MG946R 180° High-Torque Metal Gear Servo Motor

Product Description

The MG946R 180° High-Torque Metal Gear Servo Motor is a powerful positional servo designed for robotics, RC models, mechanical systems, and automation projects that require controlled angular movement with high torque. Its metal gear construction provides improved durability and resistance to mechanical wear, making it suitable for applications involving heavier loads and repeated movement.

Operating with a 4.8–6.6V DC supply, the MG946R provides approximately 180° of rotational travel, allowing the output shaft to move to a commanded position rather than rotate continuously. Position control is achieved through a standard PWM control signal, making the servo compatible with popular development platforms such as Arduino, ESP32, and other microcontroller-based systems.

The motor delivers high torque for its size, reaching approximately 10.5kg·cm at 4.8V and 13kg·cm at 6V under the specified stall conditions. This makes it suitable for operating robotic arms, steering mechanisms, control surfaces, grippers, and other mechanical assemblies that require substantial positioning force.

The MG946R uses a metal gear train to transfer motor torque to the output shaft. Compared with plastic-geared servos, this construction is better suited to applications involving higher mechanical loads. However, appropriate mechanical mounting and load limits are still important to prevent gear damage and excessive motor strain.

The servo features a three-wire connection for power, ground, and control signal. Its operating speed is approximately 0.20 seconds per 60° at 4.8V and 0.17 seconds per 60° at 6V, providing responsive movement for many robotics and control applications.

For reliable operation, the MG946R should be powered from a suitable external regulated supply capable of handling its current demand. Its stall current can reach approximately 1.2A, so it should not be powered directly from an Arduino board's 5V output. When controlled by a microcontroller, connect the servo supply ground and controller ground together.

Features

• High-torque positional servo motor

• Approximately 180° rotation

• Durable metal gear construction

• Operating voltage: 4.8–6.6V DC

• Maximum stall torque: approximately 13kg·cm at 6V

• PWM position control

• Three-wire connection

• Suitable for robotics and RC applications

• Compatible with Arduino and other microcontrollers

Specifications

Specifications may vary between manufacturers and compatible MG946R versions. Confirm the exact values against the supplied product or manufacturer datasheet.

Applications

• Robotic arms and grippers

• Arduino and microcontroller projects

• RC cars, boats, and aircraft

• Steering and control mechanisms

• Robotics and automation systems

• Pan-and-tilt camera mounts

• Mechanical positioning systems

• DIY engineering and educational projects