The R12-ZZ is a highly durable, single-row deep groove ball bearing belonging to the classic inch-sized (imperial) series. Engineered to accommodate a standard 3/4-inch shaft, this bearing is outfitted with dual pressed steel shields (ZZ). These non-contact metallic closures are designed to effectively block particulate contamination and retain factory lubrication without introducing the frictional drag associated with rubber seals. As a result, the R12-ZZ delivers an optimal balance of robust load-carrying capacity, high-speed capability, and extended service life for moderately demanding industrial environments.