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Description: These hubs are perfect for running a hub through a ServoBlock Kit that is directly to your 3F Futaba servo spline. These aluminum servo hubs have a length of 1”, a hub diameter of 1”, a shaft diameter of 0.5”, and utilize the 0.77” 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.


  • Length - 1”
  • Hub Diameter - 1”
  • Shaft Diameter - 0.5”
  • 3F Futaba Spline
  • 8x 6-32 Screw Holes
  • Hub Pattern - 0.77”


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