101-1016-009 Hydraulic Orbit Motor

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Product details

The part number 101-1016-009 identifies a low-speed, high-torque hydraulic orbit motor from the Eaton Char-Lynn S Series. This hydraulic motor features a geroler design and is widely integrated into mobile and industrial hydraulic systems that require reliable direct rotary drive without a gearbox.

1. Part Number Breakdown

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

· 1016 — Displacement code, indicating a nominal displacement of 16.0 in³/rev (approx. 262 cc/rev).

· 009 — Configuration code, defining a 1.25-inch straight shaft with key, a standard 4-bolt flange, and side ports — a common interface in many hydraulic systems.

2. Key Performance Parameters of the Hydraulic Orbit Motor

Item Parameter

Displacement 16.0 in³/rev (≈ 262 cm³/rev)

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

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

Continuous Torque Output ≈ 6,400 lb-in (≈ 723 N·m)

Max. Continuous Flow 45 gpm (≈ 170 L/min)

Speed Range 10 – 560 rpm (continuous)

Max. Output Power ≈ 45 hp (≈ 34 kW)

3. Physical Configuration (Code -009)

· Shaft: 1.25-inch straight shaft with a 1/4-inch square key, offering a durable mechanical interface in any hydraulic system.

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

· Ports: Main working ports are SAE 7/8-14 UNF O-ring side ports. This hydraulic motor also requires a case drain line (SAE 1/4) plumbed directly back to the reservoir to maintain proper hydraulic system pressure balance.

· Interchangeability: This configuration makes the hydraulic orbit motor a direct dimensional match for many industry-standard mounts, simplifying replacement.

4. Technical Features of the Hydraulic Motor

· Geroler design: The heart of this hydraulic orbit motor, delivering smooth high torque at low speeds, ideal for direct-drive applications.

· Pressure-balanced plate: Automatically maintains optimum internal clearance, ensuring high volumetric efficiency over the life of the hydraulic motor and keeping your hydraulic system performing reliably.

· Bi-directional capability: Symmetrical internal construction provides equal performance in both rotational directions, offering flexibility in hydraulic system circuit design.

· Robust construction: Built with needle roller bearings and high-pressure shaft seals, this hydraulic orbit motor is engineered for demanding continuous-duty cycles.

5. Typical Hydraulic System Applications

This hydraulic orbit motor is commonly employed in the following hydraulic systems:

· Agricultural equipment (manure spreaders, augers, conveyor drives)

· Construction machinery (sweeper brooms, compact trenchers, concrete mixers)

· Industrial drives (winches, shredders, heavy-duty mixers)

· Marine and offshore (capstans, net haulers, cable reels)

101‑1016‑009 Hydraulic Orbit Motor

Product Overview

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

Series: H‑Series low‑speed high‑torque gerotor hydraulic orbit motor

Model Code Explanation:

‑ 101 : Code for H‑Series motors

‑ 1016 : Displacement specification code, displacement: 22.6 in³/r ≈ 370 cm³/r

‑ 009 : Design and seal version code

Key Technical Specifications

‑ Displacement: 370 cm³/r (22.6 in³/r)

‑ Mounting: 4‑bolt flange, pilot diameter 44.5 mm (1.75")

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

‑ Ports: 7/8"‑14 O‑ring boss thread

‑ Pressure Rating: Continuous 1650 psi (11.4 MPa), Intermittent 2250 psi (15.5 MPa)

‑ Torque Output: Max approx. 3602 in‑lb (407 Nm)

‑ Rotational Speed: Max continuous 200 RPM

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

‑ Weight: Approx. 6.8 kg (15 lbs)

Structure & Features

‑ Structure: Consists of stator‑rotor assembly with one‑tooth difference, valve plate, splined shaft and high‑pressure seals.

‑ Features: Low‑speed high‑torque output, low starting pressure, bi‑directional rotation, compact structure and excellent shock resistance.

‑ Seal: High‑pressure shaft seal for harsh working conditions.

Typical Applications

‑ Agricultural machinery: Harvesters, winches, conveyor drives

‑ Construction machinery: Loaders, drilling rigs, small‑sized winches

‑ Industrial equipment: Conveyors, mixers, winders

Replacement Equivalents

‑ Same series: 101‑1016 (without suffix), 101‑1016‑005 / 007 / 008

‑ Equivalent series: Danfoss OMT series, 370 cc orbit motors from other brands

101-1016-009 Hydraulic Orbit Motor: Core Analysis

This model belongs to the category ofhydraulic motors, specifically ahydraulic orbit motor (also known as a gerotor motor), serving as a critical actuator within ahydraulic systemto convert hydraulic energy into rotational mechanical energy and drive load equipment.

I. Technical Characteristics and Classification

1. Structural Principle

• Gerotor Gear Design: Utilizes an internal-meshing gerotor gear set (stator as the inner gear and rotor as the outer gear), with an eccentric mechanism enabling volumetric changes. This design featurescompact size, lightweight construction, and low starting pressure, making it suitable for low-pressure systems.

• Sealing and Pressure Resistance: The output shaft employstapered roller bearingsto withstand high radial and axial forces, ensuring stability under high-pressure conditions. The sealing design typically adopts anO-ring groove structurewith5080 nitrile rubberresistant to aviation hydraulic oil, meeting stringent environmental requirements.

2. Performance Parameters

• Displacement Range: Common models offer displacements from8.2 cc to 500 cc. For example, one model delivers11 N·mof continuous torque at 17.5 bar, equating to1.8 kWof power.

• Speed and Pressure: Low-speed variants operate as low as20 rpm, while high-speed models reach1,950 rpm. Continuous operating pressures typically range from10–225 bar, with higher peak pressures achievable.

• Efficiency and Lifespan: Mechanical efficiency exceeds85%, with high volumetric efficiency and a lifespan exceeding10,000 hours(depending on operating conditions).

II. Application Scenarios and Selection Guidelines

1. Typical Applications

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

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

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

• Agricultural Machinery: Applied in header lifting systems of combine harvesters, suitable for harsh environments.

2. Selection Criteria

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

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

• Mounting Interface: Verify 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 special materials.

III. Collaboration with Hydraulic Systems

1. System Composition

• Power Components: Hydraulic pumps (e.g., gear pumps, piston pumps) supply high-pressure fluid.

• Control Components: Directional valves and throttle valves regulate fluid direction and flow rate.

• Auxiliary Components: Filters and coolers maintain fluid cleanliness and temperature.

• Actuator: The hydraulic orbit motor converts hydraulic energy into mechanical energy to drive the load.

2. Performance Optimization

• Pressure Matching: Adjust the hydraulic pump’s output pressure to prevent motor overload or inefficiency.

• Flow Control: Use throttle valves or variable-frequency pumps to regulate flow rate for precise speed control.

• Seal Maintenance: Regularly inspect seal wear to prevent fluid leakage and system pressure drops.