SPQ13

This week I dissasembled a gearbox off of a sawdust blower. The gearbox was making a lot of noise when the pto on the tractor was turned on. As i suspected the bearing had broken apart and pieces of the bearing had gotten in between the two gears.

These are some of the metal pieces and ball bearings that I had foud inside the gear box

This is the pto shaft end. It has two bearings on it to keep it aligned. The inner bearing was the one that had failed and it also showed signs that the bearing had spun on the pto shaft from the excessive wear shown. The other bearings would have also needed to be replaced because they werent spinning as smoothly as they should have but they were no where near as bad as the one that had broken apart.

The gear on the left was the one that came off the pto shaft. It has a bunch of chips in almost all of the teeth. The gear on the right didnt have a bunch of chip taken out of the teeth on it like the other gear did. Just the tooth shown in the picture had the worst of it with a chunk taken out of the one gear tooth.

This gearbox will more than likely just be scap metal now because it has no markings on it to tell who made it. It looks like at minimum it will need two new gears, four bearings, and possibly an new pto shaft end. Since we have a spare gear box the cost trying to find and then getting the new gears is not really worth it.

This week = 25