Posted by Andrew Zaske on Di, Nov 03 2020 @ 9:30

Actuator know-how for machine design engineers, Part 2

How to calculate for actuator life, whether to select a servo or stepper motor, and how to match a motor to an actuator.

Posted by Ryan Klemetson on Di, Aug 25 2020 @ 9:30

Roller screw technology for electric actuators

Roller screw actuators offer longer life and higher thrust in a smaller package compared to ball screw actuators.

The unique design of a roller screw actuator offers longer life and higher thrust in a smaller package compared to ball screw actuators, increasing a machine designer’s ability to create compact machine concepts. 

Posted by Andrew Zaske on Mi, Feb 12 2020 @ 8:30

High-force linear actuators. Roller screws vs. ball screws

Not too long ago the only solution for high-thrust linear motion was fluid-powered cylinders that used high-pressure air or hydraulic oil. Although these cylinders could provide the force required, they could not deliver on requirements for infinite positioning, speed control, and low maintenance.

Now there are electric rod actuators that deliver high forces and excel at the other criteria as well. Often these electric high-force linear actuators utilize ball or roller screws. However, it’s a challenge to choose the right screw technology for a high-force application.

Posted by Anonym on Di, Okt 16 2018 @ 8:30

Electric high-force linear actuator choices. Ball vs roller screw

Many applications require high-force linear actuators – from moving equipment in a foundry to powering a press in metal forming to guiding heavy logs in a sawmill.  Whatever the application, a machine designer is faced with a choice…whether to specify a ball or roller screw in the electric high-force linear actuator.

Posted by Gary Rosengren on Di, Jun 13 2017 @ 8:30

Which is best for high force linear actuators: Ball or roller screws?

If you’re selecting an electric high force linear actuator, you may believe you know the answer to the question in the headline.  The force transmission prowess of roller screws is well known.  But before you go to the expense of a roller screw linear actuator, take a careful look at the application.  You may find that a ball screw actuator will do the job.  And that could mean significant savings.

Posted by igor Glikin on Di, Feb 07 2017 @ 8:30

Acme, ball and roller screws for electric linear actuators

When you’re specifying a screw-driven electric linear actuator, you’ll need to consider the type of screw that best meets the needs of your specific application. Some manufacturers give you a choice so you can tailor the device precisely, and that’s a good thing since applications differ widely.

The basic types you’ll have to choose from are roller screws, ball screws and acme screws.  There’s quite a lot a machine designer needs to know about these electric actuator screw types and how to select the right one.  We offer a guide that helps your decision-making.

Posted by Gary Rosengren on Di, Feb 09 2016 @ 8:30

Electric linear actuator lead screws – article round-up

When it comes to specifying an electric linear actuator, selecting the right lead screw* (sometimes referred to as the leadscrew) for the application is critical. That’s because the screw is the major drive component in most electric actuators. After all, if it’s not a belt-driven actuator, then there’s a lead screw involved.