Sourcing drive wheels

I've been trying to source driving wheels for a 3 1/2" loco. without any luck.

The finished size is 5.080" Dia. prototype 7' 3" Dia.

Any ideas where I might find some. Preferably off the shelf rather than having them cast.

Number of spokes?

Balance weight size and position (if integrally cast)?

Boss size?

Reeves **LINK** have a wheel search on their home page.

HTH,

Rod

Blackgates have 3 pages of wheels in the back of there down loadable catalogue, there Flying Scotsman drivers look possible.

Paul

Thanks for that, seems like I'm in business.

In 3 1/2" gauge 7ft 3in converts to 5.438" . Flying Scotsman's 6ft 8in wheels 5" exactly on tread.

LBSC's Miss Ten to Eight should have 5.125" wheels if they are to scale.

Eddie

Edited By 61962 on 23/11/2016 22:33:00

Academic, as you can lose an inch or more on the diameter once the tyre has been reprofiled several times.

Neil

Good afternoon Eric,

I'm a bit muddled, 7' 3" if for 3½″ gauge 1/16" =1" 7' 3" equates to 5⁷/₁₆” 5.4372 further some idea of spokes, boss shape etc, protype may be of assistance, you never know someone may be able to help.

Regards,

Bob

Neil,

Not really academic. These are the new sizes of the wheels. I don't suppose many model engineers build locos with worn out wheels. If the OP is building a 7' 3" engine I would assume he's looking for wheels for that size or as near as possible, but I'm highlighting the model size he's looking for at 5.08" is nearly 3/8" too small. If he can get wheels within an 1/8th of an inch of what he's after then I'm sure that will be OK, but you have to start from somewhere and the new size is that. It's quite an odd size and it would be interesting to know what prototype locomotive he's modelling.

Eddie