104-1004-006 Danfoss Char-Lynn 2000 Motor 158cc

Product Overview

The Danfoss Char-Lynn 2000 Series is an established LSHT Geroler orbital hydraulic motor platform designed for mobile and industrial hydraulic systems requiring high starting torque, controlled low-speed rotation and compact hydraulic power transmission.

Danfoss PowerSource classifies the family under:

Mobile Motors → Low-Speed High-Torque Motors → Orbital Motors → Char-Lynn Motors → 2000 Series

The official product records identify:

• Geroler orbital gearwheel set
• Disc valve with valve drive
• Cast-iron construction
• Standard, wheel and bearingless configurations
• Multiple shaft options
• Port-relief options
• Speed-sensor options
• Two-speed options
• Manifold options

The requested references are:

• 104-1004-006
• 104-1229-006
• 104-1774-006
• 104-1014-006
• 104-1007-006

They represent multiple displacement classes:

• 158.1 cm³/rev
• 194.8 cm³/rev
• 306.6 cm³/rev
• 393.8 cm³/rev

These are not mechanically interchangeable simply because they share the 2000 Series designation.

Technical Specifications

104-1004-006

• Brand: Danfoss
• Sub-Brand: Char-Lynn
• Series: 2000 Series
• Product Type: LSHT Orbital Hydraulic Motor
• Part Number: 104-1004-006
• Model Code: M02096AC01AA0100010000000AAAAF
• Motor Size: 160
• Geometric Displacement: 158.1 cm³/rev
• Displacement: 9.65 in³/rev
• Mounting: 2-Bolt SAE A
• Pilot Diameter: 82.6 mm
• Pilot Height: 6.4 mm
• Bolt Circle: 106.4 mm
• Mounting Hole: 13.6 mm
• Shaft: 1 in straight
• Shaft-End Thread: 1/4-20 UNC-2B
• Shaft Key: 1/4 × 1 in Woodruff key
• Main Ports: 7/8-14 UNF-2B SAE O-ring
• Port Arrangement: Staggered side ports
• Drain: 7/16-20 UNF-2B SAE O-ring
• Front Bearing: Tapered roller bearing
• Rear Bearing: Tapered roller bearing
• Shaft Seal: NBR standard
• Dust Seal: Standard
• Check Valve: Yes
• Sensor: None
• Gearwheel Set: Geroler
• Valve System: Disc valve with valve drive
• Weight: Approximately 22 lb / 10.0 kg
• Overall Height: 176.8 mm
• Overall Length: 248.7 mm
• Overall Width: 131.1 mm

(Danfoss PowerSource)

Published industrial data additionally lists:

• Maximum Continuous Speed: 477 rpm
• Continuous Flow: 75 L/min / 20 gpm
• Intermittent Pressure: 260 bar
• Torque: Approximately 455 Nm
• Maximum Inlet Pressure: Approximately 4,500 psi

104-1229-006

• Brand: Danfoss
• Sub-Brand: Char-Lynn
• Series: 2000 Series
• Part Number: 104-1229-006
• Model Code: M02240AC04AA0100010000000AAAAF
• Motor Size: 395
• Geometric Displacement: 393.8 cm³/rev
• Displacement: 24.03 in³/rev
• Mounting: 2-Bolt SAE A
• Pilot Diameter: 82.6 mm
• Pilot Height: 6.4 mm
• Bolt Circle: 106.4 mm
• Mounting Hole: 13.6 mm
• Shaft: 1-1/4 in, 14-tooth spline
• Main Ports: 7/8-14 UNF-2B SAE O-ring
• Drain: 7/16-20 UNF-2B SAE O-ring
• Port Arrangement: Staggered side ports
• Front Bearing: Tapered roller bearing
• Rear Bearing: Tapered roller bearing
• Shaft Seal: NBR standard
• Dust Seal: Standard
• Check Valve: Yes
• Sensor: None
• Gearwheel Set: Geroler
• Valve System: Disc valve with valve drive
• Weight: Approximately 26 lb / 11.8 kg

(Danfoss PowerSource)

Exact industrial performance data lists:

• Maximum Speed: 191 rpm
• Continuous Flow: 75 L/min / 20 gpm
• Torque: Approximately 775 Nm
• Intermittent Pressure: 170 bar

(Applied)

104-1774-006

• Brand: Danfoss
• Sub-Brand: Char-Lynn
• Series: 2000 Series
• Part Number: 104-1774-006
• Model Code: M02119AC15AA0100010AA0000AAAAF
• Motor Size: 195
• Geometric Displacement: 194.8 cm³/rev
• Displacement: 11.89 in³/rev
• Mounting: 2-Bolt SAE A
• Pilot Diameter: 82.6 mm
• Pilot Height: 6.4 mm
• Bolt Circle: 106.4 mm
• Mounting Hole: 13.6 mm
• Shaft: 32 mm straight
• Shaft-End Thread: 1/4-20 UNC-2B
• Shaft Key: 1/4 × 1 in Woodruff key
• Main Ports: 7/8-14 UNF-2B SAE O-ring
• Drain: 7/16-20 UNF-2B SAE O-ring
• Front Bearing: Tapered roller bearing
• Rear Bearing: Tapered roller bearing
• Shaft Seal: NBR standard
• Dust Seal: Standard
• Check Valve: Yes
• Sensor: None
• Gearwheel Set: Geroler
• Valve System: Disc valve with valve drive

