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WHEEL CLASSIFICATION


 

As with everything we are also kept to restrictions. Also regarding the use of measures such as wheels, wheel distance, flanges, buffers, width etc.

 Kennwerte von Gleis und Radsatz


 

The measurements given below refer standard gauge. Narrow gauge, meter gauge and industrial railways were not considered.

Explanation :

G gauge in inch
G gauge in mm
B wheel distance (callage)
N wheel thickness minimum
T total flange thickness
F felnge thickness
D height of flange
S counter rail opening
Ad thicknes driving axels
Al thickness running axels
Br total width of carriages

 

Code

G

G

B

N

T

F

D

S

Ad

Al

Br

3

3

89

68

10,5

2,3

1,9

3,5

2,3

14

10

210

5

5

127

119

14,5

4,5

2,4

4

5

20

16

270

7

7

184

172

21

6

3,2

5

6

30

24

370

You may want to use your calculator so you will notice that the wheel flanges are wider and higher than it should be to the dimensions of the real example.

It has its meaning. Model Locomotives make tighter turns and have perhaps more uneven horizontal tracks.

Also, when a locomotive runs over a switch, the wheel must not be too narrow, otherwise it clamps between the counter rails.

Higher flanges prevent the derailment of course, but never use to high flanges. Therefore keep to the given sizes size .

As you can see the tread of the wheel is not perpendicular to the wheel, but in a gradient of 2 to 3 degrees. So it "encourages" the wheel better. In the prototype there is a small portion of the wheel tread thet is square and the rest goes into a slope of 1:20.

 

2018  Dani Bellemans
last update 23/08/2018