A handbook on the teeth of gears, their curves, properties and practical construction (1885)
Grant, George B. (George Barnard), 1849-1917 · [Boston] · leaf 27
20 2;-.. 86 22.30 .96 8.26 7.3> 576 289-rack 9.60 73.95 70.10 2.88 23.65 22.30 INTERFERENCEFOR TWELVE TO RACK INTERCHANGEABLE SET. TeethIn the gear. 12 1314 15 17 16 18 1921 2224 2529 3036 3748 491 7372 1 144 145 00 Pitch. Amount of the Interference. One in. cir. .003 .007 .007 .007 .007 .007… … INVOLUTE TEETH. INTERCHANGEABLE SERIES. Example.—A rack, and a pinion of twelve teeth, of two diametral pitch. Data.—From the tables we have, after dividing by 2, the base distance.10, face radius 1.35, and flank radius .42^ The addendum is .5, theclearance .06, and the pitch diameter 6. inches.…
Gearing
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