Fitting the Ikarus Aluminium Auto Bearing Hub

by Bert Van Kets

Note

Click on the thumbnail images to get a bigger version

	The alu auto hub is a tiny little bit too big to fit in the main gear rim. If you force it in, you will warp the main gear and it won't run true any more. Here you can see it sitting on top of the main gear rim.
	Put the hub on the main shaft and chuck it in a drill or drill press. If it spins freely when you turn the drill on, just turn the auto hub over. Use a bit of sanding paper or a file to sand a bit of the hub by holding it against the side. The anodysing will come off, but there's nothing you can do about that. You can fit it on the main gear without taking it off. Do it bit by bit untill the main gear fits.
	Here you see the result. The hub fits snugly inside the rim of the main gear.
	Always use blue Threadlock on any screw that is making metal to metal contact.
	Fasten the screws very slightly and then tighten them diagonally. Just follow the numbers on the picture. Don't overtighten or you will warp the main gear.
	Here's a view of the hub fitted in the main gear like it should be.