1. Product Overview LSS 205 2F is a standard metric small-size insert ball bearing fitted with spherical outer ring and double-sided 2F composite labyrinth sealing system. Its extended dual-side inner ring adopts two M6 set screws to lock firmly on 25mm transmission shafts, while spherical outer surface delivers ±2.5° self-aligning capacity to compensate slight installation deflection. The exclusive 2F seal combines metal flinger labyrinth and rubber contact lip to block fine