For Vibration-dampened bearing retention, the compound must secure the bearing against slip, but must also be the functional “Medium Strength” option to allow for service or replacement, as dampening systems often require routine maintenance. This is an application that balances secure retention with future serviceability.
This is a Medium Strength, Serviceable application.
INCURE WeldLock™ 338 Retaining Compound (Yellow)
The INCURE WeldLock™ 338 Retaining Compound is the ideal solution. It is designed for press or slip-fit assemblies where future disassembly is required, providing enough structural holding power to resist vibration without making the bearing removal destructive.
| Key Feature | Performance for Vibration-Dampened Bearing Retention |
| Serviceable Bond (Yellow) | Specifically designed for assemblies requiring removal or repositioning. Locks the bearing securely but allows for non-destructive separation when the dampening system or bearing needs service. |
| Excellent Vibration Resistance | Provides reliable holding power against continuous dynamic loads, preventing the bearing from shifting or fretting. |
| Gap Fill (Up to 0.25mm) | Effectively fills the annular space, eliminating play and supplementing the dampening system’s function by ensuring a solid, unified interface. |
| Temperature Resistance (150∘C) | Maintains integrity under standard operational temperatures. |
Application Steps: Installing Bearings for Dampened Retention
For optimal performance and reliable, yet removable, retention of the bearing, follow these steps:
1. Surface Preparation (The Foundation)
- Clean: Thoroughly clean the housing bore and the bearing’s outer race. Surfaces must be free of all grease, oil, and old compound residue. Use an industrial cleaner or solvent (e.g., acetone) and wipe dry.
- Activate (If Needed): If using passive metals (like stainless steel) or if the ambient temperature is below 15∘C(59∘F), apply a chemical activator to the bond surfaces and allow it to flash off completely.
2. Product Application
- Apply: Apply a continuous, thin bead of WeldLock™ 338 around the full circumference of either the outer race of the bearing or the internal bore of the housing.
- Ensure Coverage: Ensure the adhesive completely wets the entire mating surface as the components slide together.
3. Assembly and Curing
- Assemble: Immediately slide or press the bearing into the housing bore. 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 subjecting the assembly to operational loads.