B7238-C-T-P4S-UL

The B7238-C-T-P4S-UL is a high-precision angular contact ball bearing engineered specifically for the rigorous demands of machine tool spindles and other high-speed, high-accuracy applications. As a member of the 72 series, this bearing is designed to handle both radial and axial loads, providing exceptional rotational accuracy and system rigidity. The 'C' in its designation indicates a 15-degree contact angle, a configuration optimized for accommodating high radial loads while maintaining excellent speed capabilities. Its P4S tolerance class signifies a superior level of dimensional and running accuracy, ensuring minimal runout and contributing to enhanced surface finishes and machining precision in the final application.

Key to its superior performance at high RPMs is the 'T' designation, which specifies a window-type cage made from textile-laminated phenolic resin. This lightweight yet robust material produces minimal friction and centrifugal force, allowing for cooler operation and extended service life even under extreme rotational speeds. The 'UL' suffix denotes a universal design with a light preload, which means the bearing is manufactured for versatile mounting in sets (such as back-to-back or face-to-face arrangements) to achieve precise preload without the need for shims or spacers. This combination of advanced materials, tight tolerances, and optimized geometry makes the B7238-C-T-P4S-UL a critical component for achieving unparalleled speed, precision, and reliability in modern machining centers.

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