CLASSIFICATIONS OF MECHANISMS 

Rotary transmission

Transmision of motion
* Linear transmission⇒ puley
* Rotary transmision⇒ gears

Linear transmission

Transformation of motion

* Rotary-linear⇒ rack and pinion

* Reciprocating rotary-linear⇒ crankshaft

Rotary-linear

Reciprocating rotary-linear

                                           

                     

Motion control

* Direction control⇒ ratchet

* Speed reduction⇒ brake

Speed reduction

Direction control

Energy accumulation
* Absorption/Dissipation⇒ spring

Connection
*Linkage⇒ clutch
*Support⇒plain bearning

Linkage (clutch)

Support (plain bearning)

CONSERVATION OF ENERGY AND WORK IN MECHANISMS
Mechanisms can´t create energy on their own. All mechanisms produce the same amount of work that is done to them, including energy that is lost to friction and heat.
If a mechanism increases force, it must decrease motion, in this way, energy and motion are conversed.