Creative Commons images are CC BY 2.0

Description: Quad block bearing mounts attach to the inside of a channel and have a ball bearing with a 1/4” bore for shafts. These bearing mounts have a width of 1.32”, a thickness of 0.25”, a 0.25” 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 - 0.25”
  • Hub Pattern - 0.77”


Recommended Products

Customer Comments

Customer Reviews

5 out of 5

Based on 1 ratings:

Currently viewing all customer reviews.

Very good ready-to-use parts

I am very happy to note that Sparkfun provides many ready-to-use parts for making robotic equipment prototypes. With the variety available, the development time is drastically reduced ! Thanks and Regards R R Joshi Director ACE Electronics Pvt Ltd 26, Electronic Estate, Pune Satara Road Pune 411009 India