{"id":881,"date":"2026-06-25T09:01:06","date_gmt":"2026-06-25T09:01:06","guid":{"rendered":"https:\/\/nmrv063gearbox.com\/product\/ep-nmrv075-aluminium-worm-gearbox\/"},"modified":"2026-06-25T09:01:06","modified_gmt":"2026-06-25T09:01:06","slug":"ep-nmrv075-aluminium-worm-gearbox","status":"publish","type":"product","link":"https:\/\/nmrv063gearbox.com\/nn\/product\/ep-nmrv075-aluminium-worm-gearbox\/","title":{"rendered":"EP-NMRV075 Aluminium Worm Gearbox"},"content":{"rendered":"

EP-NMRV075 — High-Torque Aluminium Worm Gear Reducer<\/h2>\n

The EP-NMRV075<\/strong> aluminium worm gearbox steps into the high-torque segment of Ever Power’s NMRV series with a 75 mm centre distance, 4.0 kW maximum input power, and a peak output torque of 6,603 N·m at ratio 100. Where the NMRV063 handles medium-duty print and conveyor tasks, the NMRV075 is built for applications with higher torque demands: heavy mixing tanks in chemical and food-ingredient processing, steep-incline agricultural conveyors, construction material handling equipment, and large industrial automation stages that combine a 2.2–4.0 kW motor with a high reduction ratio for very slow output speeds. A defining feature of the NMRV075 over the NMRV063 is its larger 35 mm standard output bore and the expanded IEC flange range extending to 100\/112B14, accommodating the full 3.0–4.0 kW motor frame range. Like all NMRV series units, the NMRV075 is manufactured in die-cast aluminium alloy with a precision-ground worm and phosphor-bronze wheel, supported by dual-lip shaft seals for leak-free operation across all six mounting orientations — an important consideration for inclined-conveyor and mixer-shaft installations common in Australian food and agriculture industries.<\/p>\n

\"EP-NMRV075<\/p>\n

Technical Specifications — EP-NMRV075<\/h2>\n

\"NMRV075<\/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>\nNMRV (Bore Input with Input Flange)<\/td>\n<\/tr>\n
Centre Distance<\/td>\n75 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 4.0 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>\n6,603 N·m<\/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, precision ground<\/td>\n<\/tr>\n
IEC Input Flanges<\/td>\n71B5, 80B5, 80B14, 90B5, 90B14, 100\/112B14<\/td>\n<\/tr>\n
Output Bore Diameter<\/td>\n35 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

NMRV075 Performance Table (4.0 kW \/ 1400 r\/min)<\/p>\n\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>\nRadial Load (N)<\/th>\nService Factor (fs)<\/th>\n<\/tr>\n<\/thead>\n
7.5<\/td>\n187<\/td>\n2,785<\/td>\n99<\/td>\n1.9<\/td>\n<\/tr>\n
10<\/td>\n140<\/td>\n3,065<\/td>\n131<\/td>\n1.5<\/td>\n<\/tr>\n
15<\/td>\n93<\/td>\n3,509<\/td>\n178<\/td>\n1.1<\/td>\n<\/tr>\n
20<\/td>\n70<\/td>\n3,882<\/td>\n\u2014<\/td>\n1.1<\/td>\n<\/tr>\n
25<\/td>\n56<\/td>\n4,273<\/td>\n\u2014<\/td>\n1.0<\/td>\n<\/tr>\n
30<\/td>\n47<\/td>\n4,421<\/td>\n233<\/td>\n1.0<\/td>\n<\/tr>\n
40<\/td>\n35<\/td>\n4,865<\/td>\n222<\/td>\n1.5<\/td>\n<\/tr>\n
50<\/td>\n28<\/td>\n5,241<\/td>\n\u2014<\/td>\n1.2<\/td>\n<\/tr>\n
60<\/td>\n23<\/td>\n5,569<\/td>\n\u2014<\/td>\n1.0<\/td>\n<\/tr>\n
80<\/td>\n18<\/td>\n5,799<\/td>\n196<\/td>\n1.9<\/td>\n<\/tr>\n
100<\/td>\n14<\/td>\n6,603<\/td>\n94<\/td>\n1.9<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/div>\n