LT-250 Crane Duty Gearbox
Two stage helical gearbox with two reduction stages, case-hardened and profile-ground gears, roller bearings throughout and a solid output shaft.
CI BodyFabricatedVertical option
6–26:1
Nominal ratios
18kW
Max. rating · 1500 rpm
Ø58mm
Output shaft
90kg
Average weight
Dimensions (mm)
| Code | Dimension | CI body | Fabricated |
|---|---|---|---|
| Shafts | |||
| ØD1 | Input shaft Ø | 32 | 32 |
| L1 | Input shaft length | 60 | 60 |
| ØD2 | Output shaft Ø | 58 | 58 |
| L2 | Output shaft length | 80 | 80 |
| N | 95 | 95 | |
| M | 120 | 120 | |
| Overall | |||
| C | Centre distance, input to output | 250 | 250 |
| A | Overall length | 540 | 540 |
| H | Overall height | 340 | 340 |
| h | Shaft centre height | 170 | 170 |
| S | 460 | 460 | |
| W | 186 | 186 | |
| B | Base width | 210 | 210 |
| Foot & mounting | |||
| Z | 110 | 110 | |
| T | 40 | 40 | |
| P | 185 | 185 | |
| Q | 195 | 195 | |
| R | 40 | 40 | |
| F | 165 | 165 | |
| ØK | Foot bolt hole Ø | 17 | 17 |
| Keys | |||
| X1 | Input key width | 10 | 10 |
| Y1 | Input shaft to key top | 35.5 | 35.5 |
| X | Output key width | 16 | 16 |
| Y | Output shaft to key top | 62.5 | 62.5 |
| Weight & oil | |||
| Weight | Average weight | 90 kg | 100 kg |
| Oil | Oil quantity | 6 L | 5 L |
| Vertical mounting | |||
| — | Same dimensions, vertical mounted arrangement available | ||
Letter codes match the GA drawing. Weight and oil quantity are indicative. Dimensions are subject to change with product development.
Power ratings
| Ratio i | n₂ rpm | kW @1500 | kW @1000 | kW @750 |
|---|---|---|---|---|
| 6:1 | 250 | 18 | 12 | 9 |
| 8:1 | 187.5 | 16 | 11 | 8 |
| 10:1 | 150 | 12.5 | 8.5 | 6.5 |
| 12:1 | 125 | 10.5 | 7 | 5.5 |
| 14:1 | 107.1 | 9 | 6 | 4.5 |
| 16:1 | 93.8 | 7.5 | 5 | 4 |
| 18:1 | 83.3 | 6.5 | 4.2 | 3.2 |
| 20:1 | 75 | 5.8 | 3.8 | 2.9 |
| 22:1 | 68.2 | 5.3 | 3.5 | 2.6 |
| 26:1 | 57.7 | 5 | 3.2 | 2.5 |
Nominal input power in kW at the stated input speed. n₂ is the nominal output speed at 1500 rpm input. Consult J.S. Gear for application-specific selection.
Output shaft loading
Mount driven components with a flexible coupling. Contact us with your arrangement for an overhung load check.
Need a price or a certified GA drawing?
Send the duty for LT-250 and we reply with price, delivery and a certified GA drawing.