48H478 - Walter Replacement Sliding Gear for Line-Mate III

Precision OEM Replacement for Walter Surface Finishing Tools

The Walter 48-H-478 Sliding Gear Unit is a critical internal component designed specifically for the transmission assembly of Walter Surface Technologies' linear finishing tools, most notably the Line-Mate III series. As an Original Equipment Manufacturer (OEM) part, this gear unit is engineered to the exact specifications required to maintain the high-performance standards of Walter industrial power tools. The sliding gear plays a pivotal role in the tool's variable speed and torque transmission system, allowing the operator to engage different drive ratios or modes effectively without mechanical slippage or binding.

Constructed from high-grade, hardened steel, the 48-H-478 is built to withstand the rigorous demands of continuous industrial use. In surface finishing applications, tools like the Line-Mate III are often subjected to significant load variations as they transition between grinding, sanding, and polishing tasks. The internal gearing must absorb these stresses while maintaining smooth rotation. A worn or damaged sliding gear can lead to erratic tool behavior, increased vibration, excessive noise, and eventually, a complete failure of the drive mechanism. Replacing a compromised gear with this genuine Walter component restores the mechanical integrity of the transmission, ensuring that power is delivered efficiently from the motor to the spindle.

Maintenance professionals and tool repair technicians understand that using non-OEM or ill-fitting gears in precision power tools can lead to accelerated wear on mating components, such as the armature pinion or the main spindle gear. The Walter 48-H-478 ensures perfect mesh alignment and backlash tolerance, preserving the lifespan of the entire gear box assembly. This unit is supplied as a single component, ready for installation into the gear housing of the compatible device.

Key Technical Aspects:

• Material: Industrial-grade hardened steel alloy for wear resistance.


• Fitment: Exact dimensional match for Line-Mate III gearboxes.


• Function: Facilitates smooth engagement and power transfer within the transmission.