Pololu 1555/1557 Dagu Wild Thumper Wheel 120x60mm Pair with 4mm Shaft Adapters

The Pololu 1555/1557 Dagu Wild Thumper wheels are premium-grade 120x60mm pneumatic tires designed for high-torque robotic platforms and all-terrain mobile robots requiring superior traction and load-bearing capacity. Roboticists and autonomous vehicle engineers use these wheels extensively in competition robots, research platforms, and commercial delivery systems where terrain adaptability and shock absorption are critical performance parameters. These wheels solve the fundamental challenge of maintaining grip on uneven surfaces while distributing heavy payloads across larger contact patches, essential for platforms operating in outdoor environments or rough indoor terrains.

Product Overview

The Dagu Wild Thumper wheels represent a breakthrough in robotic mobility solutions, featuring a specially formulated rubber compound that provides exceptional grip coefficients across concrete, grass, gravel, and sand surfaces. The 120mm diameter and 60mm width geometry creates an optimal balance between ground clearance and stability, while the integrated tread pattern channels debris away from the contact surface. The pneumatic construction absorbs vibration and impact forces, protecting drive motors and gearboxes from shock loads that would otherwise cause premature mechanical failure. These wheels are engineered for platforms weighing 5-15kg and can handle dynamic loads exceeding 50kg during acceleration events.

The 4mm shaft adapter system provides universal compatibility with standard motor shafts found in popular robotics platforms including Pololu micro metal gearmotors and equivalent third-party motor systems. The adapters feature precision-machined aluminum construction with set-screw locking mechanisms that prevent slippage during high-torque operations. The dual-wheel pairing ensures matched rotational characteristics, critical for maintaining straight-line motion and preventing differential drift during autonomous navigation. This product is manufactured to exacting tolerances, with each wheel balanced to within 2 grams to minimize vibration at sustained operating speeds up to 300 RPM.

Key Specifications

Key Features

• 120x60mm pneumatic design provides 7200 square millimeters of contact surface area for superior weight distribution and reduced ground pressure on delicate surfaces
• Aggressive all-terrain tread pattern with 8mm depth channels ensures consistent grip on sand, gravel, grass, and concrete with minimal slippage angles
• Precision 4mm shaft adapters with dual set-screw locking mechanism eliminate rotational play and prevent catastrophic wheel detachment during high-acceleration maneuvers
• Balanced construction within 2-gram tolerance reduces vibration harmonics and extends motor bearing lifespan by minimizing radial forces at sustained speeds
• Pneumatic construction absorbs impacts up to 15cm drop heights, protecting drivetrain components from shock loads that cause gear tooth fractures
• Compatible with Pololu micro metal gearmotors and equivalent 4mm shaft diameter systems used in educational and commercial robotics platforms

Applications and Use Cases

• Competition robotics platforms including FIRST Robotics and RoboCup competitions where terrain variability and payload capacity determine match outcomes
• Autonomous ground vehicles for agricultural monitoring and inspection, requiring reliable traction across muddy fields and uneven terrain for extended mission durations
• Educational robotics curricula in engineering colleges and maker spaces, providing students with real-world experience in drivetrain selection and mobile robot design principles
• Research platforms for swarm robotics and multi-agent systems, where matched wheel characteristics ensure coordinated movement and predictable navigation algorithms
• Commercial delivery robots operating in urban environments with mixed terrain including sidewalks, gravel paths, and drainage grates requiring adaptive grip characteristics

How to Use

Installation begins with verifying motor shaft diameter matches the 4mm adapter specification using precision calipers. Slide each adapter onto the motor shaft, positioning it flush against the motor housing to minimize overhang and reduce bending moment stresses. Tighten both set-screws in a cross-pattern using a 1.5mm hex key, applying 0.5 Newton-meters of torque to prevent shaft damage while ensuring zero rotational play. Test rotation by hand to confirm smooth operation without grinding sounds indicating misalignment.

Mount each wheel assembly onto the adapter using the integrated mounting interface, ensuring the wheel sits perpendicular to the motor shaft within 2 degrees of tolerance. For pneumatic tires, check air pressure using a precision gauge calibrated to 0.5 PSI accuracy, maintaining 25-30 PSI for optimal performance. Higher pressures reduce rolling resistance but decrease traction, while lower pressures improve grip but increase heat generation and tire wear. Perform a test run at 50% motor power to verify both wheels rotate in the intended direction and maintain equal speed, confirming drivetrain balance before full-power operation.

Frequently Asked Questions

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Buy Pololu 1555/1557 Dagu Wild Thumper Wheel 120x60mm Pair with 4mm Shaft Adapters Online in India

Purchase the Pololu 1555/1557 Dagu Wild Thumper Wheel 120x60mm Pair with 4mm Shaft Adapters online at The Tech Depot, India's trusted source for genuine robotics components and electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on Pololu 1555/1557 Dagu Wild Thumper Wheel 120x60mm Pair with 4mm Shaft Adapters with fast shipping and expert technical support from experienced roboticists.

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