Mechanical & Drive
     Gears

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 Diametral Pitch (3/8" face)

16 Diametral Pitch (1/2" face)

12 Diametral Pitch (3/4" face)

12 Pitch Steel Spur Gears - 3/4" face
# of Teeth	Stock Bore	Max Bore	Pitch Dia.	Hub Dia.	Approx. Weight (lb)
12	.500"	-	1.000"	.75"	.15
13	.500"	.500"	1.083"	.81"	.20
14	.500"	.500"	1.167"	.90"	.25
15	.625"	.625"	1.250"	1.00"	.26
16	.625"	.625"	1.333"	1.06"	.31
18	.625"	.687"	1.500"	1.25"	.4
20	.625"	.812"	1.667"	1.40"	.5
21	.625"	.875"	1.750"	1.50"	.6
22	.625"	.875"	1.833"	1.56"	.7
24	.625"	1.000"	2.000"	1.75"	.9
28	.625"	1.250"	2.333"	2.06"	1.3
30	.625"	1.312"	2.500"	2.25"	1.6
32	.625"	1.375"	2.667"	2.40"	1.9
36	.625"	1.375"	3.000"	2.50"	2.3
40	.625"	1.375"	3.333"	2.50"	2.6
42	.625"	1.375"	3.500"	2.50"	2.8
48	.750"	1.375"	4.000"	2.50"	3.7
54	.750"	1.375"	4.500"	2.50"	4.3
60	.750"	1.375"	5.000"	2.50"	5.1
64	.750"	1.375"	5.333"	2.50"	5.7

 

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