Roller for bending flat bar - Printable Version +- MetalworkingFun Forum (http://www.metalworkingfun.com) +-- Forum: Machining (http://www.metalworkingfun.com/forum-5.html) +--- Forum: General Metalworking Discussion (http://www.metalworkingfun.com/forum-6.html) +--- Thread: Roller for bending flat bar (/thread-2863.html)

Roller for bending flat bar - chucketn - 10-07-2015 Somewhere I recall seeing a write up on making a flywheel rim or maybe a traction engine wheel from flat stock by rolling it into a circle. Can anyone point me to such a build? What is that type of roller called? Any plans for such floating around? Chuck RE: Roller for bending flat bar - f350ca - 10-07-2015 As usual I don't have plans Chuck but here is one I made, they're called a slip roll I think. Seams the larger the rollers the less chance of them slipping while your rolling stock, I also tied the two lower ones together with a roller chain drive. I've seen commercial ones that tie one of the bottom rollers to the top one with a gear drive. I've rolled 5/16 plate 13 inches wide with this one. Takes amazingly little torque to turn the rollers when forming the ring. Because of the roller spacing mine leaves about 3 inches unrolled at the end of the stock, but if I weld the ends together and roll the completed ring it comes out round. Oh the top axle is removable to get the ring out. RE: Roller for bending flat bar - Roadracer_Al - 10-07-2015 Nice work, Greg. A slip roll is typically associated with sheet metal. A pyramid roll is what you've built. Same mechanical principles but different executions.