This is a set screw lock collar. It is for a 0.438 or 7/16 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.
A master battery disconnect switch is a lever-operated battery cutoff switch that will disconnect power for the battery circuit.
Indoor GPS Starter Kit featuring one Modem and five Beacons to get your project running. Accurately position your robot to a couple centimeters indoors! Indoor Positioning System (IPS)