A Quantity of 10 -- 11 Ball Nylon Garage Door Rollers
QTY. (10) Rollers 2" Nylon 4" StemThe approximate shaft length is 4", the roller diameter is 1.75" for a 2" track, and the shaft diameter is 7/16".Rating: 125lbs per roller @> 20,000 cyclesReplacing your garage door rollers with high quality white bearing rollers can Dramatically quiet your noisy door down. When the standard metal rollers wear it causes the roller casings to loosen over time creating noise as the garage door tracks up and down.