Mounting the drive gear on my wheel hub.

[Reno Speedster]

I have installed one of the hubs with the machined shoulder for mounting the speedo drive gear and I have stewart 60 tooth gear with the holes that line up with the three small holes in the hub. (See the pictures) My question is this, do I need some sort of spacer to go between the gear and the hub, or do I just use screws and rely on the turned shoulder for positioning. I think the layer is correct, but want to be sure before I do anything.

[Steve Jelf]

On hubs through 1918 no spacers are needed. The machined flange holds the gear "level". But does your hub have the three screw holes? I don't see them in the picture.

[Corey Walker]

You will need to get spacers to use with the screws and center it up. The hole in the 11077 gear is larger than the hub. The gear for use with the machined hub is smaller and screws to the hub instead of the spokes.

[Reno Speedster]

Yes, the hub has the three holes. It’s there in the photo, but it’s a bit hard the see.

The inside of the gear fits the hub perfectly and the holes in the gear are the same size as the holes in the hub.

Based on that, it looks like no spacer is required.

[Steve Jelf]

The gear for use with the machined hub is smaller...

Road gears come in various sizes and configurations. My 1916 Stewart Model 100 uses a #8685 road gear that is much larger than the one in Corey's picture. I believe the #8685 and the #11077 introduced in 1920 have the same 60T 8P gear cut and fit the flanged hub with no need for spacers. The #11077 gear can also be used with spacers on later hubs.

[Reno Speedster]

My #11077 fit nicely and the wood screws do a good job of holding it down. Time to pack some bearings and get the front wheels back on.