The 71900 Series is the most popular choice for high-speed machine tool spindles requiring a balance between performance and space efficiency. With a slim cross-section compared to the 7000 series, these bearings allow for the use of larger, stiffer shafts to maximize system accuracy. Available in various contact angles (C, AC, CD) and preload levels, our 71900 range is designed to handle high radial and axial loads at elevated speeds. These bearings are essential for high-speed milling, grinding, and turning centers where precision and high-frequency stability are paramount.