{"id":1749,"date":"2026-05-22T08:59:47","date_gmt":"2026-05-22T08:59:47","guid":{"rendered":"https:\/\/chinawormgearbox.xyz\/product\/epnrv030-shaft-input-aluminium-worm-reducer\/"},"modified":"2026-05-22T08:59:47","modified_gmt":"2026-05-22T08:59:47","slug":"epnrv030-shaft-input-aluminium-worm-reducer","status":"publish","type":"product","link":"https:\/\/chinawormgearbox.xyz\/uk\/product\/epnrv030-shaft-input-aluminium-worm-reducer\/","title":{"rendered":"EPNRV030 Shaft-Input Aluminium Worm Reducer"},"content":{"rendered":"
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EPNRV030 Shaft-Input Aluminium Worm Reducer \u2014 Overview<\/h2>\n

The EPNRV030 is the compact entry point in Ever-power’s EPNRV aluminium shaft-input worm reducer series, distinguished from the EPNMRV030 by its open shaft input design \u2014 no integrated motor flange is included. This architecture makes the EPNRV030 uniquely flexible: it accepts input from V-belt drives, roller chain sprockets, flexible couplings, and line shafts, giving machine designers the freedom to specify virtually any rotary drive source. Weighing just 1.2 kg and delivering up to 21 Nm of output torque across eleven standard reduction ratios, the EPNRV030 is the preferred choice for light textile machinery, printing and labelling equipment, and conveyor retrofit projects where the existing drive source cannot be changed to a standard IEC motor-flange format.<\/p>\n

\"EPNRV030<\/div>\n

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EPNRV030 Technical Specifications<\/h2>\n

\"EPNRV030<\/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>\nEPNRV030<\/td>\n<\/tr>\n
Maximum Output Torque (M2)<\/td>\n21 Nm<\/td>\n<\/tr>\n
Maximum Output Radial Force (Fr2)<\/td>\n1504 N<\/td>\n<\/tr>\n
Maximum Input Shaft Radial Force (Fr1)<\/td>\n210 N<\/td>\n<\/tr>\n
Available Gear Ratios (i)<\/td>\n5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80<\/td>\n<\/tr>\n
Output Shaft Diameter<\/td>\n16 mm \/ 0.625 in<\/td>\n<\/tr>\n
Input Shaft Diameter<\/td>\n9.525 mm \/ 0.375 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>\n1.2 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>\n2.48 in<\/td>\n63 mm<\/td>\n<\/tr>\n
B \u2013 Body height<\/td>\n2.24 in<\/td>\n57 mm<\/td>\n<\/tr>\n
J \u2013 Overall length<\/td>\n3.15 in<\/td>\n80 mm<\/td>\n<\/tr>\n
Output shaft dia.<\/td>\n0.625 in<\/td>\n15.9 mm<\/td>\n<\/tr>\n
Input shaft dia.<\/td>\n0.375 in<\/td>\n9.5 mm<\/td>\n<\/tr>\n
Max input shaft radial load (Fr1)<\/td>\n\u2013<\/td>\n210 N<\/td>\n<\/tr>\n
Max output shaft radial load (Fr2)<\/td>\n\u2013<\/td>\n1,504 N<\/td>\n<\/tr>\n
Weight<\/td>\n\u2013<\/td>\n1.2 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Performance Data \u2014 EPNRV030 (n1 = 1,400 rpm)<\/h3>\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>\n0.6<\/td>\n18<\/td>\n597<\/td>\n150<\/td>\n<\/tr>\n
7.5<\/td>\n186.7<\/td>\n0.4<\/td>\n18<\/td>\n683<\/td>\n150<\/td>\n<\/tr>\n
10<\/td>\n140<\/td>\n0.3<\/td>\n18<\/td>\n752<\/td>\n169<\/td>\n<\/tr>\n
15<\/td>\n93.3<\/td>\n0.2<\/td>\n18<\/td>\n861<\/td>\n169<\/td>\n<\/tr>\n
20<\/td>\n70<\/td>\n0.2<\/td>\n18<\/td>\n948<\/td>\n190<\/td>\n<\/tr>\n
25<\/td>\n56<\/td>\n0.2<\/td>\n21<\/td>\n1021<\/td>\n210<\/td>\n<\/tr>\n
30<\/td>\n46.7<\/td>\n0.2<\/td>\n20<\/td>\n1085<\/td>\n210<\/td>\n<\/tr>\n
40<\/td>\n35<\/td>\n0.1<\/td>\n18<\/td>\n1194<\/td>\n210<\/td>\n<\/tr>\n
50<\/td>\n28<\/td>\n0.1<\/td>\n17<\/td>\n1286<\/td>\n210<\/td>\n<\/tr>\n
60<\/td>\n23.3<\/td>\n0.1<\/td>\n16<\/td>\n1367<\/td>\n210<\/td>\n<\/tr>\n
80<\/td>\n17.5<\/td>\n0.1<\/td>\n13<\/td>\n1504<\/td>\n210<\/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