7 Electric motors other than for land vehicles; electric gear motors not for land vehicles; reduction gears for electric drives, other than for land vehicles, for use with machines in medical and laboratory technologies and in the industrial automation, robotics, aerospace and aviation industries; transmission gears for electric drives used with electric motors other than for land vehicles; components for couplings for machines and for transmission gears for machines, namely, linear bearings and ball screws; machine parts, namely, ball bearings, radial and linear ball bearings, 3-point contact bearings, 4-point contact bearings, angular contact bearings, self-aligning bearings, shaft bearings, bearings for oscillating mass, bio-compatible bearings, lubrification-free bearings, miniature bearings, bearings for micro motors; bearings for industrial assembly robots; components for the above-mentioned bearings, namely, balls and miniature balls; electric micro motors and miniature driving gears other than for land vehicles, and their components