The 1621-ZZ P/6 Deep Groove Ball Bearing by Consolidated Bearings is engineered for optimal performance in demanding environments. This bearing features a precision steel construction with a protective zinc coating, ensuring longevity and resistance to environmental factors. With a 21mm inner diameter and a 45mm outer diameter, it is perfect for applications in machinery and automotive sectors. The P/6 specification indicates a higher precision level, making it suitable for high-speed operations. The dual metal shields provide excellent sealing against dirt and moisture, ensuring consistent lubrication and reduced maintenance needs, compliant with ISO standards.