Advantages
Low friction in ball screws yields high mechanical efficiency compared to alternatives. A typical ball screw may be 90 percent efficient, versus 50 percent efficiency of an Acme lead screw of equal size. Lack of sliding friction between nut and screw lends itself to extended lifespan of the screw assembly (especially in no-backlash systems), reducing downtime for maintenance and part replacement and decreasing demand for lubrication. This, combined with overall performance benefit and reduced power requirements may offset the initial costs of using ball screws.
Read more about this topic: Ball Screw
Famous quotes containing the word advantages:
“There are great advantages to seeing yourself as an accident created by amateur parents as they practiced. You then have been left in an imperfect state and the rest is up to you. Only the most pitifully inept child requires perfection from parents.”
—Frank Pittman (20th century)
“Men hear gladly of the power of blood or race. Every body likes to know that his advantages cannot be attributed to air, soil, sea, or to local wealth, as mines and quarries, nor to laws and traditions, nor to fortune, but to superior brain, as it makes the praise more personal to him.”
—Ralph Waldo Emerson (1803–1882)
“The respect for human rights is one of the most significant advantages of a free and democratic nation in the peaceful struggle for influence, and we should use this good weapon as effectively as possible.”
—Jimmy Carter (James Earl Carter, Jr.)