Home Page 1– 25 P.D. D D1 Hub Dia. Set Screw Sub Drill 4 M1.6 M2 M2 3   4.5   5.5   5.5   6   8 15 15 15 6 d* Bore H8   4.8   6   6.4   8   9.6 10 12 12.8 14 14.4 16 18 19.2 20 22 24 25.6 26 28 28.8 30 32 33.6 34 36 38 38.4 40 43.2 48 12 15 16 20 24 25 30 32 35 36 40 45 48 50 55 60 64 65 70 72 75 80 84 85 90 95 96 100 108 120   5.6   6.8   7.2   8.8 10.4 10.8 12.8 13.6 14.8 15.2 16.8 18.8 20 20.8 22.8 24.8 26.4 26.8 28.8 29.6 30.8 32.8 34.4 34.8 36.8 38.8 39.2 40.8 44 48.8 **NOTE:   Set screw and location are shown for information only. They are supplied as special order. *Bore Tolerance: 3 mm  + 0.014 4 &6 mm  + 0.018 No. of Teeth 20° PRESSURE ANGLE 5 mm FACE WIDTH ISO CLASS 8 Spur Gears - Module 0.4 B C P Y Material Code Brass ASTM 8A Steel SAE 1109 Acetal Stainless Steel AISI 416 Prehardened to HRC 25 CATALOG NUMBER DESIGNATION: A   1        2 M Y 0 4 10 10 M2 M3 M3 M3 1.3 1.8 1.8 1.8 0.9 1.3 1.3 ** ** D1 P.D. D 5 7 d 3.5** 12 No. of Teeth