OMV500 151B3102 Danfoss Hydraulic Orbital Motor LSHT 500cc

Product Overview

The Danfoss OMV Series is a low-speed, high-torque (LSHT) orbital hydraulic motor featuring advanced geroler gear set technology with a disc valve distribution system, delivering high starting torque, smooth operation, superior volumetric efficiency, and exceptional load capacity.

The OMV Series offers displacements from 314.5 cm³/rev to 801.8 cm³/rev with pressure ratings up to 275 bar (3,990 psi). This page covers key models under the OMV500 designation including 151B3102, 151B3107, 151B2152, 151B3308, and 151B2190—all featuring a geometric displacement of 499.6 cm³/rev, with continuous torque output up to 1,460 Nm and intermittent torque up to 1,760 Nm.

The 151B3102 features a 50 mm cylindrical shaft; the 151B3107 features a Z16 splined shaft (16 teeth, 53.97 mm OD); the 151B2152 features a 2.25-inch (57.1 mm) cylindrical shaft; while the 151B3308 and 151B2190 offer additional shaft and flange configuration options.

As a premium aftermarket alternative to original Danfoss OMV Series orbital motors, this product is manufactured to strict Danfoss OEM specifications, ensuring 100% interchangeability with original equipment—direct bolt-on replacement with zero modification required. Every motor undergoes 100% simulated load testing prior to shipment to verify performance and reliability under rated operating conditions.

Technical Specifications 

OMV500 Common Core Parameters (Applicable to All 151B Series Models)

• Product Series: Danfoss OMV Series Orbital Hydraulic Motor

• Geometric Displacement: 499.6 cm³/rev (30.49 in³/rev)

• Maximum Continuous Speed: 400 rpm

• Maximum Intermittent Speed: 480 rpm

• Maximum Continuous Torque: 1,460 Nm (12,920 lb-in)

• Maximum Intermittent Torque: 1,760 Nm (15,580 lb-in)

• Maximum Continuous Pressure Drop: 200 bar (2,900 psi)

• Maximum Intermittent Pressure Drop: 240 bar (3,480 psi)

• Maximum Peak Pressure Drop: 280 bar (4,060 psi)

• Maximum Continuous Inlet Pressure: 210 bar (3,050 psi)

• Maximum Intermittent Inlet Pressure: 250 bar (3,630 psi)

• Maximum Peak Inlet Pressure: 300 bar (4,350 psi)

• Maximum Continuous Oil Flow: 200 L/min (52.8 GPM)

• Maximum Intermittent Oil Flow: 240 L/min (63.4 GPM)

• Maximum Continuous Output Power: 53.5 kW (71.7 HP)

• Maximum Intermittent Output Power: 64.0 kW (85.8 HP)

• Minimum Starting Torque at Continuous Pressure: 1,130 Nm

• Minimum Starting Torque at Intermittent Pressure: 1,360 Nm

• Design Type: Geroler with disc valve distribution

• Control Type: Bi-directional rotation, hydraulic control

• Mounting Flange: 4-bolt square flange, centering diameter 160 mm, bolt circle 200 mm

• Weight: Approx. 33.5 kg

Model-Specific Configurations

151B3102 (OMV 500 Cylindrical Shaft Standard)

• Shaft Type: 50 mm cylindrical shaft

• Keyway: A14 x 9 x 70 mm (DIN 6885)

• Port Size: G 1″

• Drain Port Size: G 1/4″

• Mounting Flange: Standard 4-bolt flange, centering diameter 160 mm

151B3107 (OMV 500 Splined Shaft)

• Shaft Type: Z16 splined shaft (16 teeth, 53.97 mm / 2-1/8″ OD)

• Mounting Flange: A4 standard 4-bolt flange

151B2152 (OMV 500 Large Diameter Cylindrical Shaft)

• Shaft Type: 2.25-inch (57.1 mm) cylindrical shaft

• Keyway Width: 12.7 mm

• Port Size: 1-5/16″-12 UN

• Drain Port Size: 9/16″-18 UNF

151B3308 (OMV 500 Multi-Configuration)

• Geometric Displacement: 499.6 cm³/rev

• Typical Application: Sandvik QI440/441 crusher hydraulic drive

151B2190 (OMV 500 SAE C Flange)

• Geometric Displacement: 499.6 cm³/rev

• Mounting Flange: SAE C flange

• Weight: 29 kg

• Shaft Type: 2-1/8″ splined shaft

Key Technical Advantages

1. Advanced Geroler Gear Set & Disc Valve Distribution
The OMV Series features geroler gear set technology with a disc valve distribution system—rollers run within the rotor set, significantly reducing friction losses. The disc valve ensures superior volumetric efficiency and smooth low-speed operation, maintaining constant operating torque even at extremely low speeds.

