These gears have a 'plain bore', no keyway, no set screws, they are meant for you to
bore out yourself and broach in your own keyway.
20 Pitch Steel Spur Gears - 3/8" face # of Teeth Stock Bore Max Bore Pitch Dia.
Hub Dia. Approx.
Weight (lb)12 .312" - .600" .46" .03 13 .312" - .650" .50" .04 14 .312" - .700" .56" .05 15 .375" - .750" .60" .06 16 .375" - .800" .65" .07 18 .375" .375" .900" .75" .09 20 .375" .437" 1.000" .85" .12 22 .375" .500" 1.100" .95" .15 24 .375" .562" 1.200" 1.06" .19 25 .375" .562" 1.250" 1.10" .21 28 .375" .687" 1.400" 1.26" .27 30 .375" .750" 1.500" 1.35" .32 32 .375" .875" 1.600" 1.43" .4 35 .375" .875" 1.750" 1.56" .5 36 .375" .937" 1.800" 1.62" .5 40 .375" 1.062" 2.000" 1.81" .7 45 .375" 1.250" 2.250" 2.00" .8 48 .375" 1.250" 2.400" 2.00" .9 50 .375" 1.250" 2.500" 2.00" .9 60 .375" 1.250" 3.000" 2.00" 1.1 64 .375" 1.250" 3.200" 2.00" 1.2 70 .375" 1.250" 3.500" 2.00" 1.4 72 .375" 1.250" 3.600" 2.00" 1.5 80 .500" 1.250" 4.000" 2.00" 1.7 84 .500" 1.250" 4.200" 2.00" 1.9 90 .500" 1.250" 4.500" 2.00" 2.0 96 .500" 1.250" 4.800" 2.00" 2.3 100 .500" 1.250" 5.000" 2.00" 2.4
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