109-1319-006 Eaton Char-Lynn Hydraulic Motor 4000 Series

Product Overview

The 109-1319-006 is a core model in the Eaton Char-Lynn® 4000 Series of Low Speed High Torque (LSHT) orbital hydraulic motors, part of the Char-Lynn 4000 Series disc valve Geroler® motor product line. Since Char-Lynn became an Eaton brand in 1970, this series has accumulated over half a century of validated application in global industrial and mobile hydraulic markets.

The Eaton Char-Lynn 4000 Series covers displacements from 109.8 cm³/rev to 246.3 cm³/rev, offering nine displacement sizes, four mounting styles, and six different output shaft options. These motors can deliver more than 40 hp in a small package. Only three primary moving components—star, drive, and output shaft—are needed to transmit torque through the motor, yielding an extremely simple and reliable architecture. Shaft rotation can be instantly reversed by changing inlet/outlet flow while generating equal torque in either direction.

The 109-1319-006 achieves drop-in interchangeability with Eaton Char-Lynn 101, 103, 104, 105, 106, 109, 110, 111, 112, 113, 114, and 119 series, spanning from H Series (101-), S Series (103-), 2000 Series (104-, 105-, 106-) to 4000 Series (109-), 6000 Series (112-, 113-, 114-), and J Series (129-). Mounting flange, port positions, and output shaft specifications remain consistent with originals, enabling direct replacement without modifying piping or mounting brackets.

Every motor undergoes 100% simulated load testing before shipment, with protocols covering output torque verification at rated pressure, volumetric efficiency measurement at multiple speed points, internal leakage testing, and overspeed validation.

Technical Specifications 

Basic Specifications

• Model: 109-1319-006

• Motor Type: Low Speed High Torque (LSHT) Orbital Motor

• Product Series: Eaton Char-Lynn® 4000 Series

• Gear Set Type: Geroler® (roller gerotor)

• Valve System: Disc Valve

• Mounting Flange: Standard 4-Bolt SAE B (interchangeable with 2-bolt/4-bolt/wheel mount)

• Shaft Type: 1-1/4″ Keyed (standard), optional spline, tapered, and other configurations

• Port Size: #12 SAE O-Ring (staggered)

• Interchange Series: 101 / 103 / 104 / 105 / 106 / 109 / 110 / 111 / 112 / 113 / 114 / 119

• Design & Manufacture: USA (Eaton Hydraulics)

4000 Series Displacement Range (109-xxxx-006 Series)

• 109-1100-006: 109.8 cm³/rev [6.7 in³/rev], max flow 75.7 L/min [20 GPM], max speed 697 rpm, max pressure 207 bar [3000 psi]

• 109-1101-006: approx. 125 cm³/rev

• 109-1102-006: approx. 140 cm³/rev

• 109-1103-006: approx. 160 cm³/rev

• 109-1104-006: 246.3 cm³/rev [15.03 in³/rev], large displacement end of 4000 Series

• 109-1118-006: 246.3 cm³/rev [15.03 in³/rev], cast iron 4-bolt disc valve Geroler

• 109-1119-006: 40.6 cm³/rev [2.48 in³/rev] (VIS 40 specification)

• 109-1319-006: Displacement pending confirmation from Eaton official technical manual (positioned between 109-1100-006 and 109-1118-006)

4000 Series General Performance Range

• Max. Continuous Pressure: 207 bar (3000 psi)

• Max. Intermittent Pressure: 241 bar (3500 psi)

• Max. Continuous Flow: 75.7 L/min (20 GPM)

• Speed Range: 697 rpm (small displacement end) to approx. 300 rpm (large displacement end)

• Max. Output Power: Over 40 hp (approx. 30 kW)

• Primary Moving Components: Star, Drive, Output Shaft (only 3)

Materials & Construction

• Housing: High-strength cast iron

• Gear Set: Geroler® roller gerotor, carburized and hardened alloy steel

• Valve Plate: Disc valve, precision ground fit

• Bearings: Heavy-duty roller bearings, radial + axial load capable

• Seals: NBR standard, FKM optional

Key Technical Advantages

1. Minimalist Three-Component Drive Architecture with High Reliability

The core design philosophy of the Eaton Char-Lynn 4000 Series is structural minimalism. Only three primary moving components are needed to transmit torque: star, drive, and output shaft. This minimalist architecture dramatically reduces the number of kinematic pairs and potential failure points, enabling the motor to maintain extremely high operational reliability under harsh conditions. Shaft rotation can be instantly reversed by changing inlet/outlet flow, generating equal torque in either direction for applications requiring frequent reversal.

