{"id":1977,"date":"2026-04-17T09:00:11","date_gmt":"2026-04-17T09:00:11","guid":{"rendered":"https:\/\/planetary-gear-box.top\/product\/ever-power-ep-rpr2255-planetary-gearbox-replacement-of-brevini-riduttori-rpr2255\/"},"modified":"2026-04-17T09:00:11","modified_gmt":"2026-04-17T09:00:11","slug":"ever-power-ep-rpr2255-planetary-gearbox-replacement-of-brevini-riduttori-rpr2255","status":"publish","type":"product","link":"https:\/\/planetary-gear-box.top\/it\/prodotto\/ever-power-ep-rpr2255-planetary-gearbox-replacement-of-brevini-riduttori-rpr2255\/","title":{"rendered":"EVER POWER EP-RPR2255 Planetary Gearbox Replacement Of Brevini Riduttori RPR2255"},"content":{"rendered":"

EP-RPR2255 Planetary Gearbox<\/h1>\n

EVER POWER 2-Stage Industrial Planetary Gearbox with Integrated Cooling Flange<\/p>\n

The EP-RPR2255<\/strong> is a closely related variant to the RPR2250 series, incorporating an integrated cooling fin array on the output flange<\/strong> that increases passive heat dissipation by 18% versus a plain flange ?? a valuable feature for enclosed machinery installations where forced air cooling is not available. Replacing Brevini riduttori RPR2255, this unit delivers 26,500 Nm<\/strong> output torque for enclosed pump drives, marine gearrooms, underground machinery and thermally constrained industrial equipment<\/strong>.<\/p>\n

\"EP-RPR2255<\/p>\n

Technical Parameters<\/h2>\n\n\n\n\n\n\n\n\n\n\n\n\n
Parameter<\/th>\nValue<\/th>\n<\/tr>\n<\/thead>\n
Model<\/td>\nEP-RPR2255<\/td>\n<\/tr>\n
Replaces<\/td>\nBrevini riduttori RPR2255<\/td>\n<\/tr>\n
Max Output Torque<\/td>\n26,500 Nm<\/td>\n<\/tr>\n
Gear Stages<\/td>\n2<\/td>\n<\/tr>\n
Ratio Range<\/td>\n22:1 – 90:1<\/td>\n<\/tr>\n
Max Input Speed<\/td>\n2,800 rpm<\/td>\n<\/tr>\n
Protection Class<\/td>\nIP66<\/td>\n<\/tr>\n
Approx. Weight<\/td>\n~70 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Working Principle<\/h2>\n

\"EVER<\/p>\n

The 2-stage planetary layout is identical to the RPR2250 in gear geometry. The differentiating feature is the cooling fin flange<\/strong> ?? cast integrally into the output end bell, its extended surface area conducts frictional heat from the oil sump to ambient air by natural convection. In enclosed spaces, this passive cooling reduces steady-state oil temperature by 8-12 degC, extending synthetic lubricant service life proportionally.<\/p>\n

Core Advantages<\/h2>\n\n\n\n\n
\n
◼ Integrated Cooling Fin Flange<\/strong>
18% more passive heat dissipation ?? reduces oil temperature 8-12 degC without external cooling.<\/div>\n<\/td>\n
\n
◼ Aluminium Fin + Iron Housing<\/strong>
Best of both materials ?? aluminium thermal conductivity, iron structural strength.<\/div>\n<\/td>\n<\/tr>\n
\n
◼ FKM High-Temp Seals<\/strong>
Synthetic oil service at up to 130 degC ?? suitable for hot enclosed installations.<\/div>\n<\/td>\n
\n
◼ 2-Stage High Efficiency<\/strong>
Minimises heat generation at source in thermally constrained installations.<\/div>\n<\/td>\n<\/tr>\n
\n
◼ Direct RPR2255 Replacement<\/strong>
Same mounting interface as original Brevini unit.<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n<\/table>\n

Structure and Material Technology<\/h2>\n

\"EVER<\/p>\n

Housing material is GGG50 ductile iron<\/strong>; the cooling fin flange is a separate EN-AC 46000 aluminium alloy<\/strong> casting bolted to the output end, combining aluminium’s superior thermal conductivity with the structural strength of the iron housing. Planet gears use 17CrNiMo6 carburised and ground<\/strong> steel. Seals are FKM fluoroelastomer<\/strong> for high-temperature synthetic oil service.<\/p>\n

Typical Application Scenarios<\/h2>\n\n\n\n\n\n\n\n\n
Industry<\/th>\nApplication<\/th>\nKey Requirement<\/th>\n<\/tr>\n<\/thead>\n
Marine<\/td>\nEngine room pump drive, no external cooling<\/td>\nFin flange provides essential passive cooling in enclosed engine room.<\/td>\n<\/tr>\n
Underground<\/td>\nMine dewatering pump drive<\/td>\nPassive cooling avoids need for forced-air ducting in confined drives.<\/td>\n<\/tr>\n
Oil & Gas<\/td>\nEnclosed wellhead pump gearbox<\/td>\n8-12 degC oil temperature reduction extends lubricant service interval.<\/td>\n<\/tr>\n
Industrial<\/td>\nPrinting press main drive in enclosed cabinet<\/td>\nPassive cooling maintains oil temperature within limits without cabinet fans.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Selection Guide<\/h2>\n
    \n
  1. Required Output Torque (Nm)<\/strong> ?? Confirm peak and continuous torque requirement with appropriate safety factor.<\/li>\n
  2. Gear Ratio<\/strong> ?? Motor speed (rpm) divided by required output speed (rpm).<\/li>\n
  3. Duty Cycle<\/strong> ?? Continuous S1 or intermittent S3\/S6; affects thermal de-rating.<\/li>\n
  4. Motor Interface<\/strong> ?? Flange type (SAE\/ISO), shaft diameter, keyway or spline specification.<\/li>\n
  5. Environment<\/strong> ?? IP class, ambient temperature, corrosion zone, orientation.<\/li>\n<\/ol>\n

    Contact our engineering team<\/a> for a free application sizing review.<\/p>\n

    Brevini RPR2255 vs. EVER POWER EP-RPR2255<\/h2>\n

    Important Notice:<\/strong> EVER POWER references the Brevini riduttori RPR2255 model number solely to assist customers in identifying a compatible replacement. We do not manufacture, sell, or claim any affiliation with Brevini. No trademarks or intellectual property of Brevini are reproduced or infringed. Our EP-RPR2255 is an independently designed and manufactured product that is dimensionally and functionally compatible.<\/p>\n\n\n\n\n\n\n\n\n\n
    Aspect<\/th>\nBrevini RPR2255<\/th>\nEVER POWER EP-RPR2255<\/th>\n<\/tr>\n<\/thead>\n
    Price<\/td>\nOEM premium<\/td>\nCompetitive<\/td>\n<\/tr>\n
    Lead Time<\/td>\n8-14 weeks<\/td>\n3-5 weeks<\/td>\n<\/tr>\n
    Cooling Fin Flange<\/td>\nNot standard<\/td>\nIntegrated standard<\/td>\n<\/tr>\n
    Seal Grade<\/td>\nStandard NBR<\/td>\nFKM high-temp std<\/td>\n<\/tr>\n
    Warranty<\/td>\n12 months<\/td>\n18 months<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \"EVER
    \nEVER POWER also supplies matched electric and hydraulic motors<\/strong> for complete drive system packages. Enquire about motor pairing.<\/a><\/p>\n

    Quality Certifications and Service Commitment<\/h2>\n