410 BO/TT Motor Wheel with 40 mm diameter

410 BO/TT Motor Wheel with 40 mm diameter serves as an essential mechanical drive component engineered specifically for small-scale robotics and DIY automation platforms. This lightweight drive wheel couples directly to standard dual-flat (D-slot) output shafts found on standard BO (Battery Operated) and TT gear motors. Furthermore, the outer synthetic rubber tread ensures reliable traction across smooth indoor surfaces such as tile, wood, and acrylic. Consequently, robotic hobbyists and embedded system developers can achieve consistent ground propulsion without adding excessive rotational inertia to the motor gearbox. Therefore, this compact 40 mm wheel delivers an optimal balance between low ground clearance, steady torque transfer, and stable navigation for miniature robotic platforms.

Key Features:

• High-Traction Tread: Features a removable rubber tire with micro-grooves to prevent slippage on smooth running surfaces.
• Direct Press-Fit Design: Mounts directly onto standard double-D flat shafts without requiring extra brass couplers or external set screws.
• Lightweight Construction: Minimizes rotational load on low-power DC gearboxes, thereby extending battery life in mobile robots.
• Impact-Resistant Core: Uses durable molded ABS plastic to withstand shocks from uneven track obstacles and sudden collisions.
• Compact Form Factor: Enables miniature chassis designs where 65 mm wheels prove too large or cumbersome.

Technical Specifications:

• Compatible Shaft Type: Dual-flat TT / BO motor shaft (Double D-type)
• Tire Material: Synthetic high-grip rubber
• Hub Material: High-grade thermoplastic polymer (ABS)
• Operating Temperature: -10°C to ±60°C
• Maximum Load Capacity: ≈ 1.5 kg per wheel
• Torque Compatibility: Engineered for standard BO gearboxes delivering up to 3 kg·cm torque

Mechanical Specifications:

• Shaft Slot Geometry: Double-flat keyed hole (~5.4 mm with flats at ~3.6 mm)
• Hub Color: Yellow / White (varies by production batch)
• Tread Color: Black
• Tire Fitment: Removable stretch-fit bead

Dimensions:

• Outer Diameter: ≈ 40 mm (including rubber tire)
• Rim Diameter: ≈ 35 mm
• Tread Width: ≈ 12 mm to 15 mm
• Bore Center Hole: ≈ 5.4 mm (3.6 mm flat-to-flat distance)
• Weight: ≈ 10 g to 12 g per unit

Pinout and Wiring:

• Mechanical Interface Only: This passive mechanical wheel contains no electrical wiring or pinout connections.
• Motor Wiring Reference: Connect the mating BO/TT motor terminals to your motor driver output pins (e.g., OUT1 and OUT2 on an L298N or L293D driver).
• Direction Control: Reversing polarity across the motor leads inverts rotation direction; however, verify that both parallel drive wheels rotate in unison before deploying autonomous navigation routines.

Datasheet Reference:

• Download TT/BO Motor and Wheel Interface Datasheet

Commonly Used in:

• Line Following Robots: Providing close-to-ground sensor clearance for IR array tracking.
• Obstacle Avoidance Rovers: Powering two-wheel and four-wheel drive educational platforms with low inertia.
• STEM DIY Kits: Serving as the primary drive component in school robotics projects and maker workshops.

Applications:

• Autonomous Ground Vehicles (AGVs): Navigating miniaturized warehouse grid tracks.
• Bluetooth/Wi-Fi RC Cars: Translating motor RPM efficiently into linear velocity on smooth floors.
• Maze Solving Robots: Maintaining sharp, predictable turning radii due to the reduced 40 mm rolling diameter.

Equivalent Models:

• 65 mm TT Motor Wheel: A larger standard alternative offering higher top speed, although requiring higher stall torque.
• 42 mm N20 Rubber Wheel: A micro alternative designed for D-shaft micro metal gear motors rather than standard BO motors.
• 40 mm Mecanum Wheel (TT Shaft): An advanced omnidirectional replacement that allows multi-vector lateral motion on the same gearbox.

Package Includes:

• 1 x 410 BO/TT Motor Wheel with 40 mm diameter (ABS Rim with Rubber Tire)