corded vs cordless drills<\/a><\/p>\nBrushless motor<\/h3>\n
What about the brushless motor? Obviously, it doesn\u2019t have brushes, but it doesn\u2019t have commutator as well.<\/p>\n
So how does it works?<\/em><\/p>\nThe magnets and the windings are located reversely \u2013 magnets are on the motor shaft, while the windings are fixed around the shaft. Rather than the brushes and\u00a0commutator,\u00a0the energy is transmitted to the windings thanks to the circuit board.<\/p>\n
But this is just way too much science. Although I tried to make it as simple as possible, there are people who are not interested in this. Isn\u2019t there an easier way to understand the differences? Or, better said, can we compare both motor types?<\/p>\n
![\"\"](\"data:image\/svg+xml;base64,PHN2ZyB4bWxucz0iaHR0cDovL3d3dy53My5vcmcvMjAwMC9zdmciIHZpZXdCb3g9IjAgMCA5MjQgNDY2IiB3aWR0aD0iOTI0IiBoZWlnaHQ9IjQ2NiIgZGF0YS11PSJodHRwcyUzQSUyRiUyRnd3dy50b29sYXppbmUuY29tJTJGd3AtY29udGVudCUyRnVwbG9hZHMlMkYyMDE4JTJGMDQlMkZicnN1aGVkLXZzLWJydXNobGVzcy5qcGciIGRhdGEtdz0iOTI0IiBkYXRhLWg9IjQ2NiIgZGF0YS1iaXA9IiI+PC9zdmc+\")
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Brushed vs brushless comparison<\/h2>\n
Once you know the physics behind the motors, it is time to learn why would you choose one over the other.<\/p>\n
Note: If you are using a corded tool,\u00a0a brushed\u00a0motor is usually a better idea, this is because brushless tools are usually more expensive. <\/strong>However, if you decided to go for a cordless one, then you should definitively continue reading.<\/p>\nBrushed motor<\/h3>\n
Summary:<\/strong><\/p>\n\n- requires maintenance because of the carbon brushes<\/li>\n
- brushes create restrictions which reduces the power<\/li>\n
- fast battery drain<\/li>\n<\/ul>\n
Brushes constantly touch the commutator. Since the commutator is a rotary part, that creates friction<\/strong>.<\/p>\nWhy is friction bad?<\/em><\/p>\nFriction means heat, and friction creates wear. This means, the parts won\u2019t last forever, and once they are completely worn out, you will have to change them.<\/p>\n
Brushed motor provide the same amount of power at any time<\/strong>. If you are using a corded tool, this isn\u2019t something to worry about, but, if you have chosen a battery operated tool, this will drain the battery very fast.<\/p>\nLastly, brushed motors are much cheaper<\/strong> than brushless.<\/p>\nBrushless motor<\/h3>\n
Summary:<\/strong><\/p>\n\n- no brushes=no friction=longer life<\/li>\n
- no restrictions mean\u00a0more power<\/li>\n
- longer battery life due to its efficient usage<\/li>\n<\/ul>\n
In brushless motors, there are no brushes which\u00a0mean\u00a0no friction<\/strong>. Because of this, they are more efficient and have a longer lifespan.<\/p>\nMost of the brushless motors have electronic sensor capabilities on the circuit board. Thanks to those sensors, the brushless motors get information about the toughness of a task, so you will be able to change the amount of power<\/strong>.<\/p>\nWith this feature, you will drain your battery less, as you will save power in some situations.<\/p>\n
Finally, the price. Brushless motors are great in so many ways, but they also cost much more<\/strong>.<\/p>\nRelated:<\/strong>\u00a0Corded vs cordless circular saws<\/a><\/p>\nWhich one is better?<\/h2>\n
Manufacturers are pretty sure about this technology, but is this really so good? Check this numbers.<\/p>\n
\n- brushless motors have 10 times longer life<\/li>\n
- brushless motors have up to 50% more run-time<\/li>\n
- brushless motors have up to 25% more power<\/li>\n
- brushless motors are 30% more expensive<\/li>\n<\/ul>\n
Additionally, I would recommend looking at the video below. You will be able to see testing three similar power tools – two with a brushed, and one with a brushless motor. I won’t tell you the results.<\/p>\n