The SFRF Series Flange Mounted Solid Output Shaft Combined Helical Worm Gearbox is designed for industrial applications requiring flange-mounted installation, ultra-high reduction ratios, high torque output, and stable low-speed operation. By integrating an inline helical gearbox with a helical worm gearbox, the unit achieves significantly larger reduction ratios while maintaining smooth transmission performance and compact dimensions. The flange-mounted design simplifies machine integration, while the solid output shaft ensures reliable torque transmission for demanding industrial applications. It is widely used in conveyors, lifting systems, mixers, and bulk material handling equipment. Output torque ranges up to 35,000 Nm, while input power capacities range from 0.18 kW to 160 kW depending on configuration.
| Item | Specification |
| Gear Type | Combined Helical + Helical Worm |
| Mounting Type | Flange Mounted |
| Input Type | IEC Motor Input / Shaft Input |
| Output Shaft Type | Solid Output Shaft |
| Housing Material | High-Strength Cast Iron |
| Gear Material | Alloy Steel / Bronze Worm Wheel |
| Gear Surface Hardness | HRC58–62 |
| Transmission Efficiency | Up to 92% |
| Ratio Range | 100 – 20,000+ |
| Output Torque | 500 – 35,000 Nm |
| Motor Power | 0.18 – 160 kW |
| 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) |
| SFRF37 | 100 – 500 | 800 | 0.18 – 3 |
| SFRF47 | 150 – 800 | 1,500 | 0.37 – 5.5 |
| SFRF57 | 200 – 1500 | 3,000 | 0.55 – 11 |
| SFRF67 | 300 – 3000 | 6,500 | 1.1 – 22 |
| SFRF77 | 500 – 5000 | 12,000 | 2.2 – 45 |
| SFRF87 | 800 – 10,000 | 22,000 | 4 – 90 |
| SFRF97 | 1000 – 20,000+ | 35,000 | 7.5 – 160 |
