This contamination-resistant COMBI seal shields construction machinery shaft interfaces from external particles. The outer dust lip intercepts sand and powder, while the main lip retains hydraulic oil or compatible lubricant. A reinforced metal case supports secure installation under vibration and shock.
Product type: hydraulic protection COMBI seal
Core function: dust exclusion
Secondary function: fluid retention
Primary material: oil-resistant NBR
Optional material: PU dust lip
Outer case: reinforced metal
Dust lip: jobsite debris scraper
Main lip: hydraulic oil retaining
Application: construction machinery
Application: excavators
Application: loaders
Application: drilling rigs
Target contaminant: dust
Target contaminant: sand
Target contaminant: concrete powder
Fluid protection: hydraulic oil
Dust resistance: high
Abrasion resistance: reinforced
Mud resistance: good
Water resistance: suitable
Vibration resistance: strong
Shock resistance: enhanced
Speed class: low to medium
Pressure class: application dependent
Temperature range: customizable
Hardness: fluid matched
Dimensions: custom available
Tolerance: precision controlled
Mounting: press fit
Contact pressure: uniform
Runout compensation: moderate
Friction: controlled
Heat buildup: reduced
Fluid leakage control: reliable
Oil cleanliness: improved
Component wear: reduced
Service interval: extended
Maintenance demand: reduced
OEM replacement: supported
Packaging: protective export packing
Inspection: dimensional and material
Customization: size, compound and marking
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