FEETECH FT870B Servo Motor

The FT-870B-C001 is a high-performance 7.4V 75KG-class digital servo driven by an advanced 4-pole brushless motor and housed in a rugged aluminum case for optimized cooling and structural strength. Engineered for heavy-duty applications, it features ultra-durable titanium gears with a 1/356 gear ratio, smooth ball bearings, and a standard 25T/5.9mm horn gear spline. While supporting a flexible 6–9V operating voltage range, it delivers a massive peak stall torque of 750kg.cm (75kg.cm) and a rated torque of 18.75kg.cm at 8.4V, achieved at a rapid no-load speed of 0.142sec/60° (70RPM). Controlled via a digital comparator system using pulse width modulation (500–2500 µsec), this smart servo ensures a highly precise 180°±5° running degree with counterclockwise rotation, a dead band width of ≤4 µsec, and no mechanical limit angles. Weighing 78.8±1g with a 30±0.5CM connector wire, it offers an exceptional power-to-weight ratio and precise control for competitive robotics, industrial automation, and heavy-duty unmanned vehicles.