The FH Series Hollow Output Shaft Shrink Disc Mounted Parallel Shaft Helical Gearbox is specially engineered for industrial transmission systems requiring backlash-free shaft connection, compact installation, and high-efficiency parallel shaft power transmission. Featuring a shrink disc mounted hollow output shaft, the gearbox enables direct shaft mounting without keys, ensuring high concentricity, excellent torque transmission, and easy installation or removal. Combined with precision-ground parallel shaft helical gears, the FH Series delivers smooth operation, high transmission efficiency, low noise, and exceptional load capacity. Available with IEC motor input or solid shaft input configurations, it is widely used in conveyors, mining equipment, bulk material handling, mixers, environmental protection machinery, port equipment, and automated production systems. Output torque reaches up to 20,000 Nm, with motor power ranging from 0.12 kW to 200 kW, depending on model configuration.
| Item | Specification |
| Gear Type | Parallel Shaft Helical Gear |
| Mounting Type | Shrink Disc Mounted |
| Input Type | IEC Motor Input / Solid Shaft Input |
| Output Type | Hollow Output Shaft with Shrink Disc |
| Gear Material | High-Strength Alloy Steel |
| Gear Hardness | HRC58–62 |
| Transmission Efficiency | Up to 96% |
| Ratio Range | 3.8 – 281.7 |
| Output Torque | Up to 20,000 Nm |
| Motor Power | 0.12 – 200 kW |
| Housing Material | High-Strength Cast Iron |
| Lubrication | Oil Bath Lubrication |
| Protection Class | IP55 (Optional IP65) |
| Ambient Temperature | -20°C to +40°C |
| Model | Ratio Range | Output Torque (Nm) | Motor Power (kW) |
| FH37 | 3.8 – 60 | 200 | 0.12 – 3 |
| FH47 | 5 – 80 | 450 | 0.18 – 5.5 |
| FH57 | 5 – 100 | 900 | 0.37 – 7.5 |
| FH67 | 6 – 150 | 2,000 | 0.75 – 15 |
| FH77 | 8 – 180 | 4,500 | 1.5 – 30 |
| FH87 | 10 – 220 | 8,500 | 2.2 – 55 |
| FH97 | 12 – 250 | 13,000 | 4 – 110 |
| FH107 | 15 – 281.7 | 20,000 | 7.5 – 200 |
