Baldor NEMA QUICK REFERENCE CHART

C*

V

U

H = Hole

P

AB

O

D

V

C*

AH (56-184)
AH (213-449)

AK

BD

U

2F

BA

H = Hole

NAMEPLATE

O

D

P

AB

45˚

45˚

XO

TAP

4 HOLES

THERMAL

(WHEN REQ'D)

AA = CONDUIT SIZE

E

E

SINGLE PHASE

ONLY

REMOVABLE
DRIP COVER

(OPTIONAL)

BB

AJ

NEMA Keyseat NEMA Keyseat
Shaft Dimensions Shaft Dimensions

(U) (R) (S) (U) (R) (S)

3/8 21/64 FLAT 1-7/8 1-19/32 1/2

Leader in Energy Efficient

Leader in Energy Efficient

Industrial Electric Motors and Drives

Industrial Electric Motors and Drives

1/2 29/64 FLAT 2-1/8 1-27/32 1/2
5/8 33/64 3/16 2-3/8 2-1/64 5/8
7/8 49/64 3/16 2-1/2 2-3/16 5/8
1-1/8 63/64 1/4 2-7/8 2-29/64 3/4
1-3/8 1-13/64 5/16 3-3/8 2-7/8 7/8
1-5/8 1-13/32 3/8 3-7/8 3-5/16 1

Drawings represent standard TEFC general purpose motors

Refer Data Section 502 for various models, OPEN or TEFC

*Dimensions are for reference only.

*Contact your local Baldor office for “C” Dimensions. Dimensions - N, O, P, AB and XO are specific to Baldor.

NEMA QUICK REFERENCE CHART

NEMA

FRAME

Both Baldor and Reliance products are shown in this catalog. There are slight differences in dimensions between the two product designs, primarily in the O and P dimensions.
The above chart refl ects Baldor dimensions. For more exact dimensional data, lease check the specifi c drawing for the specifi c catalog number.

FRAME

5007S
5007L

5009S
5009L

5011S
5011L

D E 2F H N O P U V AA AB AH AJ AK BA BB BD XO TAP

42 2-5/8 1-3/4 1-11/16

48 3 2-1/8 2-3/4

56

3-1/2 2-7/16

56H

143T

3-1/2 2-3/4

145T

182
184

4-1/2 3-3/4

182T
184T

213
215

5-1/4 4-1/4

213T
215T

254U
256U

6-1/4 5

254T
256T

284U
286U

284T

7 5-1/2

286T

284TS
286TS

324U

326U

324T

8 6-1/4

326T

324TS
326TS

364U

365U

364T

9 7

365T

364TS
365TS

404U

405U

404T

10 8

405T

404TS
405TS

444U

445U

444T

445T

447T

11 9

449T

444TS
445TS
447TS
449TS

5000

D E 2F H O P U V AA AB BA

12-1/2
12-1/210102222

12-1/2
12-1/210102828

12-1/2
12-1/210103636

9/32

1-1/2 5 4-11/16 3/8 1-1/8 3/8 4-1/32 1-5/16 3-3/4 3 2-1/16 1/8 4-5/8 1-9/16 1/4-20

SLOT

11/32

1-7/8 5-7/8 5-11/16 1/2 1-1/2 1/2 4-3/8 1-11/16 3-3/4 3 2-1/2 1/8 5-5/8 2-1/4 1/4-20

SLOT

3511/32

4

5

4-1/2
5-1/2

4-1/2
5-1/2

5-1/2

7

5-1/2

7

8-1/4

10

8-1/4

10

9-1/2

11

9-1/2

11

9-1/2

11

10-1/2

12

10-1/2

12

10-1/2

12

11-1/4
12-1/4

11-1/4
12-1/4

11-1/4
12-1/4

12-1/4
13-3/4

12-1/4
13-3/4

12-1/4
13-3/4

14-1/2
16-1/2

14-1/2
16-1/2

20

25

14-1/2
16-1/2

20

25

15/16
15/16

15/16
15/16

15/16
15/16

2-7/16

SLOT

11/32 2-1/2 6-7/8 6-5/8 7/8 2-1/4 3/4 5-1/4 2-1/8 5-7/8 4-1/2 2-1/4 1/8 6-1/2 2-1/4 3/8-16

