NRV Series Shaft Input Worm Gearbox adopts a compact worm gear transmission structure with direct shaft input design, providing reliable torque transmission, smooth operation and flexible installation. The shaft input configuration eliminates the need for motor flange connection and allows easy integration with various driving systems. With a typical output torque range of 10–1,500 N·m and power range of 0.06–15 kW, it is widely used in conveyors, packaging machinery, automation equipment and industrial drive systems requiring compact structure and stable performance.
| Item | Specification |
| Product Series | NRV Series |
| Gear Type | Worm Gear |
| Transmission Structure | Worm & Worm Wheel |
| Mounting Type | Foot Mounted / Flange Mounted Optional |
| Input Type | Shaft Input |
| Output Shaft Type | Hollow Shaft / Solid Shaft Optional |
| Housing Material | Aluminum Alloy / Cast Iron Optional |
| Worm Material | Hardened Alloy Steel |
| Worm Wheel Material | Bronze Alloy |
| Lubrication | Synthetic Oil Lubrication |
| Protection Grade | IP54 / IP55 Optional |
| Efficiency | Up to 90% |
| Ratio Range | 5–100 |
| Power Range | 0.06–15 kW |
| Output Torque | 10–1,500 N·m |
| Installation Direction | Multiple Installation Positions Available |
| Model | Frame Size | Ratio Range | Rated Power (kW) | Output Torque (N·m) |
| NRV025 | 025 | 5–60 | 0.06–0.25 | 10 |
| NRV030 | 030 | 5–80 | 0.09–0.55 | 25 |
| NRV040 | 040 | 7.5–100 | 0.12–1.1 | 50 |
| NRV050 | 050 | 7.5–100 | 0.18–2.2 | 100 |
| NRV063 | 063 | 7.5–100 | 0.37–4 | 200 |
| NRV075 | 075 | 7.5–100 | 0.55–7.5 | 400 |
| NRV090 | 090 | 7.5–100 | 1.1–11 | 800 |
| NRV110 | 110 | 7.5–100 | 2.2–15 | 1,500 |
Note: Customized input shaft dimensions, output shaft configurations, reduction ratios and special application solutions are available upon request.
