6pcs or 10pcs S6900-2RS 10x22x6 mm ABEC-7 Stainless Steel hybrid Si3n4 ceramic bearing 6900RS 6900 2RS fishing reel bearing 6pcs or 10pcs s688 2rs 8x16x5 mm abec 7 stainless steel hybrid si3n4 ceramic bearing 688rs 688 2rs cb ld fishing reel 8 16 5