101-2364-009 Hydraulic Orbit Motor

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Product details

The part number 101-2364-009 identifies a low-speed, high-torque hydraulic orbit motor from the Eaton Char-Lynn S Series. This type of hydraulic motor is a geroler design, widely applied in mobile and industrial hydraulic systems where direct rotary drive without a gearbox is needed.

1. Part Number Breakdown

· 101 — Series code, denoting the Char-Lynn S Series hydraulic motor.

· 2364 — Displacement code, representing a nominal displacement of 23.6 in³/rev (approx. 387 cc/rev).

· 009 — Configuration code, defining the shaft, flange, and porting. This specific code typically corresponds to: 1.25-inch straight shaft with key, 4-bolt flange, and side ports.

2. Key Performance Parameters of the Hydraulic Orbit Motor

Item Parameter

Displacement 23.6 in³/rev (≈ 386.7 cm³/rev)

Max. Continuous Pressure Drop 2500 psi (≈ 172 bar)

Max. Intermittent Pressure Drop 3000 psi (≈ 207 bar)

Continuous Torque Output ≈ 9,400 lb-in (≈ 1,062 N·m)

Max. Continuous Flow 70 gpm (≈ 265 L/min)

Speed Range 10 – 350 rpm (continuous)

Max. Output Power ≈ 52 hp (≈ 39 kW)

3. Physical Configuration (Code -009)

· Output Shaft: 1.25-inch straight shaft with a 1/4-inch square key (SAE standard), providing a robust connection for your hydraulic system.

· Mounting Flange: Standard 4-bolt flange (3.25-inch pilot, 4.188-inch bolt circle, 3/8-16 UNC bolts).

· Ports: Main ports are SAE 7/8-14 UNF O-ring side ports. A case drain port (SAE 1/4) must be plumbed back to the tank to protect this hydraulic orbit motor's seals.

4. Technical Features

· Geroler Design: This hydraulic motor delivers high torque at low speeds, making it ideal for direct-drive applications.

· Pressure-Balanced Plate: Maintains high volumetric efficiency and smooth operation throughout the motor's service life.

· Bi-directional: Symmetrical construction allows for equal performance in both rotational directions, simplifying hydraulic system design.

· Compatibility: Industry-standard mounting interfaces allow this hydraulic orbit motor to be easily replaced or integrated into existing circuits.

5. Typical Hydraulic System Applications

You will find the 101-2364-009 hydraulic orbit motor in demanding hydraulic systems such as:

· Agricultural equipment (augers, conveyors, sprayers)

· Construction machinery (sweepers, trenchers, concrete mixers)

· Industrial drives (winches, shredders, textile machinery)

· Marine systems (anchor windlasses, net haulers)

101-2364-009 Hydraulic Orbit Motor: Core Analysis

This model is ahydraulic motor, specifically ahydraulic orbit motor (gerotor motor), serving as a critical actuator within ahydraulic systemto convert hydraulic energy into rotational mechanical energy for driving load equipment.

I. Technical Characteristics and Classification

1. Structural Design

• Gerotor Gear Configuration: Utilizes an internal-meshing gerotor gear set (stator as inner gear, rotor as outer gear) with an eccentric mechanism to generate volumetric changes. This design offerscompact size, lightweight construction, and low starting pressure, making it ideal for low-pressure systems.

• Displacement and Pressure: Displacement ranges from8.2 cc to 500 cc, with continuous operating pressures up to10–225 bar(higher peak pressures possible). For example, certain models deliver11 N·m continuous torqueat 17.5 bar, equating to1.8 kW power output.

• Speed Range: Low-speed variants operate as low as20 rpm, while high-speed models reach1,950 rpm, catering to diverse operational requirements.

2. Performance Advantages

• High Efficiency and Reliability: Mechanical efficiency exceeds85%, with minimal volumetric losses to reduce energy waste.

• Low-Speed Stability: Maintains smooth operation at ultra-low speeds, eliminating crawling phenomena.

• Impact Resistance: Output shafts feature tapered roller bearings to withstand high radial and axial loads, suitable for heavy-duty applications.

