48C122 - Walter 48-C-122 Replacement Bevel Gear for Big 6 Grinders

Precision Engineering for Industrial Power Tools

The Walter 48C122 Bevel Gear is a critical internal component designed specifically for the transmission systems of Walter's heavy-duty angle grinders. Manufactured by Walter Surface Technologies, this part serves as the primary driven gear within the angle head assembly, mating with the pinion to transfer rotational force from the motor to the spindle at a 90-degree angle. In high-torque applications such as industrial grinding, cutting, and deburring, the integrity of the gear mesh is paramount to maintaining tool efficiency and longevity.

Constructed from high-grade hardened steel, this bevel gear is engineered to withstand the extreme mechanical stresses and thermal loads generated during continuous operation. The teeth are precision-cut to exact tolerances, ensuring a perfect mesh with the corresponding pinion gear. This precise fitment is essential for minimizing backlash, reducing mechanical noise, and preventing premature wear on the bearings and motor components. Using non-OEM or ill-fitting gears can lead to catastrophic failure of the gear box, increased vibration, and potential safety hazards for the operator.

This specific SKU (48-C-122) is identified as the replacement bevel gear for the renowned Walter "Big 6" and "Super 5" series of grinders. These tools are workhorses in the metalworking industry, and maintaining them with genuine parts is the only way to guarantee they continue to perform to factory specifications. When replacing the bevel gear, it is often recommended to inspect the pinion gear and bearings for signs of wear, as mating components often wear in unison. Proper installation involves cleaning the gear housing, applying the appropriate high-temperature gear grease, and ensuring the gear case is sealed correctly to prevent contaminant ingress.

For maintenance professionals and tool repair technicians, the 48C122 represents the standard of quality expected from Walter. It is not merely a spare part but a restoration of the tool's original engineering capabilities. By choosing genuine Walter parts, you ensure that the metallurgical properties of the replacement gear match the original design requirements, preserving the balance and smooth operation that Walter tools are known for.