlands. NS 1000 bogies. 1100 mm 24.4 20.1 Wheel data
B 42 3' 8" 10 oval spokes Plain LNER A3, V2 trailing 25.7 20.1 Wheel data
B 51 3' 6½" 10 oval spokes Plain LMS Ivatt tender. Vee rim. 24.8 20.2 Wheel data
B 66 3' 9" disc Plain LNER 4,200 gall tenders for A2/1, B1, B17, D49, J38, J39, K3, K4, O2, V2 26.3 20.8 Wheel data
B 149 3' 8" 10 oval spokes Plain GWR carrying wheel 25.7 20.9 Wheel data
B 81 3' 7" Boxpok Plain SR Merchant Navy, West Country, Battle of Britain 25.1 21.0 Wheel data
C368 3' 7.3" 10 oval spokes Plain Holland. NS 3700 8 wheel tenders 24.4 21.0 Wheel data
B 36 3' 9" 11 oval spokes Plain LMS 4-6-2 Duchess pony. (Vee rim). 26.3 21.4 Wheel data
C 386,7,8 3' 8.1" Disc Drivers Austrian BBÖ class 73 24.9 21.8 Wheel data
B 56 3' 9½" 10 rect spokes Plain Highland tender 26.5 21.9 Wheel data
C 372 4' 0" 12 rect spokes Plain Netherlands 4-4-0 1300 class tender (early). 27.1 23.1 Wheel data
B 353 4' 0" 12 oval spokes Plain LBSC tender. 28.0 23.2 Wheel data
B 43 4' 2" 12 oval spokes Plain GN/LNER. (=4'1" for thin tyred early tenders). 29.2 23.6 Wheel data
B 44 4' 2" Disc Plain GN/LNER. 29.2 23.6 Wheel data
C 253 4' 0" 12 oval spokes Plain Netherlands 4-6-0 3700 class tender 27.1 23.9 Wheel data
B 38 4' 3" 12 oval spokes Plain LMS tender 29.8 25.0 Wheel data
B 20 4' 1½" 12 oval spokes Plain GWR Churchward and Collett tenders 28.9 25.2 Wheel data
B 394, 395 4' 6" 13 rect spokes Driver Kitson, Taff Vale K,L, M 31.5 27.1 Wheel data
B 159 4' 8½" 15 oval spokes Driver LMS Stanier 8F 33.0 27.9 Wheel data
C397, 398 5' 0" 16 rect spokes Drivers Netherlands, 0-6-0 NS 3200 class. C397 mid 33.9 28.2 Wheel data
B 351, 2 5' 2" 16 oval spokes Driver LNER 0-6-0 J39 36.2 30.8 Wheel data
B384, 385 5' 3½" 15 rect spokes Driver HR 4-4-0 Skye Bogie 37.0 31.4 Wheel data
B 292 5' 3" 16 oval spokes Driver LMS/BR Ivatt driver 36.8 32.6 Wheel data
C 391, 392 5' 11" 18 oval spokes Driver Netherlands. NS 5500 drivers 40.1 34.7 Wheel data
C254,5,6 6' 0¾" 18 oval spokes Driver Netherlands 4-6-0 class 700 41.1 36.6 Wheel data
C348 6' 0¾" 18 oval spokes Driver Netherlands 4-6-0 class 1200 41.1 36.6 Wheel data
C 371 6' 1.2" 18 rect spokes Driver Netherlands 1000 class. 1860 mm. 41.3 36.8 Wheel data
B 374, 375 6' 0" 20 oval spokes Driver NBR 4-4-0 K/LNER D34 drivers 42.0 37.0 Wheel data
B 327 6' 0" 20 oval spokes Driver GWR early Hall 42.0 37.0 Wheel data
P 260 4' 7½" 14 oval spokes Driver GWR 2-8-2T 72xx 44.1 37.3 Wheel data
B 64, 65 6' 2" 18 oval spokes Driver LNER P2, V2 43.2 37.4 Wheel data
T 197, 8 4' 3" 14 rect spokes Driver MOS/WD 0-6-0T Austerity tank/ LNER J94 42.5 37.4 Wheel data
B 340 - 341 6' 1" 17 rect spokes Driver LTSR 4-4-2T No 1 class. 42.6 37.8 Wheel data
B382,3 6' 3½" 9 rect spokes Driver HR 4-4-0 Loch class 44.0 38.5 Wheel data
B 111 6' 3" 21 oval spokes Driver GWR 4-6-0 Hawksworth County 43.8 38.7 Wheel data
B 79 6' 2" Boxpok Driver SR Merchant Navy, West Country, Battle of Britain 43.2 39.2 Wheel data
B 310 6' 8½" 22 oval spokes Driver GWR 4-6-0 late Castle 47.0 41.7 Wheel data
B 18 6' 6" 22 oval spokes Driver GWR King. Reinforced spokes near pin 45.5 41.9 Wheel data
B 185 6' 8½" 22 oval spokes Driver GWR Star, early Castle, North Star 47.0 41.9 Wheel data
B 37 6' 9" 20 oval spokes Driver LMS 4-6-2 Duchess 47.3 42.3 Wheel data
C 373 7' 0" 22 rect spokes Driver Netherlands 4-4-0 1300 class (early). Plain hub. 47.4 43.8 Wheel data


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