Gates EuroGrip 18 Tooth 3-1/8 Inch Diameter Coupler - EG1 Part #: EG1 Line: GAT Gates EuroGrip 18 Tooth 3-1/8 Inch Diameter Coupler 1 Year Limited Warranty Belt Width (in): 1-3/8 Inch Belt Width (mm): 35mm Number Of Teeth: 18 Outside Circumference (in): 9-3/4 Inch Pitch (in): 7/16 Inch Profile Type: Curvilinear (II) Outside Diameter (in): 3-1/8 Inch Outside Diameter (mm): 79mm Show More Show Less