Size Name:2 Pack  |  Style:2" wheels, 4" stem  |  Color Name:Durable steel Product Description Replacement garage door rollers for home use. Perfect for replacing old, worn, noisy, or broken rollers. Garage door rollers are easy to replace yourself.Steel wheels with 10 ball-bearingsStandard wheels are made of nylon and wear out. Our solid steel wheels offer the ultimate in durability, so you can be sure they'll last for years to come. Each roller contains ten ball bearings, for smooth operation. Sizing detailsThese rollers come in multiple sizes:Wheel diameter:The 2" wheels have an actual diameter of 1-13/16". They fit the 2" tracks on most residential doors (SK7121 / SK7171).The 3" wheels have an actual diameter of 2.8". They fit wider 3" tracks (SK7124 / SK7125).Stem/shaft length:The stem slides into the hinges on the outer edge of the door (for hinges, see our SK7101 / SK7102 / SK7103).4” stems are for standard single-hinge installations (SK7121 / SK7125 / SK7171). 7" stems are for heavier double-hinged doors (SK7124). For best resultsThe average residential garage door has 10 rollers on it. For smooth and easy opening and closing, and to extend the life of the electric door opener, change all rollers at the same time or when adding a new electric opener. Always work carefully and secure the door before starting your replacement. From the Manufacturer 1-7/8-Inch steel rollers. 10 ball bearings for smooth operation. 2 per pack. 4-Inch long stem.
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