General description Motor brushes are essential components for electric motors, playing a crucial role in their functionality. Replacing worn brushes can resolve issues such as intermittent motor operation and can restore a motor's electric braking capability. This product includes high-quality replacement carbon brushes specifically designed for Baiyun Industrial Vacuum Cleaners, models BF501, BF502, and BF822. Technical specifications Item: Motor Carbon Brush Color: Silver Material: Activated Carbon Size: 1 x 0.6 x 2.9 cm Package Contents: 20 x Carbon Brushes Measurement allowed error: +/- 1-3 cm Installation Ensure the carbon brushes are inserted completely and remain straight during installation. It may be necessary to hold the brushes in place until the connector is re-secured.