BCF-103 - page 16

22-1/4
24-1/2
27
30
33
36-1/2
40-1/4
44-1/2
49
24-1/4
26-7/16
29-1/8
32-3/8
35-9/16
39-3/8
43-7/16
48
52-7/8
2-3/16
2-3/16
2-7/16
2-7/16
2-15/16
2-15/16
3-7/16
3-11/16
3-15/16
1/2 x 1/4
1/2 x 1/4
5/8 x 5/16
5/8 x 5/16
3/4 x 3/8
3/4 x 3/8
7/8 x 7/16
7/8 x 7/16
1 x 1/2
21-7/8
24
26-1/2
29-1/8
32
35-21/32
39-9/32
43-13/32
47-29/32
19
21-3/4
23-7/8
26-13/16
29-7/32
32-3/32
35-5/32
38-21/32
42-13/32
18-1/4
19-1/2
22
23-1/2
25
27-1/2
30-1/4
33
36-1/4
22-11/16
25-3/4
28-1/4
31-11/16
34-3/8
38
41-11/16
45-7/8
50-3/8
24-1/4
26-3/4
30-1/8
31-3/8
33-1/4
35-1/4
38-3/4
42-1/4
46-1/2
33-1/4
35-3/4
39-7/16
42-5/8
46
50-1/4
55-1/4
61
67-1/4
24-9/16
27-9/16
30-9/16
33-9/16
36-9/16
41-9/16
44-9/16
49-9/16
53-5/8
37
40-1/4
43-3/4
47-3/4
51-3/8
51-5/8
57-3/8
61-1/8
69-3/8
21-1/8
24-5/16
26-9/16
29-3/8
32-1/16
35-1/8
38-7/16
42-3/16
46-1/4
20
22-1/4
24-3/8
27-5/16
29-3/4
32-5/8
35-11/16
39-3/16
42-15/16
25-1/8
27-3/4
30-3/8
34-5/16
37-1/2
41-3/16
45-1/8
49-9/16
54-3/8
23-1/4
26-1/4
28-3/4
32-3/16
35-1/8
38-1/2
42-1/4
46-3/8
50-7/8
20
22-3/8
24-7/32
25-5/16
27
29-1/8
31-5/8
34-1/2
38-1/8
26-5/8
28-1/2
31-3/16
34-13/16
38
41-21/32
45-19/32
50-3/32
54-29/32
19
22-3/8
24-7/32
25-5/16
27-1/8
29-11/16
32-7/16
35-5/8
39
6
7
8
8
8
8
8
8
10
Fan
Size
E
H
Wheel
Dia.
Shaft at
Bearings Keyway A
B
BH,BAU
UB,TAU
TH
D
TAD
only
F
G
TAU TH
BAU UB
BH
TAD DB
L
K
22-1/4
24-1/2
27
30
33
36-1/2
40-1/4
44-1/2
49
RF
182-184
213-215
254-256
284
182-184
213-215
254-256
284-286
213-215
254-256
284-286
324-326
254-256
284-286
324-326
364-365
254-256
284-286
324-326
284-286
324-326
364-365
404-405
284-286
324-326
364-365
404-405
324-326
364-365
404-405
444-445
RF
24-3/4
24-1/4
23-3/4
23-3/8
27-7/8
27-1/4
26-1/2
26
30-7/8
30-1/8
29-1/2
29
33-5/8
33
32-3/8
31-5/8
36-7/8
36-1/4
35-3/8
40-3/4
39-7/8
39-1/8
38-1/4
46
45
44-1/8
43-3/8
50-3/8
49-1/2
48-1/2
47-3/4
RF
24-1/4
23-3/4
23-1/8
22-3/4
27-1/8
26-5/8
25-7/8
25-3/8
30-1/2
29-5/8
29-1/8
28-1/2
33-1/8
32-1/2
32
31-1/4
36-1/2
35-7/8
35-1/8
40-3/8
39-1/2
38-3/4
38
45-1/2
44-1/2
43-3/4
42-7/8
50
49
48-1/8
47-3/8
RF
23
22-1/2
22
21-5/8
25-3/4
25-1/4
24-5/8
24-1/8
28-3/4
28
27-1/2
26-7/8
31-1/4
30-5/8
30-1/8
29-1/2
34-1/4
33-5/8
33
38
37-1/4
36-3/8
35-3/4
42-7/8
42
41-1/8
40-3/8
47-1/8
46-1/8
45-1/4
44-1/2
RF
21-1/2
21
20-1/2
NA
24
23-1/2
23
22-1/2
26-1/2
25-3/4
25-1/4
24-7/8
28-7/8
28-1/4
27-3/4
27-1/4
31-1/2
31
30-3/8
34-7/8
34-1/8
33-3/8
32-3/4
39-1/2
38-5/8
37-7/8
37-1/8
43-3/8
42-1/2
41-1/2
41
RF
19-7/8
19-1/2
NA
NA
22-3/8
21-7/8
21-3/8
NA
24-7/8
24-1/4
23-3/4
23-3/8
27
26-1/2
26
NA
29-1/2
