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      Tradesetter News and Updates

      BLDC Vs Brushed DC Motor

      BLDC Vs Brushed DC Motor

      While looking through our tool range, you might have come across the term 'brushless', which refers to the motor using electonical switching, rather than traditional mechanical brushes.

      This is an advanced technology, although it has existed since the early 1960's.

      Over time engineers have been able to develop newer and more complete versions of their predecessors to significantly address the challenges that are faced by the brushed motor.

      So why opt for this option over its brushed counterparts?

      Brushed Motors Have a Shorter Lifetime

      Due to their disposable nature in particular, brushed motors do not provide the longevity of its brushless equivalents.

      They are less cost-effective and more time-consuming, whereas brushless motors run cooler for longer.

      Brushless Motors increase Speed and Efficiency

      Although brushed power tools do provide a moderate level of efficiency, speed and acceleration, they fail considerably short of their brushless rivals. 

      At higher speeds brushed motors become irresponsive. Added resistance can also lead to slower acceleration and decelaration rates.

      Brushless motors can be engineered to reduce this resistance, however this is reflected in the cost. This enables smoother variation of speed and more reliable output.

      Brushed are much Noisier

      Torque ripple refers to the increase or decrease in output torque as the motor shaft rotates. This can create vibration and project mechanical noise, commonly observed by brushed power tools. Brushless power tools meanwhile transfer current more smoothly, thus reducing the torque ripple and therefore the noise!

      Electrical noise is also generated by the passing of current between rotations, which occurs when the motor turns and switches open and close. The brushes and commutator form an electrical switch. Brushless motors are quieter and far superior in this department.

      Brushless Motors are Smaller and Lighter

      Brushless motors on average are around two to three times lighter than their counterparts and are also more compact. They offer a high power-to-weight ratio making them great for being on-site!


      If you are looking for low maintenance, longlasting solution, then the brushless power tool is for you.

      These are higher performing overall, although they are not as inexpensive as brushed tools.