Ametric&reg; 20S827 Inch Steel Spur MPB Gear, 20 Deg 8DP, 27 Teeth, 7/8 Inch +/-1/16" Pilot Bore (B), 1-1/2" Face Width (F), 2-3/4 Inch Hub Dia (H), 0.875 Inch Hub Projection (P), 2-3/8 Inch total width, 3.625 Inch OD, (1-125)