High-strength bonding for cylindrical assemblies
- Robust Loctite 638 retention: You secure bearings, sleeves, and shafts firmly against severe shock, vibrations, and heavy dynamic loads.
- Gap filling up to 0.25mm: You effectively bridge slip fits and tight tolerances on active metals as well as passive stainless steel.
- Excellent heat and oil tolerance: You achieve dependable curing performance even with minor industrial oil contamination and elevated operating temperatures.
With Loctite 638 retaining compound, you secure cylindrical components such as shafts, bearings, bushings, and gears with maximum bonding strength. This liquid formulation cures anaerobically between close-fitting metal surfaces, effectively bridging diametral gaps up to 0.25 mm. It prevents fretting corrosion, play, and loosening caused by severe shock or dynamic vibration. The compound tolerates minor industrial oil contamination and performs reliably across operating temperatures from -55 °C to +180 °C. Packed in a 250 ml bottle, it provides the robust retention you need for heavy-duty mechanical maintenance and assembly.
Product description:
- LOCTITE 638 - Retaining Compound - Henkel
- LOCTITE 638 is designed for the bonding of cylindrical fitting parts, particularly where bond gaps can approach 0.25 mm.
- The product cures when confined in the absence of air between close-fitting metal surfaces and prevents looseningand leakage due to shock and vibration.
- It not only works on active metals but also on passive substrates, exhibiting robust cure performance.
- The product offers high-temperature performanceand good oil tolerance, and tolerates minor surface contaminants.