Description

2804 Hollow Shaft BLDC Outrunner Motor

The 2804 Hollow Shaft Brushless DC Motor is a compact high-precision outrunner BLDC motor designed for direct-drive robotics, gimbal systems, lightweight robot joints, pan-tilt mechanisms, and FOC motion control applications.

Built with a 28mm stator and 12N14P structure, the motor delivers smooth low-cogging operation, excellent torque density, and high efficiency. The motor is factory-installed with a radial magnetic ring, allowing seamless integration with magnetic encoders such as AS5600, MT6701, AS5048, and other position sensing solutions.

Optimized for Field Oriented Control (FOC), the motor works with SimpleFOC, ODrive, VESC, DengFOC, and other BLDC servo controllers, making it an excellent choice for robotics developers, automation engineers, and research projects.

Key Features

• Compact 2804 direct-drive BLDC motor
• Hollow shaft design for cable routing
• Factory-installed magnetic sensing ring
• Supports FOC control algorithms
• Compatible with SimpleFOC, ODrive, VESC and DengFOC
• Smooth low-cogging rotation
• High precision NdFeB magnetic circuit
• Lightweight aluminum alloy housing
• Ideal for encoder-based closed-loop control
• Optimized for robotics and gimbal applications

Typical Applications

• Robot Joint Modules
• Humanoid Robots
• Mini Quadruped Robots
• Gimbal Stabilizers
• Camera Pan-Tilt Systems
• Direct Drive Actuators
• Precision Motion Control
• Educational Robotics
• Research Platforms
• FOC Development Projects
• Embedded Motion Systems
• Lightweight AGV Steering Systems

Specifications

Encoder Compatibility

This motor is supplied with a pre-installed radial magnetic ring and can be paired with:

• AS5600 Magnetic Encoder
• MT6701 Magnetic Encoder
• AS5048 Magnetic Encoder
• Magnetic Hall Angle Sensors
• Closed Loop Servo Systems

Optional Encoder Variant

2804 Motor + AS5600 Magnetic Encoder

Features:

• 12-bit angle sensing
• Approx. 0.087° resolution
• I²C communication
• Analog output
• PWM output
• 3.3V / 5V support

Available Variants

Variant 1

2804 Motor Only

Includes:

• 1 × 2804 Hollow Shaft BLDC Motor

Variant 2

2804 Motor + AS5600 Encoder

Includes:

• 1 × 2804 Hollow Shaft BLDC Motor
• 1 × AS5600 Encoder Board
• Pre-installed Magnetic Ring

Package Includes

Depending on selected variant:

• 2804 BLDC Motor
• AS5600 Magnetic Encoder Module (Optional)

Applications

• SimpleFOC Projects
• ODrive Motion Systems
• VESC Applications
• Robotics Research
• Gimbal Stabilization
• Pan-Tilt Platforms
• Lightweight Robot Arms
• Educational Development Kits
• Embedded Servo Systems
• Direct Drive Mechanisms

FAQ

Does this motor support FOC control?

Yes. The motor is specifically suitable for FOC control and works with SimpleFOC, ODrive, VESC, DengFOC and similar controllers.

Is the magnetic ring already installed?

Yes. The radial magnetic ring is factory-installed.

Can I install an AS5600 encoder?

Yes. The motor is designed for magnetic encoder integration and is compatible with AS5600 encoder modules.

Does the motor include an encoder?

The standard version does not include an encoder unless the encoder variant is selected.

Can the hollow shaft be used for cable routing?

Yes. The hollow shaft allows signal or power cables to pass through the motor center.

Is this suitable for robot joints?

Yes. The compact size and direct-drive architecture make it suitable for lightweight robotic joints and precision motion control systems.

Which controllers are recommended?

• SimpleFOC Shield
• ODrive Controller
• VESC Controller
• DengFOC Controller
• Other FOC-capable BLDC drivers