Dimension
inches
|
NEMA Motor
Mounting Dimensions
|
NEMA 17
|
NEMA 23
|
NEMA 34
|
NEMA 42
|
Motor Shaft Diameter
|
.1968
|
.250
|
.375
|
.625
|
Motor Shaft Length*
|
.945
|
.81
|
1.25
|
1.380
|
Pilot Diameter
|
.866
|
1.500
|
2.875
|
2.186
|
Pilot Length*
|
.080
|
.062
|
.062
|
.062
|
Mounting Bolt Circle
|
1.725
|
2.625
|
3.875
|
4.950
|
Bolt Hole Size
|
4-40 UNC
|
.195
|
.218
|
.281
|
Bolt Hole Distance (square)
|
1.220
|
1.856
|
2.740
|
3.500
|
* Dimensions can be
less than indicated
|