The NACHI NJ308EG cylindrical roller bearing features a 40 mm bore diameter, 90 mm outer diameter, and 23 mm width, designed for high radial load capacity with a dynamic load rating of 83,000 N and static load rating of 81,500 N. It is a single-row NJ series bearing with a molded nylon cage for reduced friction and enhanced durability. The bearing is made from steel alloy, open type, and supports axial displacement in one direction, making it suitable for precise shaft positioning in industrial applications. Its compact dimensions and robust construction ensure long service life and reliable performance.