Carbon Brush 6.2*6.2*17/18 MM for Electric Motor

Generic Replacement Tool Spare Parts Carbon Brush 6.2×6.2×17/18 MM for Electric Motor

Key Information Analysis:

1. Product Type: Generic Replacement Carbon Brush
   Usually made by pressing a mixture of graphite and copper powder, it has basic electrical conductivity and wear resistance, with high cost performance. As a generic spare part, it can replace the original carbon brushes of motors from multiple brands. It conducts current through sliding contact with the commutator, maintaining the basic operation function of the motor.
2. Compatibility Range:
   With a square cross-section of 6.2×6.2mm and lengths of 17/18mm, it is suitable for small and medium-sized motors with compact structures. Common application scenarios include:
   • Household power tools: such as small electric grinders, handheld grinders (low-power models);
   • Industrial auxiliary equipment: small conveying motors, ventilation fan motors, water pump motors, etc.;
   • Home appliance drive components: motors (brushed type) of some models of juicers and mixers.
     The core of compatibility is that the size must match the motor's brush holder (the square cross-section ensures stable installation). The difference in length between 17mm and 18mm needs to be selected according to the specifications of the original carbon brush.
3. Size Specifications: 6.2×6.2×17/18 MM
   The 6.2×6.2mm square design makes it suitable for brush holders with various symmetrical structures. The length difference (1mm) must strictly correspond to the original carbon brush; otherwise, it may cause uneven pressure. The size error should be controlled within 0.3mm to avoid poor contact leading to motor failures.
4. Functions and Roles:
   • As a basic conductive component of the motor, it ensures current transmission and the normal startup and operation of the equipment;
   • The generic design reduces the cost of spare part replacement, making it suitable for cost-sensitive scenarios (such as maintenance of batch equipment).
5. Replacement Tips:
   The carbon brush should be replaced in time when the equipment shows the following situations:
   • The carbon brush is worn down to less than 1/3 of its original length (about 6-7mm);
   • There are more sparks during motor operation, or there is an obvious "stuttering feeling";
   • The output power of the equipment decreases, and the startup time is prolonged.