Power tool gear retention requires a secure hold to resist high-speed rotation and operational torque, but the gearbox must often be serviceable for routine cleaning, re-greasing, or replacement of worn gears. This demands a retaining compound that offers secure, anti-slip strength while allowing for future, non-destructive disassembly.
This is a Medium Strength, Serviceable application.
INCURE WeldLock™ 338 Retaining Compound (Yellow)
The INCURE WeldLock™ 338 Retaining Compound is the ideal functional “Medium Strength” solution. It is designed for assemblies where future disassembly is required, providing enough holding power to transmit torque and resist vibration without making gear removal a destructive process.
| Key Feature | Performance for Power Tool Gear Retention |
| Serviceable Bond (Yellow) | Designed for assemblies requiring removal or repositioning. Locks the gear securely to the shaft but allows for easier, non-destructive separation for gearbox maintenance. |
| Excellent Vibration Resistance | Provides reliable holding power against continuous high-speed rotation and operational shock, preventing the gear from shifting or spinning. |
| Gap Fill (Up to 0.25mm) | Effectively fills the annular space, ensuring a solid, unified interface between the gear and the shaft. |
| Temperature Resistance (150∘C) | Maintains integrity under the sustained operational temperatures of power tool motors and gearboxes. |
Application Steps: Installing Power Tool Gears
For optimal retention and reliable, yet removable, installation of power tool gears, follow these steps:
1. Surface Preparation (The Foundation)
- Clean: Thoroughly clean both the shaft surface and the gear bore. Surfaces must be absolutely free of all grease,oil, and contaminants. Use an industrial cleaner (e.g., acetone) and wipe dry.
- Activate (If Needed): If the ambient temperature is low, applying a chemical activator can ensure faster, more consistent curing.
2. Product Application
- Apply: Apply a continuous, thin bead of WeldLock™ 338 around the full circumference of either the shaft or the internal bore of the gear.
- Ensure Coverage: Ensure the adhesive completely wets the entire mating surface as the gear is inserted.
3. Assembly and Curing
- Assemble: Immediately slide or press the gear onto the shaft. Ensure the components are aligned correctly before the compound fixtures.
- Wipe Excess: Remove any excess adhesive visible outside the joint immediately after assembly.
- Cure: Allow the assembly to fixture before handling (typically 10-30 minutes). Allow a full 24 hours for the compound to reach maximum strength before placing the power tool back into service.