These are national brand garage nylon door rollers.
Highest quality garage door rollers.
Overhead door rollers keep garage doors and other overhead doors rolling smoothly.
They are rated at 155 000 cycles which is 15x that of a standard garage door roller.
Since they are made of nylon you can expect them to be more silent smooth on your door track.
The top most product for best nylon garage door rollers is taken by the national 2 inch 13 ball bearing nylon rollers.
Superior quality nylon rollers that have been rated with 20 000 cycles which is approximately three times longer compared to any standard roller.
These rollers reduce the racket of old metal rollers.
With a rating of 125 000 door open and close cycles you will never have to replace your garage door rollers again.
Use these rollers as replacements on an existing door hanger or as the starting point for a customized hanger.
As a result they are seen as one of the best quality rollers available in the market today.
The 6200zz bearing is the highest quality bearing available on the market.
The tracks have a little bit of give in them and the standard 4 inch rollers were partially slipping out of the mounts from time to time which only added to the wear and tear.
The rollers reduce door noises and vibrations effectively.