The Pro-Reel 8049t-p (same as ) has a weak point which breaks commonly. These reels are installed in many locations by my employer, and fail often. Newer locations use a better reel, but we go through many of these each quarter that fail in the exact same manner.
The plastic casting that holds the spring side of the axle isn't strong enough and shatters.
I've fixed many of these now by potting the area around the axle hole with epoxy, putting halves together using axle bolts until epoxy cures, then take apart and wind the cord 3-4 times for pre-tension.
See pictures.
https://photos.app.goo.gl/wLfdJLJdXuGrVc7Q6`