The Hitec HS-805BB is a giant-scale servo delivering up to 343 oz-in of torque at 6V, making it a powerhouse for large robotics builds, heavy-duty pan-tilt mechanisms, and oversized RC applications. Dual ball bearings and heavy-duty nylon gears ensure smooth, reliable operation under load.

Comes with a Y-harness, three mega horn options, and full mounting hardware. The D1 heavy-duty spline provides a solid connection to the included horns.

Key Features

• 343 oz-in Torque (6V) – Serious holding and driving power for large mechanisms
• Dual Ball Bearings – Smooth rotation and extended lifespan
• Heavy-Duty Nylon Gears – Durable under sustained loads
• 3-Pole Ferrite Motor – Reliable, high-torque drive
• D1 Heavy-Duty Spline – Secure horn connection
• 180° Rotation – Standard servo range

Specifications

• Voltage: 4.8–6.0V
• Torque: 274 oz-in (4.8V) / 343 oz-in (6.0V)
• Speed: 0.19 sec/60° (4.8V) / 0.14 sec/60° (6.0V)
• Pulse Range: 1500–1900 µs (clockwise)
• Dimensions: 66 × 30 × 57.6 mm
• Wire Length: 300 mm
• Weight: 152 g

Ideal For

• Large-scale robotics and mechatronics
• Heavy-duty pan-tilt and gimbal systems
• Giant-scale RC aircraft and vehicles
• Animatronics and stage props

Package Contents

• 1× HS-805BB servo
• 1× Y-harness
• 1× Circle mega horn
• 1× Four-point mega horn
• 1× Single arm mega horn
• 4× Rubber grommets
• 4× 2×15 mm Phillips screws
• 4× Brass eyelets

Resources

• Datasheet (PDF)