Available in clockwise and counter clockwise rotation viewing air discharge.
All pitches between 10 and 40 degrees are standard.
Hub positioned either intake or discharge.
Fan diameters 18" through 22" are standard with 2 set screws.
Available with aluminum or galvalume blades.
All fans are trued and balanced.
Special hubs, bores and keyways can be furnished at extra cost.
Consult our Engineering Department for special applications.
Dimensional Information
Catalog Number
Fan Dia.
Pitch
Dimensions
Max RPM
Standard Bores
Weight
No. Blades
W
B Int
B Dis
OA1802-10
18
10
2.52
1.77
0.81
1140
0.38; 0.50
1.12
2
OA1802-20
18
20
3.7
2.33
1.47
1140
0.38, 0.50
1.12
2
OA1802-30
18
30
4.82
2.83
2.07
1140
0.38, 0.50
1.12
2
OA1802-40
18
40
5.8
3.25
2.63
1140
0.38, 0.50
1.12
2
OA1803-10
18
10
2.52
1.77
0.81
1140
0.38, 0.50
1.46
3
OA1803-20
18
20
3.7
2.33
1.47
1140
0.38, 0.50
1.46
3
OA1803-30
18
30
4.82
2.83
2.07
1140
0.38, 0.50
1.46
3
OA1803-40
18
40
5.8
3.25
2.63
1140
0.38, 0.50
1.46
3
OA1804-10
18
10
2.52
1.77
0.81
1140
0.38, 0.50
1.75
4
OA1804-20
18
20
3.7
2.33
1.47
1140
0.38, 0.50
1.75
4
OA1804-30
18
30
4.82
2.83
2.07
1140
0.38, 0.50
1.75
4
OA1804-40
18
40
5.8
3.25
2.63
1140
0.38, 0.50
1.75
4
OA2002-10
20
10
2.52
1.77
0.81
1140
0.38, 0.50
1.22
2
OA2002-20
20
20
3.7
2.33
1.47
1140
0.38, 0.50
1.22
2
OA2002-30
20
30
4.82
2.83
2.07
1140
0.38, 0.50
1.22
2
OA2002-40
20
40
5.8
3.25
2.63
1140
0.38, 0.50
1.22
2
OA2003-10
20
10
2.52
1.77
0.81
1140
0.38, 0.50
1.55
3
OA2003-20
20
20
2.7
2.33
1.47
1140
0.38, 0.50
1.55
3
OA2003-30
20
30
4.82
2.83
2.07
1140
0.38, 0.50
1.55
3
OA2003-40
20
40
5.8
3.25
2.63
1140
0.38, 0.50
1.55
3
OA2004-10
20
10
2.52
1.77
0.81
1140
0.38, 0.50
1.87
4
OA2004-20
20
20
3.7
2.33
1.47
1140
0.38, 0.50
1.87
4
OA2004-30
20
30
4.82
2.83
2.07
1140
0.38, 0.50
1.87
4
OA2004-40
20
40
5.8
3.25
2.63
1140
0.38, 0.50
1.87
4
OA2202-10
22
10
2.52
1.77
0.81
1140
0.50; 0.63
1.28
2
OA2202-20
22
20
3.7
2.33
1.47
1140
0.50; 0.63
1.28
2
OA2202-30
22
30
4.82
2.83
2.07
1140
0.50; 0.63
1.28
2
OA2202-40
22
40
5.8
3.25
2.63
1140
0.50; 0.63
1.28
2
OA2203-10
22
10
2.52
1.77
0.81
1140
0.50; 0.63
1.64
3
OA2203-20
22
20
3.7
2.33
1.47
1140
0.50; 0.63
1.64
3
OA2203-30
22
30
4.82
2.83
2.07
1140
0.50; 0.63
1.64
3
OA2203-40
22
40
5.8
3.25
2.63
1140
0.50; 0.63
1.64
3
OA2204-10
22
10
2.52
1.77
0.81
1140
0.50; 0.63
1.99
4
OA2204-20
22
20
3.7
2.33
1.47
1140
0.50; 0.63
1.99
4
OA2204-30
22
30
4.82
2.83
2.07
1140
0.50; 0.63
1.99
4
OA2204-40
22
40
5.8
3.25
2.63
1140
0.50; 0.63
1.99
4
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