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General Purpose IHP Motor Dimensions
Single and Three Phase 143T-449T Frame • Dripproof • Totally Enclosed • Explosion-Proof
For Reference Only Unless
Approved for Construction
NEMA
Frame
Keyway
BA
D
1
E
2F
H
N
U
2
V
3
143T
3⁄16 x 3⁄32
2.25
3.50
2.75
4.00
11⁄32
2.31
.875
2.00
145T
3⁄16 x 3⁄32
2.25
3.50
2.75
5.00
11⁄32
2.31
.875
2.00
182T
1⁄4 x 1⁄8
2.75
4.50
3.75
4.50
13⁄32
2.81
1.125
2.50
184T
1⁄4 x 1⁄8
2.75
4.50
3.75
5.50
13⁄32
2.81
1.125
2.50
213T
5⁄16 x 5⁄32
3.50
5.25
4.25
5.50
13⁄32
3.50
1.375
3.13
215T
5⁄16 x 5⁄32
3.50
5.25
4.25
7.00
13⁄32
3.50
1.375
3.13
254T
3⁄8 x 3⁄16
4.25
6.25
5.00
8.25
17⁄32
4.25
1.625
3.75
256T
3⁄8 x 3⁄16
4.25
6.25
5.00
10.00
17⁄32
4.25
1.625
3.75
284T
1⁄2 x 1⁄4
4.75
7.00
5.50
9.50
17⁄32
4.88
1.875
4.38
284TS
3⁄8 x 3⁄16
4.75
7.00
5.50
9.50
17⁄32
3.50
1.625
3.00
286T
1⁄2 x 1⁄4
4.75
7.00
5.50
11.00
17⁄32
4.88
1.875
4.38
286TS
3⁄8 x 3⁄16
4.75
7.00
5.50
11.00
17⁄32
3.50
1.625
3.00
324T
1⁄2 x 1⁄4
5.25
8.00
6.25
10.50
21⁄32
5.50
2.125
5.00
324TS
1⁄2 x 1⁄4
5.25
8.00
6.25
10.50
21⁄32
4.00
1.875
3.50
326T
1⁄2 x 1⁄4
5.25
8.00
6.25
12.00
21⁄32
5.50
2.125
5.00
326TS
1⁄2 x 1⁄4
5.25
8.00
6.25
12.00
21⁄32
4.00
1.875
3.50
364T
5⁄8 x 5⁄16
5.88
9.00
7.00
11.25
21⁄32
6.13
2.375
5.63
364TS
1⁄2 x 1⁄4
5.88
9.00
7.00
11.25
21⁄32
4.00
1.875
3.50
365T
5⁄8 x 5⁄16
5.88
9.00
7.00
12.25
21⁄32
6.13
2.375
5.63
365TS
1⁄2 x 1⁄4
5.88
9.00
7.00
12.25
21⁄32
4.00
1.875
3.50
404T
3⁄4 x 3⁄8
6.63
10.00
8.00
12.25
13⁄16
7.50
2.875
7.00
404TS
1⁄2 x 1⁄4
6.63
10.00
8.00
12.25
13⁄16
4.50
2.125
4.00
405T
3⁄4 x 3⁄8
6.63
10.00
8.00
13.75
13⁄16
7.50
2.875
7.00
405TS
1⁄2 x 1⁄4
6.63
10.00
8.00
13.75
13⁄16
4.50
2.125
4.00
444T
7⁄8 x 7⁄16
7.50
11.00
9.00
14.50
13⁄16
8.87
3.375
8.25
444TS
5⁄8 x 5⁄16
7.50
11.00
9.00
14.50
13⁄16
5.12
2.375
4.50
445T
7⁄8 x 7⁄16
7.50
11.00
9.00
16.50
13⁄16
8.87
3.375
8.25
445TS
5⁄8 x 5⁄16
7.50
11.00
9.00
16.50
13⁄16
5.12
2.375
4.50
445TZ
1 x 1⁄2
5
7.50
11.00
9.00
16.50
13⁄16
11.25
3.875 10.625
447T
7⁄8 x 7⁄16
4
7.50
11.00
9.00
20.00
13⁄16
8.87
3.875
8.25
447TS
5⁄8 x 5⁄16
4
7.50
11.00
9.00
20.00
13⁄16
5.12
2.375
4.50
447TZ
1 x 1⁄2
5
7.50
11.00
9.00
20.00
13⁄16
11.25
3.875 10.625
449T
7⁄8 x 7⁄16
4
7.50
11.00
9.00
25.00
13⁄16
8.87
3.375
8.25
449TS
5⁄8 x 5⁄16
4
7.50
11.00
9.00
25.00
13⁄16
5.12
2.375
4.50
449TZ
1 x 1⁄2
5
7.50
11.00
9.00
25.00
13⁄16
11.25
3.875 10.625
Notes:
1
Dimension “D” tolerance: - 8” or less, +.000, -.031; over 8”, +.000-.062
2
Dimension “U” tolerance: - 11⁄2” dia. or less, +.0000, -.0005; over 11⁄2” dia., +.000, -.001
3
Dimension “V” is usable length of shaft
4
Suitable for horizontal mounting only. Refer to company for belting applications.
5
Crusher-duty motors Spec 80546
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