Thread: Glueing tyre

Is it just my eyes or do the tyres look like they have a concave surface?

If so no wonder the blades comes off.
It sounds wrong but the surface must be convex for the the blade to stay on the tyre.

You are 100% correct Bob they should be convex to allow adjustment of tracking.
Am pretty sure you don't normally glue them on but may stand corrected on that point.

Originally Posted by BobL

Is it just my eyes or do the tyres look like they have a concave surface?

If so no wonder the blades comes off.
It sounds wrong but the surface must be convex for the the blade to stay on the tyre.

Rubber tyres often need gluing, urethane tyres should not need it. The stuff they use on car tyres when fitting new tyres to the rims would be good, I dunno what it is though. Or a bit of superglue.

Im guessing the bandsaw only had an upper blade guide, no lowers?

Hi guy's,
The tyre is not concave the dark line on the wheel is where the blade has been running and creates the illusion but it is not. The saw has both upper and lower guides adjusted to the blade,the blade has been cutting very well I had cut a 150mm deep 200mm dia bowl blank and it cut easily.
Regards Rod.

Hi again,
The drive wheel which is the one with the tyre missing is flat faced with a groove machined into the face the 2 original tyre's are convex and the wheels are flat those tyre's seem to be fine. The 3 new tyre's I purchased are flat urethane. Should I try to shape the new tyre thinking could I turn them slightly convex what do you think would it be possible? I have heard of wrapping the centre of the wheel with narrow masking tape to create convex? Ican only think the origional tyre would have had a rib running in the groove around the wheel this would I imagine give some lateral support to the tyre I can only hope that it will stay put with glue. Any suggestions or advise welcome.
Regards Rod.

Originally Posted by Rod Gilbert

Hi again,
The drive wheel which is the one with the tyre missing is flat faced with a groove machined into the face the 2 original tyre's are convex and the wheels are flat those tyre's seem to be fine. The 3 new tyre's I purchased are flat urethane. Should I try to shape the new tyre thinking could I turn them slightly convex what do you think would it be possible? I have heard of wrapping the centre of the wheel with narrow masking tape to create convex? .

Yep, not much of a convex surface is required. I would try with just one layer of masking tape about 1/3 of the tyre width.
If that doesn't work add a 1/6th width strip on top of that.

Thank you Bob,
Would you suggest gluing the tyre what glue would bond to urethane. The blade was tracking fine with the new flat tyre while in use prior to the tyre moving back on the wheel. The new tyre's came with direction's to heat tyre in hot water and a tool to help stretch the tyre on it was very tight to get on but now can be moved sideways on the wheel quite easily that is why I am thinking glue. Could I fill the groove in the wheel with something that will bond to the urethane (sikaflex or the like?
Regards Rod.

Originally Posted by Rod Gilbert

Thank you Bob,
Would you suggest gluing the tyre what glue would bond to urethane. The blade was tracking fine with the new flat tyre while in use prior to the tyre moving back on the wheel. The new tyre's came with direction's to heat tyre in hot water and a tool to help stretch the tyre on it was very tight to get on but now can be moved sideways on the wheel quite easily that is why I am thinking glue. Could I fill the groove in the wheel with something that will bond to the urethane (sikaflex or the like?
Regards Rod.

Sikaflex if you have it would probably do it.
Just check the temperature rating - some silicones are able to handle higher temperatures than others.
If you have to buy some I would go for HT silicone as it can handle higher temps.
Use it sparingly just a thin film should be enough.

Thanks again Bob,
I will get some HT silicone and give it a go when I can get out, the local creek crossings are all still well over and can't go anywhere at the moment.
Regards Rod.