29
28-3/8
32-3/4
32
31-1/4
30-3/4
37-1/8
36-3/8
35-1/2
34-7/8
40-3/4
39-7/8
39
38-3/8
RF
20
19-1/2
NA
NA
22-1/4
21-3/4
21-1/4
NA
23-1/4
22-5/8
22-1/4
NA
25
24-1/2
24-1/8
NA
27-3/8
26-3/4
26-1/4
30-1/4
29-1/2
28-7/8
NA
34-3/8
32-5/8
32-7/8
32-1/4
37-3/4
36-7/8
36-1/8
35-1/2
RF
20
19-1/2
NA
NA
22-1/4
21-1/4
21-1/4
NA
23-1/4
22-5/8
22-1/4
NA
25
24-1/2
24
NA
28-1/4
27-5/8
26-7/8
29-5/8
29
28-1/4
NA
33-1/2
32-3/4
32
31-3/8
37-1/8
36-1/4
35-1/2
34-7/8
22-1/4
24-1/2
27
30
33
36-1/2
40-1/4
44-1/2
49
22-3/4
24-1/16
25-3/8
28
30-1/4
29-5/8
34-3/8
35-7/8
40-1/8
19-5/8
21-9/16
23-3/4
26-1/2
29-1/8
32
35-1/4
38-15/16
42-7/8
2-1/2
2-1/2
2-1/2
2-1/2
2-1/2
3
3
3
3
11-3/16
12-5/32
13-1/4
14-5/8
15-15/16
17-3/4
19-3/8
21-7/32
23-3/16
14-9/16
14-27/32
15-1/4
17-1/4
17-13/16
19-5/8
24
24-11/32
25-9/16
12-5/8
13-7/8
15-23/32
17-5/16
19
20-5/8
23-1/8
26
29-1/8
16-5/8
18-5/8
20-5/8
22-5/8
25-5/8
24-1/4
26-1/4
29-1/4
34-1/4
15-1/2
16-3/4
18-19/32
20-3/16
21-7/8
23-7/8
26-1/2
29-1/4
32-3/8
3-3/16
4-5/32
3-1/4
2-5/8
3-15/16
3-3/4
3-3/8
3-7/32
3-3/16
1-3/4
2
2-3/16
2-23/32
3-1/64
3
3-5/16
3-11/16
4
20-9/16
23-7/16
26-1/16
28-7/8
31-3/8
34-5/8
37-15/16
41-11/16
45-3/4
24
24
30
32
32
38
40
46
48
17-1/4
19-13/16
21-11/16
24-7/16
26-5/8
29-3/16
31-15/16
35-1/8
38-1/2
4
4
5
6
6
7
8
9
10
4
4
6
6
6
8
8
10
10
24-1/8
27-9/16
29-7/8
33-13/16
36-13/16
40-21/32
44-9/16
49-1/16
53-7/8
4-5/16
5-5/16
2-9/16
3-7/8
5-5/16
3-1/2
5-5/16
3-3/8
5-5/8
12-5/8
13-7/8
15-23/32
17-5/16
19
20-5/8
23-1/8
26
29-1/8
22-1/4
24-1/4
27-5/8
28-11/16
30-3/4
32-7/8
36-1/8
39-3/4
43-7/8
3.0
5.2
6.3
6.3
6.5
8.0
8.5
9.4
10.2
Fan
Size
U
BB
M N P Q R
BH,BAU
UB,TAU
TH,TAD
S
T
DB
only W
AA
DB
only
BH,BAU
UB,TAU
TH,TAD
Y
DB
only
Z
DB
only
X
DB
only
DB
only CC
FF
Min.
Fan
Sheave
Dia.
DD
Positions of
Discharge
and
Rotation
as Viewed
From the
Drive Side
Arrangement 1 Shown
- All Dimensions in Inches. DoNot Use for ConstructionUnless Certified.
FOUNDATIONPLAN
SIDEELEVATION (DriveSide)
BottomHorizontal CCWRotation
FRONTELEVATION
FOUNDATIONPLAN
DownBlast Discharge
7HOLES –
5/8Dia. Sizes 22-1/4 to 33
7/8Dia. Sizes 36-1/2 to 49
5HOLES –
5/8Dia. Sizes 22-1/4 to 33
7/8Dia. Sizes 36-1/2 to 49
AA
1/2Dia.Holes
AroundDischarge
Motor
Frame
Fan
Size
BAU
UB TAU TH TAD DB
Arrangement 9 -
MeanDrive Centers for Frames Shown
BH
RF =Refer to Factory
NA =Not Available
16
CLASS IV
- Arrangements 1 and 9
CHICAGOBLOWER
BACKWARD INCLINEDFAN
F/2 F/2
F/2
A B
W
H
D
F/2
F/2 F/2
A
B
W
D
H
G*
*
OPTIONAL
SLIP INLET
1...,6,7,8,9,10,11,12,13,14,15 17,18,19,20
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