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48J709 - Walter 48-J-709 Replacement Parallel Key for Power Tools

Packaging: 1 per each
$3.56/ea

Usually ships within 3-5 business days

SKU: 48J709 Categories: ,

OVERVIEW

Genuine Walter Surface Technologies Replacement Component

The Walter 48-J-709 Parallel Key is a precision-engineered mechanical component designed specifically for the maintenance and repair of Walter Surface Technologies power tools. As an Original Equipment Manufacturer (OEM) part, this parallel key guarantees the exact dimensional tolerances required for the high-speed and high-torque applications typical of industrial grinders and finishing tools. Parallel keys serve a critical function in mechanical assemblies, acting as the locking interface between a rotating shaft and a hub, gear, or pulley. By preventing relative rotation, they ensure that the motor's power is effectively transmitted to the working end of the tool.

Constructed from high-grade steel, this key is built to withstand the shear forces and compressive loads encountered during heavy-duty grinding and cutting operations. Using non-OEM or ill-fitting keys can lead to "slop" or play in the drive train, which accelerates wear on the expensive spindle shafts and gears, potentially leading to catastrophic tool failure. The 48-J-709 is manufactured to strict quality standards, ensuring it fits snugly into the keyway without requiring modification or force, preserving the balance and integrity of your equipment.

For industrial maintenance teams and tool repair specialists, utilizing genuine Walter parts is essential for upholding safety standards and equipment warranties. This component is identified by the internal part number 48J709 (often formatted as 48-J-709 in technical diagrams). Whether performing a scheduled overhaul or an emergency repair, this parallel key is the reliable choice for restoring your Walter tools to their factory performance levels.

Technical Application

This part is typically located within the gear housing or on the main spindle assembly of the power tool. It is recommended to inspect the keyway on both the shaft and the mating component for deformation whenever replacing a sheared or worn key.

Additional Information
Packaging Description:1 per each
Brand:Walter Surface Technologies
Product Type:Parallel Key

INCLUDED

  • 1 x Walter Parallel Key (48-J-709)

APPLICATIONS

  • Replacement of worn or sheared keys in Walter power tools
  • Repairing drive train slippage in angle grinders
  • Routine maintenance of industrial finishing equipment
  • Rebuilding gear assemblies in Walter electric tools

FAQ

The parallel key locks a rotating element (like a gear or flange) to a shaft, ensuring they rotate together and transmitting torque from the motor to the tool head.

Yes, this is a genuine OEM replacement part manufactured by Walter Surface Technologies, ensuring correct fit and material strength.

Symptoms include the tool head not spinning while the motor runs (slippage), rattling noises from the gear housing, or visible shearing/deformation of the key upon inspection.

It is not recommended. Generic keys may not have the precise metric tolerance or the specific steel hardness required for high-speed Walter tools, leading to potential shaft damage.

It is manufactured from high-strength industrial steel designed to withstand shear forces within the power tool's transmission.

No, it fits specific models that call for part number 48-J-709. Please check your tool's parts diagram or manual to confirm compatibility before ordering.

Installation typically requires disassembling the relevant section of the tool (e.g., the gear head), removing the old key, cleaning the slot, and pressing the new key into place.

Inspect the keyways on both the shaft and the hub. If the slots are wallowed out or damaged, a new key may not solve the problem and the shaft might need replacement.

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