Module System Gearing Machinery's Handbook, 31st Edition
2297
Tooth Dimensions Based Upon Module System
Module, DIN Standard Series
Circular Pitch
Whole Depth, b Millimeters
Whole Depth, a Millimeters
Equivalent Diametral Pitch
Addendum, Millimeters
Dedendum, Millimeters a
Millimeters
Inches 0.0371 0.0495 0.0618 0.0742 0.0865 0.0989 0.1113 0.1237 0.1546 0.1855 0.2164 0.2474 0.2783 0.3092 0.3401 0.3711 0.4020 0.4329 0.4638 0.4947 0.5566 0.6184 0.6803 0.7421 0.8035 0.8658 0.9895 1.1132 1.2368 1.3606 1.4843 1.6079 1.7317 1.8541 1.9790 2.2263 2.4737 2.7210 2.9685
0.3 0.4 0.5 0.6 0.7 0.8 0.9
84.667 63.500 50.800 42.333 36.286 31.750 28.222 25.400 20.320 16.933 14.514 12.700 11.289 10.160 9.236 8.466
0.943 1.257 1.571 1.885 2.199 2.513 2.827 3.142 3.927 4.712 5.498 6.283 7.069 7.854 8.639 9.425 10.210 10.996 11.781 12.566 14.137 15.708 17.279 18.850 20.420 21.991 25.132 28.274 31.416 34.558 37.699 40.841 43.982 47.124 50.266 56.549 62.832 69.115 75.398 84.823 94.248
0.30 0.40 0.50 0.60 0.70 0.80 0.90 1.00 1.25 1.50 1.75 2.00 2.25 2.50 2.75 3.00 3.25 3.50 3.75 4.00 4.50 5.00 5.50 6.00 6.50
0.35 0.467 0.583 0.700 0.817 0.933 1.050 1.167 1.458 1.750 2.042 2.333 2.625 2.917 3.208 3.500
0.650 0.867 1.083 1.300 1.517 1.733 1.950 2.167 2.708 3.250 3.792 4.333 4.875 5.417 5.958 6.500 7.041 7.583 8.125 8.666 9.750
0.647 0.863 1.079 1.294 1.510 1.726 1.941 2.157 2.697 3.236 3.774 4.314 4.853 5.392 5.932 6.471 7.010 7.550 8.089 8.628 9.707 10.785 11.864 12.942 14.021 15.099 17.256 19.413 21.571 23.728 25.884 28.041 30.198 32.355 34.512 38.826 43.142 47.454 51.768 58.239 64.713 71.181 77.652 84.123 90.594 97.065 107.855 118.635 129.426 140.205 150.997 161.775
1
1.25 1.5 1.75 2.25 2.5 2.75 2 3.25 3.5 3.75 3
7.815 7.257 6.773 6.350 5.644 5.080 4.618 4.233 3.908 3.628 3.175 2.822 2.540 2.309 2.117 1.954 1.814 1.693 1.587 1.411 1.270 1.155 1.058 0.941 0.847
3.791 4.083 4.375 4.666 5.25 5.833 6.416 7.000 7.583 8.166 9.333 10.499 11.666 12.833 14.000 15.166 16.332 17.499 18.666 21.000 23.332 25.665 28.000 31.498 35.000 38.498 41.998 45.497 48.997 52.497 58.330 64.163 69.996 75.829 81.662 87.495
4
4.5
5
10.833 11.916 13.000 14.083 15.166 17.333 19.499 21.666 23.833 26.000 28.166 30.332 32.499 34.666 39.000 43.332 47.665 52.000 58.498 65.000 71.498 77.998 84.497 90.997 97.497 108.330 119.163 129.996 140.829 151.662 162.495
5.5
6
6.5
7 8 9
7. 8. 9.
10 11 12 13 14 15 16 18 20 22 24 27 30 33 36 39 42 45 50 55 60 65 70 75
10. 11. 12. 13. 14. 15. 16. 18. 20. 22. 24. 27. 30. 33. 36. 39. 42. 45. 50. 55. 60. 65. 70. 75.
3.339 3.711 4.082 4.453 4.824 5.195 5.566 6.184 6.803 7.421 8.040 8.658 9.276
0.770 103.673 0.706 113.097 0.651 122.522 0.605 131.947 0.564 141.372 0.508 157.080 0.462 172.788 0.423 188.496 0.391 204.204 0.363 219.911 0.339 235.619
a Dedendum and total depth when clearance = 0.1666 × module, or one-sixth module. b Total depth equivalent to American standard full-depth teeth. (Clearance = 0.157 × module.)
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