The SKF 6307-2Z is a deep groove ball bearing with double metal shields (2Z), featuring a 35mm inner diameter, 80mm outer diameter, and 21mm thickness. Made of high-carbon chromium steel (GCr15) with a pressed steel cage, it is optimized for dry, dusty environments (e.g., mining screening equipment, cement production lines, warehouse machinery). It handles radial and bidirectional axial loads, offering low friction, excellent dust protection, and long service life.