Questions regarding wheel width

Questions regarding wheel width

Postby taiwest » Fri Sep 24, 2010 3:03 pm

Could somebody please help me out with some information.

From what I have been able to ascertain, standard freight wheels are typically 5 1/2" wide, but I have seen some documentation going as high as 6 11/16".

I have had more difficulty finding anything specific on steam loco driver wheels. What I have seen states between 6 - 7". Does anyone know if this is correct? If so was the extra width due to the weight of the locomotive/loading of the wheels, as the contact surface would remain the same?

Thanks in advance.

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