Nylon Roller/Steel roller
Diameter: 2”, for 2” track only
Stem: 4”/ 7 ball, 10ball
The roller is like the tire on your car, and you have almost no luck once you go out. Nylon coated steel rolls have good performance with nylon sleeves and steel bearing cores. Nylon coated steel rolls have a lifetime warranty. In addition to good springs, nylon rollers are the most important one in your garage door life.