Hub Motor Selection Guide: How to Choose the Right Diameter and Tire Width Based on Device Structure In designing small to mid-sized electric devices such as smart luggage, balance scooters, and electric skateboards, choosing the appropriate hub motor parameters—including diameter (e.g., 138mm), tire width (e.g., 39mm), dropout size (e.g., 68mm), and threaded axle type—is critical for ensuring installation compatibility and operational stability. This guide provides a detailed analysis of how these key parameters impact torque transmission and load capacity, helping you quickly identify the best fit for your device’s structural needs. By examining real-world cases, we highlight common pitfalls such as axle spacing mismatches that cause vibration or assembly challenges, and offer practical structural optimization tips to enhance load handling and extend battery life. Empower your engineering decisions with data-backed insights to build more reliable electric mobility products. Learn More 2025/08/21
