This is a set screw lock collar. It is for a 0.375 or 3/8 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.
This is set screw lock collar. It is for a 0.50 or 1/2 inch shaft. They are steel and zinc coated.
The B3 Compact charger is a very simple to use charger for 7.4 2S and 11.1 3S battery packs. No need for additional power supplies or 12v batteries as this little unit has its own built in power supply that can be powered with 100-240v.
After building many custom WiFi HD2 robots, we have combined the most common requests and come up with this standard WiFi HD2 robot.