Owner's manual
28
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-108 - Belt Drive
Series 100
Wheel Diameter = 11
1
⁄8 (283)
Shaft Diameter = 3/4 (19)
Outlet Area = 0.76 ft
2
(0.07 m
2
)
^Approximate Unit Weight = 135 lb. (61 kg)
All dimensions in inches (millimeters)
For additional discharge positions see page 13
^Weight shown is largest cataloged Open Drip Proof motor
26
5
⁄8
(676)
12 (305)
16
7
⁄8 (429)
1
1
⁄2
(38)
11
1
⁄2
(292)
15
1
⁄8
(384)
11
1
⁄4
(286)
18
3
⁄4
(476)
22
1
⁄4
(565)
16 (406)
21
7
⁄8 (556)
23
1
⁄2 (597)
15
1
⁄2
(394)
9
3
⁄4
(248)
11
(279)
8
5
⁄8
(219)
2
(51)
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
200 263
RPM 860 1148
BHP 0.02 0.04
Sones 5.5 6.8
300 395
RPM 982 1235 1443 1635 1805
BHP 0.03 0.05 0.09 0.12 0.16
Sones 6.6 7.0 7.7 8.7 9.6
400 526
RPM 1141 1357 1551 1719 1872 2025 2165 2296 2419
BHP 0.04 0.07 0.11 0.15 0.19 0.24 0.29 0.34 0.40
Sones 7.2 7.7 8.2 9.0 9.8 10.7 11.5 12.4 13.5
500 658
RPM 1317 1506 1675 1837 1983 2117 2241 2364 2487 2603
BHP 0.07 0.10 0.14 0.18 0.23 0.28 0.33 0.39 0.45 0.51
Sones 8.0 8.6 9.2 9.8 10.5 11.1 12.0 12.9 13.9 14.8
600 789
RPM 1504 1673 1825 1965 2105 2234 2356 2471 2579 2681
BHP 0.09 0.14 0.18 0.22 0.27 0.32 0.38 0.44 0.50 0.57
Sones 9.1 9.8 10.5 11.2 11.8 12.3 13.0 13.7 14.6 15.5
700 921
RPM 1699 1849 1989 2119 2242 2361 2478 2589 2695 2796
BHP 0.13 0.18 0.23 0.28 0.33 0.39 0.44 0.50 0.56 0.63
Sones 10.3 11.5 12.5 12.9 13.3 13.9 14.6 14.8 15.7 16.6
800 1053
RPM 1899 2035 2162 2282 2396 2507 2610 2715
BHP 0.18 0.23 0.29 0.34 0.40 0.46 0.52 0.59
Sones 12.1 13.3 13.9 14.5 15.0 15.6 16.2 17.0
900 1184
RPM 2102 2227 2344 2455 2561 2662 2763
BHP 0.24 0.30 0.37 0.43 0.49 0.54 0.61
Sones 13.9 14.7 15.5 16.2 16.8 17.4 18.1
1000 1316
RPM 2308 2423 2531 2634 2733
BHP 0.32 0.38 0.45 0.53 0.59
Sones 15.6 16.6 17.4 18.2 18.9
1100 1447
RPM 2517 2623 2723
BHP 0.41 0.48 0.55
Sones 18.7 18.7 19.7
1200 1579
RPM 2728
BHP 0.52
Sones 23
Static Pressure (in. wg)
Volume (cfm x 100)
Volume (m
3
/hr x 100)
Static Pressure (Pa x 100)
0 2 4 6 8 10121416182022
0
1
2
3
4
5
6
7
8
9
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
02468101214
0.0
0.5
1.0
1.5
2.0
2.5
3.0
3.5
4.0
670 670
1100 1100
1525 1525
1950 1950
2375 2375
2800 2800
¾ ¾
½ ½
¼ ¼
RPM
HP
Density 0.075 lb/ft
3
3
Maximum BHP at a given RPM = (RPM/3233)
3
(Maximum KW at a given RPM = (RPM/3564)
3
)
Maximum RPM = 2800
Tip Speed (ft/min.) = RPM x 2.91
(Tip Speed (m/s) = RPM x 0.0148)
Maximum Motor Frame Size = 145T
SWB-108