Eaton Char-Lynn 2K Series Hydraulic Motor | 2K-160 2K-195 2K-245 | Disc Valve Geroler Motor

The 2K (2000 Series) and 6K Series hydraulic motors by Chengyuan Hydraulic are high-torque power units engineered for full compatibility with Eaton Char-Lynn industrial standards. Featuring advanced Disc Valve technology and the Geroler® orbit mechanism, this range includes core displacements such as 2K-160, 2K-195, and 2K-245, as well as specific OEM models like 604-1056. Compared to standard spool valve motors, the 2K series offers significantly lower internal leakage and higher mechanical efficiency under high-pressure differentials. As a premier interchangeable solution, every motor provides 100% original-place interchangeability and undergoes 100% simulated condition testing to ensure exceptionally smooth Low-Speed High-Torque (LSHT) performance.

Technical Specifications :

• Core Models: 2K-80, 2K-100, 2K-130, 2K-160, 2K-195, 2K-245, 2K-305

• Displacement Range: $80\text{ cc/rev}$ to $305\text{ cc/rev}$

• Max Continuous Pressure: $20.5\text{ MPa (205 bar / 3000 psi)}$

• Max Intermittent Pressure: $31\text{ MPa (310 bar / 4500 psi)}$

• Max Torque: Up to $850\text{ N·m (7500 lb-in)}$

• Max Speed: $400\text{ to } 900\text{ rpm}$

• Shaft Options: $32\text{mm}$ Straight, $14$-Tooth Spline, Tapered Shafts

• Mounting: Standard $2$-bolt or $4$-bolt SAE Flange

Key Technical Advantages:

• Advanced Disc Valve Design: The distribution valve, independent of the drive shaft, is hydrostatically balanced to compensate for thermal expansion and wear. This maintains high volumetric efficiency at high pressures, reducing system heat and ensuring steady output at low speeds.

• Geroler® Technology: By incorporating precision rollers in the star-and-ring assembly, startup friction is minimized while wear resistance is maximized. This results in high starting torque (reaching over $85\%$ of rated torque) and a significantly longer service life in heavy-duty cycles.

• Heavy-Duty Bearing Capacity: Equipped with large-capacity tapered roller bearings, the 2K series can withstand significant radial and axial loads. This allows the motor to directly drive sprockets, gears, or wheels without the need for external bearing supports.

• High-Pressure Shaft Seal: Features a premium imported high-pressure shaft seal capable of handling backpressures up to $15\text{ MPa}$ without an external drain line, enhancing the reliability of series-connected motor circuits.

Application Areas:

• Mobile Drives: Track drives for sweepers, lawnmowers, and mini-excavators.

• Auxiliary Systems: Auger drives for plastic machinery and reel drives for harvesters.

• Industrial Conveyance: Power for industrial conveyor belts and heavy-duty AGVs (Automated Guided Vehicles).

Expert Maintenance Tips:

• Backpressure Management: While the shaft seal is rated for high pressure, maintaining low backpressure is recommended for maximum seal life. For high-pressure series circuits, always connect the case drain.

• Fluid Filtration: We recommend a filtration rating of $10\text{ to } 25\mu\text{m}$. Orbit motors are sensitive to large particles; maintaining oil cleanliness prevents scoring of the disc valve and subsequent power loss.

• Initial Lubrication: Before the first start or after long periods of downtime, fill the motor case with clean hydraulic oil to ensure instantaneous lubrication of all internal components upon startup.