7000-7040, 7200-7240, 7301-7330, with suffix "C", "AC" and "B".
Quality can reach ABEC-7 (P4), with high speed application.
Accuracy: tolerance from ISO P0-P4 (US ABEC-1---ABEC-7).
Low noise: z1--z3 at accelerated velocity value and zv1--zv3 at velocity value.
Working life: In accordance with ISO standards