
Where the EPNMRV 050 Is Used
Typical applications include bottling line cap tighteners, labelling machine drives, inclined screw conveyors for lightweight granular materials, small rotary drum mixers, and automated gate operators for commercial properties. In Australian industry, the EPNMRV 050 is commonly found in beverage production facilities across South Australia and dairy packaging plants in the Goulburn Valley.
When to Choose This Model
The EPNMRV 050 suits continuous-duty torques up to approximately 40 Nm with motors up to 0.55 kW. When your application requires 0.75 kW or above, or when you need to accommodate 80-frame IEC motor flanges, move to the EPNMRV 063.
For detailed information on housing materials, worm gear efficiency characteristics, and installation orientation guidelines, refer to the EPNMRV Series overview.
EPNMRV 050 Specifications
All data for the EPNMRV 050 standalone gearbox. Input speed: 1,400 RPM.
Selection Table (Input: 1,400 RPM)
| Input Power (kW) | Ratio | Output Speed (RPM) | Torque (Nm) | Radial Load (N) | Service Factor fs |
|---|---|---|---|---|---|
| 0.09 | 15 | 93 | 7 | 861 | 3.9 |
| 20 | 70 | 9 | 948 | 3.1 | |
| 25 | 56 | 10 | 1021 | 2.4 | |
| 30 | 47 | 12 | 1085 | 1.9 | |
| 40 | 35 | 14 | 1194 | 1.2 | |
| 0.12 | 10 | 140 | 7 | 752 | 3.4 |
| 15 | 93 | 9 | 948 | 2.8 | |
| 20 | 70 | 12 | 1085 | 2.4 | |
| 25 | 56 | 14 | 1194 | 1.9 | |
| 30 | 47 | 16 | 1286 | 1.6 | |
| 40 | 35 | 19 | 1447 | 1.2 | |
| 0.18 | 10 | 140 | 10 | 948 | 2.3 |
| 15 | 93 | 14 | 1315 | 1.9 | |
| 20 | 70 | 18 | 1447 | 1.5 | |
| 25 | 56 | 20 | 1504 | 1.5 | |
| 30 | 47 | 24 | 1657 | 1.2 | |
| 40 | 35 | 29 | 1824 | 0.8 | |
| 0.25 | 10 | 140 | 14 | 1315 | 1.9 |
| 15 | 93 | 18 | 1447 | 1.5 | |
| 20 | 70 | 21 | 1504 | 1.2 | |
| 25 | 56 | 26 | 1657 | 1.0 | |
| 30 | 47 | 32 | 1964 | 0.9 | |
| 0.37 | 7.5 | 187 | 16 | 1315 | 2.7 |
| 10 | 140 | 21 | 1447 | 2.1 | |
| 15 | 93 | 28 | 1824 | 1.6 | |
| 20 | 70 | 35 | 1964 | 1.2 | |
| 25 | 56 | 39 | 2274 | 1.0 | |
| 0.55 | 10 | 140 | 31 | 2274 | 2.4 |
| 15 | 93 | 39 | 2274 | 1.6 | |
| 20 | 70 | 46 | 2503 | 1.1 | |
| 25 | 56 | 54 | 2696 | 0.9 |
fs = Service Factor. Required minimums: A (uniform) fs >= 1.0 | B (moderate shock) fs >= 1.25 | C (heavy shock) fs >= 1.75. Contact our engineers for application-specific verification.
Gear Engagement Parameters
| Ratio (i) | Worm Starts (Z1) | Lead Angle | Module (m) | Dynamic Eff. | Static Eff. | Self-Locking |
|---|---|---|---|---|---|---|
| 5 | 4 | 23 deg 49 min | 2.5 | 0.89 | 0.88 | No |
| 7.5 | 4 | 21 deg 48 min | 1.5 | 0.88 | 0.86 | No |
| 10 | 4 | 16 deg 42 min | 1.5 | 0.86 | 0.82 | No |
| 15 | 2 | 11 deg 19 min | 1.5 | 0.82 | 0.79 | No |
| 20 | 2 | 8 deg 06 min | 2 | 0.79 | 0.76 | No |
| 25 | 1 | 9 deg 05 min | 2 | 0.72 | 0.67 | No |
| 30 | 1 | 5 deg 43 min | 2 | 0.66 | 0.63 | No |
| 40 | 1 | 4 deg 21 min | 1 | 0.59 | 0.53 | Marginal |
| 50 | 1 | 3 deg 03 min | 1.25 | 0.53 | 0.49 | Yes (marginal) |
| 60 | 1 | 2 deg 52 min | 1 | 0.50 | 0.44 | Yes (marginal) |
| 80 | 1 | — | — | — | — | Yes |
| 100 | 1 | — | — | — | — | Yes |
Self-locking should not be relied upon as the sole backstop — external brakes recommended for safety-critical loads.
Overall Dimensions (mm)

| Model | A | B | C | D(H8) | F | G | H | H1 | I | M |
|---|---|---|---|---|---|---|---|---|---|---|
| EPNMRV 050 | 120 | 144 | 30 | 80 | 25(24) | 49 | 92 | 85 | 43.5 | 60 |
All dimensions in mm. Default mounting: B3 (horizontal). Specify orientation at time of order.
Output Shaft Dimensions (mm)

| Model | G1 | K1 | L | L1 | b2 | t2 | d(h6) | m | V1 | V2 |
|---|---|---|---|---|---|---|---|---|---|---|
| EPNMRV 050 | 92 | 99.5 | 153 | 199 | 8 | 28 | 25 | M10 | 50 | 53.5 |
d(h6) = output shaft diameter with h6 tolerance. Contact us for double-side output (SZ) or hollow shaft configurations.
Other Models in This Series
The EPNMRV range covers centre distances from 25 mm to 150 mm.