85mm Large Robot Smart Car Wheel – 38mm Wide Blue Rim

85mm Large Robot Smart Car Wheel – Heavy-Duty Rubber Wheel with Reinforced Nylon Hub

Product Description

The 85mm Large Robot Smart Car Wheel is a heavy-duty traction wheel designed for medium-to-large robotic platforms, DIY smart cars, autonomous vehicles, and advanced robotics projects. With its large diameter, wide profile, and high-grip rubber tire, this wheel provides a stable and durable foundation for robotic platforms carrying heavier electronics, batteries, sensors, and other payloads.

The wheel features a high-strength reinforced Nylon hub combined with a black rubber tire. The reinforced hub provides a strong yet lightweight structure, while the rubber tire offers improved grip on suitable surfaces.

An integrated sponge liner inside the tire provides additional support and helps maintain the tire’s shape under load. This makes the wheel suitable for applications where a robot may experience higher weight or repeated movement.

The tire also features an upgraded tread pattern designed to improve friction and reduce wheel slip. With an approximate 85mm diameter and 38mm width, the wheel provides a broad contact area and useful ground clearance for larger robotic chassis.

Features

• Large 85mm robot smart car wheel
• Heavy-duty design for larger robotic platforms
• High-strength reinforced Nylon hub
• High-grip black rubber tire
• Internal sponge liner for additional tire support
• Upgraded tread pattern for improved traction
• 38mm wide wheel profile
• Lightweight yet durable construction
• Suitable for 4WD and 6WD robotic platforms
• Suitable for outdoor and indoor robotic applications
• Ideal for heavy-duty smart cars
• Suitable for autonomous delivery robots
• Useful for search and rescue robots
• Suitable for competition robotics
• Designed for use with suitable hex couplings

Specifications

Parameter	Specification
Product Type	Large Robot Smart Car Wheel
Diameter	85 mm
Width	38 mm
Wheel Material	High-Strength Reinforced Nylon
Tire Material	Rubber with Internal Sponge Liner
Rim Colour	Electric Blue
Tire Colour	Black
Coupling	Not Included
Application	Smart Cars, Robots, Autonomous Platforms

Design and Construction

The wheel uses a reinforced Nylon hub designed to provide improved mechanical strength compared with conventional plastic wheel hubs.

The blue hub is combined with a black rubber tire that provides traction against the ground. The tire includes an internal sponge liner that helps support the tire structure and reduce deformation when the robot carries heavier loads.

The 38mm-wide profile provides a larger contact area, helping improve stability for medium and large robotic chassis.

The tread pattern is designed to provide additional grip and reduce slipping on suitable smooth or dusty surfaces.

Working Principle

The wheel transfers rotational power from the connected motor through a suitable hex coupling to the wheel hub.

As the motor rotates, the wheel converts the motor’s rotational movement into forward or reverse motion of the robotic chassis.

The rubber tire provides contact with the ground, while the tread pattern helps maintain traction during acceleration, turning, and movement under load.

The wheel can be used in 2WD, 4WD, or 6WD configurations, depending on the chassis design and motor arrangement.

Sponge-Lined Tire

The internal sponge liner provides additional structural support inside the rubber tire.

It helps:

• Maintain tire shape under load
• Reduce excessive tire deformation
• Improve stability
• Provide additional cushioning
• Support heavier robotic platforms

The exact load capacity depends on the complete robot design, motor torque, chassis weight, operating surface, and wheel configuration.

Reinforced Nylon Hub

The hub is made from high-strength reinforced Nylon, providing a balance between strength and weight.

Compared with basic plastic hubs, the reinforced construction is designed for applications where greater mechanical durability and impact resistance are required.

This makes the wheel suitable for applications such as:

• Outdoor robots
• Heavy smart cars
• Search and rescue robots
• Competition robots
• Autonomous delivery platforms

Tread and Traction

The black rubber tire features an upgraded tread pattern designed to increase contact and friction with the surface.

The tread can help reduce slipping during:

• Acceleration
• Braking
• Turning
• Heavy-load operation
• Uneven traction conditions

Actual traction depends on the floor or terrain, wheel load, motor torque, tire condition, and environmental conditions.

Typical Application Scenarios

Search and Rescue Robots

The large 85mm diameter provides useful ground clearance for mobile robots operating around small obstacles and debris.

Heavy-Duty Smart Cars

Suitable for 4WD and 6WD robotic platforms carrying batteries, sensors, controllers, cameras, and other equipment.

Autonomous Delivery Robots

The wide wheel profile provides a stable platform for robotic systems designed to carry payloads.

Competition Robotics

The high-grip rubber tire and reinforced hub make the wheel suitable for robotics competitions where traction and mechanical durability are important.

Applications

• 4WD robotic cars
• 6WD robotic platforms
• Heavy-duty smart cars
• Autonomous mobile robots
• Search and rescue robots
• Delivery robots
• Outdoor exploration robots
• Competition robots
• Arduino robot cars
• ESP32 robotic platforms
• Raspberry Pi robots
• STEM robotics
• DIY smart cars
• Industrial robotics prototypes
• Mobile sensor platforms
• Surveillance robots
• Autonomous vehicles
• Custom robotic chassis

Coupling Information

The coupling is not included with the wheel.

A suitable hexagonal wheel coupling is required to connect this wheel to a compatible motor shaft.

Available coupling options include:

Hex Brass Coupling for Wheels 8mm Dia

Hex Brass Coupling for Wheels 6.1mm Dia

Before purchasing a coupling, check the motor shaft diameter and the required coupling size for your robotic platform.

Package Includes

• 1 × 85mm Large Robot Smart Car Wheel – Blue Rim

Product Disclaimer

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

Motors, couplings, chassis, motor drivers, batteries, controllers, and other accessories shown in product images are not included unless specifically mentioned in the package contents.

Actual wheel performance depends on robot weight, motor torque, wheel alignment, tire condition, surface type, operating environment, and drivetrain configuration.

Important Notes

Coupling Required

This wheel typically requires a suitable hexagonal coupling to connect it to the motor shaft.

Motor Shaft Compatibility

Verify the shaft diameter of your motor before purchasing the coupling. Common shaft sizes may include 4mm, 5mm, or 6mm, depending on the motor.

Wheel Installation

Ensure the coupling and wheel are securely mounted before operating the robot. Improper mounting may result in wheel slipping or damage to the hub.

Load Considerations

Although the wheel is designed for larger robotic platforms, the actual supported load depends on the complete robotic system, including motor torque, chassis weight, number of wheels, surface conditions, and drivetrain design.

Surface Conditions

The wheel provides good traction on suitable surfaces, but loose sand, mud, water, oil, or very uneven terrain may affect grip and movement performance.

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