Feetech ST-3046-C001 7.4V 40kg.cm TTL Serial Bus Servo

The Feetech ST-3046-C001 is a high-torque single-axis smart servo for robot joints, grippers and mechanisms that carry real load. A coreless motor drives a steel gearbox inside an aluminium alloy case, and the TTL serial bus lets one controller command and monitor a whole chain of servos.

Key features

• 13.3kg.cm rated torque and 0.22 s/60° no-load speed at 7.4V

• Coreless motor with steel gears and ball bearings

• 12-bit magnetic encoder: 4096 positions over 360°, no angle limit

• 0-360° position control, continuous multi-turn and step modes, with configurable acceleration

• Feedback of position, speed, input voltage, current, temperature and load for real-time monitoring

Specifications

• Operating voltage: 6-7.4V

• Peak stall torque: 40kg.cm at 7.4V

• Rated torque: 13.3kg.cm at 7.4V

• No-load speed: 0.22 s/60° at 7.4V

• Current: 300mA no-load, 3.1A stall at 7.4V

• Interface: half-duplex asynchronous serial (TTL), IDs 0-253, 38,400 bps to 1 Mbps

• Horn spline: 25T, 5.9mm OD (POM plastic horn)

• Lead length: 150mm

• Dimensions: 40 x 20 x 43.05mm

• Weight: 89g (±1g)

• Operating temperature: -20 to 60°C

A fully charged 2S LiPo reaches 8.4V, above this servo's 7.4V ceiling, so feed it through a regulator or BEC set within 6-7.4V. Size that supply for 3.1A per servo at stall.