Re: Brake lathe question

Posted by bear On 2022/5/2 8:16:39

Drum turning machines are crude compared to an engine lathe. Often the mechanic will assume that the drum is running true after he mounts it.That isnt always the case. Im a retired master machinist, and I always turned my own on a regular engine lathe. They should be checked with a dial indicator before cutting. If the new machined surface is eccentric relative to the bearing race, it would cause the condition that you describe.