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EP-RPR2065 Planetary Gearbox
EVER POWER 2-Stage Mid-Compact Planetary Gearbox for Precision Industrial Drives
The EP-RPR2065 steps up from the RPR046 series with a larger planet module, delivering 6,500 Nm output torque in a mid-compact 2-stage housing. As a direct replacement for Brevini riduttori RPR2065, it serves medium automation, medical equipment drives, precision machine tools and servo-driven material handling systems where torque is greater but installation space remains restricted.
Technical Parameters
| Parameter | Value |
|---|---|
| Model | EP-RPR2065 |
| Replaces | Brevini riduttori RPR2065 |
| Max Output Torque | 6,500 Nm |
| Gear Stages | 2 |
| Ratio Range | 18:1 – 70:1 |
| Max Input Speed | 3,800 rpm |
| Protection Class | IP65 |
| Approx. Weight | ~26 kg |
Working Principle
The EP-RPR2065 uses a 2-stage helical planet arrangement ?? helical teeth provide a higher contact ratio than straight-cut gears at equivalent module, reducing noise and vibration at the high input speeds typical of servo motor applications. Input speed up to 3,800 rpm is accepted on the SAE motor flange. Output is via a precision-ground solid or hollow shaft to suit belt-drive or direct-coupled loads.
Core Advantages
|
◼ Helical Planet Gears
Higher contact ratio ?? measurably lower noise and vibration vs straight-cut. |
◼ Solid or Hollow Output Shaft
Hollow shaft fits directly on drive screws; solid shaft for belt or coupling drives. |
|
◼ 3,800 rpm Input Speed
Compatible with high-speed servo and vector-controlled motors. |
◼ FKM Seals
Synthetic oil compatible at up to 120 degC ?? suitable for high-ambient automation cabinets. |
|
◼ Direct RPR2065 Fit
Same mounting pattern as original Brevini unit. |
Structure and Material Technology
Housing is precision-cast from GGG50 ductile iron, finish-machined to H6 bore tolerance. Helical planet gears use 17CrNiMo6 carburised and ground steel, tooth profile accuracy ISO 5. The output shaft is 42CrMo4 through-hardened, providing high bending stiffness for cantilevered load applications. Seals are FKM fluoroelastomer for compatibility with synthetic oils at temperatures up to 120 degC.
Typical Application Scenarios
| Industry | Application | Key Requirement |
|---|---|---|
| Machine Tool | Servo-driven turret indexing | Low noise and precise positioning for CNC tooling carousel rotation. |
| Medical | Patient table positioning drive | Smooth quiet operation and self-locking brake for safe patient positioning. |
| Printing | Print drum drive | Helical gearing reduces print artefacts caused by gear mesh vibration. |
| Automation | Precision pick-and-place Z-axis | Hollow shaft option mounts directly on screw shaft without separate coupling. |
Selection Guide
- Required Output Torque (Nm) ?? Confirm peak and continuous torque requirement with appropriate safety factor.
- Gear Ratio ?? Motor speed (rpm) divided by required output speed (rpm).
- Duty Cycle ?? Continuous S1 or intermittent S3/S6; affects thermal de-rating.
- Motor Interface ?? Flange type (SAE/ISO), shaft diameter, keyway or spline specification.
- Environment ?? IP class, ambient temperature, corrosion zone, orientation.
Contact our engineering team for a free application sizing review.
Brevini RPR2065 vs. EVER POWER EP-RPR2065
Important Notice: EVER POWER references the Brevini riduttori RPR2065 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-RPR2065 is an independently designed and manufactured product that is dimensionally and functionally compatible.
| Aspect | Brevini RPR2065 | EVER POWER EP-RPR2065 |
|---|---|---|
| Price | OEM premium | Competitive |
| Lead Time | 6-12 weeks | 2-4 weeks |
| Planet Gear Type | Straight-cut | Helical ?? lower noise |
| Shaft Option | Solid only | Solid or hollow |
| Warranty | 12 months | 18 months |
EVER POWER also supplies matched electric and hydraulic motors for complete drive system packages. Enquire about motor pairing.
Quality Certifications and Service Commitment
- ISO 9001:2015 certified manufacturing and quality management.
- CE Marking ?? EU Machinery Directive 2006/42/EC compliant.
- 18-month warranty from shipment date on all EP-RPR2065 units.
- Technical response within 48 hours for field issues.
- Spare parts and seal kits stocked for rapid dispatch.
Learn more at EVER POWER About Us.
Case Studies ?? Engineer Field Notes
| Country | Application | Feedback |
|---|---|---|
| Switzerland | CNC turret indexing drive replacement, medical equipment maker | “Noise reduction from helical gearing was the deciding factor. Audible noise dropped 5 dB, meeting our clean-room specification.” ?? Lead Engineer, Zurich. |
| USA | Patient table Z-axis drive, hospital equipment manufacturer | “Self-locking feature for patient safety was confirmed by our safety team. EVER POWER provided a test certificate within 48 hours.” ?? Project Manager, Boston. |
| Taiwan | Precision pick-and-place Z-axis, electronics SMT line | “Hollow shaft eliminated the shaft coupling entirely. Positioning repeatability improved from +-0.12 mm to +-0.06 mm.” ?? Automation Engineer, Hsinchu. |
Frequently Asked Questions
Q: Is the hollow shaft option compatible with standard ball screws?
A: Yes. The hollow bore accepts standard metric ball screw shaft ends. Specify bore diameter and keyway at order.
Q: What noise level reduction does the helical stage provide?
A: In our production testing, helical gears reduce peak mesh noise by 4-7 dB versus straight-cut at equivalent module and speed.
Partner With EVER POWER
EVER POWER supports OEM machine builders, engineering contractors and maintenance teams worldwide. Browse our full replacement range, explore our manufacturing capabilities, or contact us today for a fast quotation. Visit planetary-gear-box.top for the complete EVER POWER portfolio.
