The SAS Series Hollow Output Shaft Helical Worm Gearbox with Shaft Input is designed for industrial applications requiring direct shaft input connection, hollow shaft direct mounting, high reduction ratios, and reliable torque transmission. The shaft input design allows direct connection to upstream drive shafts, while the hollow output shaft enables easy installation onto driven shafts without additional coupling components. Combined with a helical gear pre-stage and worm gear final stage, the gearbox delivers smooth operation, compact structure, high load capacity, and optional self-locking capability. It is widely used in conveying systems, mixers, packaging equipment, and automation machinery. Output torque ranges up to 22,000 Nm, while input power capacities range from 0.12 kW to 110 kW depending on configuration.
| Item | Specification |
| Gear Type | Helical + Worm Combined |
| Mounting Type | Foot Mounted / Flange Mounted |
| Input Type | Shaft Input (Solid Shaft) |
| Output Shaft Type | Hollow Output Shaft |
| Housing Material | High-Strength Cast Iron |
| Gear Material | Alloy Steel / Bronze Worm Wheel |
| Gear Surface Hardness | HRC58–62 |
| Transmission Efficiency | Up to 90% |
| Ratio Range | 10 – 5000+ |
| Output Torque | 100 – 22,000 Nm |
| Motor Power | 0.12 – 110 kW |
| Lubrication | Oil Bath Lubrication |
| Connection Type | Shaft Input + Hollow Shaft Output |
| Protection Class | IP55 (Optional IP65) |
| Ambient Temperature | -20°C to +40°C |
| Model | Ratio Range | Output Torque (Nm) | Motor Power (kW) |
| SAS37 | 10 – 120 | 180 | 0.12 – 1.5 |
| SAS47 | 15 – 200 | 350 | 0.18 – 4 |
| SAS57 | 20 – 300 | 700 | 0.37 – 7.5 |
| SAS67 | 30 – 400 | 1,800 | 0.75 – 15 |
| SAS77 | 40 – 600 | 4,000 | 1.5 – 30 |
| SAS87 | 50 – 1200 | 8,500 | 3 – 55 |
| SAS97 | 80 – 5000+ | 22,000 | 5.5 – 110 |
