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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 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- -
Series
54
SWB-336 - Belt Drive
Series 300
Wheel Diameter = 36
1
⁄2 (927)
Shaft Diameter = 2
3
⁄16 (56)
Outlet Area = 7.66 ft
2
(0.712 m
2
)
^Approximate Unit Weight = 1530 lb. (695 kg)
All dimensions in inches (millimeters)
For additional discharge positions see page 13
^Weight shown includes largest cataloged Open Drip Proof motor and weatherhood
82
3
⁄4
(2102)
31
7
⁄8 (810)
45
5
⁄16 (1151)
3
1
⁄2
(89)
38
1
⁄4
(972)
44
1
⁄2
(1130)
38
11
⁄16
(983)
61
(1549)
67
1
⁄8
(1705)
41
1
⁄2 (1054)
59
1
⁄8 (1502)
63
5
⁄16 (1608)
33
3
⁄8
(848)
28
15
⁄16
(735)
42
(1067)
27
1
⁄4
(692)
4
3
⁄16
(106)
Maximum BHP at a given RPM = (RPM/376)
3
(Maximum KW at a given RPM = (RPM/415)
3
)
Maximum RPM = 1051
Tip Speed (ft/min.) = RPM x 9.56
(Tip Speed (m/s) = RPM x 0.0486)
Maximum Motor Frame Size = 286T
CFM OV
Static Pressure in Inches wg
0.5 1 1.5 2 2.5 3 3.5 4 4.5 5
7500 979
RPM 362 454 532 606
BHP 0.86 1.54 2.33 3.24
Sones / LwiA 10.7 / 71 10.8 / 73 12.9 / 76 16.1 / 79
9500 1240
RPM 405 490 561 625 685 745
BHP 1.25 2.06 2.94 3.90 4.95 6.09
Sones / LwiA 11.9 / 73 12.6 / 75 14.1 / 77 15.9 / 79 18.7 / 82 22 / 84
11500 1501
RPM 456 531 597 656 712 764 813 863 911
BHP 1.77 2.74 3.73 4.76 5.91 7.09 8.34 9.70 11.1
Sones / LwiA 13.7 / 76 14.6 / 78 16.1 / 79 17.8 / 81 19.3 / 82 21 / 83 23 / 85 26 / 87 30 / 89
13500 1762
RPM 513 575 638 694 745 794 841 885 926 970
BHP 2.46 3.56 4.72 5.87 7.07 8.35 9.70 11.1 12.5 14.1
Sones / LwiA 16.2 / 79 17.1 / 80 18.7 / 81 20 / 83 21 / 84 22 / 85 24 / 86 25 / 87 28 / 88 31 / 90
15500 2023
RPM 572 623 680 734 784 830 873 915 957 996
BHP 3.35 4.54 5.89 7.20 8.52 9.88 11.3 12.8 14.3 15.9
Sones / LwiA 19.1 / 82 19.9 / 82 21 / 84 22 / 85 24 / 85 25 / 86 26 / 87 27 / 88 29 / 89 31 / 90
17500 2284
RPM 631 680 727 777 825 869 911 951 988 1026
BHP 4.45 5.80 7.21 8.75 10.2 11.7 13.2 14.8 16.4 18.0
Sones / LwiA 22 / 85 23 / 85 24 / 86 25 / 86 27 / 87 28 / 88 29 / 89 31 / 90 32 / 90 33 / 91
19500 2545
RPM 692 738 778 823 867 910 951 989 1026
BHP 5.79 7.30 8.80 10.4 12.2 13.8 15.4 17.1 18.8
Sones / LwiA 26 / 87 27 / 87 27 / 88 28 / 88 30 / 89 31 / 90 33 / 91 34 / 91 35 / 92
21500 2806
RPM 754 796 835 870 913 953 992 1030
BHP 7.41 9.07 10.7 12.4 14.3 16.2 18.0 19.8
Sones / LwiA 29 / 89 30 / 90 31 / 90 32 / 90 33 / 91 35 / 92 37 / 92 38 / 93
23500 3067
RPM 817 855 892 926 959 999 1035
BHP 9.33 11.1 13.0 14.8 16.6 18.7 20.8
Sones / LwiA 33 / 91 34 / 92 35 / 92 37 / 92 38 / 93 40 / 94 41 / 94
25500 3328
RPM 881 916 951 983 1014 1045
BHP 11.6 13.5 15.5 17.4 19.4 21.5
Sones / LwiA 38 / 93 39 / 94 40 / 94 42 / 95 43 / 95 44 / 95
27500 3590
RPM 944 976 1010 1041
BHP 14.2 16.3 18.4 20.5
Sones / LwiA 43 / 96 45 / 96 46 / 96 47 / 96
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 10 20 30 40 50
0
2
4
6
8
10
12
14
16
0 5 10 15 20 25 30 35
0
1
2
3
4
5
6
7
376 376
430 430
474 474
542 542
643 643
736 736
810 810
927 927
1051 1051
25 25
20 20
15 15
10 10
7½ 7½
5 5
3 3
2 2
1
½
1½
1 1
SWB-336
RPM
HP
Density 0.075 lb/ft
3
SWB-336