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EPNMRV 025 Worm Gearbox | 25mm Compact Aluminium Reducer

EPNMRV 025 Compact 25mm Aluminium Worm Gearbox

25 mm centre distance | Ratios 5:1 to 60:1 | Die-cast aluminium housing | IP55 sealed

EPNMRV 025 aluminium worm gearbox 25mm centre distance

EPNMRV 025 Worm Reducer

The EPNMRV 025 is the smallest model in the EPNMRV series, purpose-built for space-constrained applications where a conventional gearbox will not physically fit. With a 25 mm centre distance, it delivers precise speed reduction in ratios from 5:1 to 60:1 while weighing under 2.5 kg. Despite its compact footprint, it retains the same ADC12 aluminium construction and centrifugally cast bronze worm wheel used across the entire EPNMRV range.

25 mm
Centre Distance
5:1 to 60:1
Ratio Range
1,006 Nm
Max Output Torque
0.06 — 0.12 kW
Input Power
ADC12
Housing Material
IP55
Protection Class
Aluminium HousingHollow / Solid Shaft IEC B5 / B14 FlangeISO 9001 CE Certified18-Month Warranty

Where the EPNMRV 025 Is Used

Typical installations include small-format packaging machines, laboratory sample conveyors, automated sliding gates, PCB handling systems, and compact rotary indexing tables. In Australia, we frequently supply the EPNMRV 025 to OEMs building benchtop automation equipment and precision dispensing systems for the pharmaceutical sector.

When to Choose This Model

Choose the EPNMRV 025 when your envelope constraint is the primary driver and the required output torque stays below 15 Nm at continuous duty. If your application demands higher torque or a wider motor flange, step up to the EPNMRV 030 (30 mm centre distance).

For detailed information on housing materials, worm gear efficiency characteristics, and installation orientation guidelines, refer to the EPNMRV Series overview.

EPNMRV 025 Specifications

All data for the EPNMRV 025 standalone gearbox. Input speed: 1,400 RPM.

Selection Table (Input: 1,400 RPM)

Input Power (kW)RatioOutput Speed (RPM)Torque (Nm)Radial Load (N)Service Factor fs
0.06528024396.2
7.518735034.2
1014035533.5
159356332.5
207066971.9
304787981.6
4035108781.2
5028129460.9
60231410060.7
0.097.518745533.9
1014056332.8
159376972.1
207097981.6
3047128781.2
4035149460.9
50281610060.7
0.121014076972.5
159397981.9
2070128781.3
30471610061.0
40351911940.9
50282212860.8

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 AngleModule (m)Dynamic Eff.Static Eff.Self-Locking
5630 deg 58 min1.250.870.72No
7.5421 deg 48 min1.250.850.71No
10316 deg 42 min1.250.830.68No
15211 deg 19 min1.250.790.61No
20210 deg 53 min0.750.56No
3015 deg 43 min10.620.46Marginal
4015 deg 29 min0.80.580.41Marginal
5013 deg 28 min0.80.550.36Marginal
6012 deg 52 min0.500.34Yes (marginal)

Self-locking should not be relied upon as the sole backstop — external brakes recommended for safety-critical loads.

Overall Dimensions (mm)

EPNMRV 025 worm gearbox dimensional drawing
ModelABCD(H8)FGHH1IM
EPNMRV 025506510.43099325627

All dimensions in mm. Default mounting: B3 (horizontal). Specify orientation at time of order.

Need Help Selecting the Right EPNMRV Model?

Send us your torque, ratio, and mounting requirements. Our engineers will return a formal sizing report within 24 hours.