48L562 - Walter 48-L-562 Carbon Brush Set for Big Buff III

Technical Overview: Walter 48-L-562 Carbon Brush Set

The Walter 48-L-562 is a specialized Carbon Brush Set designed as a direct OEM replacement for the motor assembly of Walter Surface Technologies power tools, specifically the Big Buff III series. This component is critical for the electrical transmission between the stationary wires and the rotating armature of the tool's motor. As a consumable wear item, carbon brushes are engineered to degrade over time to protect the harder copper commutator bars; however, using non-OEM or incorrect brushes can lead to arcing, overheating, and permanent motor damage.

This set replaces the discontinued part number 48-L-335, offering updated material composition for improved conductivity and thermal management. The brushes are manufactured to precise dimensional tolerances to ensure they slide freely within the brush holders while maintaining consistent contact pressure via the tension springs. Proper seating of these brushes is essential for maintaining the tool's variable speed control and torque characteristics under load.

Installation of the 48-L-562 set is a standard maintenance procedure for the Big Buff III. Technicians should inspect the commutator for wear or pitting before installation. The set typically includes two brushes, as both should be replaced simultaneously to ensure balanced electrical resistance and even wear patterns. Regular inspection of carbon brush length is recommended as part of a preventative maintenance schedule for industrial finishing tools.

Specifications and Compatibility

The 48-L-562 is engineered to handle the specific current draw and duty cycle of Walter's high-torque finishing motors. The carbon grade is selected to balance lifespan with commutation quality, minimizing electromagnetic interference (EMI) and sparking. By using genuine Walter parts, operators ensure that the tool's safety features and double-insulation ratings remain intact.