1. Product Overview LYS 210 2F is large spherical outer insert bearing fitted with bilateral 2F composite labyrinth seals and anti-loosening eccentric locking collar, interchangeable with YEL210-2F standard model. The eccentric collar wraps full shaft circumference to deliver uniform clamping force, effectively preventing inner ring slipping under heavy impact and continuous vibration. Two-stage 2F seal with rotating metal flinger and NBR rubber lip blocks farm mud, crop