Danfoss OMSS Series Motor | OMSS200 151F0539 OMSS160 151F5159 | Short Orbit Motor

Danfoss OMSS Series Short/Bearingless Heavy-Duty Orbit Motors

Product Overview: The Danfoss OMSS Series (151F- sequence) is a heavy-duty orbital hydraulic motor engineered for maximum space efficiency. This page highlights core integration models: OMSS 200 (151F0539) and OMSS 160 (151F5159). Featuring a specialized Short Motor design, the OMSS series is built without output bearings, allowing for direct mounting into gearboxes or planetary reducers. Powered by Disc Valve technology, the OMSS series provides massive torque within an ultra-short envelope, making it the premier choice for construction propel drives, planetary gear integration, heavy-duty winches, and marine propulsion systems.

Key Technical Advantages:

• Ultra-Compact Short Design: Designed for embedded installation, leveraging the host machine’s bearing support to drastically reduce weight and save critical installation space.

• High-Efficiency Disc Valve: The independent valve plate automatically compensates for pressure-induced clearances, ensuring superior volumetric efficiency and precise power delivery even under high-pressure pulses.

• Geroler® Roller Geometry: Incorporates roller contacts in the gear set to minimize internal friction, delivering pulse-free, ultra-smooth performance in Low Speed High Torque (LSHT) conditions.

• High Back-Pressure Resilience: Specifically optimized internal circuitry allows the motor to handle significant back-pressures, simplifying overall hydraulic system design.

• Technical Decoding:

  • 151F0539 (OMSS 200): Official Danfoss part number representing displacement specifics and gearbox interface standards.

  • 151F5159 (OMSS 160): Optimized frame for applications requiring higher rotation speeds in a compact integrated package.

Detailed Specifications & Parameters:

• Core Series: Danfoss OMS Series (Short Version – OMSS).

• Featured Model Matrix: OMSS200 (151F0539), OMSS160 (151F5159).

• Core Performance Specs:

  • Displacement: 160.8 cc/rev (OMSS 160) / 200 cc/rev (OMSS 200).

  • Max Operating Pressure: Continuous up to 210 Bar (3050 PSI); intermittent peaks up to 250 Bar.

  • Torque Capability: OMSS 160 (Continuous 470 Nm) / OMSS 200 (Continuous 590 Nm).

  • Max Speed: Up to 470 RPM (OMSS 160) and 375 RPM (OMSS 200).