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

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.

Comments (0)
Number of views (1036)
Article rating: No rating

Posted by Anonym on Tue, Oct 16 2018 @ 8:30 AM

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.

Comments (0)
Number of views (3487)
Article rating: No rating

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

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.

Comments (0)
Number of views (2613)
Article rating: No rating