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Wheel Diameter = 9
1
⁄2 (241)
Shaft Diameter = 3/4 (19)
Outlet Area = 0.454 ft
2
(0.042 m
2
)
^Approximate Unit Weight = 120 lb. (54 kg)
All dimensions in inches (millimeters)
For additional discharge positions see page 12
^Weight shown is largest cataloged Open Drip Proof motor
SFB-9 - Belt Drive
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
360 792
RPM 644
BHP 0.03
Sones 6.3
460 1013
RPM 681 891
BHP 0.05 0.08
Sones 6.8 11.0
560 1233
RPM 728 930 1090 1225
BHP 0.07 0.11 0.15 0.19
Sones 7.5 10.8 10.1 10.3
660 1453
RPM 780 966 1129 1264 1382
BHP 0.09 0.14 0.18 0.23 0.28
Sones 8.5 10.7 10.3 10.6 11.0
760 1674
RPM 838 1013 1166 1303 1422 1528 1628
BHP 0.13 0.18 0.23 0.28 0.34 0.39 0.44
Sones 9.8 10.6 10.7 11.0 11.8 13.2 14.5
860 1894
RPM 909 1064 1207 1340 1461 1568 1667 1758 1845
BHP 0.17 0.23 0.28 0.34 0.40 0.46 0.52 0.58 0.64
Sones 11.1 10.9 11.1 11.4 12.6 14.0 15.4 17.0 18.6
960 2114
RPM 983 1118 1256 1378 1498 1608 1706 1798 1883 1965
BHP 0.23 0.28 0.34 0.40 0.47 0.54 0.61 0.68 0.75 0.82
Sones 11.1 11.5 11.8 12.1 13.4 14.9 16.4 18.0 19.7 21
1060 2334
RPM 1059 1174 1306 1426 1534 1644 1745 1837 1923
BHP 0.30 0.35 0.42 0.49 0.55 0.63 0.71 0.78 0.86
Sones 12.0 12.2 12.6 13.2 14.3 15.8 17.5 19.1 21
1260 2775
RPM 1216 1318 1417 1528 1631 1728 1818 1911 1999
BHP 0.48 0.54 0.61 0.69 0.77 0.84 0.92 1.01 1.10
Sones 14.2 14.3 14.6 15.7 16.8 18.1 19.5 21 23
1360 2995
RPM 1297 1392 1482 1583 1682 1777 1866 1949
BHP 0.59 0.66 0.72 0.81 0.89 0.98 1.06 1.14
Sones 15.7 15.7 16.1 17.0 18.1 19.5 21 22
1460 3215
RPM 1378 1468 1554 1639 1736 1827 1915 1998
BHP 0.71 0.79 0.86 0.94 1.03 1.13 1.22 1.31
Sones 17.3 17.2 17.6 18.3 19.6 21 22 24
19
7
⁄8
(505)
15
1
⁄2
(394)
6
5
⁄8
(168)
2
(51)
10
(254)
11
5
⁄16
(287)
20 (508)
10
1
⁄8
(257)
1
5
⁄8
(41)
14
1
⁄4 (362)
13
3
⁄4
(349)
24
(610)
10
1
⁄4
(260)
8
(203)
16
7
⁄8
(429)
13
1
⁄2 (343)
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cfm
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.
Maximum BHP at given RPM = (RPM/1747)
3
(Maximum KW at a given RPM = (RPM/1926)
3
)
Maximum RPM = 2000 and Minimum RPM = 450
Tip Speed (ft/min.) = RPM x 2.49
(Tip Speed (m/s) = RPM x 0.0126)
Maximum Motor Frame Size = 145T
SFB-9