104-3154-006 Char-Lynn 2000 Series Motor 400cc 1840psi

Product Overview

The 104-3154-006 is the large-displacement flagship model in the Eaton/Char-Lynn 2000 Series of low-speed high-torque geroler hydraulic motors, featuring a geometric displacement of 400 cm³/rev with Geroler roller-stator and disc valve distribution. As a standard-duty 2000 Series unit, it delivers a maximum inlet pressure of 4500 psi, continuous working pressure of 1840 psi, continuous output torque of 3983 in-lb, and maximum continuous speed of 308 rpm at 20 gal/min continuous flow.

The 2000 Series is officially described by Eaton as the “lowest pressure drop motor in the industry,” employing a three-zone pressure design ensuring identical performance in both forward and reverse rotation. The cast iron housing provides excellent rigidity and durability, and the standardized 2-bolt mounting flange with 14-tooth splined output shaft allows flexible adaptation to various drive requirements.

This motor is a direct drop-in replacement for Eaton/Char-Lynn 2000 Series OEM motors of matching specification, with fully interchangeable mounting flange, shaft, and port locations. Every unit undergoes 100% simulated load-condition bench testing before shipment.

Series Model Notes: This batch covers multiple Char-Lynn 2000 Series models, all built on the disc valve and Geroler roller-stator technology architecture:

• 104-3154-006: 2000 Series large displacement, 400 cm³/rev, 2-bolt mounting flange, 14-tooth splined shaft, SAE-10 ports, max continuous speed 308 rpm

• 104-1730-006: 2000 Series mid displacement, 158.1 cm³/rev (9.65 in³/rev), 2-bolt SAE-A flange (3 1/4” pilot), 1.250” straight shaft with Woodruff key, SAE-12 ports, weight approx. 10.5 kg, for conveyors, winches, traction drives

• 104-1023-006: 2000 Series standard, 101.6 cm³/rev (6.2 in³/rev), 2-bolt SAE-A flange (3.25 in pilot), 1-1/4 in straight keyed shaft, 7/8-14 SAE O-ring ports, max inlet 4500 psi, continuous 3000 psi, rated torque 295 N·m, max speed 742 rpm, weight 42.0 lb

• 104-4385-006: 2000 Series, widely used in sugarcane harvester A8810/A9900 drive systems, 2-bolt flange, displacement 393.8 cm³/rev, max speed 191 rpm, flow 75 L/min

Technical Specifications

104-3154-006 (2000 Series)

• Model: 104-3154-006 (Eaton/Char-Lynn 2000 Series)

• Series: 2000 Series; Standard Mount Motor

• Displacement: 400 cm³/rev

• Max Continuous Pressure: 1840 psi (approx. 127 bar)

• Max Inlet Pressure: 4500 psi (310 bar)

• Continuous Output Torque: 3983 in-lb (approx. 450 N·m)

• Max Continuous Speed: 308 rpm @ 20 gal/min

• Max Flow: 75 L/min (20 gal/min)

• Control Type: Disc valve distribution; bidirectional rotation; speed infinitely adjustable via hydraulic flow

• Mounting Flange: 2-bolt SAE-A, 82.6 mm (3.25 in) pilot diameter

• Mounting Hole Size: 13.59 mm (0.535 in)

• Output Shaft: 14-tooth splined

• Port Size: SAE-10, 7/8-14 UNF, side ports staggered

• Case Drain: 0.4375-20 UNF-2B SAE O-ring port

• Material: Cast iron housing

• Weight: Reference 2000 Series equivalent approx. 42.0 LB

Data source: Xeriwell distributor technical data and Fremont Industrial Supply product data. Simultaneous operation at maximum speed and maximum pressure is not permitted.

104-1730-006 (2000 Series)

• Model: 104-1730-006 (Eaton/Char-Lynn 2000 Series)

• Series: 2000 Series; Standard Mount Motor

• Displacement: 158.1 cm³/rev (9.65 in³/rev)

• Working Pressure: 205 bar

• Max Flow: 75 L/min

• Control Type: Disc valve distribution; bidirectional rotation

• Mounting Flange: 2-bolt SAE-A, 82.55 mm (3 1/4”) pilot diameter

• Output Shaft: 1.250 in straight with Woodruff key

• Port Size: 1.0625-12 UN-2B SAE O-ring, ports oriented 180° to each other

• Case Drain: 0.4375-20 UNF-2B SAE O-ring port

• Seal Type: Standard seals

• Recommended Fluid: Anti-wear hydraulic oil, viscosity 100-200 SUS or 20-43 CST

• Material: Cast iron housing

• Weight: Approx. 10.5 kg

• Applications: Conveyors, winches, traction drives, augers, irrigation/utility cable reel

Data source: Froedge product page and Hidraoil distributor technical data.

104-1023-006 (2000 Series)

• Model: 104-1023-006 (Eaton/Char-Lynn 2000 Series)

• Series: 2000 Series; Standard Mount Motor

• Displacement: 101.6 cm³/rev (6.2 in³/rev)

• Max Inlet Pressure: 4500 psi (310 bar)

• Continuous Working Pressure: 3000 psi (207 bar)

• Intermittent Max Pressure: 310 bar

• Output Torque at Rated PSI: 295 N·m (2611 in-lb)

• Max Speed: 742 rpm @ 20 gal/min continuous flow

• Max Flow: 75 L/min (20 gal/min)

• Control Type: Disc valve distribution; bidirectional rotation

• Mounting Flange: 2-bolt SAE-A, 82.55 mm (3.25 in) pilot diameter, 106.4 mm (4.19 in) bolt circle

• Output Shaft: 1-1/4 in × 5/16 in straight keyed

• Port Size: 7/8-14 UNF-2B SAE O-ring, side ports staggered

• Case Drain: 0.4375-20 UNF-2B SAE O-ring port

• Material: Cast iron housing

• Weight: 42.0 LB (approx. 19.1 kg)

• Applications: Swing motor, brush cutters & mowers, harvesting equipment

Data source: Applied Industrial Technologies (applied.com) and Eaton PowerSource official product page.

