These premium ABEC-9 rated ball bearings deliver exceptional performance and reliability for your mechanical applications. The 2-piece set features both ZZ double metal shields and 2RS rubber seal options, providing superior protection against dust, debris and moisture infiltration. Precision-engineered from high-grade chrome steel, these bearings ensure smooth, quiet operation and outstanding durability. The versatile sizing makes them compatible with multiple applications across various models and machinery types. Whether you're working on automotive transmissions or industrial equipment, these bearings offer the perfect combination of precision, protection and longevity. The double-shielded design helps maintain proper lubrication while minimizing maintenance requirements. With their professional-grade construction and ABEC-9 tolerance rating, these bearings are built to handle demanding applications while maintaining optimal rotational performance.