Question

why are oils and grease used in machinery​

Answer 1

Answer:-

• Reducing friction and reducing heat are only a couple of the reasons we use lubricants.Microscopic layer upon layer of the lubricant create friction with each other and form an oil wedge between the shaft and the bearing, protecting both surfaces.

Answer 2

Explanation:

because they prevent corrosion in metals chromium plating is also an useful one why prevents corrosion