It was almost surly some kind of oil as there are holes between the cavities. That probably would not work with grease unless it was totally filled. I am thinking of a 140 weight synthetic gear oil. Am also going to research the manufacturer (BERCO)as there is a number on the casting and also...
Our T-590 with 1700 hrs had a roller (intermediate) that started screeching. I replaced it with a new one and like I do with most broken things have taken it apart to see what went wrong. to my surprise, it has 2 bronze bushings instead of bearings as I was expecting. Sealing is done by 2 large...