1. Product Overview LSS 207 2F is a medium-heavy metric spherical outer insert ball bearing built with dual-sided 2F composite labyrinth sealing system and symmetric double M6 set screws on extended full-length inner ring. The unique 2F sealing assembly integrates a metal anti-mud flinger and NBR rubber contact lip, forming dual-stage barrier to block thick mud, crop straw, abrasive dust and splashing water in harsh field environments. Spherical outer surface delivers ±2.5°