I've been looking at ways of doing a 17.1 inch OD brake drum from a 1.5 ton 1956 Chevy truck. One video I saw the drum was wrapped on the outside with a belt to keep the ringing down. I was watching one with a real brake lathe, looks like they use cones and press plates to center the drum on a largish 1" diameter driven shaft. Seems like tooling is needed to replicate this, and use the 4 jaw to make the shaft perfect concentric.
If I was going to do it again I would make up a plate that I could bolt the drum to. The plate would have a shaft that I could center on the 4 jaw. The way I have it is nowhere rigid enough.
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I've been looking at ways of doing a 17.1 inch OD brake drum from a 1.5 ton 1956 Chevy truck. One video I saw the drum was wrapped on the outside with a belt to keep the ringing down. I was watching one with a real brake lathe, looks like they use cones and press plates to center the drum on a largish 1" diameter driven shaft. Seems like tooling is needed to replicate this, and use the 4 jaw to make the shaft perfect concentric.
If I was going to do it again I would make up a plate that I could bolt the drum to. The plate would have a shaft that I could center on the 4 jaw. The way I have it is nowhere rigid enough.