NMRV050 Worm Gearbox with 750W Servo Motor – Mounting Dimensions & Drawing
This guide provides complete mounting dimensions for the NMRV050 worm gearbox paired with a 750W servo motor — a popular combination for automation, robotics, and precision positioning applications
H2: Key Advantages of This Combination
| Feature | Benefit |
|---|---|
| Compact design | Saves space in tight equipment layouts |
| High precision | Suitable for servo-driven positioning systems |
| Wide ratio range | 5:1 to 100:1 available |
| Square flange input | Direct servo motor mounting — no adapter needed |
H2: Complete Mounting Dimensions
NMRV050 Gearbox (Worm Reducer):
| Parameter | Specification |
| Center distance | 50 mm |
| Input shaft diameter | 19 mm (for servo motor) |
| Output shaft diameter | 25 mm |
| Housing material | Aluminium alloy (sizes 025–090) |
| Weight | Approx. 3.5 kg (without motor) |
| Mounting | Omnibearing — any position |
750W Servo Motor (Typical 80mm Frame):
| Parameter | Specification |
| Flange size | 80 × 80 mm (square) |
| Bolt circle diameter | 90 mm |
| Pilot diameter (spigot) | 70 mm |
| Shaft diameter | 19mm |
| Shaft length | 35mm |
| Keyway | 6mm |
H2: Input Flange Configuration
For servo motor mounting, NMRV050 uses a square flange input (80×80mm) that bolts directly to the
servo motor face.
Input bore: 19 mm diameter — accepts standard 750W servo motor shaft
Flange type: Square flange (servo-specific), not the round B5 flange used for AC motors
Mounting holes: 4 holes on 90mm bolt circle