Related Resources: motors
NEMA Flange-Mounting Type D Footless Motors
Electric Motors, Generators and Drives
The following are dimensional size charts for standard electric motor NEMA standard Type D Flange Footless Motors
Standardized motor dimensions are established by the National Electrical Manufacturers Association (NEMA) - are tabulated below and apply to all base-mounted motors listed herein that carry a NEMA frame designation
Letter Symbols for Type D Flange Mounting Foot or Footless Motors
Dimensions for Type D Flange-Mounting Footless Motors
Frame Designation |
AJ |
AK |
BA |
BB* |
BC |
BD |
BE |
Num. |
Bolt |
Rec. |
U |
AH |
Keyseat |
AA |
||
R |
ES |
S |
||||||||||||||
143TD 145TD |
10.00 |
9.000 |
2.75 |
.250 |
0.00 |
11.00 |
0.50 |
4 |
0.53 |
1.25 |
0.8750 |
2.25 |
0.771 |
411. |
80.18 |
/43 |
182TD 184TD |
10.00 |
9.000 |
3.50 |
0.25 |
0.00 |
11.00 |
0.50 |
4 |
0.53 |
1.25 |
1.1250 |
2.75 |
0.986 |
1.78 |
0.250 |
3/4 |
213TD 215TD |
10.00 |
9.000 |
4.25 |
0.25 |
0.00 |
11.00 |
0.50 |
4 |
0.53 |
1.25 |
1.3750 |
3.38 |
1.201 |
2.41 |
0.312 |
1 |
254TD 256TD |
12.50 |
11.000 |
4.75 |
0.25 |
0.00 |
14.00 |
0.75 |
4 |
0.81 |
2.00 |
1.625 |
4.00 |
1.416 |
2.91 |
0.375 |
1-1/4 |
284TD 286TD |
12.50 |
11.000 |
4.75 |
0.25 |
0.00 |
14.00 |
0.75 |
4 |
0.81 |
2.00 |
1.875 |
4.62 |
1.591 |
3.28 |
0.500 |
1-1/2 |
284TSD 286TSD |
12.50 |
11.000 |
4.75 |
0.25 |
0.00 |
14.00 |
0.75 |
4 |
0.81 |
2.00 |
1.625 |
3.25 |
1.416 |
1.91 |
0.375 |
1-1/2 |
324TD 326TD |
16.00 |
14.000 |
5.25 |
0.25 |
0.00 |
18.00 |
0.75 |
4 |
0.81 |
2.00 |
2.125 |
5.25 |
1.845 |
3.91 |
0.500 |
2 |
324TSD 326TSD |
16.00 |
14.000 |
5.25 |
0.25 |
0.00 |
18.00 |
0.75 |
4 |
0.81 |
2.00 |
1.875 |
3.75 |
1.591 |
2.03 |
0.500 |
2 |
364TD 365TD |
16.00 |
14.000 |
5.88 |
0.25 |
0.00 |
18.00 |
0.75 |
4 |
0.81 |
2.00 |
2.375 |
5.88 |
2.021 |
4.28 |
0.625 |
3 |
364TSD 365TSD |
16.00 |
14.000 |
5.88 |
0.25 |
0.00 |
18.00 |
0.75 |
4 |
0.81 |
2.00 |
1.875 |
3.75 |
1.591 |
2.03 |
0.500 |
3 |
404TD 405TD |
20.00 |
18.000 |
6.62 |
0.25 |
0.00 |
22.00 |
1.00 |
8 |
0.81 |
2.25 |
2.875 |
7.25 |
2.450 |
5.65 |
0.750 |
3 |
404TSD 405TSD |
20.00 |
18.000 |
6.62 |
0.25 |
0.00 |
22.00 |
1.00 |
8 |
0.81 |
2.25 |
2.125 |
4.25 |
1.845 |
2.78 |
0.500 |
3 |
444TD 445TD |
20.00 |
18.000 |
7.50 |
0.25 |
0.00 |
22.00 |
1.00 |
8 |
0.81 |
2.25 |
3.375 |
8.50 |
2.880 |
6.91 |
0.875 |
3 |
444TSD 445TSD |
20.00 |
18.000 |
7.50 |
0.25 |
0.00 |
22.00 |
1.00 |
8 |
0.81 |
2.25 |
2.375 |
4.75 |
2.021 |
3.03 |
0.625 |
3 |
447TD 449TD |
20.00 |
18.000 |
7.50 |
0.25 |
0.00 |
22.00 |
1.00 |
8 |
0.81 |
2.25 |
3.375 |
8.50 |
2.880 |
6.91 |
0.875 |
3 |
447TSD 449TSD |
20.000 |
18.000 |
7.50 |
0.25 |
0.00 |
22.00 |
1.00 |
8 |
0.81 |
2.25 |
2.375 |
4.75 |
2.021 |
3.03 |
0.625 |
3 |
500 |
22.000 |
18.000 |
... |
0.25 |
0.00 |
25.00 |
1.00 |
8 |
0.81 |
... |
... |
... |
... |
... |
... |
... |
All dimensions in inches.
*Tolerance is +0.00 inch, -0.06 inch.
† For dimensions of clearance holes see 4.8.
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