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.

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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.

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