Machinery's Handbook for Machine Shop and Drafting-roomIndustrial Press, 1942 - Mechanical engineering |
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Page 791
... gears where the helix angle of the pinion is 60 degrees ; of the gear , 30 degrees ; speed ratio , 2 to 5 ; diametral pitch , 6 . From the table , Ct = 2.4435 ... Helical Gears 14.780 13.6077 12.6002 11.7246 10.9560 HELICAL GEARING 791.
... gears where the helix angle of the pinion is 60 degrees ; of the gear , 30 degrees ; speed ratio , 2 to 5 ; diametral pitch , 6 . From the table , Ct = 2.4435 ... Helical Gears 14.780 13.6077 12.6002 11.7246 10.9560 HELICAL GEARING 791.
Page 799
cutter for milling helical gears . The table is used as follows : Multiply the actual number of teeth in the helical gear to be cut by the factor K , as given in the table opposite the angle of helix . The product gives the number of ...
cutter for milling helical gears . The table is used as follows : Multiply the actual number of teeth in the helical gear to be cut by the factor K , as given in the table opposite the angle of helix . The product gives the number of ...
Page 814
... helical gears ( as ex- plained later ) , the pin diameters must equal 1.68 divided by the normal diametral pitch . Pin sizes conforming to the general rule given will contact slightly above the pitch line , so that in measuring gears ...
... helical gears ( as ex- plained later ) , the pin diameters must equal 1.68 divided by the normal diametral pitch . Pin sizes conforming to the general rule given will contact slightly above the pitch line , so that in measuring gears ...
Contents
MATHEMATICAL TABLES | 1 |
FUNDAMENTAL MATHEMATICAL PRINCIPLES AND FORMULAS | 111 |
LOGARITHMS AND LOGARITHMIC TABLES | 127 |
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addendum alloy approximately axis beam bearing belt bevel gears cast iron cent center distance center of gravity chain chordal circular pitch clearance Cosine Sine Cotan cutter cutting speed deflection degrees depth Diam diametral pitch dimensions divide driving equal Example factor factor of safety feed feet per minute flywheel given helical gears helix angle horsepower keyway length load lubricant machine material maximum metal moment of inertia multiply number of teeth obtained pinion pitch circle pitch cone pitch diameter pitch line plate pounds per square pressure angle pulley radius ratio revolutions per minute rivets roller roller chains rope rule Secant Cosec Secant Vrs shaft shearing side Sine Cosine spring sprocket spur gears square inch Standard steel stress surface tensile strength thickness tool tooth torsional Trigonometric Functions velocity wheel width Wire worm gearing ΙΟ