Carbon brushes A1176
carbon brushes A1176 for BLE Zephyr edging machine (edging machine from 1960 to 1997)
Dimensions: 6.5 x 14 x 22.3
Weld-on connection to the motor flange
Function
Carbon brushes, also known simply as ‘carbons’, are essential components in many types of electric motors, including DC motors and some AC motors. They perform several important functions in the operation of these motors, including:
1. Current transmission: Carbon brushes provide the electrical connection between the power source and the rotating part of the motor, such as the commutator (in a DC motor) or the stator windings (in some AC motors). They allow electrical current to flow through the motor, creating a magnetic field that generates motion.
2. Switching: Carbon brushes are responsible for switching the magnetic poles of the motor. They reverse the polarity of the electrical voltage in the motor at regular intervals, causing the rotor or motor shaft to rotate. This switching allows the motor to continue turning repeatedly.
3. Adjustable range: Carbon brushes can be designed to exert adjustable pressure on the rotating surface with which they are in contact, such as the current collector or rotor. By adjusting this pressure, the friction between the brushes and the rotating surface can be regulated, which can influence the speed and torque of the motor.
4. Maintenance: Carbon brushes are wear parts. They wear out gradually over time due to constant friction with the rotating surface. However, they are relatively easy to replace, which extends the life of the motor. Periodic replacement of carbon brushes is a common maintenance operation to ensure proper motor operation.
Replacing carbon brushes A1176
The carbon brushes in a sander motor should be replaced when they are visibly worn (usually below 5 mm), if the motor loses power, runs intermittently, produces excessive sparks or heats up abnormally. A burning smell may also indicate advanced wear. Even if there are no symptoms, it is recommended to check them regularly, especially if the motor is used intensively. For proper operation, it is advisable to replace both carbon brushes at the same time and check the condition of the commutator during the service.
Carbon brushes in a border engine play an essential role in transmitting electrical current, switching magnetic poles, regulating speed and maintaining the engine. They are particularly common in DC motors, but are also found in some AC motors and other types of electrical machines.
Non-contractual photo 📷
Please note that the photos of the parts are not to scale.
