Brown & Sharpe Mfg. Co.
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TABLE OF TOOTH PARTS
DIAMETRAL PITCH IN FIRST COLUMN
| Diametral Pitch. | Circular Pitch | Thickness of Tooth on Pitch Line. | Addenedum and Module. | Working Depth of Tooth | Depth of Space below Pitch Line. | Whole Depth of Tooth |
|---|---|---|---|---|---|---|
| P | P′ | t | s | D″ | s+f. | D″+f. |
| 1⁄2 | 6.2832 | 3.1416 | 2.0000 | 4.0000 | 2.3142 | 4.3142 |
| 3⁄4 | 4.1888 | 2.0944 | 1.3333 | 2.6666 | 1.5428 | 2.8761 |
| 1 | 3.1416 | 1.5708 | 1.0000 | 2.0000 | 1.1571 | 2.1571 |
| 11⁄4 | 2.5133 | 1.2566 | .8000 | 1.6000 | .9257 | 1.7257 |
| 11⁄2 | 2.0944 | 1.0472 | .6666 | 1.3333 | .7714 | 1.4381 |
| 13⁄4 | 1.7952 | .8976 | .5714 | 1.1429 | .6612 | 1.2326 |
| 2 | 1.5708 | .7854 | .5000 | 1.0000 | .5785 | 1.0785 |
| 21⁄4 | 1.3963 | .6981 | .4444 | .8888 | .5143 | .9587 |
| 21⁄2 | 1.2566 | .6283 | .4000 | .8000 | .4628 | .8628 |
| 23⁄4 | 1.1424 | .5712 | .3636 | .7273 | .4208 | .7844 |
| 3 | 1.0472 | .5236 | .3333 | .6666 | .3857 | .7190 |
| 31⁄2 | .8976 | .4488 | .2857 | .5714 | .3306 | .6163 |
| 4 | .7854 | .3927 | .2500 | .5000 | .2893 | .5393 |
| 5 | .6283 | .3142 | .2000 | .4000 | .2314 | .4314 |
| 6 | .5236 | .2618 | .1666 | .3333 | .1928 | .3595 |
| 7 | .4488 | .2244 | .1429 | .2857 | .1653 | .3081 |
| 8 | .3927 | .1963 | .1250 | .2500 | .1446 | .2696 |
| 9 | .3491 | .1745 | .1111 | .2222 | .1286 | .2397 |
| 10 | .3142 | .1571 | .1000 | .2000 | .1157 | .2157 |
| 11 | .2856 | .1428 | .0909 | .1818 | .1052 | .1961 |
| 12 | .2618 | .1309 | .0833 | .1666 | .0964 | .1798 |
| 13 | .2417 | .1208 | .0769 | .1538 | .0890 | .1659 |
| 14 | .2244 | .1122 | .0714 | .1429 | .0826 | .1541 |
