Over load, misalignment, no maintenance. water / moisture entry
Thermocycling.
Some of the major causes of amblyopia are as follows: Strabismus.Anisometropia.Cataract.Ptosis.Nutrition.Heredity.A misalignment of the eyes (strabismus) is the most common cause of functional amblyopia.
uneven induction hardening pattern
Age, misalignment, wrong tension, prolonged lunatic clutch dropping.
It is called thrust.
Misalignment of the foot and overpronation are the leading causes of knee pain. These can lead to osteoarthritis or torn ligaments.
Communication in engineering is not only important, it is critical. A lack of good communication causes misalignment's, gaps, disconnects, delays, etc.
Try checking for the crankshaft sensor
The pistons, which in turned are moved by the expansion of gases caused by the combustion of fuel.
And engine knock is normally caused but I worn crankshaft bearing or rod bearing.
Chain skipping in bicycles can be caused by worn chainrings or cassette cogs, a stretched chain, misalignment of the derailleur, or a dirty or improperly lubricated chain.