This is a set screw lock collar. It is for a 0.75 or 3/4 inch shaft. They are steel and zinc coated. Perfect for keeping your shafts or bearings in place.
Shaft Collars (sometimes called lock collars) are easy to install; the collar provides an easy way to keep your shaft from sliding or your flanged bearing from coming out.
These are 6" inch diameter Mecanum wheels with custom shafts, lock collars, and bearings.
The ROS SLAM is a programmable autonomous robot built on the Robot Operating System (ROS). It is controlled using a USB gamepad and the ROS Visualization (RViz) application.