1. Improper selection of lubricant
Wrong practice
Use regular butter to lubricate PTFE seals, causing the material to expand.standard operation
:O-ring
Silicone grease, fluorinated lubricants (e.g. Krytox).oil seal
: Lubricating oil compatible with the medium (e.g. lithium-based grease high temperature resistant oil seal).
2. Violent tapping installation
risk
Seal deformation, metal frame oil seal cracking.correct way
:Use hydraulic or mechanical presses to apply even pressure.
The installation pressure of the oil seal is ≤0.5MPa to avoid overload.
3. Lack of environmental control
hidden danger
Dust and humidity affect the sealing performance.measure
:The cleanliness of the installation environment is ISO 14644-1 Class 8.
The humidity is controlled at 40-60% to prevent the rubber from absorbing moisture and expanding.

