9MM Belt Width; 3MM Belt Pitch; 3MR-9 Powergrip GT2 Belt Style; 20 Teeth; 10.185MM Face Width; Rough Bore; 22.733MM Flange OD; 18.339MM OD; 19.101MM Pitch Diam; No Keyway; No Bushing; Minimum Plain Bore; 0.25" Max Bore