Winsulite slider parts

Hello I am looking for the wheels for my Winsulite double slider which was manufactured around 1960. I need 4 wheels, the dimensions are 1 3/4" diamater and the width is 3/8". The outer wheel spins on a center wheel that is 1" dia. The center hole fits on a 1/4" dia. pin.Thank you for your assistance.

I think I am all set, I placed an order for what appear to be suitable parts. Thx