Today’s marvels of modern engineering are producing reels that have up to 12 or more bearings! Friction is radically reduced and smoothness is enhanced. But man, you really need to stay on top of the maintenance to keep them optimized. Some manufacture install Anti-rust bearings. Don’t be lulled into thinking that they are maintenance free. Got an Okuma spinning reel in the other day that had 9 bearings. Two on the spool shaft, two on the line guide, two in the reel knob, pinion bearing etc… most of the bearings are exposed to the elements and need at least some oil once or twice a season. All those bearings easily hide a failing bearing. I thought the reel was in good shape and performing fine when I got it. After cleaning and re-lube, wow much smoother and a huge difference.