Table 9E — Medium-Static Drive Data, 60 Hz — SI
UNIT | 40RUA*25 | 40RUA*28 | 40RUA*30 | |
40RUS*25 | 40RUS*28 | 40RUS830 | ||
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MOTOR DRIVE |
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Motor Pulley Pitch Diameter (mm) | 109.2- | 109.2- | 109.2- | |
134.6 | 134.6 | 134.6 | ||
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Pulley Factory Setting | 3.0 | 3.0 | 3.0 | |
Full Turns Open | ||||
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FAN DRIVE |
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Pulley Pitch Dia (mm) | 239 | 239 | 239 | |
Pulley Bore (mm) | 36.5 | 49.2 | 49.2 | |
Belt No. — Section | ||||
Belt Pitch (mm) | 1062 | (2) 986 | (2) 986 | |
(2) 1011 | (2) 1011 | |||
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FAN SPEEDS (r/s) |
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Factory Setting | 14.7 | 14.7 | 14.7 | |
Range | ||||
Max Allowable Speed (r/s) | 20.0 | 18.3 | 18.3 | |
Change per 1/2 Turn of | 0.255 | 0.255 | 0.255 | |
Moveable Motor Pulley | ||||
Flange |
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MAX FULL TURNS FROM | 6 | 6 | 6 | |
CLOSED POSITION | ||||
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SHAFTS CENTER DISTANCE (mm) |
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†Four belts shipped with unit. Use correct set of 2 belts sized according to the pully setting.
Table 9F — High-Static Drive Data, 60 Hz — SI
UNIT | 40RUA*25 | 40RUA*28 | 40RUA*30 | |
40RUS*25 | 40RUS*28 | 40RUS*30 | ||
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MOTOR DRIVE |
|
|
| |
Motor Pulley Pitch Diameter (mm) | 109.2- | 109.2- | 109.2- | |
134.6 | 134.6 | 134.6 | ||
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Pulley Factory Setting | 3.0 | 3.0 | 3.0 | |
Full Turns Open | ||||
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FAN DRIVE |
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Pulley Pitch Dia (mm) | 188 | 203† | 203 | |
Pulley Bore (mm) | 36.5 | 49.2 | 49.2 | |
Belt No. — Section | ||||
Belt Pitch (mm) | 935 | 935 | 960 | |
FAN SPEEDS (r/s) |
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Factory Setting | 18.6 | 17.1 | 17.1 | |
Range | 16.9- | 14.6- | 14.6- | |
20.0† | 17.9 | 17.9 | ||
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Max Allowable Speed (r/s) | 20.0 | 18.3 | 18.3 | |
Change per 1/2 Turn of | 0.323 | 0.278 | 0.278 | |
Moveable Motor Pulley | ||||
Flange |
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MAX FULL TURNS FROM | 6 | 6 | 6 | |
CLOSED POSITION | ||||
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SHAFTS CENTER DISTANCE (mm) |
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†It is possible to adjust drive so that fan speed exceeds maximum allowable. DO NOT exceed 20 r/s.
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