The Nachi 6311ZZEC3 is a genuine Nachi deep groove ball bearing, engineered for high performance and durability in various industrial applications. Featuring a 55mm bore, 120mm outer diameter, and 29mm width, this bearing is double shielded (ZZ) to protect against contaminants and retain lubricant. It includes C3 internal clearance, which is greater than normal, allowing for thermal expansion and misalignment, making it suitable for applications with higher operating temperatures or where slight misalignment may occur. With a dynamic load rating of 72.5 kN and a static load rating of 48.5 kN, it provides reliable operation. This bearing is designed to meet stringent quality standards, ensuring long service life and efficient power transmission.