A linear actuator takes energy input in a rotary form and converts it to a straight-line output to perform motion functions. The simplest example of a linear actuator is a common automotive scissors jack. Cranking the rotary handle clockwise turns a screw that pushes a drive nut, expanding the scissors and causing the jack to rise in an upwards linear direction. Cranking counter-clockwise moves it straight back down. Linear actuators may operate from simple mechanical input, like a jack, or electro-mechanical input from a precision stepper motor for accuracy. They can also be driven by hydraulic or pneumatic pressure for applications requiring substantial actuation force.
This post was created by a user and has not been vetted or endorsed by BuzzFeed's editorial staff. BuzzFeed Community is a place where anyone can post awesome lists and creations. Learn more or post your buzz!
- The top Democrat in Washington, Chuck Schumer, says New York City shouldn't pay for Trump's security, he told BuzzFeed News.
- Today is Trump's 100th day in office. We found an average of about one false statement per day from him and his aides so far 💯
- A luxury event called Fyre Festival turned into a total disaster — and it's shows how insane and competitive the industry has become 😱
- The story of two lesbian Chinese billionaires who got married and became the richest couple alive has gone viral, but it's fake ❌