The only other thing I can think of is one or both of the circled bearings are worn.
When the weight of the roll gets on these rollers they move causing the chain to get slack in it.
These are really good blades for the money & heavy built. I bought one about a year ago. The price varies a lot from one dealer to the next.
https://www.tractorhouse.com/listings/farm-equipment/for-sale/205476871/2021-industrias-america-165
It is Cedar Apple Rust. There are fungicides to control it.
If you have apple trees it will cause spots on the leaves as well as the apples. It seems to stunt the growth of the fruit too.
Fedex is hands down the absolute worst here. Every delivery is rescheduled 2-3 times before it gets here.
We had a package delivered Friday night about 7pm, there was another package scheduled for delivery on Saturday. That package was rescheduled & we had to call FedEx because the driver...