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Metal gears must be _______________, which is accomplished with gear oil.

User Bamba
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Final answer:

Metal gears must be lubricated with gear oil to reduce friction and wear between the gear teeth.

Step-by-step explanation:

Metal gears must be lubricated

, which is accomplished with gear oil. Lubrication is necessary to reduce friction and wear between the gear teeth, allowing them to mesh smoothly and transfer power efficiently. Gear oil forms a thin film between the gear teeth, providing a protective barrier and enhancing the lifespan and performance of the gears.

User Nixn
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