Timing belts are meant to wear-out every once a while, and for this reason, Onfloor Technologies has the perfect replacement for your OF18 Edge S-4. Your machine requires a timing belt with a pull up to 600LK x ½” wide, and that is the maximum it can reach. So, what are you waiting for? Hurry now! Although the timing belt has not been discontinued, you should hurry and get yours now!