48
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 sound power level ratings shown are in decibels, referred to 10-12 watts, calculated per AMCA Standard 301. Values shown
are for inlet LwiA sound power levels and inlet hemispherical sone levels for installation type B: Free inlet, Ducted outlet, calculated per AMCA Standard 301. The AMCA
Certified Ratings Seal applies to air performance only.
SWB-327 - Belt Drive
Series 300
SWB-327
Wheel Diameter = 27
(686)
Shaft Diameter = 1
11
⁄
16
(43)
Outlet Area = 4.19 ft
2
(0.389 m
2
)
^Approximate Unit Weight = 917 lb.
(417 kg)
All dimensions in inches
(millimeters)
For additional discharge positions see page 13
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood
61
3
⁄
4
(1568)
28
1
⁄
2
(724)
35
3
⁄
4
(908)
3
1
⁄
2
(89)
28
3
⁄
4
(730)
33
(838)
28
5
⁄
8
(727)
46
1
⁄
4
(1175)
50
7
⁄
8
(1292)
33
(838)
48
1
⁄
4
(1226)
52
7
⁄
16
(
1332)
30
(762)
21
7
⁄
16
(545)
32
(813)
21
1
⁄
4
(540)
4
3
⁄
16
(106)
Maximum BHP at a given RPM = (RPM/629)
3
(Maximum KW at a given RPM = (RPM/693)
3
)
Maximum RPM = 1425
Tip Speed (ft/min.) = RPM x 7.07
(Tip Speed (m/s) = RPM x 0.0359)
Maximum Motor Frame Size = 256T
CFM
OV
Static Pressure in Inches wg
0.5
1
1.5
2
2.5
3
3.5
4
4.5
5
5000
1193
RPM
551
663
756
841
BHP
0.66
1.10
1.57
2.08
Sones / LwiA
10.3 / 72
11.8 / 75
13.2 / 77
14.9 / 79
5900
1408
RPM
604
712
800
878
953
1022
BHP
0.89
1.40
1.92
2.48
3.07
3.69
Sones / LwiA
11.5 / 74
12.9 / 76
14.1 / 78
15.6 / 79
17.6 / 81
19.6 / 83
6800
1622
RPM
666
764
849
923
991
1058
1120
1179
1234
BHP
1.17
1.75
2.34
2.95
3.59
4.26
4.96
5.67
6.40
Sones / LwiA
12.9 / 76
14 / 77
15.2 / 79
16.6 / 80
18.2 / 82
19.9 / 83
22 / 85
24 / 86
26 / 88
7700
1837
RPM
731
815
900
971
1037
1098
1157
1215
1270
1322
BHP
1.53
2.17
2.83
3.50
4.19
4.91
5.65
6.43
7.22
8.02
Sones / LwiA
14.5 / 78
15.2 / 79
16.6 / 80
18.1 / 81
19.4 / 83
21 / 84
22 / 85
24 / 86
26 / 88
28 / 89
8600
2052
RPM
801
872
951
1022
1085
1145
1201
1253
1307
1358
BHP
1.97
2.65
3.40
4.14
4.88
5.66
6.45
7.26
8.11
8.97
Sones / LwiA
16.3 / 80
17 / 80
18.3 / 81
19.7 / 83
21 / 84
22 / 85
24 / 86
25 / 87
27 / 88
29 / 89
9500
2267
RPM
871
934
1003
1074
1136
1194
1248
1299
1348
1395
BHP
2.51
3.23
4.03
4.86
5.67
6.50
7.35
8.21
9.10
10.0
Sones / LwiA
18.5 / 82
19.2 / 82
20 / 83
21 / 84
23 / 85
25 / 87
26 / 88
28 / 89
29 / 89
30 / 90
10400 2482
RPM
942
997
1059
1125
1188
1244
1297
1347
1395
BHP
3.14
3.90
4.76
5.66
6.56
7.45
8.35
9.27
10.2
Sones / LwiA
21 / 84
22 / 84
22 / 85
24 / 86
26 / 87
27 / 88
29 / 89
31 / 90
32 / 91
11300 2696
RPM
1014
1066
1121
1177
1239
1296
1348
1397
BHP
3.89
4.70
5.59
6.55
7.53
8.51
9.47
10.5
Sones / LwiA
24 / 86
24 / 86
25 / 87
27 / 88
28 / 89
31 / 90
32 / 91
33 / 91
12200 2911
RPM
1086
1135
1184
1236
1291
1347
1400
BHP
4.74
5.62
6.54
7.55
8.60
9.66
10.7
Sones / LwiA
27 / 88
28 / 88
29 / 89
30 / 90
32 / 91
34 / 92
35 / 92
13100 3126
RPM
1160
1205
1249
1298
1345
1399
BHP
5.72
6.67
7.62
8.68
9.78
10.9
Sones / LwiA
30 / 90
32 / 91
33 / 91
35 / 92
36 / 93
37 / 93
14000 3341
RPM
1233
1276
1317
1361
1407
BHP
6.83
7.85
8.87
9.94
11.1
Sones / LwiA
35 / 92
37 / 93
38 / 94
39 / 94
40 / 94
Static Pr
essur
e (in. wg)
Volume (cfm X 1000)
Volume (m
3
/hr x 1000)
Static Pr
essur
e (Pa x 100)
D
o
no
t
se
le
c
t
to
t
h
e
l
e
ft
o
f
th
is
s
y
s
te
m
c
u
rv
e
0
5
10
15
20
25
30
0
2
4
6
8
10
12
14
16
0
2
4
6
8
10
12
14
16
18
0
1
2
3
4
5
6
7
571
571
629
629
720
720
792
792
907
907
1076
1076
1231
1231
1355
1355
1425
1425
15
15
10
10
7½
7½
5 5
3
3
2
2
1½
1½
1
1
¾
¾
RPM
HP
Density 0.075 lb/ft
3
