{"id":1751,"date":"2026-05-22T08:59:47","date_gmt":"2026-05-22T08:59:47","guid":{"rendered":"https:\/\/chinawormgearbox.xyz\/product\/epnrv050-shaft-input-aluminium-worm-reducer\/"},"modified":"2026-05-22T08:59:47","modified_gmt":"2026-05-22T08:59:47","slug":"epnrv050-shaft-input-aluminium-worm-reducer","status":"publish","type":"product","link":"https:\/\/chinawormgearbox.xyz\/pl\/product\/epnrv050-shaft-input-aluminium-worm-reducer\/","title":{"rendered":"EPNRV050 Shaft-Input Aluminium Worm Reducer"},"content":{"rendered":"
\n

EPNRV050 Shaft-Input Aluminium Worm Reducer \u2014 Overview<\/h2>\n

The EPNRV050 is the mid-range workhorse of Ever-power’s EPNRV shaft-input aluminium worm reducer series, purpose-built for packaging machinery retrofits, multi-speed food processing drive trains, and any application where the drive source is a chain sprocket, belt pulley, or flexible coupling rather than a direct IEC motor flange. At 3.5 kg and delivering up to 84 Nm at 30:1 ratio, the EPNRV050 integrates into existing machine frames where an NMRV motor-flange unit would require structural modification. Its 25 mm output shaft and four flange options give design engineers the connection flexibility expected of a modern industrial gearbox, without compromising on the compact, lightweight aluminium housing that makes the EPNRV series a market leader in shaft-input worm reducer applications.<\/p>\n

\"EPNRV050<\/div>\n

\n

EPNRV050 Technical Specifications<\/h2>\n

\"EPNRV050<\/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>\nEPNRV050<\/td>\n<\/tr>\n
Maximum Output Torque (M2)<\/td>\n84 Nm<\/td>\n<\/tr>\n
Maximum Output Radial Force (Fr2)<\/td>\n4280 N<\/td>\n<\/tr>\n
Maximum Input Shaft Radial Force (Fr1)<\/td>\n490 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>\n25 mm \/ 1.000 in<\/td>\n<\/tr>\n
Input Shaft Diameter<\/td>\n15.875 mm \/ 0.625 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>\n3.5 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>\n3.62 in<\/td>\n92 mm<\/td>\n<\/tr>\n
B \u2013 Body height<\/td>\n3.31 in<\/td>\n84 mm<\/td>\n<\/tr>\n
J \u2013 Overall length<\/td>\n4.76 in<\/td>\n121 mm<\/td>\n<\/tr>\n
Output shaft dia.<\/td>\n1.000 in<\/td>\n25.4 mm<\/td>\n<\/tr>\n
Input shaft dia.<\/td>\n0.625 in<\/td>\n15.9 mm<\/td>\n<\/tr>\n
Max input shaft radial load (Fr1)<\/td>\n\u2013<\/td>\n490 N<\/td>\n<\/tr>\n
Max output shaft radial load (Fr2)<\/td>\n\u2013<\/td>\n4,280 N<\/td>\n<\/tr>\n
Weight<\/td>\n\u2013<\/td>\n3.5 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n

Performance Data \u2014 EPNRV050 (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>\n2.0<\/td>\n62<\/td>\n1577<\/td>\n350<\/td>\n<\/tr>\n
7.5<\/td>\n186.7<\/td>\n1.6<\/td>\n71<\/td>\n1805<\/td>\n401<\/td>\n<\/tr>\n
10<\/td>\n140<\/td>\n1.2<\/td>\n72<\/td>\n1987<\/td>\n490<\/td>\n<\/tr>\n
15<\/td>\n93.3<\/td>\n0.9<\/td>\n74<\/td>\n2274<\/td>\n490<\/td>\n<\/tr>\n
20<\/td>\n70<\/td>\n0.7<\/td>\n73<\/td>\n2503<\/td>\n490<\/td>\n<\/tr>\n
25<\/td>\n56<\/td>\n0.5<\/td>\n70<\/td>\n2696<\/td>\n490<\/td>\n<\/tr>\n
30<\/td>\n46.7<\/td>\n0.6<\/td>\n84<\/td>\n2865<\/td>\n490<\/td>\n<\/tr>\n
40<\/td>\n35<\/td>\n0.4<\/td>\n76<\/td>\n3153<\/td>\n490<\/td>\n<\/tr>\n
50<\/td>\n28<\/td>\n0.3<\/td>\n73<\/td>\n3397<\/td>\n490<\/td>\n<\/tr>\n
60<\/td>\n23.3<\/td>\n0.3<\/td>\n68<\/td>\n3610<\/td>\n490<\/td>\n<\/tr>\n
80<\/td>\n17.5<\/td>\n0.2<\/td>\n65<\/td>\n3973<\/td>\n490<\/td>\n<\/tr>\n
100<\/td>\n14<\/td>\n0.2<\/td>\n55<\/td>\n4280<\/td>\n490<\/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