The HFH B71903-C-T-P4A-UL is a high-precision angular contact ball bearing designed for demanding machine tool spindle applications. This genuine HFH bearing features a 17 mm inner diameter, 30 mm outer diameter, and 7 mm width, ensuring precise rotational accuracy and rigidity. Manufactured to P4A (ABEC-7) precision standards, it is suitable for high-speed operation and maintains optimal performance under various loads. The 'UL' designation indicates a universal match for duplex mounting, providing flexibility in installation. This bearing is a critical component for maintaining the accuracy and efficiency of industrial machinery.