Good question....4 SS bearings, which seems to be a minimum recommended.....and being a Penn reel, I believe the build quality will enhance the performance and lifetime of the reel.
As I. Got a few of them, and added one more today, Big Water...this is ~9.5 feet, and will use it for trolling a 2 rod system. I like the extended reach that make is easy to navigate and make my turns without lines getting close enough to tangle.
A case of Brooklyn summer ale
Handle of WL weller
Handle of mount gay rum
5th of el jimador silver
Handle of firefly
5th of stoli
and a bunch of mixers