Red Devil 1400, 5100, and 5400 round belt.
Round orange drive belt. These belts work for the Red Devil 1400, 1410, 5100, 5110, 5400, 5410 and some of the Cat 30's. The only other style of belt for these machines is a v-belt. If you have a round belt like this one, then this is the right belt that you need. Models 5100, and 5110 require belt tensioning.