The Nachi R8ZZ is a high-quality deep groove ball bearing featuring a 1/2 inch (12.7 mm) inner diameter, 1-1/8 inch (28.575 mm) outer diameter, and 5/16 inch (7.938 mm) width. It is double shielded with metal shields to protect against dust while allowing high-speed rotation, supporting speeds up to approximately 26,000 RPM. Made from premium Japanese steel, this bearing offers durability and precision with a radial load capacity around 2400 N and axial load capacity near 5120 N. Its compact dimensions and robust construction make it ideal for applications requiring reliable, low-friction performance in tight spaces.