The oil helps slick the two surfaces so that the molecular surfaces become easier to slide on with less friction.
Julia Blander :P
You would put a lubricant - oil or grease - between the moving parts.
oil
they reduse the friction between the machine parts.
ligament
a "lubricant" is a friction-reducing substance: a substance, typically oil or grease, applied to a surface to reduce friction between moving parts
You would put a lubricant - oil or grease - between the moving parts.
oil
The grease is there to lessen friction between two metal parts. Without grease the moving parts would heat up due to the friction.
Oil is used as a lubricant in many large machines in order to reduce the friction between two or more moving parts.
It's to reduce friction (and thus heat) generated while the machine's parts are moving.
Ideal Machine
Ideal Machine
to reduce friction
Machines heated up due to the friction caused due to their running internal parts. That's's why machines are oiled or greased to reduce friction and to produce less heat
to reduce friction between the parts of a car
they reduse the friction between the machine parts.
ligament