I bought a used Taiwaneze wood/metal cutting bandsaw off eBay a few years ago. It ran fine but it was 20 years old so I decided to do a major servicing while I had it broke down.
I pulled the gearbox off (all of the cover bolts where loose to begin with which is what prompted me to open it up) and I'm glad I did. The 20 year old grease was like wax and most of it wasn't even in contact with the gears anymore... I took a couple of pics after I opened it, check 'em out... I scraped out about a cups worth of old grease...
I also noticed some growling in the gearbox when it was running and I found a couple of bad bearings. Not super bad but one was installed backwards with the seal towards the inside of the box so it was pretty much running dry from day one. I will be replacing both bearings on the input shaft with double sealed bearings. The others are fine and run nice and smooth.
I ordered new bearings from this place...
I pulled the part no. off the bearing and plugged it into their search engine and I had them ordered in less then 5 minutes. $5.85 apiece and exactly what I need.
I ordered bi-metal blades from Enco. If you need blades check them out. I also ordered a couple for my H/V saw. The 64 1/2" blades are less then 13 bucks for bi-metal... Not to bad.