These clamping hubs are an excellent and budget-friendly option for attaching hub mount gears or wheels to shafts or tubes. Unlike set screw hubs, they won't damage the items you're clamping. With a 5/16' bore, four 6 - 32 tapped holes, one 6 - 32 machine screw for tightening, and a 0.77' hub pattern, they're a reliable choice. Actobotics is a robotics building system featuring extruded aluminum channels, gears, precision shafts, and ball bearings. Thanks to two standardized hole patterns, most Actobotics components can be easily connected. This wide - range of components makes building complex electromechanical prototypes or finished projects a breeze. Dimensions: Bore - 5/16'; Hub Pattern - 0.77'. Documents: SketchUp Part, Product Page (545592).

Using this clamping hub is easy. First, align the hub with the shaft or tube where you want to attach the gear or wheel. Then, insert the 6 - 32 machine screw into one of the tapped holes and tighten it to secure the hub in place. Make sure not to over - tighten the screw as it might cause damage to the hub or the item you're clamping. When not in use, store the clamping hub in a dry place to prevent rust. Periodically check the tapped holes and the machine screw for any signs of wear or damage. If you notice any issues, replace the parts as needed to keep the hub working properly.