HC-550 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 | 45 | 45 |
| L1 | Input shaft length | 120 | 120 |
| ØD2 | Output shaft Ø | 95 | 95 |
| L2 | Output shaft length | 170 | 170 |
| N | 170 | 170 | |
| M | 235 | 235 | |
| Overall | |||
| C | Centre distance, input to output | 550 | 550 |
| A | Overall length | 1020 | 1025 |
| H | Overall height | 495 | 495 |
| h | Shaft centre height | 250 | 250 |
| S | 905 | 905 | |
| W | 365 | 365 | |
| B | Base width | 380 | 380 |
| Foot & mounting | |||
| Z | 183 | 183 | |
| T | 45 | 45 | |
| P | 305 | 305 | |
| Q | 195 | 195 | |
| R | 315 | 315 | |
| U | – | 45 | |
| F | 315 | 315 | |
| ØK | Foot bolt hole Ø | 21 | 21 |
| Keys | |||
| X1 | Input key width | 14 | 14 |
| Y1 | Input shaft to key top | 49 | 49 |
| X | Output key width | 25 | 25 |
| Y | Output shaft to key top | 100.5 | 100.5 |
| Weight & oil | |||
| Weight | Average weight | 446 kg | 560 kg |
| Oil | Oil quantity | 45 L | 45 L |
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 | 60 | 86.4 | 59.9 | 47.9 |
| 31.5:1 | 32.2 | 47.6 | 78.6 | 54.5 | 43.6 |
| 35.5:1 | 35.5 | 42.3 | 71.5 | 49.6 | 39.6 |
| 40:1 | 40.4 | 37.5 | 65.1 | 45.1 | 36.1 |
| 45:1 | 45 | 33.3 | 59.2 | 41 | 32.8 |
| 50:1 | 50.9 | 30 | 53.9 | 37.3 | 29.9 |
| 56:1 | 57.4 | 26.8 | 49 | 34 | 27.2 |
| 63:1 | 62 | 23.8 | 44.6 | 30.9 | 24.7 |
| 71:1 | 72.4 | 21.1 | 40.6 | 28.1 | 22.5 |
| 80:1 | 80.4 | 18.8 | 36.9 | 25.6 | 20.5 |
| 90:1 | 93.9 | 16.7 | 33.6 | 23.3 | 18.6 |
| 100:1 | 101.4 | 15 | 30.6 | 21.2 | 16.9 |
| 120:1 | 122 | 12.5 | 25.3 | 17.5 | 14 |
| 140:1 | 142.4 | 10.7 | 23 | 15.9 | 12.7 |
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 26 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-550
| ØD | ØP | ØS | C | SL1 | T | ØDR | ØB | BL |
|---|---|---|---|---|---|---|---|---|
| 450 | 375 | 250 | 295 | 5 | 28 | 21 | 125 | 50 |
| 550 | 475 | 300 | 295 | 5 | 28 | 21 | 125 | 50 |
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-550 and we reply with price, delivery and a certified GA drawing.