Choosing NBR or FKM should be based on actual lubricant, temperature and operating conditions, not on material name alone. NBR is widely used for general oil sealing, while FKM is often selected when higher heat or chemical resistance is required. This Integrated COMBI Seal can be configured around the application while maintaining a strong external barrier against mud, dust and abrasive contamination.
Problem solved: Helps buyers choose NBR or FKM based on real duty conditions while preserving contamination protection.
Seal type: COMBI
Design: Integrated
Comparison: NBR vs FKM
NBR: General oil duty
FKM: Higher-demand option
Material choice: Application based
Oil compatibility: Required
Temperature demand: Required
Chemical exposure: Considered
Abrasion exposure: Considered
Mud exposure: Strong
Dust exposure: Strong
Grit exposure: Strong
Motion: Rotary
Oil retention: Reliable
Dirt exclusion: Strong
Lip system: Multi-lip
Primary lip: Oil
Dust lip: Protective
PU lip option: Available
Housing fit: Secure
Shaft contact: Stable
Leakage risk: Reduced
Ingress risk: Reduced
Wear control: Improved
Service life: Optimized
Equipment: Construction
Equipment: Mining
Equipment: Agriculture
Equipment: Forestry
Duty: Heavy
Environment: Contaminated
Dimensions: Custom
Hardness: Application matched
Temperature: Application matched
Speed: Application matched
Lubricant: Application matched
Installation: Press fit
Replacement: Service friendly
OEM support: Available
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