Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 241
AWING of teeth by the diametral pitch, equal 8 and 16 inches(48 -f- 6 = 8 and 96 -r- 6 = 16). The outside or blank diam-eter of a spur gear is obtained by adding 2 to the numberof teeth and dividing the sum by the diametral pitch. Inthis example, the outside diameter of the large gear equals 96 + 2… … Machinery Fig. 18. Working Drawing of a Spur-gear Drive equals, in this case, 0.3595 inch. This is the amount thatthe cutter is fed in radially when cutting teeth (assuming thatthe gear blank is turned to the correct diameter), and it shouldpreferably be given on a working drawing. Designers often…
Mechanical drawing
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