Premium R4ZZ Inch Deep Groove Ball Bearings – Precision & Durability
High-precision R4ZZ bearings (6.35*15.875*4.978mm) with ultra-smooth carbon steel construction for minimal friction and extended lifespan. Shielded (ZZ) design prevents dust contamination while maintaining low-noise operation. Ideal for high-speed applications: DIY power tools, small motors, robotics, medical devices, and precision instruments. Heat-treated raceways and polished balls ensure consistent performance under heavy loads. Global wholesale pricing – bulk orders available with industry-leading quality. OEM/ODM compatible.