DURA-LIFT Ultra-Seal 2" Nylon Garage Door Roller with Sealed Precision 13-Ball Bearing on 4" Stem (10 Pack)

The dura-lift ultra-seal 2 inch nylon garage door roller with 13-ball bearing & 4 inch stem 10-pack is a replacement roller Kit for old, noisy or broken sectional, track-style garage Doors. The sealed 13-ball bearing results in smooth operation of your garage door, and the seal protects the rollers from dirt and grime over time. Rollers can be installed on either side of your door in under an hour: the perfect DIY garage door project to reduce your garage opening and closing noise by up to 75 percent ! technical details 13-ball bearing and nylon wheel combine for extremely quiet door operation contains lubrication groove to disperse lubricating oil over an extended period of time sealed cap on roller prevents dirt and grime build up in bearing over time 4-5/8 inch long overall, with 4-1/8"" shaft, 1/2 inch shoulder, 7/16 inch shaft thickness 1/2 inch thick wheel, 1-13/16 inch wheel diameters can be installed on either side of garage door dura-lift 100 percent satisfaction guarantee