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Roller and Hinge Replacement

Rollers reach the end of their life together, because they have all done the same work. Replacing two among eight tired ones produces a door that is still noisy and a second visit later.

The signs a set is finished are a wheel that will not spin freely under finger pressure, visible flat spots or cracking on nylon, rust bleeding out of a bearing, and noticeable side to side play when a wheel is rocked on its stem.

Sizing matters. Stem length and wheel diameter have to match the track and hinge. A roller that is nominally correct but has the wrong stem length sits proud in the hinge and wears at an angle.

Hinges get replaced alongside rollers when a seized roller has been skidding, because the sideways load bends the hinge and a bent hinge holds the next roller crooked too.

The middle and upper rollers are approachable. The bottom rollers sit in brackets attached to the lift cables and are under spring tension, which is a different job entirely.