low friction, high rigidity Good interchangeability easy installation Linear bush/bearing has the characterized of smooth movement, low friction, high rigidity and long life span,maintain or replace. Features: 1) Size:3 ~ 100MM2) Series: LM...LUU, LM...LUUOP, LM...LUUAJ, LME...LUU, LME...LUUOP, LME...LUUAJ.3) "LUU" means rubber seals on the both sides of the Long type bearing. 4) "LM" means ...