FEETECH FS90R Servo Motor

The FS90R is a high-speed micro 6V 1.5kg-class 360-degree continuous rotation analog servo powered by an efficient coreless motor and housed in a lightweight Nylon+Fiberglass case. Engineered for continuous motion, smart robotics, and wheel-driven platforms, it features durable plastic gears (Nylon & POM), a 21T (4.86mm) horn gear spline, and tough plastic/POM horns with no mechanical limit angles. Operating within a 4.8–6V voltage range, this analog servo delivers a peak stall torque of 1.5kg.cm and a rated torque of 0.5kg.cm at 6V, while achieving a rapid no-load speed of 130RPM at 6V. Controlled via pulse width modulation (700–2300 µsec), it executes counterclockwise rotation (CCW at 1500–2300 µsec) with a neutral stop position at 1500 µsec and a dead band width of 90 µsec. Weighing just 9g±0.2g with a 250mm±5mm connector wire, it delivers a superior power-to-weight ratio and seamless endless rotation for micro RC vehicles, rolling robots, and DIY electronics kits.

Common use cases: Wheeled micro robot drive wheels, micro RC car and tank track drives, continuous pan camera platforms, conveyor belt mechanisms in educational kits, and any sub-10g application requiring 360° continuous rotation with analog PWM speed control.