1. Product Overview LYF 205 2F four-bolt square grey cast iron flange bearing unit, matched with YEL205-2F eccentric lock insert bearing with double extended inner ring. Double-sided 2F composite seal adopts centrifugal metal flinger + NBR rubber lip two-stage barrier structure, the outer flinger can throw off mud and coarse debris by centrifugal force, inner rubber lip blocks fine dust and moisture. Eccentric locking collar clamps the double extended inner ring tightly to