SKF NNU4930SP Double Row Cylindrical Roller Bearing

SKF NNU4930SP is a super‑precision, double‑row cylindrical roller bearing from SKF’s NNU family, engineered to carry heavy radial loads at high speeds with exceptional stiffness. It employs two rows of rollers to provide rigid support and even load distribution between the inner and outer rings, making it well suited for precision spindle and machine‑tool applications where minimal deflection is crucial. For the 150 mm bore version, practical dimensions are 150 mm bore, 210 mm outer diameter, and 60 mm width, aligning with common SKF catalog parts and enabling straightforward mounting in standard housings. Typical uses include CNC machine spindles and precision grinding equipment where reliable radial load capacity and stiffness at speed are essential.