101-2572-009 Eaton Char-Lynn H Series Hydraulic Motor 96cc 2500 PSI

Product Overview

The 101-2572-009 is an Eaton Char-Lynn H Series low-speed, high-torque hydraulic motor featuring a spool valve Geroler design with a displacement of 96 cm³/rev (5.86 in³/rev). Built with a cast iron housing, this motor delivers 155 Nm (1372 in-lb) of rated torque at pressures up to 1800 PSI continuous and 2500 PSI intermittent. With a maximum speed of 585 RPM and a maximum flow rate of 15 GPM (57 LPM), it is engineered for demanding applications requiring reliable low-speed torque output.

This motor is manufactured to Eaton Char-Lynn original specifications and offers true drop-in interchangeability — no modification to mounting interfaces or port connections is required. Every unit undergoes 100% simulated working-condition testing before shipment, validating flow, pressure, speed, torque, and leakage performance to meet or exceed OEM specifications. The 101-2572-009 is widely used in agricultural machinery, industrial sweepers, and OEM equipment including CASE IH rotary screen drive systems.

Technical Specifications

• Model Number: 101-2572-009

• Full Model Code: MH0059TA18AA00A0000000001AA00J

• Brand Series: Eaton Char-Lynn H Series

• Motor Type: Spool Valve Geroler Motor

• Displacement: 96 cm³/rev (5.86 in³/rev)

• Rated Output Torque: 155 Nm (1372 in-lb) at rated pressure

• Maximum Continuous Pressure: 1800 PSI (124 bar)

• Maximum Intermittent Pressure: 2500 PSI (172 bar)

• Intermittent Peak Pressure: 165 bar

• Maximum Speed: 585 RPM

• Maximum Flow Rate: 15 GPM (57 LPM)

• Mounting Type: 2-Bolt Flange

• Output Shaft: Tapered with Woodruff Key

• Port Type: 7/8-14 UNF-2B SAE O-Ring, Side Port

• Housing Material: Cast Iron

• Rotation: Reverse

• Finish: Primer Low Gloss Black

• Pilot Diameter: 3.25 in

• Bolt Circle Diameter: 4.187 in

• Mounting Hole Size: 1/2-13 UNC-2B

（Specifications sourced from Eaton official product configurator and authorized distributor technical data）

Key Technical Advantages

1. Precision Geroler Gear Set
   The Geroler gear set is manufactured with high-precision grinding and optimized tooth profile parameters, delivering high volumetric efficiency and smooth torque output. The rotor set undergoes surface hardening treatment, maintaining excellent wear resistance under high-pressure conditions and significantly extending service life.

2. High-Strength Cast Iron Housing
   The motor housing is cast from premium-grade iron, offering superior structural rigidity and deformation resistance compared to aluminum housings. The cast iron construction withstands higher radial loads and system pressure fluctuations while providing better heat dissipation for stable oil temperature during continuous operation.

3. Spool Valve Distribution System
   The spool valve design features precision-machined valve spools and sleeves, enabling low-leakage, fast-response flow switching. This design maintains stable torque output even at low speeds, effectively preventing stick-slip behavior — ideal for applications requiring smooth low-speed drive performance.

4. Compact Design with High Power Density
   Delivering 155 Nm of rated torque from a 96 cm³/rev displacement, this motor achieves a power density that leads its class of Geroler motors. The compact form factor facilitates installation in space-constrained environments while maintaining full interchangeability with the H Series product family.

5. Long-Life Bearing System
   The integrated reinforced bearing system is precision preloaded and lubrication-optimized to handle continuous axial and radial loads. The extended-life bearing design minimizes maintenance frequency under rated operating conditions, reducing equipment downtime.

6. 100% Working-Condition Testing
   Every motor undergoes 100% simulated working-condition testing before shipment, covering flow, pressure, speed, torque, and leakage verification to ensure consistent performance and reliability of every delivered unit.

Application Areas

• Agricultural Machinery: Harvesters, seeders, agricultural auger drives

• Construction Equipment: Industrial sweepers, floor polishers, road maintenance vehicles

• Material Handling: Conveyor drives, rotary indexing mechanisms

• OEM Equipment: CASE IH and other brand rotary screen drive systems

Expert Maintenance Tips

1. Pre-Installation Inspection: Verify system oil cleanliness meets ISO 4406 18/16/13 or better before installation. Install a 10 μm or finer return-line filter to prevent particulate contamination from entering the motor and causing rotor set wear.

2. Initial Start-Up Bleeding: After first installation or motor replacement, operate at low pressure (not exceeding 500 PSI) for 5–10 minutes to bleed air from the system. Confirm no cavitation noise is present before gradually increasing to working pressure. Never apply full load before proper bleeding.

3. Oil Temperature Control: Maintain hydraulic oil temperature between 30°C and 60°C during continuous operation. Sustained temperatures above 80°C will accelerate seal degradation and reduce oil viscosity, leading to decreased volumetric efficiency.

4. Case Drain Monitoring: Periodically check case drain flow. A significant increase (more than double the normal value) indicates internal wear in the rotor set or distribution interface, requiring timely inspection or replacement.

5. Bolt Torque Re-Check: Re-torque mounting bolts at 50-hour and 500-hour service intervals to ensure fastening torque meets specifications and prevents loosening caused by vibration.