6.2*13*20 MM Power Tool Accessories Carbon Brush Set for Electric Motor

6.2×13×20 MM Power Tool Accessories Carbon Brush Set for Electric Motor

Key Information Analysis:

1. Product Type: Carbon Brush Set for Power Tool Accessories
   Made by pressing a mixture of graphite and copper powder (copper content approximately 25%-35%), it features excellent electrical conductivity and wear resistance. The set design (2 pieces) meets the need for simultaneous replacement of carbon brushes on both sides of the motor, ensuring balanced current conduction and avoiding motor operation jitter or abnormal sparks caused by uneven wear of carbon brushes on one side.
2. Compatibility Range:
   Based on the 6.2×13×20mm specification, it is suitable for brushed motors of various medium-power power tools. Common scenarios include:
   • Handheld power tools: such as medium-sized electric drills, angle grinders, grinders, reciprocating saws, etc. (power 600-1500W);
   • Portable equipment: some models of jigsaws, polishers, impact wrenches, etc.
     The core of compatibility is that the size must completely match the motor's brush holder (with an error of ≤0.2mm). In particular, the width (13mm) and thickness (6.2mm) must fit precisely; otherwise, it may cause loose installation or poor contact, affecting the power output of the tool.
3. Size Specifications: 6.2×13×20 MM
   This size belongs to medium-sized carbon brushes. The length of 20mm provides sufficient wear allowance (service life is about 1200-1800 hours), adapting to most standard brush holder structures. The dimensional accuracy is controlled within ±0.1mm to ensure tight contact between the carbon brush and the commutator, reducing sparks and noise during operation.
4. Functions and Roles:
   • Serves as the "current conduction hub" of the motor, stably transmitting external power current to the rotor to drive the power tool to start and operate normally;
   • The self-lubricating property of graphite can reduce wear on the commutator, extend the service life of the motor, and lower equipment maintenance costs.
5. Replacement Tips:
   The carbon brush set should be replaced in time when the power tool shows the following conditions:
   • The carbon brush is worn down to less than 1/3 of its original length (about 6-7mm);
   • There are significantly more sparks at the carbon brush during motor operation, or accompanied by a continuous "sizzling" sound;
   • The output power of the tool decreases, it starts slowly, or there is intermittent stuttering during operation.