104-1026-006 Orbit Motor

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Product details

104‑1026‑006 Hydraulic Orbit Motor

Eaton Char‑Lynn 2000 Series Geroler Orbit Motor

Product Positioning: Model 104‑1026‑006 is a low‑speed high‑torque hydraulic orbit motor (geroler motor) under Eaton Char‑Lynn. It features a cast‑iron housing and 2‑bolt flange, delivering medium displacement, high efficiency and low torque pulsation. Widely used for swing and travel drives in agricultural machinery and construction equipment.

1. Model Code Explanation

- 104: 2000 series, standard disc‑type geroler design

- 1026: Displacement specification, 11.89 in³/r ≈ 194.8 cm³/r

- 006: Configuration code for standard 2‑bolt flange, straight keyed shaft and offset port layout

- Internal part number: M02119AC02AA0100010000000AAAAF

2. Core Technical Specifications

- Structure: Disc‑type geroler, cast‑iron housing

- Displacement: 194.8 cm³/r (11.89 in³/r)

- Continuous Flow Rate: 75 L/min (20 GPM)

- Max Continuous Speed: 385 rpm

- Continuous Operating Pressure: 17 MPa (170 bar)

- Intermittent Peak Pressure: 26 MPa (260 bar)

- Continuous Output Torque: 540 N·m

- Weight: 23 kg (50.7 lbs)

- Mounting Flange: SAE A‑style, 2‑bolt, pilot diameter 82.6 mm

- Output Shaft: 1.25‑inch straight keyed shaft

- Port Connection: #10 ORB (7/8‑14 UNF), offset port arrangement

- Operating Temperature: ‑34℃ ~ +82℃

3. Structural Features

- ✅ Disc‑type geroler design: Higher efficiency and lower pressure drop than conventional orbit motors

- ✅ Low‑speed high‑torque performance: Delivers 540 N·m at 17 MPa with strong break‑away torque

- ✅ SAE 2‑bolt flange: Standard mounting with wide compatibility

- ✅ 1.25‑inch straight keyed shaft: Suitable for sprockets, gears and couplings

- ✅ Heavy‑duty cast‑iron housing: High impact resistance for harsh working environments

- ✅ Built‑in charge and check valves: Prevents cavitation and improves low‑speed stability

4. Typical Applications

- Agricultural machinery: Swing and travel drives for mowers, straw choppers and harvesters

- Construction machinery: Mini‑excavator swing drives, skid‑steer loader attachments, asphalt pavers

- Other equipment: Winches, conveyors, drilling machines and forestry machinery

5. Key Advantages

- High efficiency: Minimal pressure loss for reduced fuel consumption

- High reliability: Hardened geroler components and heavy‑duty bearings for long service life

- Low torque pulsation: Smooth operation and low noise, ideal for precision drives

- Easy installation: Standard flange and shaft design for convenient replacement

6. Interchangeable & Alternative Models

- Original OEM: 104‑1026, 104‑1026‑004, 104‑1026‑005

- Domestic replacements: BM6‑200, HMS‑200, BMR‑200

7. Common Malfunctions

- Slow speed or insufficient power: Internal leakage, contaminated oil or insufficient system pressure

- Abnormal noise or vibration: Worn geroler elements, damaged bearings or cavitation

- Oil leakage: Worn shaft seals, loose end‑cap bolts or cracked housing

104-1026-006 Hydraulic Orbit Motor: Detailed Introduction

I. Product Features

1. Brand and Model: This motor belongs to the product line of Eaton, with the model number 104-1026-006.

2. Structural Type: As a hydraulic orbit motor, it employs a specialized internal gearing design, featuring an internal gear stator and an external gear rotor. It forms closed tooth chambers through planetary reduction principles.

3. Performance Advantages:

• Compact Structure: Small size, lightweight, and high power density.

• Low Starting Pressure: Mechanical efficiency can exceed 85%, ensuring sensitive starting.

• Smooth Operation: Low noise, high volumetric efficiency, and long service life.

• Reversible Rotation: Supports loaded starting and reversible operation, adapting to various working conditions.

4. Technical Parameters:

• Displacement Range: Covers 50-1250 mL/rev, with specific models offering displacements such as 100cc, 125cc, 160cc, 200cc, 250cc, 315cc, and 400cc.

• Pressure Ratings: Continuous working pressure up to 21 MPa (for some models), with higher peak pressures available.

• Speed Range: Broad continuous speed range with excellent low-speed stability.

• Torque Output: High continuous and peak torque, meeting heavy-duty requirements.

II. Application Areas

1. Construction Machinery: Walking drive systems for excavators, loaders, and road rollers.

2. Agricultural Machinery: Hydraulic transmissions for combine harvesters and tractors.

3. Industrial Machinery: Rotary or linear drives for injection molding machines, presses, and machine tools.

4. Marine Industry: Auxiliary power units for deck machinery and propulsion systems.

5. Special Vehicles: Hydraulic actuators for mining dump trucks and fire trucks.

III. Technical Details

1. Port Distribution: Utilizes axial or end-face port distribution designs to ensure precise oil distribution under high pressure.

2. Bearing System: Employs high-load-capacity rolling bearings or hydrostatic sliding bearings to support high radial/axial forces.

3. Sealing Design: Shaft seals can withstand reverse oil pressure under high pressure, preventing leakage and extending service life.

4. Mounting Interfaces: Offers various flange, output shaft, and port connection options for easy system integration.

IV. Purchase Recommendations

1. Model Matching: Select the appropriate model based on the required displacement, pressure, and speed parameters of the equipment (e.g., 100cc or 315cc models in the BMK2 series).

2. Brand Compatibility: Determine whether an original Eaton product or a compatible brand (e.g., HANJIU) is needed. The latter often offers higher cost-effectiveness and can replace Danfoss, M+S, and other series.

3. Certifications and Warranty: Prioritize products certified by CE and ISO9001 to ensure reliable quality. Pay attention to the warranty period provided by the supplier (e.g., 18 months).

4. Customization Services: Some manufacturers support non-standard customization (e.g., special flanges, port positions) based on actual needs.