Difference Between Brushless and Brushless Motors

Although there is not much to choose between brushed and brushless motors, this article serves as a guide for those who have difficulty choosing. Brushless motors constitute 90% of this market. Brushed motors are preferred in cases where the control level must be simple. We will explain the advantages of brushless motors and in which cases brushed motors should be preferred in our blog article. The main difference between the two types of motors is that one is brushed and the other is brushless. This is a detail that you can already understand from the name.

Brushed motors have a slotted iron core where the windings are connected to the commutator. Brushes carry current to these windings. In brushless motors, an electronic commutator is used instead of a physical commutator and brush when energizing the stator windings. It is a simple mechanical structure but has complex microprocessors and control architectures. 8 cables are required for controls to the motors. Brushless motors are simple and logically complex. Brush motors are the exact opposite. Brushed motors have commutator bars and brush assembly. 2 or 3 cables are needed for the motor and control. In this way, brushed motors offer ease of control through linear torque-speed relationship. The disadvantage of the brushed motor is the wear of the brushes and commutators on it. Its lifespan is shortened and it is generally not suitable for use in hazardous locations because it arcs. However, brushed motors also have advantages.

Brushed and Brushless Motor Performance

In most applications, a brushless motor has advantages over a brushed motor. The brushless motor, which has high reliability, small form factor, high torque, more precise speed and complex control for positioning, also dissipates heat more easily. However, since the number of slots is high in brushed motors, torque fluctuation is low. That's why you can get better performance from a brushed motor in some applications.

Which Engine Should Be Used in Which Applications?

  • Brushless motor is preferred in applications requiring high performance and in productions where complex control is required.
  • However, if performance is not important for the application, brushed motor is a more suitable option. Brushed motor; You can use it in positioning systems that require stable load holding, in speed control systems that can be used at low speeds, and in many other places.
  • Brushed motor or brushless motor When you decide to purchase, you can purchase your product with the assurance of Şahin Rulman. You can contact us for any questions you may have.