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Hi! I'm working up a design for an apple grinder. I hope this is on-topic enough for the sub: The grinder will have a 5/8" shaft turning a solid wooden drum 10" in diameter and 7 3/4" wide (connected via pulleys to a burly treadmill motor). AFAICT the easiest/cheapest option is to use 5/8" shaft that is keyed the whole length. Is a keyed shaft ok to use through a couple of pillow block bearings? Or does the keying throw that off? I also want to MIG weld a metal plate on to the shaft to join it (via screws) to the wooden drum. I'm concerned that the welding might warp the shaft. My plan was to just tack one little point, let it cool off, tack another on the other side of the drum, go real slow, etc. Do you think I'd get away with it or is the shaft going to end up bending no matter what? I was just hoping to avoid the additional cost of more fittings. If the welding idea is crazy, then if you can recommend the right search terms for some kind of keyed hub, that would be awesome... something like this, but half as high, and with a keyway... I also thought about just drilling a hole through the shaft (using the flat of the keyway) and putting a pin on either side of the drum that is the attached to the drum however. Hacky, but might work... Here's an image of what I'm talking about: Thanks! [link] [comments] |
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