Bearing Mount – Quad Block (3/8″ Bore)


Bearing Mount – Quad Block (3/8″ Bore)



Quad block bearing mounts attach to the inside of a channel and have a ball bearing with a 3/8” bore for shafts. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.375” bore bearing, 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.


  • Width – 1.32”
  • Thickness – 0.25”
  • Bore Bearing – 0.375”
  • Hub Pattern – 0.77”



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