Finding 550-motor worm ? Answered
Recently I bought a bunch of 550-size (drill) motors from eBay, and I've really been itching lately to build some worm gearboxes out of them, the purpose of which would be a robotic arm or anything that requires huge amounts of torque. However, I haven't been able to find a site that supplies metal worms that fit on 1/8 inch shafts, at a reasonable price. Almost all sites I've seen supply only automotive-style parts, but of course I don't need heat-treated steel. Or, for that matter, to lighten my wallet by $20 for a single worm.
As for the worm itself, I don't have any other requirements other than that it needs to be metal (lots of strain on them) and have an inner-diameter of 1/8 inch. It doesn't have to have a set screw or fancy collar or anything- just a plain worm.
I'd really like to find a store that sells these at a reasonable price, as I will need around 20 of them. Could someone help me out?