Space Saving Compact Designs with Hundreds of Ratios to Choose From
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- Aluminum (Sizes 11 - 31)
- Cast Iron (Sizes 35 - 100)
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Viking offers eleven sizes of in-line, double reduction gear reducers to reduce standard driver speeds to match pump (or other driven equipment) requirements. With the in-line design, the input (high speed) shaft is on the same centerline as the output (slow speed) shaft. All sizes are available with solid input shaft, and sizes
11 through 60 are available with NEMA C-flange motor mount or IEC flange motor mount on the input side.
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| Ratios |
2.63:1 to 38.0:1 |
2.63:1 to 38.0:1 |
| Output Speed |
551 - 38 (50Hz, 4 pole) |
665 - 46 (60Hz, 4 pole) |
| Power |
0.37 - 261 kW |
0.5 - 350 HP |
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Specifications
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60 Hz Motor Speeds
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Size
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Number of Ratios
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Ratio Range
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1750 RPM
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1150 RPM
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HP Range
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Output RPM Range
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HP Range
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Output RPM Range
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11
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15
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2.77:1 to 22.9:1
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3.4 - 0.96
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632 - 76
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2.5 - 0.70
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415 - 50
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21
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15
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2.72:1 to 21.9:1
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7.7 - 2.4
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643 - 80
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5.7 - 1.5
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423 - 52
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31
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15
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2-88:1 to 22.6:1
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11.6 - 3.4
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608 - 77
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8.4 - 2.2
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399 - 57
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35
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14
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2.69:1 to 19.0:1
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16.2 - 5.2
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651 - 92
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11.4 - 3.2
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427 - 60
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41
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18
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2.69:1 to 31.4:1
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23.5 - 4.1
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651 - 56
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14.8 - 2.6
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427 - 37
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51
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18
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2.63:1 to 33.0:1
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39.8 - 6.2
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665 - 53
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25.0 - 3.9
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437 - 35
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|
61
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20
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2.82:1 to 38.0:1
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50.8 - 9.2
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621 - 46
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32.8 - 5.8
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408 - 30
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|
70
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16
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4.57:1 to 34.7:1
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95.3 - 15.7
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383 - 50
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63.5 - 9.8
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252 - 33
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80
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17
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5.64:1 to 31.3:1
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143 - 30.5
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310 - 56
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101 - 19.2
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204 - 37
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|
90
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19
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5.17:1 to 35.1:1
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217 - 39.8
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338 - 50
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153 - 25.0
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222 - 33
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100
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17
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4.92:1 to 29.6:1
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359 - 74.0
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356 - 59
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259 - 50.0
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234 - 39
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50 Hz Motor Speeds
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Size
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Number of Ratios
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Ratio Range
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1450 RPM
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950 RPM
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kW Range
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Output RPM Range
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kW Range
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Output RPM Range
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11
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15
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2.77:1 to 22.9:1
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2.2 - 0.62
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523 - 63
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1.4 - 0.39
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343 - 41
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21
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15
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2.72:1 to 21.9:1
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5.0 - 1.4
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533 - 66
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3.2 - 0.82
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349 - 43
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31
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15
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2-88:1 to 22.6:1
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7.4 - 2.1
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503 - 64
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4.7 - 1.2
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330 - 47
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35
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14
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2.69:1 to 19.0:1
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10.3 - 3.1
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539 - 76
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6.4 - 1.8
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353 - 50
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41
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18
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2.69:1 to 31.4:1
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14.2 - 2.5
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539 - 46
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8.2 - 1.4
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353 - 30
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|
51
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18
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2.63:1 to 33.0:1
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24.1 - 3.8
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551 - 44
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14.0 - 2.2
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361 - 29
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|
61
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20
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2.82:1 to 38.0:1
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31.2 - 5.6
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514 - 38
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18.3 - 3.2
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337 - 25
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|
70
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16
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4.57:1 to 34.7:1
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59.2 - 9.5
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317 - 42
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35.5 - 5.5
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208 - 27
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|
80
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17
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5.64:1 to 31.3:1
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91.0 - 18.5
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257 - 46
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56.9 - 10.7
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168 - 30
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|
90
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19
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5.17:1 to 35.1:1
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137 - 24.1
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280 - 41
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85.8 - 14.0
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184 - 27
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100
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17
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4.92:1 to 29.6:1
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230 - 46.3
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144 - 27.9
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144 - 27.9
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193 - 32
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