I have a good friend that owns a machine shop specializing in repairing rollers and drums (used in manufacturing plants). they can be repaired many times, but at some point are so out of spec that they become useless (to them!). these drums and rollers range from 3" dia. to 4' dia. and as long as 12-15'. look in your local phone book...the irst one you call may not be the one that does drums and rollers but they may be able to point you in the right direction.