13/32

13/32

17/32

17/32

21/32

21/32

13/16

13/16

26-27/32
26-27/323030

26-27/32
26-27/323030

26-27/32
26-27/323030

6-7/8 6-5/8 5/8 1-7/8 1/2 5 2-1/16 5-7/8 4-1/2 2-3/4 1/8 6-1/2 2-1/4 3/8-16

2-1/8

2-11/16
2-11/16

3-9/16
3-9/16

4-1/16
4-1/16

4-5/16
4-5/16

3-15/16
3-15/16

7-3/16
7-3/16

7-5/16
7-5/16

8-15/16
8-15/16

5-3/16

5-3/16
4-15/16
4-15/16

3-1/2
3-1/2

3-7/8
3-7/8

5-1/8
5-1/8

4-7/8
4-7/8

3-3/8
3-3/8

5-7/8
5-7/8

5-1/2
5-1/2

6-3/4
6-3/4

6-1/4
6-1/4

4-1/2
4-1/2

8-5/8
8-5/8

8-1/2
8-1/2

4
4

8-11/16 7-7/8

10-1/4 9-9/16

12-7/8 12-15/16

14-5/8 14-5/8

16-1/2 16-1/2

18-1/2 18-1/4

20-5/16 20-1/8

22-7/8
22-7/8

22-7/8

22-7/8
22-15/16
22-15/16

22-7/8

22-7/8
22-15/16
22-15/16

2-1/2
3-7/8

2-1/2
3-7/8

2-1/2
3-7/8

22-3/8
22-3/8

22-3/8
22-3/8
23-3/4
23-3/4

22-3/8
22-3/8
23-3/4
23-3/4

6-1/2

11-1/8

6-1/2

11-1/8

6-1/2

11-1/8

7/8

7/8

1-1/8
1-1/8

1-1/8
1-1/8

1-3/8
1-3/8

1-3/8
1-3/8

1-5/8
1-5/8

1-5/8
1-5/8

1-7/8
1-7/8

1-5/8
1-5/8

1-7/8
1-7/8

2-1/8
2-1/8

1-7/8
1-7/8

2-1/8
2-1/8

2-3/8
2-3/8

1-7/8
1-7/8

2-3/8
2-3/8

2-7/8
2-7/8

2-1/8
2-1/8

2-7/8
2-7/8

3-3/8
3-3/8
3-3/8
3-3/8

2-3/8
2-3/8
2-3/8
2-3/8

4-NPT
4-NPT

4-NPT
4-NPT

4-NPT
4-NPT

2-1/4
2-1/4

2-3/4
2-3/4

3

3

3-3/8
3-3/8

3-3/4
3-3/4

4

4

4-7/8
4-7/8

4-5/8
4-5/8

3-1/4
3-1/4

5-5/8
5-5/8

5-1/4
5-1/4

3-3/4
3-3/4

6-3/8
6-3/8

5-7/8
5-7/8

3-3/4
3-3/4

7-1/8
7-1/8

7-1/4
7-1/4

4-1/4
4-1/4

8-5/8
8-5/8

8-1/2
8-1/2
8-1/2
8-1/2

4-3/4
4-3/4
4-3/4
4-3/4

26-7/8
26-7/8

26-7/8
26-7/8

26-7/8
26-7/8

2-1/8

19-9/16
19-9/16

19-9/16

19-9/16
21-11/16
21-11/16

19-9/16

19-9/16
21-11/16
21-11/16

2-1/8

2-5/8
2-5/8

2-3/4
2-3/4

3-1/8
3-1/8

3-1/2
3-1/2

3-3/4
3-3/4

4-5/8
4-5/8

4-3/8
4-3/8

5-3/8
5-3/8

3-1/2
3-1/2

6-1/8
6-1/8

5-5/8
5-5/8

3-1/2
3-1/2

6-7/8
6-7/8

8-3/8
8-3/8

8-1/4
8-1/4
8-1/4
8-1/4

4-1/2
4-1/2
4-1/2
4-1/2

3/4 5-7/8

3/4 7-3/8

1 9-5/8

1-1/2 13-1/8

2 14-1/8

2-1/2 15-1/16

3 18

3

4NPT
4NPT

NEMA C-Face BA Dimensions

143-5TC 2-3/4

8-1/2
8-1/2

8-1/2
8-1/2

8-1/2
8-1/2

182-4TC 3-1/2

213-5TC 4-1/4

254-6TC 4-3/4

BALDOR ELECTRIC COMPANY

P.O. BOX 2400

FORT SMITH, ARKANSAS

72902-2400 U.S.A.

5-7/8

4-1/2

5-7/8

4-1/2

7-1/4

8-1/2

7-1/4

8-1/2

7-1/4 8-1/2 3-1/2 1/4 9 2-3/4 1/2-13

7-1/4 8-1/2 4-1/4 1/4 10 — 1/2-13

9 10-1/2 4-3/4 1/4 11-1/4 — 1/2-13

3
3

5

11 12-1/2 5-1/4 1/4 13-3/8 — 5/8-11

5

11 12-1/2 5-7/8 1/4 13-3/8 — 5/8-11

7

11 12-1/2 6-5/8 1/4 13-7/8 — 5/8-11

7

4
4

14 16 7-1/2 1/4 16-3/4 — 5/8-11

1/8
1/8

2-3/4

1/4
1/4

Frame

D E F N U V BA

66 4-1/8 2-15/16 2-1/2 2-1/4 3/4 2-1/4 3-1/8

203

5 4

204 3-1/4
224

5-1/2 4-1/2

225 3-3/4
254 6-1/4 5 4-1/8 3-7/16 1-1/8 3-3/8 4-1/4
284 7 5-1/2 4-3/4 4-1/4 1-1/4 3-3/4 4-3/4
324

8 6-1/4

326 6
364

9 7

365 6-1/8
404

10 8

405 6-7/8
444

11 9

445 8-1/4
504

12-1/2 10

505 9

6-1/2
6-1/2

2-3/8

9
9

NEMA FRAMES PRIOR TO 1953

2-3/4

2-7/16 3/4 2 3-1/8

3-3/8

3-1/4 1 3 3-1/2

5-1/4

5-3/8 1-5/8 4-7/8 5-1/4

5-5/8

5-5/8 1-78/8 5-3/8 5-7/8

6-1/8

6-3/8 2-1/8 6-1/8 6-5/8

7-1/4

7-1/8 2-3/8 6-7/8 7-1/2

8

8-5/8 2-7/8 8-3/8 8-1/2

3/8-16
3/8-16

1/2-13
1/2-13