Prolong machinery life

Any metal constructed moving part requires lubrication, so a key to prolong the life span of machinery is avoiding a critical situation, lack of lubrication. In another words, adequate lubrication for wear protection would continue old machinery in good innate condition, especially on hinge axis, ball and plane bearing, oscillating parts, any type of gears and sliding parts are effective. All the disassembled parts show some wear scar because of lack of adequate lubrication, if there were not any designing error on it. The age of mass production of disposable(?) consumption is finishing in some field since it has cleared the depletion of earth resources recently.
As a conclusion, I want to try to prolong any machinery I'm keeping now if I might be against the commercial distributions.