Product Description
Fits Shimano Curado 100 casting reels with drive shaft bearing part #BNT0031. Ball bearings are rated in a classification system know as ABEC....Annular Bearing Engineering Committee. Bearings in the ABEC system are all called 'precision bearings' and rated from 1 to 9, 9 being the highest precision. The numbers jump from 1 to 3 to 5 to 7 to 9. A 'standard' bearing is an ABEC 1, a super expensive bearing is an ABEC 9. Shimano's come stock with an ABEC 3 bearing in them.
Bearing size is 5 x 9 x 3mm. Si3N4 Ceramic balls.