48L833 - Walter 120V Replacement Armature for Big 6 and Super 5 Grinders

Restore Your Grinder's Power

The Walter 48L833 Armature is a critical replacement component designed to breathe new life into your heavy-duty Walter grinders. Specifically engineered for the 120V versions of the renowned Big 6 (Model 6145) and Super 5 (Model 6150) angle grinders, this armature is the heart of your tool's electric motor. Over time, the intense heat and friction generated during industrial grinding applications can wear down the commutator or damage the windings of an armature. Symptoms such as excessive sparking, loss of torque, smoke, or a tool that simply won't start often point to a failed armature. Replacing it with this genuine OEM part ensures you maintain the high standards of performance and safety that Walter tools are known for.

Precision manufacturing is key when it comes to high-speed rotating assemblies. The 48L833 is dynamically balanced to minimize vibration, which is crucial for preventing operator fatigue and extending the life of the bearings and gear assembly. The high-quality copper windings are coated with heat-resistant insulation to withstand the thermal loads of continuous industrial use. Unlike generic aftermarket replacements, this authentic Walter part guarantees the correct dimensional fit, ensuring the brushes make proper contact and the cooling fan (if integrated) moves air efficiently through the housing.

Repairing your high-value tools is often far more cost-effective than replacing them. By installing a new 48L833 armature, you restore the original power output and rotational speed of your grinder. This part is designed for straightforward installation by qualified repair technicians. Whether you are maintaining a fleet of tools in a fabrication shop or fixing your personal heavy-duty grinder, trusting genuine Walter parts is the best way to ensure reliability and safety on the job.

Key Technical Benefits

• OEM Compatibility: Guaranteed fit for Walter Big 6 and Super 5 (120V) models.


• Durability: Built with industrial-grade materials to resist heat and wear.


• Performance: Restores factory torque and RPM specs.


• Smooth Operation: Balanced design reduces tool vibration.