Premium garage door rollers designed for residential standard 2” garage door track, ensuring smooth and reliable operation for roll up doors. Each garage door roller features 13 ball bearings, supporting up to 125lbs per roller and rated for 50,000 to 75,000 cycles—ideal for heavy-duty garage door parts and hardware. Nylon construction provides ultra-quiet performance, making these garage door wheels perfect for minimizing noise in your garage door system. Built-in lubrication groove disperses grease evenly, extending the life of your garage door rollers and reducing maintenance for roll up door applications. Convenient package includes 12 high-quality garage door rollers, compatible with most garage door hinges and rollers—an excellent alternative to a garage door rollers 10 pack. Nylon sealed rollers provide premium benefits to standard rollers on quietness and strength along with the added benefit of being totally sealed. The weight rating for sealed nylon rollers is 100+ pounds per roller with 50,000 life cycles. Overall Length: 4-5/8” Shaft Length: 4-1/8” Shoulder Width: ½” Shaft Diameter: 7/16” Wheel Thickness: ½” Wheel Diameter: 1-13/16” Fits Residential Standard 2” Track 13 ball bearing rating: 125lbs per roller @ 50,000 to 75,000 cycles Roller has a lubrication groove to disperse lubrication over a long period of time Nylon for ultra quiet operation 13 Balls for more durability Nylon shells around steel wheels for the ultimate combination of quiet and durability