Product Overview
The 105-1141-006 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 393.8 cm³/rev (24.03 in³/rev) with Geroler roller-stator and disc valve distribution. This model belongs to the 2000 Series Wheel Mount Motor configuration, featuring a 4-bolt flange, maximum inlet pressure of 4500 psi (310 bar), and rated output torque of 6859 in-lb (approx. 775 N·m).
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. The 2000 Series employs a three-zone pressure design ensuring identical performance in both forward and reverse rotation. Every unit undergoes 100% simulated load-condition bench testing before shipment.
Series Model Notes: This batch covers multiple Char-Lynn 2000 Series and VIS 30 Series models, all built on the disc valve and Geroler roller-stator technology architecture:
105-1141-006: 2000 Series large-displacement wheel mount motor, 393.8 cm³/rev, 4-bolt wheel flange, rated torque 6859 in-lb
105-1169-006: 2000 Series, 235 N·m, max flow 75 L/min, max speed 908 rpm, wheel mount, cast iron housing, 1-1/16-12 UN-2B SAE ports
161-0035-005: Belongs to Eaton VIS 30 Series (Valve-In-Star), commonly used in Bobcat skid-steer loader drive systems. The VIS 30 Series employs patented Valve-In-Star technology. Consult Eaton official manuals for specific displacement and pressure data
Drop-in interchange solutions are available for all the above models. Contact our technical engineers to confirm specific model compatibility.
Technical Specifications
105-1141-006 (2000 Series)
Model: 105-1141-006 (Eaton/Char-Lynn 2000 Series)
Series: 2000 Series; Wheel Mount Motor
Displacement: 393.8 cm³/rev (24.03 in³/rev)
Max Inlet Pressure: 4500 psi (310 bar)
Max Speed: 191 rpm @ 20 gal/min continuous flow
Output Torque at Rated PSI: 6859 in-lb (approx. 775 N·m)
Continuous Flow: 75 L/min (20 gal/min)
Mounting Flange: 4-bolt wheel flange, 108.0 mm (4.25 in) pilot diameter, 147.6 mm (5.81 in) bolt circle, 127.0 mm (5.00 in) rear mount pilot
Output Shaft: 31.75 mm (1.250 in) straight keyed with 0.375-16 UNC-2B thread in end
Port Size: G 1/2 BSPP, side ports staggered
Case Drain: 0.4375-20 UNF-2B SAE O-ring port
Control Type: Disc valve distribution; bidirectional rotation; speed infinitely adjustable via hydraulic flow
Material: Cast iron housing
Weight: Approx. 15.0 kg
Data source: Applied Industrial Technologies (applied.com), Motion Canada product page, and Hidraoil distributor technical data. Simultaneous operation at maximum speed and maximum pressure is not permitted. Maximum operating oil temperature: 82°C (180°F).
105-1169-006 (2000 Series)
Model: 105-1169-006 (Eaton/Char-Lynn 2000 Series)
Series: 2000 Series; Wheel Mount Motor
Max Flow: 75 L/min (20 gal/min)
Max Speed: 908 rpm
Output Torque: 235 N·m
Mounting: Wheel mount, 4-bolt
Output Shaft: Straight keyed
Port Size: 1.0625-12 UN-2B SAE ports
Control Type: Disc valve distribution; bidirectional rotation
Material: Cast iron housing
Weight: Reference 2000 Series equivalent
Data source: Raptorsupplies distributor technical data. Consult the Eaton PowerSource official product page for specific displacement and pressure data.
161-0035-005 (VIS 30 Series)
Model: 161-0035-005 (Eaton/Char-Lynn VIS 30 Series)
Series: VIS 30 (Valve-In-Star)
Application: Commonly used in Bobcat skid-steer loader drive systems (paired with 161-0085-005)
Control Type: Patented Valve-In-Star distribution; integrated distribution mechanism; bidirectional rotation
Technical Features: The VIS 30 Series integrates distribution directly within the Geroler set, eliminating the separate valve plate for higher pressure capability and a more compact package
Specific displacement, pressure, and mounting dimensions: Consult Eaton official manuals
Data source: Accio.com product listings and Eaton VIS 30 Series official catalog. The 161-0035-005 is a VIS 30 Series model; this series offers five displacements: 246, 323, 397, 492, and 623 cm³/rev.
Key Technical Advantages
1. Three-Zone Pressure Design for True Bi-Directionality
The 2000 Series (105-1141-006, 105-1169-006) features the signature Char-Lynn 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.
2. Industry-Lowest Pressure Drop Disc Valve Technology
The 2000 Series 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.
3. High-Efficiency Geroler Roller-Stator for Energy Savings
All series 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. Combined with the disc valve’s low pressure drop, the motors maintain superior volumetric and mechanical efficiency under rated conditions. The 105-1141-006 delivers up to 6859 in-lb (approx. 775 N·m) of continuous torque at 393.8 cm³/rev displacement, delivering measurable energy savings for equipment builders.
4. Cast Iron Housing and High Power Density
The 105-1141-006 and 105-1169-006 both feature cast iron housings, providing excellent rigidity and durability. The 2000 Series large-displacement models (such as the 105-1141-006) deliver up to 25 hp in a compact package. Standardized 4-bolt wheel mount flanges and multiple shaft options (straight keyed, splined) allow flexible adaptation across different drive requirements.
Application Areas
Municipal & Environmental Equipment: Snow removal auger drives, street sweeper brush drives
Agricultural Machinery: Combine harvester drive systems, tractor implement drives, spraying equipment
Construction Equipment: Excavator swing drives, skid-steer loader travel systems (161-0035-005 for Bobcat models)
Wood Products: Woodworking machinery feed drives, debarker drives
Material Handling: Conveyor drives, winch and hoist mechanisms
Industrial Drives: Specialty production line rotary mechanisms, machine tool hydraulic clamping drives
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 105-1141-006 uses a 4-bolt wheel mount flange with 108.0 mm pilot diameter and 147.6 mm bolt circle. Ensure the pilot and equipment interface surfaces are clean and flat during installation. The output shaft is 31.75 mm straight keyed with a threaded end; shaft alignment must be within 0.05mm using a flexible coupling.
The 105-1169-006 uses a wheel mount 4-bolt flange with 1-1/16-12 UN-2B SAE ports. 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:
Normal operating oil temperature should not exceed 82°C (180°F). Monitor case temperature regularly; if abnormally high, prioritize checking distribution face wear or system internal leakage.
Use premium anti-wear hydraulic oil with viscosity maintained at 20-43 cSt at operating temperature.
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.
