Hydraulic Gear Motor Replacement | Rexroth SNM2 SNM2NN SNM2DN Series

Genlu Hydraulic proudly introduces our SNM/SNU Series high-performance hydraulic gear motors. As a classic component in fluid power transmission, this series is renowned for its compact dimensions, excellent volumetric efficiency, and uncompromising reliability. Our products are engineered to Bosch Rexroth SNM technical standards, covering the full spectrum of SNM2, SNM2NN, SNM2DN, SNU2NN, SNM2JN, and SNU2GN configurations, with precision fitment for complex models like GESNM2NN/011BN06GA and M6WE5E5NNNN/NNNNN. Genlu unequivocally guarantees 100% Drop-in Interchangeability in flange connections, shaft geometries, port configurations, and pressure ratings relative to Rexroth original standards. Backed by our uncompromising 100% Simulation Load Testing, each unit is validated for volumetric efficiency, start-up torque, and high-pressure sealing before dispatch, ensuring relentless power delivery for your compact integrated hydraulic systems.

Technical Specifications 

• Product Series: Rexroth SNM/SNU Series Hydraulic Gear Motor

• Configuration Coverage: SNM2, SNU2, SNM2NN, SNM2DN, SNM2JN, SNU2GN

• Representative Models: GESNM2NN/011BN06GA, M6WE5E5NNNN/NNNNN

• Rated Operating Pressure: Up to 25 MPa

• Speed Range: 500 – 3500 rpm

• Displacement: Various configurations available

• Structural Configuration: High-strength alloy/cast iron housing, pressure-balanced side plates

• Mounting Standard: Internationally standardized flange interface

Key Technical Advantages:

• Exceptional Volumetric Efficiency: Precision gear profile correction and pressure-balanced side plate design maintain superior sealing across the entire speed range, minimizing internal leakage and ensuring consistent torque output.

• Compact & High-Density Design: Engineered for space-constrained modern mobile machinery, these motors offer excellent power-to-weight ratios, saving valuable installation space without sacrificing performance.

• Superior Shock-Load Resilience: Internal gears are treated with advanced anti-fatigue heat processes and supported by reinforced bearing systems, effectively withstanding pressure spikes from frequent start-stop cycles.

• Fluid Compatibility: Equipped with high-performance seals compatible with mainstream mineral hydraulic fluids, providing excellent wear resistance, particularly in high-frequency duty cycles.

Application Areas:

• Integrated Industrial Power Units: Compact power packs and automated turntable drives.

• Mobile Machinery: Agricultural seeders, auxiliary propulsion, and mixing drives.

• Material Handling: Conveyor drives, small lifting, and hoisting equipment.

• Municipal Utility Vehicles: Sanitation operation support and specialized hydraulic power sources.

Expert Maintenance Tips:

• Case Drain Protocol: For high-pressure duty cycles, ensure an independent case drain line is utilized to prevent excessive housing pressure, which can lead to premature shaft seal degradation.

• Fluid Cleanliness Management: Precision clearances require strict adherence to cleanliness standards. We recommend 20μm (or finer) return-line filtration, maintaining ISO 4406 18/16/13.

• Commissioning Sequence: Perform a minimum of 10 minutes of no-load cycling after installation to purge trapped air. Operating with air in the system leads to vibration and acoustic noise. Never start under full load if the system has not been properly purged.