Description

INGCO S-JS-CBR-JS5201, Jig Saw-Carbon Brush No.26(S-JS-CBR-JS5201)

product details:

Carbon brushes, also known as motor brushes, play a crucial role in the heart of many electric motors, including those found in jigsaws, drills, and various power tools. Here’s a comprehensive breakdown of their full description and key features:

Function:

Carbon brushes act as electrical bridges within a motor. They continuously conduct electricity from the commutator (a rotating disc with segmented electrical contacts) to the armature (the rotating part of the motor). This continuous flow of electricity creates a changing magnetic field that interacts with the motor’s permanent magnets, causing the armature and ultimately the motor shaft to rotate. Imagine them as the conductors in an orchestra, silently directing the flow of electricity to create the power that drives the motor.

Material:

Carbon brushes are typically made from a blend of:

• Graphite: Provides good electrical conductivity.
• Resins and binders: Hold the graphite particles together and ensure the brush maintains its shape.
• Copper wires: Embedded within the brush to connect it to the motor’s electrical terminals.

This combination offers a balance between conductivity to carry current effectively and hardness to withstand friction from contact with the commutator.

Key Features:

• Conductivity: The ability to efficiently conduct electricity is essential for proper motor operation.
• Self-lubrication: Some carbon brushes incorporate lubricants to minimize friction against the commutator.
• Wear Resistance: Carbon brushes are designed to wear gradually over time, minimizing damage to the commutator.
• Spring Tension: A spring mechanism maintains appropriate contact pressure between the brush and the commutator for optimal current transfer.