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Servo Hub - Standard (Futaba Standard)


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These hubs are ideal for attaching wheels, gears, or any heavy duty servo horns directly to your 3F Futaba servo spline. These aluminum servo hubs have a diameter of 1 inch, a width of 0.25 inch, and utilize the 0.77 inch hub pattern.

Actobotics is a robotics building system based around extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to the two standardized hole patterns, nearly all Actobotics components can be intuitively connected together. The wide range of components makes building complex electromechanical prototypes or finished projects a reality.


  • Diameter - 1 inch
  • Width - 0.25 inch
  • 3F Futaba Spline
  • 4x 6-32 Screw Holes
  • 4x 0.14 inch Thru Holes
  • Hub Pattern - 0.77 inch