• Sealing and Pressure Resistance: Shaft seals endure pressures up to10 bar, preventing hydraulic fluid leakage and extending service life.

II. Application Scenarios and Selection Guidelines

1. Typical Applications

• Construction Machinery: Rotary mechanisms in excavators and cranes requiring low-speed, high-torque output.

• Industrial Equipment: Mold opening/closing in injection molding and die-casting machines, demanding precise position control.

• Agricultural Machinery: Header lifting systems in combine harvesters, adapted to harsh environments.

• Specialized Machinery: Mining equipment and marine steering gear, requiring high reliability and shock resistance.

2. Selection Criteria

• Load Matching: Choose displacement based on torque and speed requirements to avoid underperformance or power waste.

• System Pressure: Verify that the hydraulic system’s maximum operating pressure does not exceed the motor’s rated pressure.

• Mounting Interface: Check compatibility of output shaft dimensions and flange connections with the equipment.

• Environmental Adaptability: For high-temperature, dusty, or corrosive environments, select models with reinforced seals or specialized materials.

III. Maintenance and Troubleshooting

1. Routine Maintenance

• Hydraulic Fluid Cleanliness: Regularly replace filters to prevent contaminants from entering the motor.

• Temperature Control: Avoid hydraulic fluid overheating (which accelerates seal degradation) by installing coolers if necessary.

• Seal Inspection: Periodically check shaft seals and piping connections for leaks, replacing damaged components promptly.

2. Common Faults

• Insufficient Output Torque: May result from low hydraulic fluid viscosity, internal leakage, or port plate wear.

• Unstable Speed: Investigate pressure fluctuations, air ingress, or internal wear in the motor.

• Abnormal Noise: Could indicate bearing failure, piston seizure, or gear misalignment, requiring disassembly and inspection.

IV. Industry Trends and Alternative Solutions

1. Technological Advancements

• Smart Integration: Incorporation of sensors and electronic control modules for real-time monitoring and adaptive adjustment.

• Lightweight Design: Use of high-strength alloys to reduce weight while increasing power density.

• Energy Efficiency: Optimized flow path designs to minimize pressure losses and improve system efficiency.

2. Alternative Model Recommendations

• If the 101-2364-009 is unavailable, consider other models in the same series (e.g., 101-2364-012) or competitor brands (e.g., Eaton Char-Lynn’s gerotor motors). Prioritize comparisons of displacement, pressure ratings, and mounting dimensions.

101‑2364‑009 Hydraulic Orbit Motor

Product Overview

Brand: Eaton (formerly Char‑Lynn, now part of Danfoss)

Series: H‑Series Low‑Speed High‑Torque Gerotor Orbit Hydraulic Motor

Model Code Explanation:

- 101 : Designator for H‑Series orbit motors

- 2364 : Displacement and structural code, displacement approx. 23.6 in³/r ≈ 387 cm³/r

- 009 : Code for design and seal version

Key Technical Specifications

- Displacement: 387 cm³/r (23.6 in³/r)

- Mounting: 2‑bolt flange, pilot diameter 82.5 mm

- Output Shaft: 25.4 mm (1") straight shaft with woodruff key

- Ports: 1/2" NPTF dry‑seal pipe thread

- Pressure Rating: Continuous 1600 psi (11.0 MPa), Intermittent 2000 psi (13.8 MPa)

- Torque Output: Continuous approx. 4500 in‑lb (508 Nm)

- Rotational Speed: Max continuous 250 RPM

- Flow Rate: Max continuous 15 GPM (57 L/min)

- Weight: Approx. 9.5 kg

Features & Applications

- Features: Low‑speed high‑torque performance, low starting pressure, high efficiency and stable operation; high‑pressure resistant shaft seal that can withstand high back pressure.

- Applications: Construction machinery including loaders, excavators, tractors and road rollers, as well as agricultural machinery and industrial transmission equipment.

Equivalent Replacement Models

- 101‑2364 (without version suffix, identical performance)

- 101‑2363‑009 (same series with similar displacement, interchangeable)