Freewheel or cassette bodies (the components that hold the cogs on a bicycle hub) require a strong, secure bond to the hub shell to transmit drive torque and resist the stresses of pedaling. However, they are a serviceable componentdesigned to be removed and replaced (often with specialized tools) for maintenance or repair of the hub’s internal ratcheting mechanism. This demands a retaining compound that offers secure, anti-slip strength while allowing for future,non-destructive disassembly.
This is a Medium Strength, Serviceable application.
INCURE WeldLock™ 338 Retaining Compound (Yellow)
The INCURE WeldLock™ 338 Retaining Compound is the ideal functional “Medium Strength” solution. It is designed for assemblies where future disassembly is required, providing enough holding power to transmit torque without making the removal of the cassette body a destructive process.
| Key Feature | Performance for Freewheel/Cassette Bodies |
| Serviceable Bond (Yellow) | Specifically designed for assemblies requiring removal or repositioning. Locks the body securely but allows for easier, non-destructive separation for hub maintenance. |
| Excellent Vibration Resistance | Provides reliable holding power against continuous rotational forces and road shock, preventing the body from loosening or shifting. |
| Gap Fill (Up to 0.25mm) | Effectively fills the annular space, compensating for minor tolerances and ensuring a solid, unified interface between the body and the hub shell. |
| Temperature Resistance (150∘C) | Maintains integrity under standard cycling operational temperatures. |
Application Steps: Installing Freewheel/Cassette Bodies
For optimal retention and reliable, yet removable, installation of the cassette body, follow these steps:
1. Surface Preparation (The Foundation)
- Clean: Thoroughly clean the hub shell thread/interface and the corresponding surface of the cassette body. Surfaces must be absolutely free of all grease, oil, and contaminants. Use a cleaner (e.g., isopropyl alcohol or acetone) and wipe dry.
- Activate (If Needed): Applying a chemical activator can ensure faster, more consistent curing, particularly in cold environments.
2. Product Application
- Apply: Apply a continuous, thin bead of WeldLock™ 338 around the full circumference of the hub shell interfacewhere the cassette body seats (usually a threaded section or an internal bore).
- Ensure Coverage: Ensure the adhesive completely wets the entire mating surface as the body is installed.
3. Assembly and Curing
- Assemble: Immediately thread or press the freewheel/cassette body onto the hub shell. Tighten to the manufacturer’s recommended torque specifications.
- Wipe Excess: Remove any excess adhesive visible outside the joint immediately after installation.
- 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 riding the bicycle.