Audible noise is evidence to investigate, but fault location depends on whether the sound tracks speed, torque or the machine structure.
Helical Gearbox Noise Diagnosis by Speed and Load
read more
EP-R67 Helical Gear Reducer – Industrial Inline Gearmotor
The EP-R67 inline helical gearmotor delivers up to 1,100 Nm output torque with a permitted radial load of 9,880 N, engineered for aggregate screening, wood processing, and heavy conveyor head drives. IP55. MOQ: 1–5 sample units; mixed orders from ~USD 1,500; lead time 10–25 working days.
EP-R67 Helical Gear Reducer – Industrial Inline Gearmotor
The EP-R67 inline helical gear reducer is the frame-67 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-R67 delivers maximum output torque of 1100 Nm and supports permitted radial loads up to 9,880 N N. Motor power compatibility spans from 0.12 kW through high-power configurations, with gear ratios ranging from i = 3.57 to i = 199.81. The EP-R67 is the natural choice for aggregate screening, heavy conveyors, wood processing 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.
With permitted radial loads up to 9,880 N and output torque reaching 1,100 Nm, the EP-R67 handles aggressive shock loads in aggregate, mining, and wood-processing applications that would overload smaller helical frames.
EP-R67 — standard foot-mount (R) inline helical gear reducer
Available Configurations
R67
Foot-mount, solid output shaft. Standard horizontal installation for conveyor, mixer, and industrial drives.
Foot-mount, solid output shaft. Standard horizontal installation for conveyor, mixer, and industrial drives.
RF67
Flange-mount output variant. The flanged housing mates directly to the driven machine's input face for alignment-free installation.
Flange-mount output variant. The flanged housing mates directly to the driven machine's input face for alignment-free installation.
R67 with Pre-stage
Two or three-stage combinations extending gear ratio coverage while maintaining the EP-R67 output shaft dimensions. Contact Ever Power for specific pre-stage options.
Two or three-stage combinations extending gear ratio coverage while maintaining the EP-R67 output shaft dimensions. Contact Ever Power for specific pre-stage options.
Technical Specifications
| Parameter | Value / Range |
|---|---|
| Frame Size | 67 |
| Motor Power Range | 0.12 kW – 160 kW (config.) |
| Gear Ratio (i) | 3.57 – 199.81 |
| Max Output Torque | 1100 Nm |
| Gear Unit Weight (foot/flange) | 31–32 kg / 34–35 kg |
| Max Permitted Radial Load | 9,880 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-R67
| Output Speed / Input Speed [rpm] | Output Torque [Nm] | Gear Ratio i | Radial Load [N] | Service Factor fB | Model |
|---|---|---|---|---|---|
| 676 | 5 | 2.15 | 6897 | 0.95 | RF67 |
| 576 | 6 | 2.52 | 7933 | 1.10 | RF67 |
| 519 | 7 | 2.80 | 8417 | 1.25 | RF67 |
| 459 | 7 | 3.16 | 8788 | 1.40 | R67 |
| 407 | 8 | 3.57 | 8997 | 1.55 | R67 |
| 219 | 14 | 6.63 | 9690 | 2.70 | R67 |
Mounting Positions M1–M6
Available mounting positions M1–M6 for the R-series (foot-mount models)
M1: Output shaft horizontal right — standard for conveyor and pump drives.
M2: Output shaft horizontal left — mirror-image installation.
M3: Shaft downward — agitators, thickener rakes, screw conveyors.
M4: Shaft upward — overhead drives, fan towers, elevated conveyors.
M5: Horizontal motor, angled shaft down — compact side-entry layouts.
M6: Horizontal motor, angled shaft up — inclined conveyor and upward feed drives.
Model Number Explanation
Model number designation — Ever Power R-series inline helical gearmotor
| Code Element | Meaning | Example |
|---|---|---|
| R | Inline helical gear series | R |
| F (optional) | Flange output; absent = foot mount | RF67 |
| 67 | Frame size designation | R67 |
| Pre-stage suffix | Additional gear stage for extended ratio | R67R77 |
Industry Applications
Heavy Conveyor Systems
Belt conveyors, apron conveyors, and bucket elevators in mining, quarrying, and bulk material handling facilities specify the EP-R67 for its high radial load capacity and reliable sealed lubrication.
Belt conveyors, apron conveyors, and bucket elevators in mining, quarrying, and bulk material handling facilities specify the EP-R67 for its high radial load capacity and reliable sealed lubrication.
Industrial Mixing & Processing
Reactor agitators, thickener rake drives, and large mixer drives benefit from the EP-R67's high starting torque and consistent speed characteristics under variable-viscosity loads.
Reactor agitators, thickener rake drives, and large mixer drives benefit from the EP-R67's high starting torque and consistent speed characteristics under variable-viscosity loads.
Aggregate Screening, Heavy Conveyors, Wood Processing
Applications in aggregate screening, heavy conveyors, wood processing environments rely on the EP-R67 for its combination of output torque, sealed maintenance-free operation, and multi-orientation mounting flexibility.
Applications in aggregate screening, heavy conveyors, wood processing environments rely on the EP-R67 for its combination of output torque, sealed maintenance-free operation, and multi-orientation mounting flexibility.
Customer Case Studies
Germany · Wood Processing Machinery
★★★★★
A German woodworking machinery manufacturer integrated EP-R67 gearmotors into their wide-belt sanding machine conveyor systems. High radial load capacity was essential for the multi-roller belt drive architecture. "We evaluated four suppliers. The EP-R67 was the only unit that met our torque and radial load specifications in the available installation space. After 30 months in production, all ten units are still running within original specification."
Turkey · Aggregate & Quarrying
★★★★★
A Turkish quarry operator installed EP-R67 drives on their vibrating screen drives, replacing bevel-helical units that had been failing prematurely due to shock loading. "The EP-R67 handles the vibration and intermittent overloads of screen drive service far better than our previous drives. We've had these units running for two full quarrying seasons without a single failure—an improvement from roughly one failure per season with our old units."
Poland · Paper & Pulp
★★★★☆
A Polish paper mill specified EP-R67 units for the wire-section drive of their paper machine rebuild project. Precise speed matching across multiple drive sections was required. "Speed stability with VFD control is excellent. We see less than 0.3% speed variation across the full production range, which has noticeably improved paper formation uniformity compared to our old DC drive system."
Frequently Asked Questions
Why Specify the EP-R67 from Ever Power?
Ever Power delivers the EP-R67 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-R67 Pricing, Datasheets & Application Support
Tell us your speed, torque, mounting, and environment requirements. Sample orders and mixed-model inquiries welcome.
Blogs Updated
Coupling Alignment for Inline Helical Gearbox Installations
Flexible couplings accommodate limited relative movement, but poor shaft alignment still affects bearings and seals.
Helical Gearbox Oil Leak Diagnosis and Seal Protection
Oil observed on a housing may have traveled from a vent, joint or shaft seal; finding the first wet point is essential.