Engineering Concepts and Units

Front

Actuator

Back

machines that convert fluid power into either linear or rotational motion.

Front

Bearing

Back

metal pieces that are used to reduce friction with shafts by using smooth metal balls inside circular pieces of metal that fit around the shaft.

Front

Fluid pump

Back

a device used to compress fluids in a hydraulic system.

Front

Gear ratio

Back

the ratio of the speed (angular velocity) of the input shaft to that of the output shaft.

Front

Horsepower

Back

a unit of work defined as 33,000 foot-lb/min.

Front

Mechanical advantage

Back

the number of times a machine or tool multiplies the input force to move a load.

Front

Pascal’s law

Back

a law that states that all fluids exert the same amount of pressure in all directions when in a limited space.

Front

Power

Back

the rate at which work is performed or energy is transmitted.

Front

Pulley

Back

a wheel and rope used to move objects.

Front

Rotary actuator

Back

devices that can provide a small amount of rotation.