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EPNMRV 050 Worm Gearbox | 50mm Aluminium Worm Reducer

EPNMRV 050 50mm Mid-Range Aluminium Worm Gearbox

50 mm centre distance | Ratios 5:1 to 100:1 | Die-cast aluminium housing | IP55 sealed

EPNMRV 050 aluminium worm gearbox 50mm centre distance

EPNMRV 050 Worm Reducer

The EPNMRV 050 occupies the mid-range of the EPNMRV series, delivering a meaningful step up in torque capacity over the 040 while retaining the lightweight aluminium construction that simplifies overhead and wall-mounted installations. With a 50 mm centre distance and input power acceptance up to 0.55 kW, it handles the vast majority of single-axis packaging, bottling, and light conveyor drives without the weight penalty of a cast-iron gearbox.

50 mm
Centre Distance
5:1 to 100:1
Ratio Range
2,696 Nm
Max Output Torque
0.09 — 0.55 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 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)RatioOutput Speed (RPM)Torque (Nm)Radial Load (N)Service Factor fs
0.09159378613.9
207099483.1
25561010212.4
30471210851.9
40351411941.2
0.121014077523.4
159399482.8
20701210852.4
25561411941.9
30471612861.6
40351914471.2
0.1810140109482.3
15931413151.9
20701814471.5
25562015041.5
30472416571.2
40352918240.8
0.25101401413151.9
15931814471.5
20702115041.2
25562616571.0
30473219640.9
0.377.51871613152.7
101402114472.1
15932818241.6
20703519641.2
25563922741.0
0.55101403122742.4
15933922741.6
20704625031.1
25565426960.9

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 AngleModule (m)Dynamic Eff.Static Eff.Self-Locking
5423 deg 49 min2.50.890.88No
7.5421 deg 48 min1.50.880.86No
10416 deg 42 min1.50.860.82No
15211 deg 19 min1.50.820.79No
2028 deg 06 min20.790.76No
2519 deg 05 min20.720.67No
3015 deg 43 min20.660.63No
4014 deg 21 min10.590.53Marginal
5013 deg 03 min1.250.530.49Yes (marginal)
6012 deg 52 min10.500.44Yes (marginal)
801Yes
1001Yes

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

Overall Dimensions (mm)

EPNMRV 050 worm gearbox dimensional drawing
ModelABCD(H8)FGHH1IM
EPNMRV 050120144308025(24)49928543.560

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

Output Shaft Dimensions (mm)

EPNMRV output shaft dimensional drawing
ModelG1K1LL1b2t2d(h6)mV1V2
EPNMRV 0509299.515319982825M105053.5

d(h6) = output shaft diameter with h6 tolerance. Contact us for double-side output (SZ) or hollow shaft configurations.

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.