LT-305 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
35kW
Max. rating · 1500 rpm
Ø65mm
Output shaft
135kg
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 | 65 | 65 |
| L2 | Output shaft length | 80 | 80 |
| N | 100 | 100 | |
| M | 108 | 108 | |
| Overall | |||
| C | Centre distance, input to output | 305 | 305 |
| A | Overall length | 650 | 650 |
| H | Overall height | 420 | 420 |
| h | Shaft centre height | 210 | 210 |
| S | 570 | 570 | |
| W | 196 | 196 | |
| B | Base width | 210 | 210 |
| Foot & mounting | |||
| Z | 155 | 155 | |
| T | 40 | 40 | |
| P | 245 | 245 | |
| Q | 245 | 245 | |
| R | 40 | 40 | |
| F | 170 | 170 | |
| ØK | Foot bolt hole Ø | 19 | 19 |
| Keys | |||
| X1 | Input key width | 10 | 10 |
| Y1 | Input shaft to key top | 35.5 | 35.5 |
| X | Output key width | 18 | 18 |
| Y | Output shaft to key top | 69.5 | 69.5 |
| Weight & oil | |||
| Weight | Average weight | 135 kg | 140 kg |
| Oil | Oil quantity | 10 L | 9 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 | 35 | 23.5 | 18 |
| 8:1 | 187.5 | 31 | 20.5 | 15.5 |
| 10:1 | 150 | 25 | 16.5 | 12.5 |
| 12:1 | 125 | 20 | 13.5 | 10 |
| 14:1 | 107.1 | 17.5 | 12 | 9 |
| 16:1 | 93.8 | 15 | 10 | 7.5 |
| 18:1 | 83.3 | 13.5 | 9.5 | 7.5 |
| 20:1 | 75 | 12 | 8.5 | 6 |
| 22:1 | 68.2 | 10.5 | 7 | 5.5 |
| 26:1 | 57.7 | 9.8 | 6.5 | 5.1 |
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-305 and we reply with price, delivery and a certified GA drawing.