HC-350 Crane Duty Gearbox
Three stage helical gearbox with three reduction stages, case-hardened and profile-ground gears, roller bearings throughout and a solid output shaft.
Dimensions (mm)
| Code | Dimension | CI body | Fabricated |
|---|---|---|---|
| Shafts | |||
| ØD1 | Input shaft Ø | 28 | 28 |
| L1 | Input shaft length | 80 | 80 |
| ØD2 | Output shaft Ø | 55 | 55 |
| L2 | Output shaft length | 100 | 100 |
| N | 112 | 112 | |
| M | 127 | 127 | |
| Overall | |||
| C | Centre distance, input to output | 350 | 350 |
| A | Overall length | 645 | 650 |
| H | Overall height | 343 | 340 |
| h | Shaft centre height | 170 | 170 |
| S | 570 | 570 | |
| W | 240 | 240 | |
| B | Base width | 255 | 255 |
| Foot & mounting | |||
| Z | 135 | 135 | |
| T | 25 | 25 | |
| P | 220 | 220 | |
| Q | 135 | 135 | |
| R | 165 | 165 | |
| U | – | 25 | |
| F | 215 | 215 | |
| ØK | Foot bolt hole Ø | 16 | 16 |
| Keys | |||
| X1 | Input key width | 8 | 8 |
| Y1 | Input shaft to key top | 31.5 | 31.5 |
| X | Output key width | 16 | 16 |
| Y | Output shaft to key top | 59.5 | 59.5 |
| Weight & oil | |||
| Weight | Average weight | 130 kg | 140 kg |
| Oil | Oil quantity | 12 L | 12 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 | Actual | n₂ rpm | kW @1500 | kW @1000 | kW @750 |
|---|---|---|---|---|---|
| 25:1 | 25.5 | 60 | 19 | 15 | 12 |
| 31.5:1 | 31.7 | 47.6 | 17.2 | 13.6 | 10.9 |
| 35.5:1 | 35.5 | 42.3 | 15.7 | 12.4 | 9.9 |
| 40:1 | 39.7 | 37.5 | 14.3 | 11.3 | 9 |
| 45:1 | 45 | 33.3 | 13 | 10.2 | 8.2 |
| 50:1 | 48.3 | 30 | 11.8 | 9.3 | 7.5 |
| 56:1 | 57.1 | 26.8 | 10.7 | 8.5 | 6.8 |
| 63:1 | 63 | 23.8 | 9.8 | 7.7 | 6.2 |
| 71:1 | 70.8 | 21.1 | 8.9 | 7 | 5.6 |
| 80:1 | 83.7 | 18.8 | 8.1 | 6.4 | 5.1 |
| 90:1 | 90 | 16.7 | 7.4 | 5.8 | 4.6 |
| 100:1 | 99.1 | 15 | 6.7 | 5.3 | 4.2 |
| 120:1 | 119.1 | 12.5 | 6.1 | 4.8 | 3.8 |
| 140:1 | 141.1 | 10.7 | 5.5 | 4.4 | 3.5 |
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
Permissible overhung load on the output shaft is 14 kN, acting at the middle of the shaft extension (L/2). Above this, support the drum on its own shaft and bearings with a flexible coupling, or use the standard gear ring below.
Standard gear ring · HC-350
| ØD | ØP | ØS | C | SL1 | T | ØDR | ØB | BL |
|---|---|---|---|---|---|---|---|---|
| 300 | 240 | 175 | 185 | 4 | 20 | 17.5 | 62 | 25 |
| 350 | 290 | 225 | 185 | 4 | 20 | 17.5 | 62 | 25 |
All dimensions in mm. Other gear ring sizes on request. Request a certified drawing before manufacture.
Need a price or a certified GA drawing?
Send the duty for HC-350 and we reply with price, delivery and a certified GA drawing.