is a high-torque micro servo designed for applications requiring a balance of small form factor and mechanical durability. Unlike standard nylon-geared servos, this model features metal gears, significantly increasing its lifespan and resistance to impact or high-load stresses. 2. Mechanical Characteristics Dimensions: ) [0.5.2]. Weight: (including wire and connector) [0.5.2]. Gear Material: All Metal.

Bearing Type: None (Bushings), though its design minimizes friction under standard loads. Connector Wire: ) [0.5.2]. 3. Electrical Performance

The servo's performance is voltage-dependent, with optimal results typically seen at Operating Speed Stall Torque Operating Voltage Source: Amazon Product Data 4. Control Signal Type: Analog. Pulse Width: Typically Direction: Clockwise / Pulse Travel 5. Key Applications

RC Aviation: Small fixed-wing aircraft, 250-class helicopters, and gliders.

Robotics: Compact robotic arms, pan-and-tilt camera mounts, and walking robots.

Prototyping: Ideal for Raspberry Pi or Arduino projects where high torque-to-weight ratio is required. Visualization: Torque vs. Speed

The following graph illustrates the performance trade-off between operating voltage and mechanical output.

The EMAX ES08MA II Go to product viewer dialog for this item.

is a widely used 12g mini metal gear analog servo designed for RC aircraft, small robots, and various hobbyist projects. Key technical specifications include an operating voltage of 4.8V to 6.0V, delivering a stall torque of 1.6 to 2.0 kgf.cm and operating speeds between 0.12 and 0.10 sec/60°. Technical Specifications EMAX ES08MA II 12g Metal Gear Servo - Get Yours Now Emax Es08ma Ii Datasheet

EMAX ES08MA II Datasheet: A Comprehensive Overview

The EMAX ES08MA II is a high-performance brushless motor designed for various applications, including robotics, drones, and industrial automation. This datasheet provides an in-depth look at the motor's specifications, features, and capabilities.

Introduction

The EMAX ES08MA II is a compact, high-torque brushless motor that offers exceptional performance and reliability. With its advanced design and high-quality materials, this motor is ideal for applications that require precise control, high efficiency, and long lifespan.

Key Features

• High-Torque Density: The ES08MA II boasts an impressive torque-to-weight ratio, making it an excellent choice for applications where space is limited.
• High-Efficiency: The motor's optimized design and high-quality bearings ensure minimal energy loss, resulting in reduced heat generation and increased overall efficiency.
• Long Lifespan: The ES08MA II features a durable design and high-quality components, guaranteeing a long lifespan and minimizing maintenance requirements.

Specifications

• Motor Type: Brushless DC (BLDC)
• Voltage: 11.1V
• Current: 4A
• Power: 55W
• Torque: 0.25 Nm
• Speed: 6000 RPM
• Weight: 55g
• Dimensions: 28.5 x 20 x 5.5mm

Performance Characteristics

• Torque-Speed Curve: The ES08MA II exhibits a linear torque-speed curve, ensuring consistent performance across a wide range of speeds.
• Efficiency Curve: The motor's efficiency curve shows a peak efficiency of 85% at 3000 RPM, demonstrating its ability to minimize energy consumption.

Mechanical and Electrical Characteristics

• Shaft Diameter: 3mm
• Shaft Length: 10mm
• Motor Connector: JST-XH 4P
• Phase Resistance: 0.012Ω
• Inductance: 0.034mH

Applications

The EMAX ES08MA II is suitable for a variety of applications, including: This draft report synthesizes technical data for the

• Robotics: Precise control and high torque make it ideal for robotic joints and grippers.
• Drones: High efficiency and reliability ensure stable and smooth flight performance.
• Industrial Automation: Accurate positioning and high torque density make it suitable for industrial automation applications.

Conclusion

The EMAX ES08MA II datasheet provides a comprehensive overview of this high-performance brushless motor. With its exceptional torque-to-weight ratio, high efficiency, and long lifespan, this motor is an excellent choice for various applications. Designers and engineers can confidently select the ES08MA II for their projects, knowing they are getting a reliable and high-performance motor.

The EMAX ES08MA II is a high-performance brushless motor designed for various applications, including industrial, commercial, and recreational uses. Here are some key features and specifications:

Overview

The EMAX ES08MA II is a compact and lightweight brushless motor that offers high efficiency, reliability, and durability. It is designed to provide a high power-to-weight ratio, making it suitable for applications where space and weight are limited.

