Hey mate. Great reels the Stradic FI series. I recently had a similar issue with my Saragosa 8000F. Although this reel doesn't use a bearing but a nylon bushing it was seized. I soaked the line roller in some Sunbeam Liquid Descaler I had laying around. Worked for me. Something like CLR should do the trick or any descaling solution really. I like to use Shimano Ace2 grease in this area to prevent penetration in the future. It's the salt that is the primary cause of failure hence why I rinse with warm water when I get home. Hope this helps.