78
Table 23 —
Airfoil Fan Drive Centerline Distances in Inches (cont)
39M UNIT
SIZE
FAN
MODEL
NO.
MOTOR
SIZE
BHF/BHR
DBF/DBR
THF/THR
UBF/UBR
FAN SHAFT DIAM. (in.)
MIN
MAX
MIN
MAX
MIN
MAX
MIN
MAX
CLASS 1
CLASS 2
42T
AF 271
182T
42.3
44.2
33.6
35.7
38.5
40.7
36.7
38.5
2
3
/
16
2
7
/
16
184T
42.3
44.2
33.6
35.7
38.5
40.7
36.7
38.5
213T
41.9
43.8
33.2
35.4
38.2
40.4
36.2
38.1
215T
41.9
43.8
33.2
35.4
38.2
40.4
36.2
38.1
254T
41.3
43.3
32.8
34.9
37.8
40.1
35.6
37.6
256T
41.3
43.3
32.8
34.9
37.8
40.1
35.6
37.6
284T
40.9
43.0
32.4
34.7
37.5
39.8
35.2
37.2
286T
40.9
43.0
32.4
34.7
37.5
39.8
35.2
37.2
324T
40.4
42.5
32.0
34.3
37.2
39.5
34.7
36.7
326T
40.4
42.5
32.0
34.3
37.2
39.5
34.7
36.7
AF 301
182T
45.4
47.4
34.3
36.5
41.4
43.7
39.9
41.9
2
7
/
16
1
15
/
16
184T
45.4
47.4
34.3
36.5
41.4
43.7
39.9
41.9
213T
45.0
47.0
34.0
36.2
41.1
43.4
39.4
41.4
215T
45.0
47.0
34.0
36.2
41.1
43.4
39.4
41.4
254T
44.4
46.5
33.6
35.9
40.7
43.0
38.8
40.8
256T
44.4
46.5
33.6
35.9
40.7
43.0
38.8
40.8
284T
44.0
46.1
33.3
35.6
40.4
42.7
38.4
40.4
286T
44.0
46.1
33.3
35.6
40.4
42.7
38.4
40.4
324T
43.5
45.6
33.0
35.3
40.0
42.4
37.8
39.9
326T
43.5
45.6
33.0
35.3
40.0
42.4
37.8
39.9
50W
AF 301
213T
32.9
34.5
24.5
27.0
27.0
29.1
32.1
33.8
2
7
/
16
1
15
/
16
215T
32.9
34.5
24.5
27.0
27.0
29.1
32.1
33.8
254T
32.1
33.8
24.0
26.4
26.3
28.5
31.3
33.0
256T
32.1
33.8
24.0
26.4
26.3
28.5
31.3
33.0
284T
31.5
33.2
23.6
26.1
25.8
28.1
30.7
32.4
286T
31.5
33.2
23.6
26.1
25.8
28.1
30.7
32.4
324T
30.7
32.5
23.0
25.6
25.2
27.5
29.9
31.8
326T
30.7
32.5
23.0
25.6
25.2
27.5
29.9
31.8
364T
30.4
31.8
22.5
25.2
24.6
27.0
29.2
31.1
AF 331
184T
34.8
36.0
N/A
N/A
27.3
29.0
33.9
35.1
2
7
/
16
2
3
/
16
213T
34.1
35.3
N/A
N/A
26.7
28.4
33.3
34.5
215T
34.1
35.3
N/A
N/A
26.7
28.4
33.3
34.5
254T
33.2
34.5
N/A
N/A
25.9
27.7
32.4
33.7
256T
33.2
34.5
N/A
N/A
25.9
27.7
32.4
33.7
51T
AF 301
213T
46.8
48.8
35.8
38.1
43.1
45.3
41.1
43.0
2
7
/
16
1
15
/
16
215T
46.8
48.8
35.8
38.1
43.1
45.3
41.1
43.0
254T
46.3
48.3
35.5
37.8
42.7
44.9
40.5
42.4
256T
46.3
48.3
35.5
37.8
42.7
44.9
40.5
42.4
284T
45.9
47.9
35.2
37.5
42.4
44.6
40.1
42.0
286T
45.9
47.9
35.2
37.5
42.4
44.6
40.1
42.0
324T
45.4
47.4
34.9
37.2
42.0
44.3
39.5
41.5
326T
45.4
47.4
34.9
37.2
42.0
44.3
39.5
41.5
364T
44.9
47.0
34.6
36.9
41.7
44.0
39.0
41.0
365T
44.9
47.0
34.6
36.9
41.7
44.0
39.0
41.0
AF 331
182T
54.1
56.1
42.4
44.6
49.8
52.0
48.4
50.3
2
7
/
16
2
3
/
16
184T
54.1
56.1
42.4
44.6
49.8
52.0
48.4
50.3
213T
53.7
55.7
42.1
44.4
49.5
51.8
47.9
49.8
215T
53.7
55.7
42.1
44.4
49.5
51.8
47.9
49.8
254T
53.1
55.2
41.7
44.0
49.1
51.4
47.4
49.3
256T
53.1
55.2
41.7
44.0
49.1
51.4
47.4
49.3
284T
52.7
54.8
41.5
43.8
48.9
51.1
47.0
48.9
286T
52.7
54.8
41.5
43.8
48.9
51.1
47.0
48.9
324T
52.2
54.3
41.1
43.5
48.4
50.8
46.4
48.4
326T
52.2
54.3
41.1
43.5
48.4
50.8
46.4
48.4
