Has anyone keyed IFI wheels instead of using the bearings?

Technical Technical Discussion
1

I need to find a simple way to key the ifi wheels to the drive shaft.
any insight(words, pictures, inventor files) would be much appreciated

-matt

2

We used the AM hubs to key our IFI wheels to an axle…

http://andymark.biz/am-0077.html

3

The AM universal hubs linked above have an identical bolt-hole pattern to the one on the IFI traction wheels that is typically used for a sprocket. They are also really, really light…

-Dillon Compton

4

You other option being to lathe and broach something similar to the AM one, but use the bolt holes for the bearing retainers instead of the ones for the sprockets.