I have a small, belt-drive, WoodMaxx WC-8N chipper (a re-badged Chinese Jinma 8C) I bought new 3 years ago. My tractor is a B7500 HST and the chipper is a good match for the PTO HP (overriding factor). The chipper uses 5 or 6 belts to spin the 185lb flywheel. There's plenty of drive "traction"...