This is a set screw lock collar. It is for a 0.625 or 5/8 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.
Steel Machine Key 3/16" x 3/16", 3/4" long. These keys are economical with high strength and will fit 3/16" keyways.
The RunCam 2 HD camera is designed for the FPV Racers. This mini HD camera provides high-resolution video and images at 1080P @60fps or 720P @120fps.