32
www.aosmithmotors.com
3-3/8” Diameter Stock Motors
Open Ventilated Fan & Blower Duty
Features:
• Continuous Duty, Air Over
• Shaded Pole & PSC
OEM replacement for Nutone, Broan, Fedders, McQuay, Bohn, Witt Coil,
American Standard, Miami Carey, Duotherm, Coleman, Phil Rich, Chrysler and others
993 (Singer)
9633 (Krack),
9634 (Krack)
9625 (Carrier),
9626 (Carrier)
396
(Fedders, Kramer Trenton)
398
42, 43
948, 980
9720A (Heatcraft)
990 (Reznor), 991 (Reznor)
342 (McQuay)
(Special 3.15 B.C.D.)
574 (Larkin),
575 (Larkin)
30, 31, 534, 535
572A, 573A
(Bohn)
Stock
Shaft Diameter
“A”
HP
RPM Speeds Volts
Amps
Number
& Length
Rotation
Dim.
Notes
1⁄25
1550
1
115
1.6
30
5⁄16 x 2-1⁄2
CWSE
2-5/8
1⁄25
1550
1
115
1.9
31
5⁄16 x 2-1⁄2
CCWSE
2-5/8
1⁄25~1⁄30~1⁄40 1550
3
115 1.8-1.3-1.0
534
5⁄16 x 2-1⁄2
CWSE
3
2
1⁄25~1⁄30~1⁄40 1550
3
115 1.8-1.3-1.0
535
5⁄16 x 2-1⁄2
CCWSE
3
2
1⁄25
3000
1
230
.67
980
1⁄4 x 2-1⁄4
CWSE
3
1⁄20
1550
1
115
1.9
572A
5⁄16 x 3
CWSE
3
3,4
1⁄20
1550
1
115
1.6
574
5⁄16 x 2-1⁄2
CCWSE
2-3⁄4
3,4,150
1⁄20
1450
1
208-230
1.1
396
5⁄16 x 2-1⁄2
CWSE
3-1/4
3,4
1⁄20
1450
1
208-230
1.1
398
5⁄16 x 2-1⁄2
CCWSE
3-1/8
1⁄20
1550
1
208-230
.90
575
5⁄16 x 2-1⁄2
CCWSE
2-3⁄4
3,4,150
1/16
3450
1
208-230
0.48
9626
5/16 x 3-1/4
CCWSE
4-7/8 2,3,68,239,327
1/16
3450
1
460
0.25
9625
5/16 x 3-1/4
CCWSE
4-7/8 2,3,68,150,239,327
1⁄15
1550
1
115
2.2
42
5⁄16 x 2-1⁄2
CWSE
3-1/8
1⁄15
1550
1
115
2.3
43
5⁄16 x 2-1⁄2
CCWSE
3-1/8
1⁄15
1630
1
115
2.1
9631
5⁄16 x 1-1/2
CWSE
3-5/8
3,4,150
1⁄15
1640
1
115
0.7
9633
5⁄16 x 1-1/2
CWSE
3-5/8 3,4,68,150
1⁄15
1550
1
115/230 1.9/.90
342
5⁄16 x 2-1/2
CWSE
3-3⁄4
3,200
1⁄15
1550
1
208-230
1.2
9632
5⁄16 x 1-1/2
CWSE
3-5/8
3,4,150
1⁄15
1550
1
208-230
1.3
573A
5⁄16 x 3
CWSE
3-5/8
3,4
1⁄15
1640
1
208-230
0.3
9634
5⁄16 x 1-1/2
CWSE
3-5/8 3,4,68,150
1⁄15
3000
1
230
1.2
948
1⁄4 x 2-1⁄4
CWSE
3
150
1/12
1550
1
208-230
0.5
9720A
5/16 x 2-5/8
CCWSE
3-5/8 3,4,68,150
1⁄10
1550
1
230
1.0
993
5⁄16 x 3-3⁄4
REV
4-7⁄8
3,68,239
1⁄10
3200
1
115
1.5
991
5⁄16 x 3-1⁄4
REV
4-1⁄4 2,3,68,239
1⁄10
3200
1
208-230
0.63
990
5⁄16 x 3-1⁄4
REV
4-3⁄8 2,3,68,239
Notes:
  2. Ball bearings
  3. Special OEM replacement motor (See Pages 94-137)   
  4. Supplied with lead & plug assembly    
 68. PSC motor   
150. Rated 50/60 HZ
200. Has special 3.15” bolt circle  
239. Capacitor attached
327. Carrier Sensor Assembly (50HJ 401 484) not included
9631 (Krack),
9632 (Krack)
A
1
2
12
1
2
3
3
8
2
27
32
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