Spur Gears: 32 Diametral Pitch Ratings

20° Pressure Angle*

3/16″ Face

Number of Teeth Pitch diameter Outside Diameter Stock Bore Hub Diameter Hub Projection Style Catalog Number
Brass
Steel
12
.375
.4375
1/8
9/32
1/4
Plain
TBT3212
TST3212
14
.4375
.5000
1/8
11/32
1/4
Plain
TBT3214
TST3214
16
.500
.5625
3/16
13/32
1/4
Plain
TBT3216
TST3216
18
.5625
.6250
3/16
7/16
1/4
Plain
TBT3218
TST3218
20
.625
.6875
3/16
15/32
1/4
Plain
TBT3220
TST3220
24
.750
.8125
3/16
17/32
1/4
Plain
TBT3224
TST3224
28
.875
.9375
3/16
19/32
1/4
Plain
TBT3228
– – – – –
32
1.000
1.0625
1/4
21/32
1/4
Plain
TBT3232
– – – – –
36
1.125
1.1875
1/4
23/32
1/4
Plain
TBT3236
– – – – –
40
1.250
1.3125
1/4
23/32
1/4
Plain
TBT3240
– – – – –
48
1.500
1.5625
1/4
25/32
1/4
Plain
TBT3248
– – – – –
56
1.750
1.8125
5/16
27/32
1/4
Plain
TBT3256
– – – – –
64
2.000
2.0625
5/16
29/32
1/4
Plain
TBT3264
– – – – –
72
2.250
2.3125
5/16
7/8
5/16
Plain
TBS3272
– – – – –
80
2.500
2.5625
5/16
7/8
5/16
Plain
TBS3280
– – – – –
96
3.000
3.0625
5/16
1
5/16
Plain
TBS3296
– – – – –