Spur Gear; 2-7/16" Bore; 10-1/2" Pitch Diameter; 4 DP; 2" Face Width; Finished Bore; 42 Teeth; 14-1/2 Degree Pressure Angle; No Minimum Plain Bore; 3-1/8" Max Bore; 5-1/8" Hub Diameter; Steel; Yes Hardened Teeth