The KARF Series Hollow Output Shaft Combined Helical Bevel Gearbox adopts a flange-mounted installation structure with a hollow output shaft design and a combined helical + helical bevel gear transmission system. It is engineered for high-torque, high-ratio, and compact drive applications where direct shaft-mount connection is required. This KARF Series Gear Reducer is widely used in heavy-duty conveying, bucket elevators, screw conveyors, mining machinery, and bulk material handling systems. With torque capacity up to 80,000 Nm and motor power up to 200 kW, the KARF Series provides a reliable and efficient solution for direct-mounted industrial drive systems.
| Item | Specification |
| Product Series | KARF Series |
| Gear Type | Combined Helical + Helical Bevel Gearbox |
| Mounting Type | Flange Mounted |
| Output Shaft | Hollow Shaft Output |
| Gear Material | Carburized Alloy Steel |
| Housing Material | High-strength Cast Iron |
| Gear Ratio Range | 20:1 – 35,000:1 |
| Output Torque | Up to 80,000 Nm |
| Motor Power Range | 0.18 – 200 kW |
| Efficiency | Up to 96% |
| Lubrication | Oil Splash Lubrication |
| Mounting Position | B5 / V1 / V3 etc. |
| Ambient Temperature | -20°C ~ +40°C |
| Protection Class | IP55 / IP65 Optional |
| Model | Output Torque (Nm) | Ratio Range | Motor Power (kW) |
| KARF37 | 300 – 1,800 | 20 – 350 | 0.18 – 3 |
| KARF47 | 500 – 3,500 | 25 – 500 | 0.37 – 5.5 |
| KARF57 | 900 – 6,500 | 30 – 800 | 0.75 – 11 |
| KARF67 | 1,800 – 12,000 | 40 – 1,500 | 1.5 – 22 |
| KARF77 | 3,500 – 20,000 | 60 – 3,000 | 2.2 – 45 |
| KARF87 | 6,500 – 35,000 | 80 – 8,000 | 4 – 90 |
| KARF97 | 12,000 – 55,000 | 100 – 15,000 | 7.5 – 160 |
| KARF107 | 20,000 – 80,000 | 120 – 35,000 | 11 – 200 |
Note: All models can be customized according to shaft size, hollow bore dimension, motor brand, and installation requirements.
