5 * 12.5 * 42 MM Carbon Brush Set for Household Appliance Accessories Washing Machine Motor

I. Basic Information and Core Parameters

• Dimension Specifications

• Thickness: 5mm × Width: 12.5mm × Length: 42mm

• Large-size specification adapted to washing machine motor brush slots.

• Product Composition

• Carbon brush set (including springs), a wear-and-tear replacement part specially designed for washing machine motors.

II. Compatible Equipment and Typical Models

• Application Scope

• Suitable for drive motors of front-loading and top-loading washing machines (commonly used in models with universal motors or brushless DC motors).

• Brand and Model References

• Compatible with large washing machine models from brands such as Haier, Siemens, and Little Swan (e.g., Siemens WM14U560HW, Haier XQG100-HB14636).

• Verify the dimensions of the old carbon brush and spring pressure (typically matching 2.0–2.5kg).

III. Technical Parameters and Working Mechanism

1. Material Characteristics

• The carbon brush body is made of high-wear-resistant graphite composite material (with ceramic wear-resistant additives), with a resistance coefficient of 10⁻⁴Ω·m and a wear rate <0.05mm/100h.

• The spring is made of stainless steel (SUS304), with corrosion resistance and a pressure retention rate >95% (after 1,000 hours of use).

2. Current Conduction Principle

• Contacts the motor commutator through spring pressure to conduct current to the rotor windings, driving the washing machine drum to rotate (e.g., drum motor at 1,200 RPM).

3. Wear Replacement Threshold

• Replace immediately when the remaining length of the carbon brush is less than 1/2 of the original, or when the washing machine experiences startup delay or weak operation to avoid commutator wear.

IV. Installation and Maintenance Key Points

• Installation Steps

1. Power off and remove the motor end cover, then take out the old carbon brush assembly (including the spring).

2. Clean the carbon powder on the commutator surface with alcohol and check for grooves.

3. The new carbon brush should fit the arc of the commutator, and the spring should be stuck into the fixed slot (ensure uniform pressure).

• Maintenance Suggestions

• Inspect wear every 1–2 years or 300 washing cycles, and it is recommended to replace the carbon brush and spring simultaneously (the set pressure is more matched).

V. Differences Comparison with Other Carbon Brushes

VI. Purchase and Replacement Recommendations

• Specification Confirmation

• In addition to dimensions, verify the current-carrying capacity of the carbon brush (5–8A) and the compatible voltage (220V household standard).

• Professional Tips

• If the washing machine makes abnormal noise or sparks during operation, the carbon brush may be worn or the spring may be failed. It is recommended to contact after-sales service for replacement to avoid motor failure caused by unprofessional operation.