80mm Mecanum Omni-Directional Wheels for TT Motors – 4-Piece Set

80mm Mecanum Omni-Directional Wheel Set – 4-Piece TT Motor Wheel Kit

Product Description

The 80mm Mecanum Omni-Directional Wheel Set is a high-performance mobility solution designed for robotic cars, autonomous platforms, AGVs, STEM projects, and advanced DIY robotics applications. The Mecanum wheel design allows a robot to move not only forward and backward but also sideways, diagonally, and through rotational movements without changing the chassis orientation.

With an approximate 80mm diameter, these wheels provide greater ground clearance and can offer higher travel speed compared with smaller Mecanum wheels. This makes them suitable for larger robotic platforms and mobile chassis that require increased mobility and maneuverability.

Each wheel uses a durable ABS hub with rubber-coated rollers, providing a combination of strength, traction, and relatively smooth operation. The rollers are arranged at an angle to create the characteristic Mecanum motion, allowing the robot to perform lateral translation, diagonal movement, rotation, and other complex driving patterns.

The kit includes two left-side and two right-side wheels, together with 4 couplings and mounting screws designed for compatible TT geared motors. The modular construction also makes the wheels suitable for educational building-block systems and rapid robotics prototyping.

Features

• 80mm Mecanum omni-directional wheels
• Enables forward and reverse movement
• Supports sideways and lateral movement
• Supports diagonal movement
• Allows rotational and pivot movements
• Suitable for Mecanum drive robotic platforms
• High-strength ABS wheel hubs
• Rubber-coated rollers for improved traction
• Smooth and relatively quiet operation
• Designed for compatible TT geared motors
• Includes 6.7mm TT motor couplings
• Includes mounting screws
• Two left-side and two right-side wheels
• Compatible with selected building-block systems
• Suitable for DIY, STEM, and robotics projects

Specifications

Parameter	Specification
Product Type	Mecanum Omni-Directional Wheel Set
Wheel Diameter	Approximately 80mm
Wheel Material	High-Strength ABS
Roller Material	Rubber
Coupling Type	TT Motor Coupling
Coupling Size	6.7mm
Colour	Yellow and Black
Quantity	4 Wheels
Wheel Configuration	2 Left + 2 Right
Motor Compatibility	Compatible TT Geared Motors
Included Hardware	4 Couplings + 4 Mounting Screws
Application	Mecanum Robots, Smart Cars, AGVs, Robotics

Design and Construction

The wheels feature a robust ABS hub with multiple angled rollers arranged around the circumference. The roller arrangement is the key to the Mecanum drive mechanism, allowing the robot to generate movement in multiple directions by independently controlling the wheel speeds and rotation directions.

The rubber-coated rollers provide improved grip on suitable indoor surfaces while helping reduce vibration and noise during operation.

The 80mm wheel diameter provides a larger rolling surface and increased ground clearance, making the set suitable for larger robotic platforms compared with smaller Mecanum wheel sets.

The included left- and right-hand wheel arrangement is important for correct installation and proper Mecanum drive operation.

Working Principle

Mecanum wheels use specially angled rollers to create a movable contact point between the wheel and the ground.

By controlling the four wheels independently, the robot can perform:

• Forward movement
• Reverse movement
• Sideways movement
• Diagonal movement
• Rotation in place
• Curved movement
• Combined translation and rotation

The exact movement is achieved by controlling the direction and speed of each motor according to the desired motion vector.

For example, synchronized wheel rotation can move the robot forward, while appropriate opposite wheel combinations can move the platform sideways or rotate it.

Omni-Directional Movement

The Mecanum wheel configuration provides mobility that conventional wheels cannot easily achieve.

A properly configured four-wheel Mecanum chassis can move:

Forward → Backward → Left → Right → Diagonal → Rotate

without requiring the robot to physically turn its chassis before changing direction.

This makes the wheels particularly useful for platforms operating in confined spaces or applications requiring precise positioning.

TT Motor Compatibility

The kit includes 4 couplings designed for compatible TT geared motors, with an approximate 6.7mm coupling specification.

Before installation, verify the exact motor shaft dimensions and coupling compatibility of the selected TT motor.

The motor, gearbox, motor driver, chassis, controller, battery, and other electronics are not included unless specifically stated in the package contents.

Typical Application Scenarios

Advanced Smart Cars

Suitable for building multi-directional smart cars capable of lateral and diagonal movement.

Robotics Competitions

Useful for competition robots where rapid positioning, sideways movement, and precise maneuvering provide an advantage.

STEM Education

Ideal for teaching concepts related to vector motion, motor control, robotics kinematics, and autonomous navigation.

Automated Guided Vehicles

Suitable for prototyping compact AGVs and indoor autonomous platforms that require precise movement in limited spaces.

Warehouse and Indoor Robots

Mecanum drive systems are useful for indoor robots that need to move sideways or reposition without turning around.

Applications

• Mecanum wheel robots
• Omni-directional robots
• Smart cars
• Autonomous mobile robots
• AGV prototypes
• Warehouse robots
• Robotics competitions
• Arduino robotics
• ESP32 robotics
• Raspberry Pi robotics
• STEM educational projects
• DIY robotic platforms
• Industrial robotics prototypes
• Indoor navigation robots
• Autonomous vehicles
• Mobile robotic platforms
• Research and development
• Custom robot chassis
• Mechatronics projects

Package Includes

• 2 × Left-Side Mecanum Wheels – 80mm
• 2 × Right-Side Mecanum Wheels – 80mm
• 4 × Couplings for TT Motors
• 4 × Mounting Screws

Product Disclaimer

Product images are shown for illustrative and representational purposes only. The actual wheels may vary slightly in colour, dimensions, roller appearance, surface finish, coupling design, or other visual details depending on the manufacturing batch.

Motors, chassis, motor drivers, Arduino boards, ESP32 boards, batteries, wiring, building blocks, and other accessories shown in product images are not included unless specifically mentioned in the package contents.

Mecanum wheels require correct left/right orientation and suitable motor control to achieve the intended omni-directional movement.

Important Notes

Left and Right Wheel Orientation

Correct placement of the left-side and right-side wheels is essential for proper Mecanum movement.

Install the wheels according to their designated orientation and verify the roller direction before operating the robot.

Motor Compatibility

The included couplings are intended for compatible TT geared motors. Verify motor shaft dimensions before installation.

Four-Wheel Configuration

A complete omni-directional Mecanum drive normally requires four correctly oriented wheels and independent motor control.

Surface Conditions

Mecanum wheels perform best on relatively smooth and firm surfaces. Uneven surfaces, loose debris, carpets, or obstacles can affect traction and movement accuracy.

Motor Control

For full omni-directional operation, each wheel should normally be independently controlled using a suitable multi-channel motor driver.

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