General description Motor brushes are essential components for electric motors, playing a crucial role in their functionality. Replacing worn brushes can resolve intermittent motor issues and restore electric braking capabilities. This product includes high-quality replacement carbon brushes specifically designed for Baiyun Industrial Vacuum Cleaners 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: 12 x Carbon Brushes Measurement allowed error: +/- 1-3 cm Installation When installing the carbon brushes, ensure they are fully inserted and remain straight. It is normal to hold them in place until the connector is securely fastened.