The POM 627 bearing is a lightweight, corrosion-resistant plastic radial ball bearing measuring 7mm x 22mm x 7mm. It features acetal polymer (POM) raceways combined with glass or stainless steel balls. Model POM627 PP627 PEEK627 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description The POM 627 bearing is a hybrid plastic deep-groove radial ball bearing featuring Polyoxymethylene (POM/Acetal) resin rings and glass rolling elements. Measuring 7mm x 22mm x 7mm