When bearing housings are worn due to fretting, spinning, or damage, the repair solution often involves installing a sleeve to restore the proper bore diameter. This application demands a retaining compound that is High Strength to handle load, but critically, possesses large gap-filling capability to lock the sleeve securely into the damaged, loose-tolerance housing bore.
This is a High Strength, Large-Gap Permanent Repair application.
INCURE WeldLock™ 356 Retaining Compound (Metallic Grey)
The INCURE WeldLock™ 356 Retaining Compound is the definitive, high-viscosity solution designed specifically for repair and restoration applications involving worn parts. Its thick consistency and superior gap-filling make it ideal for sleeving loose-tolerance bearing housings.
| Key Feature | Performance for Sleeving Worn Housings |
| High Strength, High Viscosity | Creates a robust, high-strength bond that permanently secures the sleeve into the worn housing, resisting shear, vibration, and walk-out forces. |
| Large Gap Fill (Up to 0.5mm) | Essential for worn components. Fills the large, uneven diametral clearances inherent in damaged and worn bores, restoring a tight, secure fit. |
| Repair & Restoration Focus | Specifically designed for the repair and refitting of worn cylindrical parts (housings, keyways), extending the service life of costly mechanical components. |
| Temperature Resistance (150∘C) | Maintains structural integrity under sustained operational heat generated in machinery and motor housings. |
Application Steps: Sleeving Worn Bearing Housings
For optimal structural restoration and permanent retention of the sleeve, follow these steps:
1. Surface Preparation (Critical)
- Clean: Thoroughly clean the worn housing bore and the sleeve’s outer surface to remove all grease, oil, and contaminants. Use an industrial solvent (e.g., acetone) and wipe dry.
- Roughen: For best adhesion on severely worn or highly polished surfaces, lightly roughen the housing bore using light abrasion (sandpaper or grit).
- Activate (If Needed): If the assembly time is critical or if temperatures are low, apply a chemical activator to the bond surfaces.
2. Product Application
- Apply: Apply a generous, continuous bead of WeldLock™ 356 (due to its high viscosity and gap-filling) around the entire outer circumference of the sleeve or liberally coat the worn internal bore of the housing.
- Ensure Coverage: Ensure the thick paste consistency completely covers the damaged area to ensure maximum metal-to-metal contact through the compound.
3. Assembly and Curing
- Assemble: Immediately slide or press the sleeve into the housing bore. Ensure the sleeve is seated correctly.
- Wipe Excess: Remove any excess adhesive visible outside the joint immediately after assembly.
- Cure: Allow the assembly to fixture (typically 10 minutes). Allow a full 24 hours for the compound to reach maximum structural strength before placing the component back into service.