EP-R167 Inline Helical Gear Reducer – High Power Gearmotor
The EP-R167 inline helical gear reducer is the frame-167 model in Ever Power's industry-proven R-series inline helical gearmotor lineup. Designed for demanding industrial applications that require reliable, high-efficiency speed reduction with multi-orientation mounting flexibility, the EP-R167 delivers maximum output torque of 75,000 Nm and supports permitted radial loads up to 90,000 N N. Motor power compatibility spans from 0.18 kW through high-power configurations, with gear ratios ranging from i = 3.57 to i = 21,221. The EP-R167 is the natural choice for power stations, heavy mining, large-tonnage processing plants applications where performance, compactness, and low maintenance cost are all priorities. Browse the complete Ever Power gear reducer range or contact us for a tailored application review.
The EP-R167 is the pinnacle of the R-series inline helical platform, delivering 75,000 Nm peak output torque and a radial load capacity approaching 90,000 N in a fully catalogue-available product with standard IEC motor interfaces and sealed maintenance-free lubrication.
Available Configurations
Foot-mount, solid output shaft. Standard horizontal installation for conveyor, mixer, and industrial drives.
Flange-mount output variant. The flanged housing mates directly to the driven machine's input face for alignment-free installation.
Two or three-stage combinations extending gear ratio coverage while maintaining the EP-R167 output shaft dimensions. Contact Ever Power for specific pre-stage options.
Technical Specifications
| Parameter | Value / Range |
|---|---|
| Frame Size | 167 |
| Motor Power Range | 0.18 kW – 160 kW (config.) |
| Gear Ratio (i) | 3.57 – 21,221 |
| Max Output Torque | 75,000 Nm |
| Gear Unit Weight (foot/flange) | ~550 kg / ~590 kg |
| Max Permitted Radial Load | 90,000 N N |
| Mounting Positions | M1 – M6 |
| Lubrication | Synthetic gear oil, sealed for life |
| Protection Class | IP55 standard |
| Transmission Efficiency | > 96% per stage |
| Housing Material | Cast iron / die-cast aluminium |
Selection Parameter Table – EP-R167
| Output Speed / Input Speed [rpm] | Output Torque [Nm] | Gear Ratio i | Radial Load [N] | Service Factor fB | Model |
|---|---|---|---|---|---|
| 9694 | 13 | 0.15 | 67165 | 1.40 | R167 |
| 8751 | 14 | 0.17 | 67925 | 1.60 | R167 |
| 7706 | 16 | 0.19 | 68590 | 1.80 | R167 |
| 6628 | 18 | 0.22 | 69350 | 2.10 | R167 |
| 5779 | 20 | 0.26 | 69730 | 2.40 | R167 |
| 4322 | 27 | 0.35 | 70205 | 3.20 | R167R107 |
Mounting Positions M1–M6
Model Number Explanation
| Code Element | Meaning | Example |
|---|---|---|
| R | Inline helical gear series | R |
| F (optional) | Flange output; absent = foot mount | RF167 |
| 167 | Frame size designation | R167 |
| Pre-stage suffix | Additional gear stage for extended ratio | R167R77 |
Industry Applications
Belt conveyors, apron conveyors, and bucket elevators in mining, quarrying, and bulk material handling facilities specify the EP-R167 for its high radial load capacity and reliable sealed lubrication.
Reactor agitators, thickener rake drives, and large mixer drives benefit from the EP-R167's high starting torque and consistent speed characteristics under variable-viscosity loads.
Applications in power stations, heavy mining, large-tonnage processing plants environments rely on the EP-R167 for its combination of output torque, sealed maintenance-free operation, and multi-orientation mounting flexibility.
Customer Case Studies
A Chinese coal-fired power station installed EP-R167 gearmotors on the auxiliary drive systems for their large ID fan units. The requirement was for high-ratio, high-torque auxiliary positioning during maintenance outages. “Our previous auxiliary drives were custom-engineered hydraulic systems that required specialist servicing. The EP-R167 electric gearmotor solution standardised our maintenance procedure and eliminated the hydraulic system entirely, reducing our maintenance inventory and contractor dependency significantly.”
A Chilean copper processing plant commissioned EP-R167 drives on their SAG mill auxiliary positioning system. Torque output during barring operation was the critical specification. “The R167 handles the barring torque requirement for our 10,000-tonne SAG mill with a comfortable margin. The sealed inline helical design is far simpler to maintain than the external gear-and-pinion barring arrangement it replaced. We've run through two complete reline campaigns without a single drive-related delay.”
A South African engineering contractor selected EP-R167 gearmotors for a custom low-speed heavy-lift gantry crane drive. The torque density was critical for a constrained machine room space. “The EP-R167 gave us 75,000 Nm in a housing that occupied 40% less floor space than a conventional parallel-shaft industrial gear unit of equivalent torque. This was the design enabler for the whole gantry layout. Client acceptance was immediate.”
Frequently Asked Questions
What is the maximum output torque of the EP-R167?
What is the largest gear ratio available for the EP-R167?
How heavy is the EP-R167 gear unit?
What are the MOQ and lead time for EP-R167 orders?
Can the EP-R167 be used in an outdoor, exposed installation?
Why Specify the EP-R167 from Ever Power?
Ever Power delivers the EP-R167 inline helical gear reducer with full application engineering support, including selection assistance, 3D CAD data, dimensional drawings, and post-delivery commissioning guidance. Our technical team has experience across the industries described above and can advise on motor pairing, mounting configuration, and service factor selection for your specific application. Visit the Ever Power company page to learn more about our engineering approach, or go straight to the contact page to reach our technical sales team.
Request EP-R167 Pricing, Datasheets & Application Support
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