B7216-C-T-P4S-UL

The B7216-C-T-P4S-UL spindle bearing is a premium, single-row angular contact ball bearing meticulously engineered for applications demanding extreme precision and high rotational speeds. Its P4S tolerance class signifies superior accuracy, ensuring exceptionally smooth operation and minimal runout, which are critical for machine tool main spindles, high-speed grinding machines, and precision rotary tables. The 15-degree contact angle, combined with a textile laminated phenolic resin cage (indicated by "T"), allows for operation at elevated temperatures while maintaining cage integrity and offering a light preload ("UL" designation) for enhanced rigidity and reduced vibration.

This bearing's design offers significant advantages in accuracy and speed capability. The "UL" designation also implies a universal pairing, allowing for flexible configurations in tandem or face-to-face arrangements to handle combined radial and axial loads with high stiffness. The robust construction from high-quality materials provides excellent load-carrying capacity and durability, even under the stringent conditions of high-speed rotation. The precise dimensions-an 80mm bore, 140mm outer diameter, and 26mm width-ensure compatibility with many standard machine tool designs, making the B7216-C-T-P4S-UL a reliable choice for optimizing the performance and longevity of precision rotating machinery.

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