2. High-Pressure Shaft Seal – High Return Pressure Without Drain Line
The OMV Series is equipped with a high-pressure shaft seal, enabling high return pressure without the use of a drain line. This innovative design greatly simplifies hydraulic circuit layout, reducing installation complexity and potential leak points.

3. Superior Radial & Axial Bearing Capacity
The OMV Series utilizes tapered roller bearings, delivering excellent radial and axial load capacity. This allows direct mounting to wheels, sprockets, or drive mechanisms without additional support bearings, and the motors are suitable for both open and closed-loop hydraulic systems.

4. Smooth Operation & Constant Torque Over Wide Speed Range
The OMV Series delivers smooth operation across a broad speed range with constant operating torque throughout. High starting torque makes it particularly suitable for heavy-duty propulsion and rotary drive applications requiring frequent start-stop operation.

5. Multiple Shaft & Flange Configurations – Maximum Flexibility
The OMV500 Series offers a wide range of shaft options (cylindrical, splined) and flange configurations (standard 4-bolt, SAE C) to accommodate various OEM interface requirements.

6. Premium Materials & Manufacturing Standards
OMV Series motors feature high-strength cast iron housings with precision-ground geroler gear sets. Every unit is manufactured to strict Danfoss OEM specifications, ensuring 100% interchangeability with original equipment.

Application Areas

• Construction Equipment: Skid steer loader propulsion, compact track loader (CTL) traction drives

• Road Construction Equipment: Sandvik QI440/441 mobile crusher hydraulic drives

• Agricultural Machinery: Large self-propelled sprayers, combine harvester traction drives

• Material Handling Equipment: Forklifts, telescopic handlers, AGV drive wheels

• Forestry Equipment: Feller bunchers, forwarder traction drives

• Lawn & Turf Equipment: Large zero-turn mowers, golf course maintenance equipment

• Industrial Equipment: Winches, augers, mixer drives

Expert Maintenance Tips

Installation Guidelines:

1. Model Verification: Before installation, verify the motor model and physical dimensions on the original equipment. This series includes multiple models including 151B3102 (50 mm cylindrical shaft), 151B3107 (Z16 splined shaft), 151B2152 (2.25-inch cylindrical shaft), 151B3308, and 151B2190—different models vary in shaft type, flange configuration, and port sizes. Ensure correct model selection.

2. Fluid Cleanliness: Maintain system fluid cleanliness to ISO 4406 22/20/16 minimum. Inlet fluid must pass through 10μm absolute filtration. Recommended oil viscosity range is 20 – 75 cSt. Geroler motors are sensitive to fluid contamination—insufficient cleanliness will directly impact gear set life and volumetric efficiency.

3. Case Pressure & Drain Port Management: Although the OMV Series features a high-pressure shaft seal that eliminates the need for a drain line in many applications, a G 1/4″ drain port is provided. When return pressure exceeds 140 bar (continuous) / 175 bar (intermittent), the drain line must be connected to protect the shaft seal.

4. Shaft Alignment: Precise alignment between motor output shaft and driven load is critical. Misalignment significantly reduces tapered roller bearing life and increases side loading.

5. Mounting Bolt Torque: Mounting bolts must be torqued to Danfoss-specified values and re-torqued after initial operation.

Routine Maintenance:

1. Leak Inspection: Regularly inspect housing and shaft seal areas for oil seepage. Replace seals immediately if leakage is detected.

2. Fluid Change Interval: Initial fluid change at 100 hours, thereafter every 1000 operating hours or annually, whichever comes first.

3. Operating Duty Monitoring: Operate motors within continuous duty ratings. Intermittent duty (maximum 10%/minute) and peak duty (maximum 1%/minute) are permitted for short durations only.

4. Vibration & Noise Monitoring: If abnormal vibration or increased noise is detected during operation, shut down immediately for inspection to identify potential geroler gear set wear or bearing damage.

5. Ambient Temperature Limits: The OMV Series allows an ambient temperature range of -30°C to +90°C.