E20 belongs to the E series magneto type ball bearings. It is a separable single-row ball bearing and is usually used in pairs. Model E20 EN20 L25 M25 Brand ZH Material Chrome Steel precision P0 P6 P5 P4 Product Description 1. Magnetomotors, small permanent magnet generators, ignition motors 2. Gyroscopes, precision instruments, flow meters, speed measuring devices 3. Spindles of small power tools, engraving machines, and sweeping machines 4. Miniature speed reducers, shaft