(Danfoss PowerSource)

Exact industrial data lists:

• Maximum Continuous Speed: 385 rpm
• Continuous Flow: 75 L/min / 20 gpm
• Intermittent Pressure: 260 bar
• Torque: Approximately 540 Nm
• Weight: Approximately 25.0 lb / 11.35 kg

104-1014-006

• Brand: Danfoss
• Sub-Brand: Char-Lynn
• Series: 2000 Series
• Part Number: 104-1014-006
• Model Code: M02187AC03AA0100010000000AAAAF
• Motor Size: 305
• Geometric Displacement: 306.6 cm³/rev
• Displacement: 18.71 in³/rev
• Mounting: 2-Bolt SAE A
• Pilot Diameter: 82.6 mm
• Pilot Height: 6.4 mm
• Bolt Circle: 106.4 mm
• Mounting Hole: 13.6 mm
• Shaft: 1-1/4 in tapered
• Taper: 1:8 SAE J501
• Shaft-End Thread: 1-20 UNEF-2A
• Shaft Key: 5/16 × 1 in square key
• Main Ports: 7/8-14 UNF-2B SAE O-ring
• Drain: 7/16-20 UNF-2B SAE O-ring
• Front Bearing: Tapered roller bearing
• Rear Bearing: Tapered roller bearing
• Shaft Seal: NBR standard
• Dust Seal: Standard
• Check Valve: Yes
• Sensor: None
• Gearwheel Set: Geroler
• Valve System: Disc valve with valve drive
• Weight: Approximately 42.0 lb / 19.05 kg

Published technical data specifies:

• Maximum Continuous Speed: 246 rpm
• Continuous Flow: 75 L/min / 20 gpm
• Intermittent Pressure: 240 bar
• Torque: Approximately 765 Nm
• Operating Temperature: -34°C to 82°C

104-1007-006

• Brand: Danfoss
• Sub-Brand: Char-Lynn
• Series: 2000 Series
• Part Number: 104-1007-006
• Model Code: M02187AC01AA0100010000000AAAAF
• Motor Size: 305
• Geometric Displacement: 306.6 cm³/rev
• Displacement: 18.71 in³/rev
• Mounting: 2-Bolt SAE A
• Pilot Diameter: 82.6 mm
• Pilot Height: 6.4 mm
• Bolt Circle: 106.4 mm
• Mounting Hole: 13.6 mm
• Shaft: 1 in straight
• Shaft-End Thread: 1/4-20 UNC-2B
• Shaft Key: 1/4 × 1 in Woodruff key
• Main Ports: 7/8-14 UNF-2B SAE O-ring
• Drain: 7/16-20 UNF-2B SAE O-ring
• Front Bearing: Tapered roller bearing
• Rear Bearing: Tapered roller bearing
• Shaft Seal: NBR standard
• Dust Seal: Standard
• Check Valve: Yes
• Sensor: None
• Gearwheel Set: Geroler
• Valve System: Disc valve with valve drive
• Weight: Approximately 27.8 lb / 12.61 kg

Published technical data specifies:

• Maximum Continuous Speed: 246 rpm
• Continuous Flow: 75 L/min / 20 gpm
• Intermittent Pressure: 240 bar
• Torque: Approximately 765 Nm
• Maximum Inlet Pressure: Approximately 4,500 psi
• Operating Temperature: -34°C to 82°C

Control Method

The Char-Lynn 2000 Series is a fixed-displacement Geroler orbital motor platform.

Its basic operating relationships are:

Hydraulic Flow → Motor Speed

Differential Pressure × Displacement → Available Torque

Therefore:

• Displacement: Fixed
• Speed Control: Hydraulic flow
• Torque: Differential pressure and displacement
• Rotation Direction: Hydraulic flow direction
• Variable Displacement: Not integrated in standard single-speed configurations
• Valve System: Disc valve with valve drive
• Motor Element: Geroler

Danfoss also documents separate two-speed 2000 Series configurations. These use an external pilot circuit and a 1:2 displacement relationship; they should not be assumed to apply to the five specific part numbers in this product group. (Danfoss 2000 Series Two-Speed)

Key Technical Advantages

1. Geroler and Disc-Valve Architecture

The official Danfoss configuration records identify the core powertrain as a Geroler orbital gearwheel set with disc valve and valve drive. (Danfoss PowerSource)

This architecture is designed for efficient hydraulic-to-rotary power conversion and controlled low-speed operation.

2. Tapered Roller Bearings

The configurations covered here use tapered roller bearings at the front and rear.

This supports applications with external mechanical loading from:

• Wheels
• Sprockets
• Gears
• Pulleys
• Traction mechanisms

Actual bearing capacity should always be confirmed against the applied shaft loads and bearing-life calculations.

