Standard Spur Gears
1983 Products
Standard Spur Gears
Feature straight teeth, high efficiency, and reliable power transmission for parallel shaft applications.
Part Number
Number Of Teeth
Pitch Diameter
Bore Dia
OD
Material
Hub Diameter
Hub Projection
Diameter Pitch
Face Width
Pressure Angle
>
Part Number
Number Of Teeth
Pitch Diameter
Bore Dia
OD
Material
Hub Diameter
Hub Projection
Diameter Pitch
Face Width
Pressure Angle
>
NA24-1/2
24
1.2"
0.5"
1.3"
STEEL
0.92"
0.38"
20
0.375"
14.5 °
NA25B-1/2
25
1.25"
0.5"
1.35"
STEEL
0.97"
0.38"
20
0.375"
14.5 °
NA28B-1/2
28
1.4"
0.5"
1.5"
STEEL
1.12"
0.38"
20
0.375"
14.5 °
NA30B-1/2
30
1.5"
0.5"
1.6"
STEEL
1.22"
0.38"
20
0.375"
14.5 °
NA32-1/2
32
1.6"
0.5"
1.7"
STEEL
1.32"
0.5"
20
0.375"
14.5 °
NA35-1/2
35
1.75"
0.5"
1.85"
STEEL
1.47"
0.5"
20
0.375"
14.5 °
NA36-1/2
36
1.8"
0.5"
1.9"
STEEL
1.52"
0.5"
20
0.375"
14.5 °
NA40-1/2
40
2"
0.5"
2.1"
STEEL
1.72"
0.5"
20
0.375"
14.5 °
NA80
80
4"
0.5"
4.1"
CAST IRON
1.25"
0.5"
20
0.375"
14.5 °
NA84
84
4.2"
0.5"
4.3"
CAST IRON
1.25"
0.5"
20
0.375"
14.5 °
NA90
90
4.5"
0.5"
4.6"
CAST IRON
1.25"
0.5"
20
0.375"
14.5 °
NA96
96
4.8"
0.5"
4.9"
CAST IRON
1.25"
0.5"
20
0.375"
14.5 °
NB15B
15
0.938"
0.5"
1.063"
STEEL
0.75"
0.44"
16
0.5"
14.5 °
NB15B-1/2
15
0.938"
0.5"
1.063"
STEEL
0.75"
0.44"
16
0.5"
14.5 °
NB16B
16
1"
0.5"
1.125"
STEEL
0.81"
0.44"
16
0.5"
14.5 °
NB16B-1/2
16
1"
0.5"
1.125"
STEEL
0.81"
0.44"
16
0.5"
14.5 °
NB18B
18
1.125"
0.5"
1.25"
STEEL
0.94"
0.44"
16
0.5"
14.5 °
NB18B-1/2
18
1.125"
0.5"
1.25"
STEEL
0.94"
0.44"
16
0.5"
14.5 °
NB20B
20
1.25"
0.5"
1.375"
STEEL
0.96"
0.44"
16
0.5"
14.5 °
NB20B-1/2
20
1.25"
0.5"
1.375"
STEEL
0.96"
0.44"
16
0.5"
14.5 °
NB22B
22
1.375"
0.5"
1.5"
STEEL
1.08"
0.44"
16
0.5"
14.5 °
NB22B-1/2
22
1.375"
0.5"
1.5"
STEEL
1.08"
0.44"
16
0.5"
14.5 °
NB24B
24
1.5"
0.5"
1.625"
STEEL
1.2"
0.44"
16
0.5"
14.5 °
NB24B-1/2
24
1.5"
0.5"
1.625"
STEEL
1.2"
0.44"
16
0.5"
14.5 °
NB26B
26
1.625"
0.5"
1.75"
STEEL
1.33"
0.44"
16
0.5"
14.5 °
NB26B-1/2
26
1.625"
0.5"
1.75"
STEEL
1.33"
0.44"
16
0.5"
14.5 °
NB28B
28
1.75"
0.5"
1.875"
STEEL
1.45"
0.5"
16
0.5"
14.5 °
NB28B-1/2
28
1.75"
0.5"
1.875"
STEEL
1.45"
0.5"
16
0.5"
14.5 °
NB30B
30
1.875"
0.5"
2"
STEEL
1.58"
0.5"
16
0.5"
14.5 °
NB30B-1/2
30
1.875"
0.5"
2"
STEEL
1.58"
0.5"
16
0.5"
14.5 °
NB32
32
2"
0.5"
2.125"
STEEL
1.7"
0.5"
16
0.5"
14.5 °
NB32-1/2
32
2"
0.5"
2.125"
STEEL
1.7"
0.5"
16
0.5"
14.5 °
NB36
36
2.25"
0.5"
2.375"
STEEL
1.95"
0.5"
16
0.5"
14.5 °
NB40A
40
2.5"
0.5"
2.625"
STEEL
1.69"
0.5"
16
0.5"
14.5 °
NB48A
48
3"
0.5"
3.125"
STEEL
2.19"
0.5"
16
0.5"
14.5 °
NB54
54
3.375"
0.5"
3.5"
CAST IRON
1.25"
0.5"
16
0.5"
14.5 °
NB56
56
3.5"
0.5"
3.625"
CAST IRON
1.25"
0.5"
16
0.5"
14.5 °
NB60
60
3.75"
0.5"
3.875"
CAST IRON
1.38"
0.62"
16
0.5"
14.5 °
ND11B
11
1"
0.5"
1.167"
STEEL
0.75"
0.5"
12
0.75"
14.5 °
ND11B-1/2
11
1"
0.5"
1.167"
STEEL
0.75"
0.5"
12
0.75"
14.5 °
ND12B
12
1"
0.5"
1.167"
STEEL
0.75"
0.5"
12
0.75"
14.5 °
ND12B-1/2
12
1"
0.5"
1.167"
STEEL
0.75"
0.5"
12
0.75"
14.5 °
ND13B
13
1.083"
0.5"
1.25"
STEEL
0.83"
0.5"
12
0.75"
14.5 °
ND13B-1/2
13
1.083"
0.5"
1.25"
STEEL
0.83"
0.5"
12
0.75"
14.5 °
ND14B
14
1.167"
0.5"
1.334"
STEEL
0.92"
0.5"
12
0.75"
14.5 °
ND14B-1/2
14
1.167"
0.5"
1.334"
STEEL
0.92"
0.5"
12
0.75"
14.5 °
QB40
40
2.5"
0.5"
2.625"
NON-METALLIC
-
-
16
0.5"
14.5 °
QB48
48
3"
0.5"
3.125"
NON-METALLIC
-
-
16
0.5"
14.5 °
QB64
64
4"
0.5"
4.125"
NON-METALLIC
-
-
16
0.5"
14.5 °
QBH24
24
1.5"
0.5"
1.625"
NON-METALLIC
1.31"
0.5"
16
0.5"
14.5 °
