FEETECH FT955BL Servo Motor

The FT-955B-C001 is a high-performance 8.4V 50KG-class digital servo driven by an advanced brushless motor and housed in a durable aluminum case for optimal thermal management. Engineered with heavy-duty steel gears featuring a 1/451 gear ratio and smooth dual ball bearings, it operates reliably across a 4–8.4V voltage range. At 8.4V, it delivers a massive peak stall torque of 50kg.cm, a rated torque of 16kg.cm, and an impressive no-load speed of 0.119sec/60° (84RPM). Utilizing a digital comparator control system with pulse width modulation (500–2500 µsec), this servo ensures a precise 180°±5° running degree with clockwise rotation and an ultra-narrow dead band width of ≤4 µsec. Weighing 95.1±1g and featuring a 25T/5.9mm horn gear spline with no mechanical limit angles, it offers exceptional speed, strength, and structural durability for professional robotics and automation systems.

Why choose the FT955BL? Unlike conventional brushed servos, the FT955BL’s brushless motor delivers significantly longer service life, lower heat generation, and more consistent torque output under continuous load — making it the preferred choice for humanoid robots, robotic arms, and high-cycle automation rigs. With 50kg.cm of peak torque in a compact 43.7×22.3×39.8mm aluminum body, it punches well above its weight class.

Common use cases: Humanoid robot joints, robotic arm actuators, pan-tilt camera platforms, industrial automation end-effectors, and any application requiring high torque with low maintenance in a compact form factor.

Frequently asked questions:
Q: What voltage does the FT955BL operate at? A: It operates across 4–8.4V; peak torque of 50kg.cm is achieved at 8.4V.
Q: Is this servo compatible with standard PWM controllers? A: Yes, it uses standard pulse width modulation (500–2500 µsec) and is compatible with most RC and robotics controllers.
Q: What makes it different from brushed servos? A: The brushless motor provides longer lifespan, higher efficiency, and more stable performance under sustained load compared to brushed alternatives.