1. Product Overview LYS 208 2F is a large metric spherical outer insert ball bearing with bilateral 2F composite labyrinth sealing assembly and integrated eccentric locking collar, interchangeable with YEL208-2F standard series. Unlike set-screw locked LES/LSS series, its offset eccentric collar wraps the full shaft circumference to achieve uniform clamping force, which resists slipping under heavy alternating impact and vibration loads. The exclusive 2F dual-stage sealing