This listing is for one (1) heavy duty locking collar and one (1) PTFE bearing. They are sized to fit either a 1-1/2" tower pipe or 2" tower pipe. These parts are universal and can work with many different manufacturer's wind turbines.
-Heavy duty locking collar. The entire inside surface of the collar clamps with friction on your tower instead of a single tiny set screw.
-PTFE instead of nylon: A PTFE (Teflon) bearing is better than a nylon washer for the following reasons:
- Lower coefficient of friction (more slippery)
- High heat and chemical resistance - more suitable for outdoor use
- Excellent wear resistance