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UNIT
MOTOR DRIVE
Motor Pulley Pitch Diameter (mm)
Pulley Factory Setting
Full Turns Open
FAN DRIVE
Pulley Pitch Dia (mm)
Pulley Bore (mm)
Belt No. — Section
Belt Pitch (mm)
FAN SPEEDS (r/s)
Factory Setting
Range
Max Allowable Speed (r/s)
1
Change per
/
Turn of
2
Moveable Motor Pulley
Flange
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (mm)
UNIT
MOTOR DRIVE
Motor Pulley Pitch Diameter (mm)
Pulley Factory Setting
Full Turns Open
FAN DRIVE
Pulley Pitch Dia (mm)
Pulley Bore (mm)
Belt No. — Section
Belt Pitch (mm)
FAN SPEEDS (r/s)
Factory Setting
Range
Max Allowable Speed (r/s)
1
Change per
/
Turn of
2
Moveable Motor Pulley
Flange
MAX FULL TURNS FROM
CLOSED POSITION
SHAFTS CENTER DISTANCE (mm)
*
Values for 3 ---phase motor shown. For single ---phase motor, pulley pitch diameter is 178 mm and
resulting fan speed is 14.0 ---18.3 r/s.
†
It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 20 r/s.
** 575 ---v unit has a center distance of 233 ---279.
Table 9E - - Medium- -Static Drive Data, 60 Hz — SI
40RUA*08
40RUA*07
40RUQ*08
40RUQ*07
40RUS*08
86.4---
86.4---
111.8
111.8
2.5
224
25.4
25.4
1—A
1—A
1074
1024
12.7
14.0
11.1--- 14.4
12.2--- 15.8
20.0
20.0
0.328
0.360
5
265--- 313
265--- 313
Table 9F - - High- -Static Drive Data, 60 Hz — SI
40RUA*08
40RUA*07
40RUQ*08
40RUQ*07
40RUS*08
86.4--- 111.8
86.4--- 111.8
2.5
178
152*
25.4
25.4
1—A
1—A
1049
16.0
18.7
14.0--- 18.1
16.3--- 20.0*†
20.0
20.0
0.410
0.478
5
265--- 313
265--- 313
31
40RUA*12
40RUA*14
40RUQ*12
40RUS*14
40RUS*12
86.4---
86.4---
111.8
2.5
2.5
203
203
25.4
1—A
1024
14.0
12.2--- 15.8
11.9--- 15.4
20.0
0.360
5
5
265--- 313
265--- 313
40RUA*12
40RUA*14
40RUQ*12
40RUS*14
40RUS*12
86.4--- 111.8
94.0--- 119.4
2.5
2.5
152
25.4
1—A
947
947
18.7
16.3--- 20.0†
14.4--- 18.3
20.0
0.478
5
5
265--- 313
265--- 313**
40RUA*16
40RUQ*16
40RUS*16
94.0---
111.8
119.4
2.5
3.0
208
218
36.5
36.5
1—A
1—B
1049
1062
13.7
14.0
12.4--- 15.7
20.0
20.0
0.352
0.278
5
6
265--- 313
40RUA*16
40RUQ*16
40RUS*16
109.2--- 134.6
3.0
3.0
188
201
36.5
36.5
1—B
1—B
1011
1011
16.3
17.7
15.8--- 19.5
20.0
20.0
0.323
0.307
6
6
232--- 279
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