Attributes . 12MM Belt Width; 8MM Belt Pitch; 8M-12 Poly Chain GT2 Belt Style; 30 Teeth; 14.478MM Face Width; Rough Bore; 86.614MM Flange OD; 74.803MM OD; 76.403MM Pitch Diam; No Keyway; No Bushing; Minimum Plain Bore; 1.125" Max Bore . Names