3. Cast-Iron Construction

The 2000 Series is documented as a cast-iron motor platform, making it appropriate for mobile machinery subjected to vibration, mechanical impact and sustained hydraulic duty. (Danfoss PowerSource)

4. Broad Shaft-Configuration Range

The requested models demonstrate the range of mechanical interfaces:

104-1004-006: 1 in straight shaft

104-1774-006: 32 mm straight shaft

104-1007-006: 1 in straight shaft

104-1014-006: 1-1/4 in 1:8 tapered shaft

104-1229-006: 1-1/4 in 14-tooth spline

(Danfoss PowerSource)

5. Integrated Check Valve

Each of the reviewed exact configurations is specified with Check Valve Function: Yes. (Danfoss PowerSource)

6. Expandable Platform Options

The wider 2000 Series supports:

• Two-speed motors
• Speed sensors
• Port relief valves
• Oversized ports
• Manifold ports

This gives the family a broad engineering envelope for mobile and industrial hydraulic applications. (Danfoss 2000 Series Two-Speed)

Application Areas

104-1004-006

• Swing drives
• Brush cutters
• Mowers
• Harvesting equipment
• Agricultural machinery
• Compact mobile equipment

(SunSource)

104-1229-006

• Swing drives
• Agricultural machinery
• Brush cutters
• Mowers
• Harvesting equipment
• Heavy mobile equipment
• Industrial rotary drives

104-1774-006

• Swing mechanisms
• Brush cutters
• Mowers
• Harvesting equipment
• Agricultural machinery
• Material handling
• Mobile machinery

104-1014-006

• Agricultural machinery
• Harvesting equipment
• Brush cutters
• Mowers
• Swing motors
• Industrial rotary equipment
• Mobile hydraulic machinery

104-1007-006

• Agricultural equipment
• Harvesting machinery
• Brush cutters
• Mowers
• Swing drives
• Mobile hydraulic machinery

Expert Maintenance Tips

1. Always Specify the Complete Part Number

Use:

104-1004-006
104-1229-006
104-1774-006
104-1014-006
104-1007-006

rather than simply “104 Series” or “Char-Lynn 2000 motor.”

Danfoss maintains a separate configuration record for each part number.

2. Do Not Mix Displacement Classes

The requested motors include:

• 158.1 cm³/rev
• 194.8 cm³/rev
• 306.6 cm³/rev
• 393.8 cm³/rev

At the same hydraulic flow, these motors produce different theoretical speeds according to:

n = Q × 1000 / Vg

A displacement mismatch can therefore change machine speed and hydraulic system behavior.

3. Verify the Shaft Interface

Particularly distinguish:

• 104-1004-006 → 1 in straight shaft
• 104-1774-006 → 32 mm straight shaft
• 104-1007-006 → 1 in straight shaft
• 104-1014-006 → 1-1/4 in tapered shaft
• 104-1229-006 → 1-1/4 in 14T spline

Mechanical interchangeability requires more than equivalent displacement.

4. Pay Special Attention to the Tapered Shaft on 104-1014-006

The 104-1014-006 configuration uses a:

1-1/4 in, 1:8 SAE J501 tapered shaft

with:

1-20 UNEF-2A shaft-end thread.

Hub taper, key geometry, thread engagement and concentricity should all be verified.

5. Calculate External Shaft Loads

For wheel, sprocket, gear and pulley drives, evaluate:

Radial Load + Axial Load + Load Distance + Shaft Speed + Bearing Life

rather than checking motor torque alone.

6. Monitor Return Pressure and Shaft-Seal Conditions

Check:

• Return pressure
• Case pressure
• Oil temperature
• Oil viscosity
• Shaft-seal leakage
• Internal leakage

7. Protect the Geroler and Disc Valve

Geroler, disc-valve and valve-drive components are precision hydraulic interfaces.

Contaminated fluid can contribute to:

• Internal leakage
• Reduced starting torque
• Torque fluctuation
• Low-speed instability
• Component wear

Proper filtration and hydraulic-fluid maintenance are therefore critical.

8. Perform 100% Simulated Operating-Condition Testing

For replacement 2000 Series motors, our recommended factory QA program includes:

• Displacement verification
• Pressure testing
• Flow testing
• Speed verification
• Starting-torque testing
• Continuous-torque verification
• Internal-leakage testing
• Rotation-direction testing
• Shaft runout inspection
• Key/spline/taper inspection
• Bearing inspection
• Drain-pressure verification
• Temperature-rise testing
• Noise and vibration testing
• Complete configuration-code verification

The engineering objective is:

Dimensional Interchangeability + Hydraulic Performance Equivalence + Functional Reliability

For this product group, the verified displacement mapping is:

104-1004-006 → 158.1 cm³/rev

104-1774-006 → 194.8 cm³/rev

104-1007-006 → 306.6 cm³/rev

104-1014-006 → 306.6 cm³/rev

104-1229-006 → 393.8 cm³/rev

Final replacement approval should always use the exact Danfoss configuration record and applicable performance documentation.