The Walter 48M664 Field Coil<\/strong> is a precision-engineered OEM replacement component designed for the motor assembly of the Walter Big Buff III<\/strong> finishing tool. As the stator (stationary part) of the universal motor, this coil is responsible for generating the essential magnetic flux required to interact with the armature and produce rotation.<\/p>\n Constructed with high-purity copper windings and robust insulation materials, this field coil is built to withstand the thermal stresses and mechanical vibrations inherent in heavy-duty industrial metal finishing applications. A compromised field coil often manifests as a tool that hums without rotating, trips circuit breakers immediately, or exhibits excessive arcing at the commutator. Replacing a damaged coil with this genuine Walter part restores the tool’s electrical efficiency and torque output.<\/p>\n