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Central NY | MOUNTING: For years many manufactures would tell people that they could not replace flighting on their equipment, because of stretching and special mounting practices only available at their factories.
Before modern flight rolling equipment was available, this was true,' tolerances were quite loose and flights were stretched when mounted in order to bring the inside diameter down to meet the pipe or tube. R.F.S. produces flighting on the most modern and accurate flight rolling machines in the world, as a result the flights slide onto your center tube with a minimum of clearance (be sure to remove the old flights). In order to allow the shaft to slide onto the tube there must be some clearance. The recognized standard is -0, + the material thickness. R.F.S flights are generally closer than this. It is recommended that you simply wedge a pin or a nail in between the flight and the tube in order to place the tube in the center of the flight hole, this keeps the flight from shaking when rotating. If you wish to stretch the flight down this can be done by welding one end of the flight to the tube and attaching a fence puller or come-along to the other end and pushing against the center tube while pulling on the flight. When welding the flighting back on your tube simply tack weld every 12" or 18" (use the old weld pattern as a guide). Be sure to rotate the weld spots around the shaft so they are not all on one side. Overwelding or welding on one side can cause the tube to warp.
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