motor type

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What is the difference between a brushed motor and a brushless mower?
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Marty Graff

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Posted 2 years ago

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Blue Angel, Champion

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Easiest way is to give you a link:
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Jack Parker

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The first and oldest motors used little carbon brushes which connect the electric power input to the armature (Center moving component) of a motor in a sliding contact. This sliding contact wears out the brushes over time so that they must be replaced. By contrast, the newer brushless motors use a more sofisticated switching technology of the power going into the motor to eliminate the need for those wear proan brushes. Thus, brushless motors will last longer, be worth more and also not produce all the dirty carbon brush dust in and near the motor.
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Blue Angel, Champion

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If designed and controlled well they can also be more efficient than brushed motors. It must be said though, that many brushless tools have proven inferior to brushed designs.

Putting the word “brushless” on the box doesn’t automatically mean it’s a superior tool. It’s been a very powerful marketing term in recent years. Take it for what it’s worth. ;-)
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I'm in agreement with Blue Angel that "brushless" while newer technology isn't always a superior technology.  While I've had few issues with brushless motors in smaller tools, I haven't always had luck with brushless on larger power tools such as lawn mowers and snow blowers. The brushless "auger motor" in one of EGO's competitors 2-stage battery powered snow blowers went out twice on me. After a total of three exchanges, I got my money back.  The reliability of a product is proven by its history  and usually not on what is in the marketing brochure.
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A bunch of the reliability aspects go not just into the motor as usually it's just fine, brushed or brushless, but brushless motors require speed controller circuit boards and whatever components they may require, which vary from tool to tool and build to build. Brushless motors themselves are generally extremely reliable, but their control systems are usually what fail when the tool fails in my experience.