Simple, Robust Design with Adjustable Input Shaft Height
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Viking offers three sizes of offset helical gear reducers to reduce standard driver speeds to match pump (or other driven equipment) requirements. Adjustment slots on the mounting brackets allow the reducers input (high speed) shaft height to swivel to adapt to a variety of motor frames, while the output (slow speed) shaft height corresponds
to typical Viking Pump shaft heights.
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| Ratios |
1.87:1 to 7.95:1 |
1.87:1 to 7.95:1 |
| Output Speed |
780 - 180 (50Hz, 4 pole) |
950 - 220 (60Hz, 4 pole) |
| Power |
1.3 - 33.8 kW |
2.2 - 49.8 HP |
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Specifications
| 60 Hz Motor Speeds |
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Size
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Number of Ratios
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Ratio Range
|
1750 RPM
|
1150 RPM
|
|
HP Range
|
Output RPM Range
|
HP Range
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Output RPM Range
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|
A
|
4
|
2.24:1 to 4.17:1
|
6.1 - 3.1
|
780 - 420
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4.3 - 2.2
|
520 - 280
|
|
B
|
8
|
1.87:1 to 7.65:1
|
19.0 - 6.4
|
950 - 230
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16.5 - 4.4
|
640 - 155
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|
C
|
7
|
2.21:1 to 7.95:1
|
49.8 - 18.0
|
780 - 220
|
40.1 - 12.6
|
520 - 145
|
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| 50 Hz Motor Speeds |
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Size
|
Number of Ratios
|
Ratio Range
|
1450 RPM
|
950 RPM
|
|
kW Range
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Output RPM Range
|
kW Range
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Output RPM Range
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A
|
4
|
2.24:1 to 4.17:1
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3.9 - 2.0
|
640 - 350
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2.7 - 1.3
|
420 - 230
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B
|
8
|
1.87:1 to 7.65:1
|
12.9 - 4.0
|
780 - 190
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11.6 - 2.8
|
520 - 125
|
|
C
|
7
|
2.21:1 to 7.95:1
|
33.8 - 11.3
|
640 - 180
|
21.7 - 7.8
|
420 - 120
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