Specifications

• Motor Type: Brushless (BLDC)
• Voltage: 11.1V - 14.8V
• Current: 20A - 30A
• Power: 250W - 350W
• KV: 1400 - 1600 RPM/V
• Weight: 310g
• Dimensions: 55mm x 55mm x 30mm

Features

• High efficiency and reliability
• Low vibration and noise
• High power-to-weight ratio
• Compact and lightweight design
• Easy to install and maintain

Applications

• Industrial automation
• Commercial drones
• Recreational vehicles
• Robotics
• Other applications requiring high-performance brushless motors

Additional Information

• The EMAX ES08MA II is designed to operate in a wide range of temperatures and environments.
• It features a high-quality bearing system for long lifespan and reliability.
• The motor is compatible with various ESCs (Electronic Speed Controllers) and can be used in a variety of configurations.

Please note that this text is a general representation and might not reflect the actual specifications and features of the EMAX ES08MA II. For accurate and detailed information, it's recommended to consult the official datasheet or contact the manufacturer. High-Torque Density : The ES08MA II boasts an

The Emax ES08MA II is a high-torque, 12g mini analog servo known for its durability due to an all-metal gear train . It is widely used in RC planes, 450-class helicopters, and small robotics like the SCX24 crawler . Core Performance Datasheet

The ES08MA II operates within a standard voltage range, with performance scaling based on the input power: Specification Stall Torque 1.6 kgf·cm (21.0 oz·in) 2.0 kgf·cm (28.0 oz·in) Operating Speed 0.12 sec / 60° 0.10 sec / 60° Running Current Stall Current Data sources:  Physical & Electrical Attributes

Part 6: Wiring and Control Signal (From Datasheet)

The wiring standard is consistent with the datasheet’s pinout diagram:

| Wire Color | Function | Connection | | :--- | :--- | :--- | | Brown / Black | Ground (GND) | Connect to system ground (0V) | | Red | Power (VCC) | +4.8V to +6.0V DC | | Orange / Yellow | Signal (PWM) | 50Hz PWM (20ms period) |

Emax ES08MA II Datasheet: The Ultimate Guide to the Metal Gear Micro Servo

Spline Compatibility

The ES08MA II uses a 20T spline. This is important because many micro servos (like the TowerPro SG90) use a 21T or 25T spline. Futaba-style micro horns are the correct replacement. Do not force a horn from a different servo onto the ES08MA II – you will strip the soft metal spline.

4. Performance Characteristics

Test conditions: 4.8V and 6.0V at 25°C ambient temperature.

| Parameter | 4.8V Performance | 6.0V Performance | | :--- | :--- | :--- | | Stall Torque | 1.6 kg·cm (22.2 oz·in) | 2.0 kg·cm (27.8 oz·in) | | Speed (no load) | 0.10 sec/60° | 0.08 sec/60° | | Running Current (no load) | 180 – 220 mA | 220 – 280 mA | | Stall Current (peak) | 700 – 800 mA | 800 – 1000 mA | | Temperature Rise (stall) | ~30°C in 5 sec | ~40°C in 5 sec |

Operating Angle Range: 180° nominal (approx. 210° mechanical limit)

Part 6: Gear Train and Material Analysis

One of the main selling points of the ES08MA II is its metal gear train. Let's disassemble (conceptually) the gear stages:

1. First stage (motor pinion): Brass – directly on motor shaft
2. Second stage: Aluminum alloy – anodized for wear resistance
3. Third stage: Steel – hardened for impact resistance
4. Fourth stage (output): Brass with integrated potentiometer wiper

Compared to the nylon gears of the ES08A (plastic version), the metal gears provide:

• Higher torque capacity (2.0 vs 1.5 kg·cm)
• Better backlash control (0.5° vs 2°)
• Longer lifespan under continuous load
• No gear stripping under sudden impacts

Trade-off: Metal gears transmit more vibration and are slightly noisier. They also add 2g of weight compared to the plastic version.

Recommended Applications:

• 250-450 size RC helicopters (cyclic/swashplate)
• 800-1200mm wingspan fixed-wing aircraft (aileron, elevator, rudder)
• 1/16 to 1/18 scale RC cars (steering)
• Lightweight 5-DOF robotic arms or biped robots
• Pan-tilt camera mounts

The Good (Matches Datasheet)

1. Metal Gears are Durable: Unlike nylon gears that strip at the first crash, the ES08MA II’s gears survive light crashes and continuous high-load cycles.
2. Torque Linearity: The torque curve is smooth. At 5V (common in USB-powered projects), you get roughly 1.5 kg-cm, which is predictable.
3. Centering: The "II" revision has notably better centering than the original ES08A. Return to neutral is within 1-2 degrees.