This rock-dust defense seal is designed for drilling rigs and construction rotary systems. The rigid metal case withstands vibration and impact, while the external dust lip removes mineral particles and mud before they reach the dynamic oil seal.
Product type: heavy-duty COMBI seal
Primary use: rotary drilling equipment
Main function: rock-dust exclusion
Secondary function: lubricant retention
Material: premium NBR
Optional dust lip: PU
Outer case: reinforced steel
Dust lip: rock-dust scraper
Main lip: dynamic oil seal
Application: rotary drilling rig
Application: drill head
Application: drive gearbox
Dust resistance: high
Rock-dust resistance: strong
Drilling-mud resistance: high
Cuttings resistance: good
Abrasion resistance: reinforced
Water resistance: suitable
Vibration resistance: strong
Impact resistance: high
Speed class: low to medium
Pressure class: low
Temperature range: customizable
Hardness: customizable
Dimensions: custom
Tolerance: precision controlled
Installation: press fit
Housing retention: stable
Contact pressure: balanced
Shaft runout: moderate
Friction: controlled
Heat buildup: reduced
Oil retention: reliable
Grease retention: stable
Leakage control: effective
Drive protection: improved
Service life: extended
Downtime risk: reduced
OEM matching: supported
Packaging: heavy-duty export
Inspection: dimensional
Branding: customizable
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