homemade split sprockets?

[flippy]

Has anyone tried making a split sprocket?I know they are used in industrial conveyor applications.I have a plan to install reverse on my scrambler.I want to install a 30 tooth sprocket on my main clutch shaft without removing evrything on the shaft.My idea is to cut the sprocket and sprocket hub in half then modify them so they can be put on the clutch shaft and bolted back together.Maybe a member has tried this and can save me some time and frustration with some info??

[whipper-ag]

[gearhead1937]

I don't know if it will work for you, but I've got an old racing gokart that uses split sprockets to change gearing at the track w/o total disassemble. I just threw a few pics up of what is looks like in my gallery.



They use a small chain (bike chain) but if it is only for reverse it might work. Let me know if you need measurements or anything else.

[flippy]

Thanks for the pics.My plan is to hook up a simple way to tighten the chain on the split sprocket and thats only for going in reverse to get out of the garage.Maybe a destaco clamp with a roller skate wheel or something.Once the chain is loose I will just let it hang or attch it somehow so that its not in contact with the sprocket on the clutch shaft.I dont know if it will work but I have already spent the $30 and split one of the weldasprocket hubs.I will put pictures up if everything works.I refuse to be stuck trying to use floor jacks in the ice and snow this winter to get the scrambler out of my tiny garage.gearhead1937 you will be the first one I send a message to for parts info if my plans are a failure.

[gearhead1937]

Could you do something with a v-belt pulley and a starter/generator off of a golfcart? A chain, even a loose one, scares me. Just think what could happen if the chain catches a tooth while bouncing around. Find an old starter/generator, use it to backup then when it is done it will charge the battery. No need to make it loose. This is all theory because I've never seen your machine.

[flippy]

I have gone the v belt pulley thing before on other projects.It does not work on something that has weight and needs torque.A timing or cogged belt would work but chain and sprockets are easier.(and cheaper)I understand the safety concerns.I used to have to set up large roll coating machines for car spare tire covers-the rollers would need to be changed often due to differences in the material and adhesive or glue being rollcoated.Everything was operated by chains and sprockets with all types of tensioners etc.If I had to I could just pop the master link off and put the chain in a box then reinstall.Like everything homemade I am sure that I will run into problems but If I dont try I will go nuts thinking about it.I am always working on a very small budget so knowing me I will end up spending more money trying to save money!