Motor Guides

By Hallen Liu -2026年11月5日

Outrunner vs Inrunner Brushless Motors: Which One Should You Choose?

An outrunner brushless motor spins its outer can (bell) around a stationary stator, while an inrunner spins a shaft inside the can. For FPV drones, multirotors and most...

By Hallen Liu -2026年11月2日

Servo Motor Working Principle: How a Servo Works and What Is Inside

A servo motor is a closed-loop actuator that combines a small DC motor, a gear reduction train, a position sensor (potentiometer or magnetic encoder), and a control circuit...

By Hallen Liu -2026年10月30日

Brushless Servo Motor Explained: How They Work, Specs and When to Use One

A brushless servo motor replaces the brushed DC motor inside a conventional servo with a sensorless or sensored brushless motor, which eliminates brush wear and delivers longer life,...

By Hallen Liu -2026年10月27日

Micro Servo vs Mini Servo: What Size Servo Do You Need? (9g to 70kg)

A micro servo is a small servo weighing 9-14 g that delivers 1.6-2.2 kg·cm of torque, while a mini servo is the next class up at roughly 20-35...

By Hallen Liu -2026年10月21日

How to Choose a Drone Motor Supplier: OEM & ODM Guide for FPV Motors

A drone motor supplier should be judged on five things: in-house manufacturing, per-unit quality testing, KV tolerance control, OEM/ODM flexibility, and sample-to-bulk process. Before you commit to a...

By Hallen Liu -2026年10月19日

How to Choose a Brushless Motor for Drones: Size, KV, and Real Thrust Data

A brushless motor for a drone is chosen in three steps: pick the stator size by your propeller diameter, pick the KV by your battery voltage, then match...

By Hallen Liu -2026年10月16日

How to Choose Drone Propellers: Size, Pitch, Material and Real Thrust Data

A drone propeller is sized by three numbers — diameter, pitch and blade count — and the first rule of choosing one is to match the diameter to...

By Hallen Liu -2026年10月14日

How to Choose a Gimbal Motor: Camera Weight, Hollow Shaft, and KV Explained

A gimbal motor is a low-KV brushless outrunner motor that drives a camera-stabilization gimbal, sized by the camera weight it must hold and the torque it can deliver...

By Hallen Liu -2026年10月6日

FPV Drone Motors Explained: X2807 vs X2812, KV and How to Read Motor Specs

FPV drone motors are sized by stator dimensions — the first two numbers are stator diameter and the next two are stator height — and KV tells you...

By Hallen Liu -2026年9月29日

How to Choose a High-Torque Servo: 20kg vs 25kg vs 30kg Digital Servos

To choose a high-torque servo, take the torque your application needs and multiply it by a safety factor of 2 — if a robot arm joint needs about...

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