The angular-contact ball bearing is manufactured by EBI. It is designed with tolerance in accordance with ISO P0-P4. The unit features 7000-7040, 7200-7240, and 7301-7330, with suffix C, AC, and B. The quality can reach ABEC-7 with high speed application. Furthermore, the ball bearing provides a long service life. It is mainly used for applications for spindles of machine tools.