Carbon Brush 5*12.5*42mm Replacement Suitable for Various Washing Machines

I. Product Definition and Core Functions

Essential Attributes

This is a 5×12.5×42mm motor carbon brush specifically designed for washing machine motors, categorized as a wear-and-tear component.

Core Functions

It conducts electric current through sliding contact with the motor commutator, driving the washing machine motor (e.g., drum rotation, agitator movement). It serves as a key component for converting electrical energy into mechanical energy in the motor.

II. Application Scenarios and Compatible Models

Applicable Equipment

Suitable for various top-loading and front-loading washing machines, particularly those using universal motors or DC motors.

Compatibility Logic

The 5×12.5×42mm size is a universal specification, compatible with washing machine models from different brands (e.g., Haier, Siemens, Midea). However, compatibility must be verified against the actual carbon brush slot dimensions of the motor.

III. Working Principle and Wear Mechanism

Working Principle

• Electric current is conducted through the carbon brush to the motor rotor windings, switching current direction in conjunction with the commutator to drive continuous motor rotation.

• The carbon brush material (typically graphite-based composite) balances electrical conductivity and wear resistance for stable contact.

Wear and Replacement Threshold

During normal use, the carbon brush gradually wears due to friction. Replace it when the remaining length is less than 1/2 of the original or when abnormal sparking occurs to prevent commutator damage or motor failure.

IV. Installation and Maintenance Key Points

Installation Notes

• Power off before removing the motor end cover. Extract the old carbon brush and clean the commutator surface (use alcohol for wiping).

• The new carbon brush must fit tightly against the commutator, with uniform spring pressure (replace the spring if aged).

Maintenance Value

Regularly inspect carbon brush wear to extend motor lifespan and avoid washing machine malfunctions or abnormal noise caused by carbon brush failure.

V. Core Differences from Other Carbon Brushes

VI. Purchase and Replacement Recommendations

• Verify carbon brush size, compatible motor type (AC/DC), and brand model (e.g., part number in the manual) when purchasing.

• Non-professionals are advised to contact after-sales service for replacement to avoid motor short circuits or malfunctions due to improper installation.

Conclusion
The above analysis confirms that this carbon brush is a core consumable component for washing machine motors, engineered specifically for home appliance scenarios. Replacement operations must balance safety and compatibility.