Kingwood sits on the far edge of our coverage, about 18 miles out from Morgantown, and the housing here skews older than what we see closer to the city. Morgantown's stock has a median build year of 1983; Kingwood's is 1970. Thirteen years matters on a garage door. A house built in 1970 almost never came with nylon rollers. It came with steel, running in a track that's had fifty-plus winters of grit, road salt carried in on tires, and temperature swings to work on it.
This region sits in a cold-severe climate band, and that's the whole story for rollers. Steel wheels don't flex the way nylon does when the metal contracts in a hard freeze. Every open-close cycle in January is a little more wear on the stem and the bearing than the same cycle would put on in June. Over enough winters the roller wears oval, then it starts binding in the track, and you hear it before you see it - a grind or a bark every time the door passes a certain point.
We're not guessing at Kingwood's housing stock; it's an older pocket relative to the rest of where we work, and that's exactly why steel-roller wear shows up here more than it does on newer builds closer to Morgantown.