7 [ Engines and motors not for land vehicles; machines for use in industry, agriculture, horticulture and forestry, namely, combines, harvesters, threshers, tillers, cultivators, plows, disk harrows, seeders, circular saws, concrete mixers, cutting machines, drilling machines, earth moving machines, stacking machines, and spraying machines; loading and unloading machines; ] bearings as parts of rotating machines, namely, linear ball bearings, thrust bearings, plain bearings, ball bearings, single and double-direction ball thrust bearings, single and double-row radial ball bearings, self-aligning and double-row self-aligning ball bearings, tapered roller bearings, spherical-roller bearings, clamping bearings, special antifriction bearings, angular-contact bearings, self-oiling bearings, oil-ring bearings, integral bearings, clutch release bearing; bearing cage being structural parts of machines; machine parts, namely, cylinders; journal boxes; journals; bearings for transmission shafts, being parts of machines; transmission gears for machines; ball-rings for bearings for machines; crank shafts for machines; shaft couplings for machines; axles for machines; crankcases for machines; motors and engines, structural parts for all the aforesaid goods