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Hub Arm - Single (3'')
Hub Arm - Single (3'')Hub Arm - Single (3'')Hub Arm - Single (3'')

Hub Arm - Single (3")

Our Price:  £2.40 

Available Now:  

No stock, discontinued

SKU:  PPROB-12519
Part Number:  ROB-12519
Brand:  SparkFun

These aluminum single servo hub arms can bolt directly to the aluminum hub on servo power gearboxes via four 6-32 x 3/8" machine screws. Each double hub arm has a length of 3 and utilizes 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 -3
  • Hub Pattern - 0.77


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