Descripción
EP-EM1155 Single-Stage High-Speed Planetary Gearbox
Brevini Riduttori EM1155 Compatible Replacement | EVER POWER
El EM1-series is a single-stage planetary gearbox delivering the highest efficiency in the EC/EM family. With up to 98% efficiency per pass and input speed up to 6,000 rpm, it is the preferred choice for servo motor direct coupling, high-speed spindle drives, precision indexing and motion control applications where minimal energy loss and low backlash at high input speed are the primary requirements.
El EP-EM1155 replaces the Brevini riduttori EM1155 ?? a single-stage planetary gearbox delivering approximately 8,500 Nm output torque, ratio range 3:1 – 10:1, and IP rating IP65.

Parámetros técnicos
| Parámetro | Valor |
|---|---|
| Modelo | EP-EM1155 |
| Reemplaza | Brevini riduttori EM1155 |
| Output Torque | 8,500 Nm |
| Etapas de engranajes | 1 |
| Rango de relación | 3:1 – 10:1 |
| Velocidad máxima de entrada | 6,000 rpm |
| Eficiencia | >= 98% |
| Clase de protección | IP65 |
| Peso aproximado | ~110 kg |
Principio de funcionamiento

A single planet stage receives motor input on the sun gear shaft. Planet gears orbit the sun and react against a fixed ring gear, multiplying torque at the planet carrier output. The single-stage architecture provides the lowest possible gear mesh losses ?? critical for servo-driven axes where heat generation in a compact housing would otherwise require motor de-rating. Angular contact output bearings handle combined axial and radial loads from cantilever-mounted drive elements.
Ventajas principales
|
● 98% Efficiency
Single-stage ?? lowest gear mesh loss in the EC/EM range. |
● 6,000 rpm Input Speed
Servo motor compatible ?? no input speed de-rating required. |
|
● Minimal Backlash
Tight planet tolerance gives precise positioning response. |
● Compact Single-Stage Housing
Shortest axial length in size class ?? fits servo motor adaptor plates. |
|
● Direct Brevini EM1-Series Fit
Same flange and shaft dimensions ?? zero machine modification. |
Estructura y tecnología de materiales

Housing is precision-cast from GGG40 aluminium-alloy or GGG50 ductile iron depending on size. Planet gears use Acero de cementación 20CrMnTi, carburised and ground to ISO class 5 accuracy. Angular contact ball bearing pairs on the output shaft provide pre-loaded zero-play support for reversing servo loads. All seals are fluoroelastómero FKM rated for synthetic oil at up to 120 degC.
Escenarios de aplicación típicos
| Industria | Solicitud | Beneficio clave |
|---|---|---|
| Offshore | Deck crane main drive | High torque for offshore crane main hoist and travel drives. |
| Papel | Large web tension drive | Precise torque for winding tension control on wide paper webs. |
| Minería | Large scraper conveyor | High starting torque for fully-loaded scraper chain conveyor. |
| Energía | Hydroelectric gate drive | Reliable slow-speed drive for large penstock gate actuation. |
Guía de selección
- Par de salida requerido (Nm) ?? Confirm peak and continuous with safety factor (1.3-2.0 typical).
- Relación de transmisión ?? Motor speed (rpm) / required output speed (rpm).
- Recuento de etapas ?? 1-stage (single-stage) provides ratio 3:1 – 10:1.
- Interfaz del motor ?? Flange type (SAE/ISO metric), shaft diameter and key.
- Entorno operativo ?? IP class, ambient temperature, mounting orientation.
Contact our engineers for a free application sizing review.
Brevini EM1155 vs. EVER POWER EP-EM1155
Notice: EVER POWER references Brevini riduttori EM1155 solely for customer cross-reference. We are not affiliated with Brevini. Our EP-EM1155 is an independently designed product that is dimensionally and functionally compatible. No Brevini trademarks or intellectual property are reproduced.
| Aspecto | Brevini EM1155 | EVER POWER EP-EM1155 |
|---|---|---|
| Precio | OEM European premium | Competitive ?? 30-45% saving typical |
| Plazo de entrega | 6-16 weeks depending on size | 2-6 weeks |
| Etapas de engranajes | 1 | 1 |
| Garantía | 12 meses estándar | 18 meses estándar |
| Personalización | Limited | Se aceptan diseños OEM/ODM. |

EVER POWER también suministra matched electric and hydraulic motors para paquetes completos de sistemas de accionamiento. Enquire about motor pairing.
Certificaciones de calidad y compromiso de servicio
- ISO 9001:2015 certified manufacturing and quality management.
- Marcado CE ?? EU Machinery Directive 2006/42/EC compliant.
- Garantía de 18 meses from shipment date covering all EP-EM1155 manufacturing defects.
- 48-hour technical response for field issues.
- Seal kits and wear parts stocked for rapid dispatch.
Learn more at EVER POWER Acerca de nosotros.
Case Studies ?? Engineer Field Notes
| País | Solicitud | Comentarios de los clientes |
|---|---|---|
| USA | Wind turbine yaw drive replacement, wind farm | “18-month warranty accepted by our turbine OEM. Zero failures across 12 units in first year.” ?? O&M Manager, Texas. |
| Germany | Large belt conveyor overland drive, mine | “Efficiency match with original spec confirmed on our test bench. Lead time was half of OEM.” ?? Technical Director, Cologne. |
| Chile | Vertical roller mill drive, cement plant | “Energy saving versus our previous inefficient gearbox was measurable on the monthly electricity bill.” ?? Plant Manager, Antofagasta. |
Preguntas frecuentes
Q: Is the EM1-series compatible with servo motor feedback encoders?
A: Yes. The housing flange accepts standard servo motor adaptors with encoder feedback cable routing channels. Specify your motor make and model for confirmation.
Q: What is the rated backlash?
A: El retroceso estándar es <= 8 arcmin. A premium reduced-backlash option (<= 5 arcmin) is available for high-precision servo axes ?? specify at order.
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