Features: <br>These bearings are made of high quality steel for low noise and long service life. <br>They are double shielded to avoid contaminants entering and save lubricant. <br>There are several different types and sizes of bearing that you can choose as needed. <br>These are great for small hobby projects, suitable for both professionals and enthusiasts. <br> <br>There comes total 10 pieces bearings which you may use for many different projects. <br> <br> <br>Specification: <br>Model(Optional) Inner Diameter Outer Diameter Thickness <br>607-ZZ 7mm / 0.3in 19mm / 0.7in 6mm / 0.2in <br>608-ZZ 8mm / 0.3in 22mm / 0.9in 7mm / 0.3in <br>609-ZZ 9mm / 0.4in 24mm / 0.9in 7mm / 0.3in <br> <br>Cage material: Steel plate <br>Type: Deep-groove high-speed <br>Usage: Universal <br>Rolling Element: Single row steel balls <br>Bearing Material: Bearing steel <br>Angle: 15 degree <br>Sealing: Double shielded <br>Quantity: 10pcs <br> <br> <br>Package list: <br>10 * Bearings<br>1、These bearings are made of high quality steel for low noise and long service life. <br>2、They are double shielded to avoid contaminants entering and save lubricant. <br>3、There are several different types and sizes of bearing that you can choose as needed. <br>4、These are great for small hobby projects, suitable for both professionals and enthusiasts. <br>5、There comes total 10 pieces bearings which you may use for many different projects.