1. Product Overview LEU 206 2F integrated vertical V-shaped grey cast iron bearing unit, matched with YAR206-2F double set screw insert bearing with extended inner ring. Bilateral 2F composite seal adopts centrifugal metal flinger + NBR rubber lip two-stage labyrinth barrier structure. Two symmetric M6 set screws lock extended inner ring for stable bidirectional forward & reverse rotation. Spherical outer ring provides ±2.5° self-alignment to offset shaft assembly misalignmen