This is a set screw lock collar. It is for a 0.25 or 1/4 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.
YDLIDAR G4 LIDAR is a 360-degree two-dimensional laser range scanner (LIDAR)
An automotive blade fuse block to easily and safely distribute power in your next project. The fuse block features four circuits (including power and ground) and convenient mounting holes to attach to your robot.