{"id":1750,"date":"2026-05-22T08:59:47","date_gmt":"2026-05-22T08:59:47","guid":{"rendered":"https:\/\/chinawormgearbox.xyz\/product\/epnrv040-shaft-input-aluminium-worm-reducer\/"},"modified":"2026-05-22T08:59:47","modified_gmt":"2026-05-22T08:59:47","slug":"epnrv040-shaft-input-aluminium-worm-reducer","status":"publish","type":"product","link":"https:\/\/chinawormgearbox.xyz\/id\/product\/epnrv040-shaft-input-aluminium-worm-reducer\/","title":{"rendered":"EPNRV040 Shaft-Input Aluminium Worm Reducer"},"content":{"rendered":"
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EPNRV040 Shaft-Input Aluminium Worm Reducer \u2014 Overview<\/h2>\n

The EPNRV040 aluminium worm reducer combines the corrosion-resistant construction of the EPNMRV series with the shaft-input flexibility demanded by agricultural and grain handling equipment designers. Without an integrated motor flange, the EPNRV040 connects directly to PTO belt drives, roller chain sprockets, and existing line shafts \u2014 making it the standard choice for retrofitting speed reduction into grain auger drives, belt-driven irrigation pump assemblies, and fan speed reduction applications across Australia’s agricultural sector. Weighing 2.3 kg and delivering up to 45 Nm output torque, the EPNRV040 is a cost-effective, lightweight speed reduction solution for belt and chain drive machinery operating at input speeds from 300 to 1,400 rpm.<\/p>\n

\"EPNRV040<\/div>\n

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EPNRV040 Technical Specifications<\/h2>\n

\"EPNRV040<\/p>\n

General Specifications<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nEPNRV040<\/td>\n<\/tr>\n
Maximum Output Torque (M2)<\/td>\n45 Nm<\/td>\n<\/tr>\n
Maximum Output Radial Force (Fr2)<\/td>\n3118 N<\/td>\n<\/tr>\n
Maximum Input Shaft Radial Force (Fr1)<\/td>\n350 N<\/td>\n<\/tr>\n
Available Gear Ratios (i)<\/td>\n5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100<\/td>\n<\/tr>\n
Output Shaft Diameter<\/td>\n18 mm \/ 0.750 in<\/td>\n<\/tr>\n
Input Shaft Diameter<\/td>\n12.7 mm \/ 0.500 in<\/td>\n<\/tr>\n
Input Type<\/td>\nOpen shaft \u2014 no motor flange<\/td>\n<\/tr>\n
Compatible Input Sources<\/td>\nV-belt pulley, chain sprocket, flexible coupling, line shaft<\/td>\n<\/tr>\n
Unit Weight<\/td>\n2.3 kg<\/td>\n<\/tr>\n
Housing Material<\/td>\nDie-cast ADC12 aluminium alloy<\/td>\n<\/tr>\n
Worm Wheel Material<\/td>\nHigh-tensile phosphor bronze<\/td>\n<\/tr>\n
Worm Shaft Material<\/td>\n20CrMnTi alloy steel \u2014 case-hardened & ground<\/td>\n<\/tr>\n
Surface Finish<\/td>\nTwo-coat baked epoxy-polyester<\/td>\n<\/tr>\n
Standard Mounting<\/td>\nB3 foot \/ hollow bore with torque arm<\/td>\n<\/tr>\n
Lubrication<\/td>\nISO VG 220 synthetic gear oil<\/td>\n<\/tr>\n
Reference Input Speed (n1)<\/td>\n1,400 rpm (50 Hz 4-pole reference)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Inch-Series Dimension Reference<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n
Dimension<\/th>\nInch Value<\/th>\nMetric Equivalent<\/th>\n<\/tr>\n<\/thead>\n
A \u2013 Body width<\/td>\n3.07 in<\/td>\n78 mm<\/td>\n<\/tr>\n
B \u2013 Body height<\/td>\n2.81 in<\/td>\n71 mm<\/td>\n<\/tr>\n
J \u2013 Overall length<\/td>\n3.98 in<\/td>\n101 mm<\/td>\n<\/tr>\n
Output shaft dia.<\/td>\n0.750 in<\/td>\n19 mm<\/td>\n<\/tr>\n
Input shaft dia.<\/td>\n0.500 in<\/td>\n12.7 mm<\/td>\n<\/tr>\n
Max input shaft radial load (Fr1)<\/td>\n\u2013<\/td>\n350 N<\/td>\n<\/tr>\n
Max output shaft radial load (Fr2)<\/td>\n\u2013<\/td>\n3,118 N<\/td>\n<\/tr>\n
Weight<\/td>\n\u2013<\/td>\n2.3 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Performance Data \u2014 EPNRV040 (n1 = 1,400 rpm)<\/h3>\n
\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Ratio (i)<\/th>\nn2 (rpm)<\/th>\nP1 (kW)<\/th>\nM2 (Nm)<\/th>\nFr2 (N)<\/th>\nFr1 (N)<\/th>\n<\/tr>\n<\/thead>\n
5<\/td>\n280<\/td>\n1.1<\/td>\n34<\/td>\n1149<\/td>\n250<\/td>\n<\/tr>\n
7.5<\/td>\n186.7<\/td>\n0.9<\/td>\n40<\/td>\n1315<\/td>\n294<\/td>\n<\/tr>\n
10<\/td>\n140<\/td>\n0.7<\/td>\n40<\/td>\n1447<\/td>\n331<\/td>\n<\/tr>\n
15<\/td>\n93.3<\/td>\n0.5<\/td>\n40<\/td>\n1657<\/td>\n331<\/td>\n<\/tr>\n
20<\/td>\n70<\/td>\n0.4<\/td>\n39<\/td>\n1824<\/td>\n350<\/td>\n<\/tr>\n
25<\/td>\n56<\/td>\n0.3<\/td>\n38<\/td>\n1964<\/td>\n350<\/td>\n<\/tr>\n
30<\/td>\n46.7<\/td>\n0.3<\/td>\n45<\/td>\n2087<\/td>\n350<\/td>\n<\/tr>\n
40<\/td>\n35<\/td>\n0.2<\/td>\n41<\/td>\n2298<\/td>\n350<\/td>\n<\/tr>\n
50<\/td>\n28<\/td>\n0.2<\/td>\n39<\/td>\n2475<\/td>\n350<\/td>\n<\/tr>\n
60<\/td>\n23.3<\/td>\n0.2<\/td>\n36<\/td>\n2630<\/td>\n350<\/td>\n<\/tr>\n
80<\/td>\n17.5<\/td>\n0.1<\/td>\n33<\/td>\n2895<\/td>\n350<\/td>\n<\/tr>\n
100<\/td>\n14<\/td>\n0.1<\/td>\n29<\/td>\n3118<\/td>\n350<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Fr2 = maximum radial force on output shaft. Fr1 = maximum radial force on input shaft (belt\/chain tension resultant). Ensure both Fr1 and Fr2 values are not exceeded in your application.<\/p>\n