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-- See Also the narrower term Bearings (Machinery)
Here are entered all works relating to the supports used in engineering, and more particularly in machinery, especially for the moving parts.
--subdivision Bearings under types of land vehicles, e.g. Automobiles--Bearings

-- See Also Friction

-- See Also the narrower term Lubrication and lubricants

--individual lubricants, e.g. Rosin oil; and subdivision Lubrication under types of land vehicles, e.g. Automobiles--Lubrication

-- See Also the narrower term Mechanical wear

-- See Also Surfaces (Technology)

--subdivision Surfaces under individual materials and chemicals, e.g. Metals--Surfaces; Copper--Surfaces