The E-design bearing has a smaller contact fit and a maximum number of smaller balls. Therefore, it can accommodate very high speeds, but does not achieve the same high load carrying capacity as the D design bearings. Compared to the B design bearings, the E design bearings have better high speed performance and heavy load carrying capacity.

719... E and 70.... E series bearing applications:
    Electric spindles (Figure 5)
    High-speed machining centers (Figure 6)
    High-speed milling machines
    High-speed internal grinding machines
    Spindles for PCB drilling
    Woodworking machine tools

Figure 5

Figure 6