By Joe Provey and Bob Vila | Updated Mar 15, 2021 1:14 PM
We may earn revenue from the products available on this page and participate in affiliate programs. Overhead Door Pusher Springs
For decades, homeowners interested in automating their garage doors had three choices: chain-, belt- or screw-driven openers. That has changed with the introduction of residential jackshaft and direct-drive models. Some of the conventional wisdom about the three standard options has changed, too.
DC motors are quieter, faster, smaller, lighter, smoother operating, and more efficient than AC motors. Many come with variable speeds, enabling soft-start and soft-stop technology. They can also be equipped with battery backup systems. With newer units, the battery is integrated with the opener motor housing. When the power fails, your garage door openers will continue to function for up to two days, depending upon how often you open and close the door. Battery backup will also ensure the continued operation of other functions, including garage lighting, security, and safety alerts. DC motors with brushes do not have the same life expectancy as AC motors, but brushless DC motors do.
Copyright © 2023 Acton Media Inc. All rights reserved.
Craftsman Garage Door Opener Torsion Spring Articles may contain affiliate links which enable us to share in the revenue of any purchases made.