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