The NTN 6309ZZC4/5K is a genuine NTN deep groove ball bearing engineered for reliable performance. It features a 45mm bore, 100mm outer diameter, and 25mm width. This bearing is equipped with two non-contact metal shields (ZZ) on both sides to protect against contaminants and retain lubricant. It has a C4 internal radial clearance, which is greater than standard C3 clearance, making it suitable for applications involving high speeds, significant temperature variations, or where press fits are used. This high-quality bearing is designed for durability in various industrial and agricultural machinery applications.