5.8* 7.8 * Cepillo de carbono de 16 mm, para reemplazo

5.87.816 MM Carbon Brush for Replacement Electric Tools Spare Parts

Key Information Analysis:

1. Product Type: Carbon Brush
   Made by pressing a mixture of graphite and a small amount of metal powder (such as copper or silver), it has good electrical conductivity and wear resistance. Through close contact with the motor commutator, it stably conducts current to the rotor, driving the tool to operate while reducing frictional loss.
2. Compatibility Range:
   As a universal electric tool spare part, it is suitable for motors of various small and medium-sized electric tools. Common applicable scenarios include:
   • Handheld grinders, angle grinders (low-power models);
   • Electric drills, impact drills (household or light industrial grade);
   • Small sanders, polishers, etc.
     Specific compatibility depends on the size of the tool motor’s brush holder (the core is that the size must match completely).
3. Size Specifications: 5.8×7.8×16 mm
   This precise size is a core parameter for compatibility, with an allowable error of within 0.3mm. Otherwise, it will cause poor contact between the carbon brush and the commutator, leading to excessive motor sparking, insufficient power, or even damage. Before replacement, disassemble the tool motor and check the size of the original carbon brush.
4. Functions and Roles:
   • Serves as a "conductive bridge" for the motor, ensuring effective current transmission from the stator to the rotor and maintaining the normal operation of the tool;
   • Buffers vibrations during motor operation, reduces commutator wear, and extends the motor’s service life.
5. Replacement Timing:
   Check and replace the carbon brush when the electric tool shows the following conditions:
   • The carbon brush is worn down to less than 1/3 of its original length (about 5-6 mm);
   • The motor is difficult to start, or there is obvious abnormal noise during operation;
   • The output power of the tool decreases, or there are abnormally increased sparks at the brush holder.