10Pcs Miniature Ball Bearings Small Double Shielded Metal Steel Roller 2 Types
10Pcs Miniature Ball Bearings Small Double Shielded Metal Steel Roller 2 Types Specifications:Material: Bearing steelInner Diameter: 3mm / 0.12″Outer Diameter: 8mm / 0.31″Thickness: 4mm / 0.15″Features:These miniature bearings are made of high quality bearing steel for low noise and long service life.They are double shielded to avoid contaminants entering and save lubricant.Bearings have a 3mm inner diameter, a 8mm outer diameter, and a 4mm thickness.These are great for small hobby 3mm shaft/rod projects such as 3D printer, quadcopter or ship model. Package Includes:10 x 693ZZ Bearing