104-4385-006 (2000 Series)

• Model: 104-4385-006 (Eaton/Char-Lynn 2000 Series)

• Series: 2000 Series

• Displacement: 393.8 cm³/rev

• Max Speed: 191 rpm

• Max Flow: 75 L/min

• Control Type: Disc valve distribution; bidirectional rotation

• Mounting Flange: 2-bolt, 82.6 mm (3.25 in) pilot diameter, 13.59 mm (0.535 in) mounting holes, 106.4 mm (4.19 in) bolt circle

• Output Shaft: Splined

• Port Size: .875-14 UNF-2B SAE O-ring

• Seal Type: High-pressure shaft seal

• Recommended Operating Temperature: -34°C to 82°C

• Recommended Viscosity: 70 SUS

• Material: Cast iron housing, environmentally coated black

• Applications: Sugarcane harvester A8810/A9900 drives, swing motors, brush cutters & mowers, harvesting equipment

Data source: Xeriwell distributor technical data.

Key Technical Advantages

1. Industry-Lowest Pressure Drop Disc Valve Technology

The entire 2000 Series (104-3154-006, 104-1730-006, 104-1023-006, 104-4385-006) employs the signature Char-Lynn disc valve architecture, officially described by Eaton as the “lowest pressure drop motor in the industry.” The valve plate and rotor end face feature automatic wear compensation, maintaining tight contact over extended service life. Compared to conventional shaft-distribution designs, the disc valve structure significantly reduces throttling losses during oil distribution, substantially improving system energy efficiency.

2. Three-Zone Pressure Design for True Bi-Directionality

The 2000 Series features a three-zone pressure design, ensuring identical performance in forward and reverse rotation with no reversal shock or torque asymmetry. This characteristic derives from precise control of the three-zone pressure distribution within the valve plate, maintaining stable output characteristics in applications requiring frequent direction changes while extending service life.

3. High-Efficiency Geroler Roller-Stator for Energy Savings

All models employ a precision Geroler roller-stator set in which rolling columns travel along the stator curve, dramatically reducing internal friction losses compared to conventional gear-type configurations. The 104-1023-006 delivers 295 N·m of rated torque at 101.6 cm³/rev displacement, while the 104-3154-006 delivers approximately 450 N·m of continuous torque at 400 cm³/rev displacement — power density that leads its class among medium-displacement orbit motors.

4. Cast Iron Housing and High Power Density

The entire 2000 Series features cast iron housings for excellent rigidity and durability. Standardized 2-bolt mounting flanges and multiple shaft options (straight keyed, splined) allow flexible adaptation across different drive requirements. The 104-1023-006 and 104-1730-006 offer standard, wheel, and bearingless mounting configurations.

Application Areas

• Agricultural Machinery: Sugarcane harvester drives (104-4385-006), harvesting equipment, brush cutters & mowers (104-1023-006)

• Material Handling: Conveyor drives (104-1730-006), winch and hoist mechanisms, auger drives

• Municipal & Environmental Equipment: Snow removal drives, street sweeper brush drives

• Construction Equipment: Traction drives (104-1730-006), swing motors (104-1023-006)

• Industrial Drives: Irrigation/utility cable reel drives (104-1730-006), specialty production line rotary mechanisms

Expert Maintenance Tips

Installation Guidelines:

• Before installation, verify system oil cleanliness meets ISO 18/13 or better. The disc valve face is sensitive to particulate contamination — install a 10μm filter upstream of the motor inlet.

• The 104-3154-006 uses a 2-bolt SAE-A flange (82.6 mm pilot) and 14-tooth splined shaft. Ensure the pilot and equipment interface surfaces are clean and flat during installation. Apply a light film of grease to the spline mating surface to prevent fretting corrosion.

• The 104-1730-006 uses a 1.250 in straight shaft with Woodruff key. Use a flexible coupling; shaft alignment must be within 0.05mm.

• The 104-1023-006 uses a 1-1/4 in straight keyed shaft with 2-bolt SAE-A flange (3.25 in pilot). Note port orientation compatibility with hydraulic line connections during installation.

• All models include a standard case drain port (0.4375-20 UNF-2B SAE O-ring). Route the drain line separately back to the reservoir, maintaining case pressure below the shaft seal rating. During initial commissioning, a 30-minute no-load break-in at 30% of rated pressure is recommended.

Operational Maintenance:

• Use premium anti-wear hydraulic oil with viscosity maintained at 20-43 CST (100-200 SUS). Normal operating oil temperature should not exceed 82°C.

• Inspect volumetric efficiency every 2,000 hours or every 12 months. If efficiency drops by more than 10% of rated value, disassemble and inspect the disc valve plate and Geroler roller-stator assembly.

• Periodically inspect equipment-end shaft support wear and ensure alignment remains within tolerance.