SNR 71912HVDUJ74 Angular Contact Ball Bearing

The SNR 71912HVDUJ74 is a matched duplex set of super-precision single-row angular contact ball bearings designed for high-speed, high-accuracy spindle applications. Each bearing has a 60 mm bore, 85 mm outside diameter, and 13 mm width per bearing (26 mm for the matched pair), with a 25° contact angle, an open cage of phenolic resin, and is made from high-carbon chromium steel to deliver the rigidity and low-friction performance essential for precision machine tools. The universal duplex configuration allows back-to-back, face-to-face, or tandem mounting while maintaining preload and spindle accuracy, and the assembly is designed for high rigidity and very low runout in demanding environments. Rated to ISO Class 4 (P4) precision, the set supports high-speed radial and axial loads with exceptional accuracy, making it suitable for CNC machining centers, grinders, lathes, and other precision spindle assemblies. Manufactured by SNR (NTN-SNR), the MPN 71912HVDUJ74 is a common replacement option in spindle rebuilds, with replacements including NTN 71912HVDUJ74, SKF 71912 ACD/P4A, and FAG HS71912-C-T-P4S-UL.