Securing sleeves into housings (such as wear sleeves, repair sleeves, or structural liners into engine blocks, pump bodies, or machine tool spindles) is a common but crucial application. The sleeve is designed to either take wear or create a new precision bore. This joint is subjected to thermal cycling, heavy radial loads, and potential vibration. Any micro-movement of the sleeve can lead to premature wear of the sleeve itself, fretting corrosion of the housing bore, loss of precision, or oil leakage.
INCURE WeldLock™ 365 Retaining Compound
For securing high-stress sleeves—where maximum shear strength and resistance to high load and heat are paramount—the WeldLock™ 365 provides the highest structural integrity. Its superior strength ensures the sleeve cannot spin, walk, or shift, maintaining the housing’s dimensional stability and concentricity.
| Feature & Benefit | Technical Insight for Sleeve-Housing Assemblies | Conversion Value |
| Highest Strength (365) | Cures to an extremely high-shear strength, rigid plastic, providing maximum resistance to radial load and thermal expansion/contraction. | Zero Shift: Eliminates all micro-movement, preventing fretting wear and maintaining the inner bore’s precision. |
| High Temperature Resistance | Withstands continuous operational temperatures up to 200∘C (392∘F), essential for engine or high-friction applications. | End the Heat Threat: Guarantees the bond remains rigid and strong under maximum thermal load. |
| Fills Close Clearance Gaps | Ideal for components with an interference or true close-tolerance slip fit (less than 0.05 mm diametral clearance). | Maximizes Contact: Converts the press fit into a monolithic bond, optimizing load distribution. |
| Fluid Immunity | Inert to engine oil, coolant, hydraulic fluid, and industrial solvents, ensuring the integrity of the joint is protected. | Reliability Assured: The bond remains permanently intact despite fluid saturation. |
Application Steps: Locking Sleeves for Permanent Stability
Preparation (Critical): Thoroughly clean both the sleeve’s outer diameter (OD) and the housing bore. Remove all oil, grease, paint, and residue. Use a degreasing solvent (like acetone or industrial cleaner) and wipe until both metal surfaces are perfectly dry.
Application: Apply a continuous, liberal bead of WeldLock™ 365 evenly around the sleeve’s outer diameter or the inside circumference of the housing bore. Ensure the compound completely covers the mating area.
Assembly: Press or drive the sleeve into the bore using the manufacturer’s specified tools. Ensure the component is fully seated. Wipe away any excess compound immediately.
Curing Time (Mandatory): Allow a full 24 hours for the compound to reach full cure strength before machining the inner bore (if required) or subjecting the assembly to operational load and temperature.
Alternative Consideration (Worn Housings): If the housing bore is worn and the clearance gap is larger (up to 0.25 mm), use INCURE WeldLock™ 356 (Metallic Grey). This compound is specifically formulated with fillers to tolerate larger diametrical clearances while still providing high structural integrity.
Stop risking sleeve spin and premature wear, and ensure your housing assemblies are absolutely rigid and reliable.