Where the EPNMRV 150 Is Used
Deployed on large-scale water treatment clarifier drives (30m+ diameter tanks), heavy conveyor head drives in quarry and mining operations, large sluice gate and penstock actuators for dam infrastructure, industrial kiln rotation systems, and heavy-duty agricultural processing equipment including sugar mill auxiliary drives. In Australia, the EPNMRV 150 is specified for infrastructure-scale water treatment and mining projects where the weight saving over cast iron directly reduces structural steel costs.
When to Choose This Model
The EPNMRV 150 is the correct specification when your application requires output torques between 1,000 Nm and 1,800 Nm at continuous duty with input powers up to 7.5 kW. For applications demanding torques beyond this range, transition to our WPA/WPS cast-iron series or a custom-engineered worm drive.
For detailed information on housing materials, worm gear efficiency characteristics, and installation orientation guidelines, refer to the EPNMRV Series overview.
EPNMRV 150 Specifications
All data for the EPNMRV 150 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 |
|---|---|---|---|---|---|
| 1.1 | 25 | 56 | 311 | 5816 | 2.2 |
| 30 | 47 | 356 | 6181 | 2.0 | |
| 40 | 35 | 462 | 6803 | 1.5 | |
| 1.5 | 20 | 70 | 348 | 5399 | 1.9 |
| 25 | 56 | 425 | 5816 | 1.6 | |
| 30 | 47 | 485 | 6181 | 1.5 | |
| 2.2 | 15 | 93 | 484 | 4905 | 1.4 |
| 20 | 70 | 573 | 7607 | 1.6 | |
| 25 | 56 | 655 | 8084 | 1.6 | |
| 3.0 | 10 | 140 | 657 | 13924 | 1.9 |
| 15 | 93 | 816 | 15325 | 1.4 | |
| 20 | 70 | 960 | 9654 | 1.0 | |
| 4.0 | 10 | 140 | 816 | 10185 | 1.6 |
| 15 | 93 | 896 | 13924 | 1.4 | |
| 20 | 70 | 1310 | 16508 | 0.8 | |
| 5.5 | 7.5 | 187 | 250 | 2785 | 1.0 |
| 10 | 140 | 1023 | 9584 | 0.8 | |
| 15 | 93 | 1037 | 13103 | 1.4 | |
| 7.5 | 7.5 | 187 | 330 | 4285 | 2.5 |
| 10 | 140 | 334 | 5605 | 2.5 | |
| 15 | 93 | 490 | 6416 | 1.9 | |
| 20 | 70 | 638 | 7062 | 1.4 |
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 |
|---|---|---|---|---|---|---|
| 7.5 | 4 | 29 deg 37 min | 6.16 | 0.91 | 0.90 | No |
| 10 | 4 | 24 deg 41 min | 5 | 0.90 | 0.88 | No |
| 15 | 2 | 15 deg 52 min | 3.15 | 0.88 | 0.86 | No |
| 20 | 2 | 12 deg 56 min | 2.5 | 0.86 | 0.84 | No |
| 25 | 1 | 11 deg 19 min | 2.5 | 0.84 | 0.83 | No |
| 30 | 1 | 9 deg 56 min | 2.5 | 0.78 | 0.73 | No |
| 40 | 1 | 5 deg 43 min | 2.5 | 0.73 | 0.68 | No |
| 50 | 1 | 3 deg 45 min | 2 | 0.68 | 0.64 | No |
| 60 | 1 | 3 deg 41 min | 2 | 0.64 | 0.59 | 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 150 | 340 | 400 | 80 | 240 | 50 | — | 200 | 215 | 96 | 210 |
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 150 | 200 | 187 | 297 | 374 | 14 | 53.5 | 50 | M16 | 82 | 87 |
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.