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Performance certified is for installation Type B - Free inlet, Ducted outlet. Power rating (Bhp) does not include transmission losses. Performance ratings do not include the
effects of appurtenances (accessories). The AMCA Certified Ratings Seal applies to air performance only.
SWB-120 - Belt Drive
Series 100
46
(1168)
19
3
⁄8 (492)
27
3
⁄8 (695)
1
1
⁄2
(38)
21
1
⁄2
(546)
24
1
⁄2
(622)
21
1
⁄8
(537)
33
5
⁄8
(854)
36
1
⁄8
(918)
25
5
⁄8 (651)
35 (889)
37 (940)
23
3
⁄4
(603)
15
3
⁄8
(391)
21
1
⁄8
(537)
14
7
⁄8
(378)
2
(51)
Wheel Diameter = 21
3
⁄8 (543)
Shaft Diameter = 1 (25)
Outlet Area = 2.23 ft
2
(0.21 m
2
)
^Approximate Unit Weight = 374 lb. (170 kg)
All dimensions in inches (millimeters)
For additional discharge positions see page 13
^Weight shown is largest cataloged Open Drip Proof motor
CFM OV
Static Pressure in Inches wg
0.25 0.5 0.75 1 1.25 1.5 1.75 2 2.25 2.5
1800 807
RPM 471 591
BHP 0.12 0.22
Sones 6.5 6.5
2250 1009
RPM 528 633 728 811
BHP 0.17 0.29 0.42 0.56
Sones 6.6 6.7 8.0 9.4
2700 1211
RPM 593 686 770 850 923 989
BHP 0.25 0.38 0.52 0.68 0.84 1.01
Sones 7.1 7.3 8.1 9.5 11.2 12.3
3150 1413
RPM 658 743 820 892 962 1028 1088 1145
BHP 0.34 0.49 0.64 0.81 0.99 1.18 1.37 1.57
Sones 7.9 8.3 9.1 10.2 11.2 12.4 13.5 14.6
3600 1614
RPM 723 807 877 943 1006 1068 1128 1184 1237 1287
BHP 0.45 0.62 0.79 0.98 1.17 1.37 1.58 1.80 2.02 2.24
Sones 9.0 10.0 10.9 11.6 12.4 13.0 13.7 14.9 16.4 18.0
4050 1816
RPM 791 873 937 999 1057 1113 1169 1223 1276 1326
BHP 0.59 0.79 0.97 1.17 1.38 1.59 1.82 2.05 2.29 2.53
Sones 10.7 12.3 13.0 13.4 14.3 15.0 15.1 15.5 16.6 18.2
4500 2018
RPM 861 937 1001 1057 1113 1166 1217 1267 1316
BHP 0.75 0.98 1.19 1.40 1.62 1.85 2.09 2.33 2.58
Sones 13.1 14.4 15.1 15.3 16.2 16.5 16.4 16.7 17.8
4950 2220
RPM 931 1002 1067 1121 1171 1222 1270 1316
BHP 0.94 1.20 1.45 1.67 1.90 2.15 2.40 2.65
Sones 15.9 15.9 16.8 17.4 17.2 17.0 17.2 18.1
5400 2422
RPM 1003 1069 1132 1186 1234 1280 1327
BHP 1.16 1.45 1.73 1.98 2.23 2.48 2.75
Sones 17.6 17.8 18.5 18.5 18.1 18.0 18.7
5850 2623
RPM 1076 1137 1196 1252 1298 1342
BHP 1.42 1.74 2.04 2.34 2.60 2.87
Sones 19.3 19.8 19.3 19.3 19.7 20
6300 2825
RPM 1151 1207 1262 1316
BHP 1.73 2.06 2.40 2.71
Sones 21 21 20 21
Static Pressure (in. wg)
Volume (cfm X 1000)
Volume (m
3
/hr x 1000)
Static Pressure (Pa x 100)
D
o
n
o
t
s
e
l
e
c
t
t
o
t
h
e
l
e
f
t
o
f
t
h
i
s
s
y
s
t
e
m
c
u
r
v
e
0 2 4 6 8 10 12
0
1
2
3
4
5
6
7
8
0 1 2 3 4 5 6 7 8
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
471 471
645 645
820 820
995 995
1170 1170
1357 1357
3 3
2 2
1½ 1½
1 1
¾ ¾
½ ½
SWB-120
RPM
HP
Density 0.075 lb/ft
3
3
Maximum BHP at a given RPM = (RPM/943)
3
(Maximum KW at a given RPM = (RPM/1040)
3
)
Maximum RPM = 1357
Tip Speed (ft/min.) = RPM x 5.23
(Tip Speed (m/s) = RPM x 0.0266)
Maximum Motor Frame Size = 215T
SWB-120