The NTN 6218LLUC3/5K is a genuine NTN deep groove ball bearing engineered for high-performance industrial applications. It features LLU contact rubber seals on both sides, providing superior protection against contaminants like dust and moisture, which significantly extends the bearing's operational life. The C3 radial internal clearance accommodates thermal expansion and minor misalignments, making it versatile for various operating conditions. The '5K' suffix denotes a specialized grease fill, optimized for specific performance requirements. With precise dimensions including a 90 mm bore diameter, 160 mm outer diameter, and 30 mm width, this bearing ensures reliable and efficient operation in demanding environments.