Ball Bearing Hub

These ball bearing hubs from Actobotics are great when you need to securely fasten a free-spinning shaft to a stationary channel to drive a pulley, wheel, or other rotating device. Each ball bearing hub has an outer diameter of 1", a bearing bore of 0.25", a thickness of 0.5", 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.

  • OD - 1"
  • Bearing Bore - 0.25"
  • Thickness - 0.5"
  • Hub Pattern - 0.77"

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Ball Bearing Hub Product Help and Resources

Core Skill: Robotics

This skill concerns mechanical and robotics knowledge. You may need to know how mechanical parts interact, how motors work, or how to use motor drivers and controllers.

1 Robotics

Skill Level: Noob - You will be required to put together a robotics kit. Necessary parts are included and steps will be easy to follow. You also might encounter basic robotics components like bearings, mounts, or other hardware and need a general idea of how it goes together.
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Core Skill: DIY

Whether it's for assembling a kit, hacking an enclosure, or creating your own parts; the DIY skill is all about knowing how to use tools and the techniques associated with them.

1 DIY

Skill Level: Noob - Basic assembly is required. You may need to provide your own basic tools like a screwdriver, hammer or scissors. Power tools or custom parts are not required. Instructions will be included and easy to follow. Sewing may be required, but only with included patterns.
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Comments

Looking for answers to technical questions?

We welcome your comments and suggestions below. However, if you are looking for solutions to technical questions please see our Technical Assistance page.

  • I have a 4 mm diameter motor shaft. Will this fit onto the shaft?

    • NO. The 1/4" bearing bore is 6.35mm, so the 4mm shaft would just be floating in the bearing hole.

      I was looking for a 5mm and 6mm bearing bore size, but they do not seem to do the metric sizing and have a very limited range of bearing bore sizes.

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