7 Roller bearings and sliding bearing machines for use in linear movement; rolling gearings, namely, ball screws, planetary gear transmission and worm steering gear; spherical rollers, roller bearing rollers, roller bearing balls, bearing sleeves and bearing housings, roller bearing cages; seals as parts of bearings; shaft bearings, shaft support bearings and shaft struts; machine tool parts, namely, machine feeders for feeing work pieces to work piece machine tools and for their transportation to particular tables and carriages; mechanically driven handling units which operate in conjunction with machine tools and installation apparatuses for gripping, holding, depositing, turning, pushing and removing work pieces and tools, pneumatically,hydraulically, mechanically and/or electrically operated actuating units for machines tools and for work piece feeding machines; conveying systems comprising of belts, bands and chains, conveyor belts, conveying chains, lifting, rotating and tilting apparatuses, lifting/traversing units, work piece carriers; drive chains and drive machines, except for land-borne vehicles; belt conveyors and belts for machines; electric motors, except for land-borne vehicles; conveyor belts, conveying machines; freewheels, except for land-borne vehicles; cardan joints; loading apparatuses, derricks and loading ramps; conveyor belts for conveying goods; roller bearings; conveyor belts; drive chains, except for land-borne vehicles; hydraulic drives for machines and motors; industrial manipulator machines; systems for providing the organization of materials, tools, boxes or cases; pneumatic valves and cylinders; drive machines, namely, electric motors;machine parts for linear movement technology apparatuses, namely, spherical guide bushings, structural units for linear guides, linear and cross slides, transfer and cross tables, rail guides and rail guide tables, ball screw drives; pneumatically, mechanically and/or electrically operated actuating units for machine tools and work piece feeding machines; bearing brackets for machines; systems in particular modular construction systems, modular design systems or unit assembly systems comprising the above-mentioned goods; industrial machines tools and processing machines