Plastic Bearing POM 627 Glass Balls 7x22x7POM 627 Plastic Radial With Glass Bearing 7mm x 22mm x 7mm One Bearing POM 627 Plastic Radial With Glass Bearing, Bearing is Polymer Raceways with glass, Bearing inner diameter is 7mm, Bearing outer diameter is 22mm and Bearing width is 7mm. Item: POM 627 Bearing Type: Plastic Radial With Glass Bearing Material: POM (Polyoxymethylene) also know as Acetal Bearing Inner Diameter: 7mm Bearing Outer Diameter: 22mm Bearing Width: 7mm Size: 7 x 22 x 7 mm