{"id":888,"date":"2026-06-25T09:01:13","date_gmt":"2026-06-25T09:01:13","guid":{"rendered":"https:\/\/nmrv063gearbox.com\/product\/ep-nrv050-aluminium-worm-gearbox\/"},"modified":"2026-06-25T09:01:13","modified_gmt":"2026-06-25T09:01:13","slug":"ep-nrv050-aluminium-worm-gearbox","status":"publish","type":"product","link":"https:\/\/nmrv063gearbox.com\/ta\/product\/ep-nrv050-aluminium-worm-gearbox\/","title":{"rendered":"EP-NRV050 Aluminium Worm Gearbox"},"content":{"rendered":"

EP-NRV050 — Shaft-Input Heavy-Duty Aluminium Worm Gear Reducer<\/h2>\n

The EP-NRV050<\/strong> is the shaft-input sibling of the NMRV050, delivering the same 4,280 N·m maximum output torque and 1.1 kW input power rating in the same die-cast aluminium housing, but configured with a solid keyed input shaft in place of a bore-input IEC flange. This makes the NRV050 the definitive choice for applications where power arrives via chain, belt, or direct coupling from a non-IEC source — PTO-driven agricultural machinery, hydraulic motor outputs, engine-driven equipment, and custom industrial machinery where the drive geometry places the power source away from the IEC motor position. In Australian agriculture, the NRV050 powers grain-dryer fan conveyor drives, heavy auger systems, and irrigation pump speed reducers connected to engine or electric motor outputs via roller chain. In industrial settings, it finds application in central-line-shaft factory layouts, batch conveyor drives for food and chemical processing, and specialist OEM machinery. The NRV050’s 25 mm output bore, IP54 protection, and six mounting positions deliver the same heavy-duty performance envelope as the NMRV050, ensuring no compromise on output capability despite the different input configuration.<\/p>\n

\"EP-NRV050<\/p>\n

Technical Specifications — EP-NRV050<\/h2>\n

\"NRV050<\/p>\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
Series<\/td>\nNRV (Solid Shaft Input, No Input Flange)<\/td>\n<\/tr>\n
Centre Distance<\/td>\n50 mm<\/td>\n<\/tr>\n
Reduction Ratios<\/td>\n5, 7.5, 10, 15, 20, 25, 30, 40, 50, 60, 80, 100<\/td>\n<\/tr>\n
Rated Input Power<\/td>\nUp to 1.1 kW<\/td>\n<\/tr>\n
Output Speed Range<\/td>\n14 to 280 r\/min (at 1400 r\/min input)<\/td>\n<\/tr>\n
Max Output Torque<\/td>\n4,280 N·m<\/td>\n<\/tr>\n
Input Type<\/td>\nSolid shaft input, no IEC flange<\/td>\n<\/tr>\n
Housing Material<\/td>\nDie-cast aluminium alloy<\/td>\n<\/tr>\n
Worm Wheel Material<\/td>\nPhosphor bronze<\/td>\n<\/tr>\n
Worm Shaft Material<\/td>\n20CrMnTi alloy steel, case hardened, ground<\/td>\n<\/tr>\n
Output Bore Diameter<\/td>\n25 mm standard (H7 with keyway)<\/td>\n<\/tr>\n
Lubrication<\/td>\nISO VG 220 gear oil (factory filled)<\/td>\n<\/tr>\n
Mounting Positions<\/td>\nB3, B6, B7, B8, V5, V6<\/td>\n<\/tr>\n
Protection Class<\/td>\nIP54<\/td>\n<\/tr>\n
Ambient Temperature<\/td>\n-10°C to +40°C<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n
\n

NRV050 Performance Table (1.1 kW \/ 1400 r\/min)<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
Ratio (i)<\/th>\nOutput Speed (r\/min)<\/th>\nOutput Torque (N·m)<\/th>\nService Factor (fs)<\/th>\n<\/tr>\n<\/thead>\n
7.5<\/td>\n187<\/td>\n683<\/td>\n2.3<\/td>\n<\/tr>\n
10<\/td>\n140<\/td>\n752<\/td>\n1.8<\/td>\n<\/tr>\n
15<\/td>\n93<\/td>\n861<\/td>\n1.3<\/td>\n<\/tr>\n
20<\/td>\n70<\/td>\n948<\/td>\n1.0<\/td>\n<\/tr>\n
30<\/td>\n47<\/td>\n1,085<\/td>\n1.0<\/td>\n<\/tr>\n
40<\/td>\n35<\/td>\n2,475<\/td>\n2.1<\/td>\n<\/tr>\n
50<\/td>\n28<\/td>\n2,865<\/td>\n2.3<\/td>\n<\/tr>\n
60<\/td>\n23<\/td>\n3,153<\/td>\n1.7<\/td>\n<\/tr>\n
80<\/td>\n18<\/td>\n3,610<\/td>\n1.6<\/td>\n<\/tr>\n
100<\/td>\n14<\/td>\n4,280<\/td>\n1.4<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n