The retention of press-fit bearings within engine blocks is a highly critical, High Strength application. The compound must withstand constant engine vibration, immense dynamic load, and sustained high operational temperatures. Failure results in catastrophic engine destruction.
The optimal solution is a high-strength retaining compound engineered for dynamic loads and elevated temperatures.
INCURE WeldLock™ 347 Retaining Compound (Green)
The INCURE WeldLock™ 347 Retaining Compound is the definitive choice for press-fit bearings in engine blocks, as it is a high-strength solution specifically designed for elevated temperatures and tight tolerances in dynamic motor applications.
| Key Feature | Benefit for Engine Block Bearings |
| High Strength, Fast Curing | Creates a monolithic bond that resists extreme engine vibration and dynamic shock loads from crankshaft rotation, ensuring the bearing maintains its precise seating. |
| Temperature Resistance (175∘C) | Engineered to maintain full structural strength under the sustained, elevated temperatures experienced within a running engine block. |
| Ideal Gap Fill (Up to 0.15mm) | Perfect for securing standard, close-tolerance press-fit cylindrical assemblies, preventing micromovement that leads to fretting and spin-out. |
| Core Application | Specifically suited for securing gears, rotors, and shafts in motors and mechanical drives, directly matching the environment of an engine block. |
For maintaining the structural integrity of a new or standard-tolerance engine assembly, the WeldLock™ 347 provides the required thermal stability and absolute holding power.
(Note: If the engine block bearing housing is worn or has loose tolerances up to 0.5mm, the INCURE WeldLock™ 356 Retaining Compound (Metallic Grey) would be recommended for gap filling, though it has a lower temperature limit of 150∘C. For standard press-fit applications, the 347 is preferred for its superior thermal rating.)