Formulas in gearing, with practical suggestions (1892)
Providence, Brown · leaf 53
- ^ From this formula we obtain the following values : N 29 28 27 26 25 24 23 22 21 20 2 y 30K 31 3i>^ 32X132^ 2>Z% 34K 35 36 37 N 19 18 17 16 15 14 13 12 2 y 38 39 40 4i>^ 42^ 44^ 46K 48 As this latter formula involves the making of new hobs inmany cases, on account of change of angle, we… … Fig. 9. In spiral gearing the wheels have cylindrical pitch surfaces,but the teeth are not parallel to the axis. The line in whichthe pitch surface intersects the face of a tooth is part of ascrew line, or helix, drawn at the pitch surface. A screwwheel may have one or any number of teeth. A…
Gearing
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