7 Bearings for use in aircraft engines, namely, anti-friction bearings, namely, straight roller, tapered roller, spherical roller, cylindrical and hourglass roller, needle and ball bearings; ball slide bearings for machines and aircraft engines; ball, roller and needle thrust bearings for machines and aircraft engines; needle and bearing races for machines and aircraft engines; self-aligning spherical plain bearings and rod ends, bushings, cage and roller assemblies for machines and aircraft engines; plain bearings for machines and aircraft engines; aftermarket aircraft engine parts, namely, anti-friction bearings, namely, straight roller, tapered roller, spherical roller, cylindrical and hourglass roller, needle and ball bearings; ball slide bearings; ball, roller and needle thrust bearings; needle and bearing races; self-aligning spherical plain bearings and rod ends; bushings; cage and roller assemblies; plain bearings; fasteners being a machine and aircraft engine part; hydraulics actuators, valves, seals, rings, and alignment joints, and control and structural rods all being machine and aircraft engine parts; precision machined components for engines, namely, fasteners, hydraulics actuators, valves, seals, rings, and alignment joints, and control and structural rods; gears for machines