Source for drive Pulleys?

[emisnug]

Hmm. Looking at a bunch of posts on here I think perhaps I have the wrong idea for my wheel set up. It looks like most people are threading into the wheel or using hex fittings so the shaft ?

I was going for a floating shaft supported by pillow bearings and clamped at both ends with a smooth bore polypropylene castor wheel (already bought) attached to the belt pulley with adhesive, screws and clamps.

If you've already designed for a floating shaft, why not use a keyway for your drive? You can pick up castor wheels with keyways in them for fairly cheap, and belting online can cut keyways for you at a very reasonable cost.

[lowndsy]

That might be an option, thanks Robert.

I have all the parts for the current design so I'll give it a go as-is, but if it doesn't look reliable I'll have a rethink.