The SKF 6218-2Z is a deep groove ball bearing with double metal shields (2Z), featuring a 90mm inner diameter, 160mm outer diameter, and 30mm thickness. Made of high-carbon chromium steel (GCr15) with a pressed steel cage, it is optimized for dry, dusty environments (e.g., mining machinery, grain processing equipment, automation lines). It handles radial and bidirectional axial loads, offering low friction, excellent dust protection, and long service life.