The KFRF Series Flange Mounted Solid Output Shaft Combined Helical Bevel Gearbox adopts a flange-mounted installation structure with a solid output shaft and a combined helical + helical bevel gear transmission system. It is designed to achieve ultra-high reduction ratios, high torque output, and stable heavy-duty operation under compact installation conditions.
This series is widely used in heavy-duty conveying, mining equipment, bulk material handling, and industrial mixing systems requiring very low output speed and high reliability. The torque range can reach up to 80,000 Nm, with motor power up to 200 kW, making it an ideal solution for demanding industrial drive applications.
| Item | Specification |
| Product Series | KFRF Series |
| Gear Type | Combined Helical + Helical Bevel Gearbox |
| Mounting Type | Flange Mounted |
| Output Shaft | Solid Shaft |
| 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) |
| KFRF37 | 300 – 1,800 | 20 – 350 | 0.18 – 3 |
| KFRF47 | 500 – 3,500 | 25 – 500 | 0.37 – 5.5 |
| KFRF57 | 900 – 6,500 | 30 – 800 | 0.75 – 11 |
| KFRF67 | 1,800 – 12,000 | 40 – 1,500 | 1.5 – 22 |
| KFRF77 | 3,500 – 20,000 | 60 – 3,000 | 2.2 – 45 |
| KFRF87 | 6,500 – 35,000 | 80 – 8,000 | 4 – 90 |
| KFRF97 | 12,000 – 55,000 | 100 – 15,000 | 7.5 – 160 |
| KFRF107 | 20,000 – 80,000 | 120 – 35,000 | 11 – 200 |
Note: All models can be customized with different ratios, shaft dimensions, motor brands, and installation configurations.