2. Geroler® Gear Set with High Volumetric Efficiency

The 4000 Series utilizes Eaton’s patented Geroler® (roller gerotor) gear set. Compared to conventional Gerotor designs, the introduction of roller pins converts sliding friction at the tooth profile engagement into rolling friction, significantly reducing internal friction losses and wear rates. The gear set’s engagement precision is controlled to micron-level tolerances, effectively suppressing internal leakage with volumetric efficiency consistently above 95%. The disc valve distribution structure is hydrodynamically optimized with progressive throttling in the pressure transition zone, effectively reducing pressure shock and flow pulsation during commutation.

3. Superior Power Density and Compact Package

The 4000 Series leads its class in power density, delivering more than 40 hp in a small package. The series covers nine displacement sizes, four mounting styles, and six output shaft options, offering equipment manufacturers exceptional selection flexibility. Low internal pressure drop design translates to high mechanical efficiency and greater flow capability, enabling higher power output within constrained installation spaces.

4. Broad Drop-In Interchangeability and System Compatibility

The 109-1319-006 achieves drop-in interchangeability with Eaton Char-Lynn 101, 103, 104, 105, 106, 109, 110, 111, 112, 113, 114, and 119 series, spanning from H Series (101-), S Series (103-), 2000 Series (104-, 105-, 106-) to 4000 Series (109-), 6000 Series (112-, 113-, 114-), and J Series (129-). Mounting flange, port positions, and output shaft specifications remain consistent with originals, enabling direct replacement without modifying piping or mounting brackets.

5. 100% Simulated Load Testing & Batch Consistency

Every 109-1319-006 motor undergoes 100% simulated load testing before shipment. Test protocols cover output torque verification at rated pressure, volumetric efficiency measurement at multiple speed points, internal leakage testing, overspeed validation, and noise assessment. All test data is archived and traceable, ensuring each motor’s performance matches its published specifications.

Application Areas

• Agricultural Machinery: Combine harvester reel drive, grain conveyor auger drive, fertilizer spreader drive

• Construction Equipment: Skid steer attachment drive, mini excavator swing drive

• Material Handling: Conveyor drives, small winch drives

• Turf Equipment: Commercial mower deck drive, golf course maintenance equipment

• Forestry Equipment: Wood chippers, timber cutting machine drives

• Municipal Vehicles: Street sweeper brush drive, snow removal equipment drive

• Industrial Machinery: Screw conveyors, automatic rotary indexing tables

Expert Maintenance Tips

1. Mounting Fit and Bolt Torque

Before installation, verify that the SAE B 4-bolt flange spigot and machine mounting bore conform to H8/f7 tolerance fit. Tighten mounting bolts in diagonal sequence in 2-3 stages to the specified torque. Use #12 SAE O-ring seals for port connections; recommended tightening torque is 55-65 N·m. When the motor is subject to side loads, ensure the machine mounting base has sufficient rigidity to withstand the reaction torque generated by motor output. For interchange scenarios with 101/103/104/105/106 series, verify the original motor’s mounting dimensions against the 109-1319-006 before installation.

2. Case Drain Piping

A case drain line is recommended for 4000 Series motors. The case drain must be piped separately to the reservoir—never connected in parallel with the main return line. Case drain back pressure should be maintained below 0.5 bar. Periodically inspect drain flow; a significant increase may indicate wear in the shaft seal or valve plate, requiring prompt shutdown and inspection. In open loop circuits where case pressure does not exceed 20 bar, the drain port may be optional, but installation is recommended to ensure system reliability.

3. System Flushing and Oil Cleanliness

After initial installation or motor replacement, operate at 200-400 rpm under no load for 10-15 minutes to purge air. System oil cleanliness should meet NAS 9 or ISO 18/15 or better. A 10 μm return-line filter is recommended. Hydraulic oils with anti-wear, anti-foam, and demulsifier additives are recommended, ISO VG 46 or VG 68 grade, with viscosity maintained between 20-75 mm²/s.

4. Storage and Extended Shutdown

For long-term storage, install port plugs to prevent contamination and fill the motor with clean hydraulic oil. Store at temperatures between -20°C and +50°C, away from direct sunlight and moisture. Motors stored for more than 6 months should undergo an internal leakage check before installation. For splined shaft models, pay particular attention to spline protection during storage—apply anti-rust grease to the splined section.