different inside diameter wheels

[Michael R.]

The C01UC 100300 ball bearings commonly found in unaltered (factory original) bogie wheels designated “CTL 94 A” measure 40 mm. x 110 mm. x 27 mm. There are two ball bearings of the same size in each bogie wheel.

The track adjuster wheel uses two ball bearings of different internal diameters, the larger internal diameter placed towards the hull. That ball bearing, C01UC 100301, is 50 mm. x 110 mm. x 27 mm.

Perhaps you could examine the wheel for the casting marks, as well as any subsequent hand stamped marks applied when the wheel may have been re-tired, or re-rubbered. The details you find may reveal the application. Early narrow spoke wheels were unable to support extreme weights, and were not to be perpetuated by re-tiring.

Straight spoke wheels of standard size can be found on each of the Canadian produced UC models through to serial number 500 of the Windsor Carrier, as well as to serial number 1900 of the American produced UC T16.

I do not have an early parts book on hand that may make reference to the earlier (17” ?) wheel. Perhaps Colin A. or Lynn E. has that information.