Spur and bevel gearing; a treatise on the principles, dimensions, calculation, design and strength of spur and bevel gearing, together with chapters on special tooth forms and methods of cutting gear teeth (1914)
New York, The Industrial press; [etc., etc.] · leaf 174
by leaving the tooth of the hob full below the pitchline by striking an arc from a center on the pitch line, and alsoemploying a large fillet having a radius equal to 0.45 -^ P (seeFig. 17). It will be noticed that the radius of the arc at the topof the hob tooth is smaller than the radius at the… … Machinery Fig. 17. Hob Tooth designed to generate the Approximate Shape ofa 14^-degree Involute Milled Tooth nating the hammering effect due to the theoretical contact. Itwill be seen from the illustration that the thinning of the teethdoes not affect the twelve-tooth gear to any appreciable…
Gearing
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