71912 CE/P4A

The 71912 CE/P4A is a single-row angular contact ball bearing designed for applications demanding exceptional rotational speed and a high degree of running accuracy. As part of the 719 series, it features a particularly compact and lightweight design, making it ideal for arrangements where space is at a premium. The "CE" designation indicates a 15° contact angle, a design choice that prioritizes high-speed capability and accommodates moderate radial loads and axial loads in one direction. This specific geometry minimizes friction and heat generation, which is critical for maintaining performance and longevity in high-revving machinery.

This bearing is manufactured to the P4A precision class, which signifies very tight dimensional and running tolerances. This superior level of accuracy ensures minimal runout and contributes to smoother, quieter, and more stable operation, which is essential for precision equipment such as machine tool spindles, high-frequency motors, and turbochargers. The 71912 CE/P4A is typically installed in pairs (duplex arrangements) to handle combined loads and provide precise shaft guidance. Its combination of high-speed design, precision manufacturing, and capacity for combined loads makes it a fundamental component for achieving superior performance and reliability in advanced, high-precision rotating systems.

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