Most of the houses we work on in this area went up between 1956 and 1979, with the bulk clustered around 1970 across the six main areas we run trucks through. That means a lot of original garage doors and original hardware - steel rollers riding in tracks that were never built for forty-plus winters of the kind this region gets. Ashland sits in a cold, severe climate band, and that combination of age and cold is exactly what kills rollers.
Cold makes the grease in old roller bearings stiffen up, so the roller doesn't spin freely - it drags and grinds against the track instead of rolling through it. Do that every day for a winter and the roller wears flat on one side, or the stem bends, or it just seizes. On a house from the 1960s or 70s, that stem is usually steel-on-steel with no nylon bushing to take up the slack, so the wear shows up faster than it would on newer hardware.
We also see it worse on doors that sit on the shaded side of a house, where the track never gets a chance to warm up during the day. If your door's been grinding, jumping, or making a rhythmic thunk every few seconds as it opens, that's usually a roller telling you it's done, not a spring or an opener problem.