{"id":1972,"date":"2026-04-17T09:00:11","date_gmt":"2026-04-17T09:00:11","guid":{"rendered":"https:\/\/planetary-gear-box.top\/product\/ever-power-ep-pr3065-planetary-gearbox-replacement-of-brevini-riduttori-pr3065\/"},"modified":"2026-04-17T09:00:11","modified_gmt":"2026-04-17T09:00:11","slug":"ever-power-ep-pr3065-planetary-gearbox-replacement-of-brevini-riduttori-pr3065","status":"publish","type":"product","link":"https:\/\/planetary-gear-box.top\/nl\/product\/ever-power-ep-pr3065-planetary-gearbox-replacement-of-brevini-riduttori-pr3065\/","title":{"rendered":"EVER POWER EP-PR3065 Planetary Gearbox Replacement Of Brevini Riduttori PR3065"},"content":{"rendered":"

EP-PR3065 Planetary Gearbox<\/h1>\n

EVER POWER 3-Stage Helical Planetary Gearbox ?? High Reduction for Precision Drives<\/p>\n

The EP-PR3065<\/strong> is EVER POWER’s 3-stage replacement for the Brevini riduttori PR3065. Combining a helical first and second stage<\/strong> with a straight-cut output stage, this unit achieves 11,000 Nm<\/strong> output torque with a ratio range extending to 120:1<\/strong> ?? covering slow-speed servo applications that a 2-stage unit cannot reach. Targeted at precision machine tools, semiconductor handling equipment, film winding systems and medical imaging drives<\/strong>.<\/p>\n

\"EP-PR3065<\/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-PR3065<\/td>\n<\/tr>\n
Replaces<\/td>\nBrevini riduttori PR3065<\/td>\n<\/tr>\n
Max Output Torque<\/td>\n11,000 Nm<\/td>\n<\/tr>\n
Gear Stages<\/td>\n3<\/td>\n<\/tr>\n
Ratio Range<\/td>\n25:1 – 120:1<\/td>\n<\/tr>\n
Max Input Speed<\/td>\n3,500 rpm<\/td>\n<\/tr>\n
Protection Class<\/td>\nIP65<\/td>\n<\/tr>\n
Approx. Weight<\/td>\n~34 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

Working Principle<\/h2>\n

\"EVER<\/p>\n

The first two helical stages reduce speed and amplify torque with minimal audible noise. The third straight-cut stage provides maximum torque density for the output. Pre-loaded angular contact bearing pairs<\/strong> on the input and output shafts eliminate axial play under reversal loads, which is critical for servo-driven applications that frequently change direction at high cycle rates.<\/p>\n

Core Advantages<\/h2>\n\n\n\n\n
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● ISO Class 4 Gear Accuracy<\/strong>
Highest accuracy in EVER POWER’s RPR range ?? minimum transmission error for precision axes.<\/div>\n<\/td>\n
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● Pre-Loaded P4 Bearings<\/strong>
Zero axial play under reversal ?? critical for high-cycle servo applications.<\/div>\n<\/td>\n<\/tr>\n
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● Helical Stages 1 and 2<\/strong>
Two helical stages provide very low noise ?? suitable for medical and clean-room environments.<\/div>\n<\/td>\n
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● 120:1 High Ratio<\/strong>
3-stage design covers very slow speed applications without large motor.<\/div>\n<\/td>\n<\/tr>\n
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● Direct PR3065 Replacement<\/strong>
Matching flange pattern ?? direct bolt-in fit.<\/div>\n<\/td>\n
<\/td>\n<\/tr>\n<\/table>\n

Structure and Material Technology<\/h2>\n

\"EVER<\/p>\n

All three stage housings are precision-bored from a single GGG50 ductile iron casting<\/strong>, ensuring perfect stage-to-stage axis alignment without separate alignment shims. Input and output shaft bearings are pre-loaded P4 accuracy angular contact pairs<\/strong>. Internal gear flanks are ground to ISO accuracy class 4 ?? the highest standard in EVER POWER’s RPR catalogue ?? for applications demanding minimum transmission error.<\/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
Semiconductor<\/td>\nWafer handler rotation axis<\/td>\nISO class 4 gear accuracy meets nanometre-level positioning requirements.<\/td>\n<\/tr>\n
Medical<\/td>\nMRI table positioning drive<\/td>\nUltra-low noise from helical stages is essential in quiet scan room environments.<\/td>\n<\/tr>\n
Film \/ Foil<\/td>\nPrecision winding tension control<\/td>\nPre-loaded bearings prevent axial play under frequent tension reversal.<\/td>\n<\/tr>\n
Optics<\/td>\nTelescope or antenna slew drive<\/td>\n120:1 ratio provides very slow precise angular movement from standard motor.<\/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 PR3065 vs. EVER POWER EP-PR3065<\/h2>\n

    Important Notice:<\/strong> EVER POWER references the Brevini riduttori PR3065 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-PR3065 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 PR3065<\/th>\nEVER POWER EP-PR3065<\/th>\n<\/tr>\n<\/thead>\n
    Price<\/td>\nOEM premium<\/td>\nCompetitive<\/td>\n<\/tr>\n
    Lead Time<\/td>\n6-12 weeks<\/td>\n2-4 weeks<\/td>\n<\/tr>\n
    Gear Accuracy<\/td>\nISO class 5<\/td>\nISO class 4 standard<\/td>\n<\/tr>\n
    Bearing Pre-load<\/td>\nNot standard<\/td>\nP4 pre-loaded 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