No single service-life statistic applies to every muddy site. The useful comparison is your own equipment data: hours to leakage, dirt ingress evidence, shaft damage, service frequency and downtime. A COMBI seal provides a stronger contamination-control architecture to test against a standard oil seal under the same duty.
1. Product: Integrated COMBI seal
2. Evaluation goal: Mud-site reliability
3. Comparison: Standard oil seal
4. Metric: Hours to first leak
5. Metric: Replacement frequency
6. Metric: Contamination behind exclusion lip
7. Metric: Shaft scoring severity
8. Metric: Downtime per event
9. Metric: Oil loss observed
10. Metric: Bearing contamination evidence
11. Motion: Rotary shaft
12. Function: Lubricant retention
13. Exclusion: Multi-lip dirt barrier
14. Contaminants: Mud/grit/water/dust
15. Abrasion control: Enhanced
16. Equipment: Construction/industrial machinery
17. Positions: Hubs/axles/drives/gearboxes
18. Housing: Press-fit
19. Shaft interface: Profile dependent
20. Elastomers: NBR/HNBR/FKM
21. Case: Steel options
22. Spring: Profile dependent
23. Oil compatibility: Verify
24. Grease compatibility: Verify
25. Pressure: Record normal/peak
26. Speed: Record RPM
27. Temperature: Record operating range
28. Shaft finish: Keep comparison consistent
29. Shaft hardness: Record if relevant
30. Runout: Measure
31. Misalignment: Measure
32. Installation: Standardize method
33. Orientation: Correct sides
34. Reuse: Not recommended
35. Inspection: Photograph dirt paths
36. Retrofit: Check clearance
37. Custom size: Available
38. OEM match: Number/sample
39. QC: Dimension/lip check
40. Order data: ID/OD/width/media
41. Test discipline: Compare equal duty cycles
42. Reliability claim: Validate with site data
Measurement tip: Track several service intervals using the same inspection method. This creates a defensible reliability comparison without relying on unsupported universal statistics.



