Couplings for machines; machine parts, namely, fixed side ball screw end support bearing blocks; machine parts, namely, bearings; bearing brackets for machines; shaft couplings for machines; spindles being parts of machines; electric motors for machines; high frequency motor spindles with high frequency electric converters and power supply units; machine parts, namely, screws; machine parts, namely, sliding rails; machine parts, namely, ball screws; machine parts, namely, linear guideways; ma...