The POM 6809 is a lightweight, corrosion-resistant plastic radial ball bearing measuring 45 mm inner diameter, 58 mm outer diameter, and 7 mm thickness. It typically uses polyoxymethylene (POM) polymer raceways combined with glass or stainless steel balls. Model POM6809 PP6809 PEEK6809 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description The POM 6809 bearing is a thin-walled deep groove ball bearing with an inner diameter of 45mm, an outer diameter of 58mm