Atlas Copco Sleeve Section Seals 3128308121

1. Technical Specifications

• Type: Composite sleeve seal (metal outer + rubber inner)
• Material:
  • Outer: Carbon steel (black oxide coated)
  • Inner: NBR (nitrile rubber) / FKM optional
  
  
• Working Pressure: Up to 350 bar
• Temperature: −30 °C ~ +120 °C (NBR); up to +200 °C (FKM)
• Dimensions (approx.):
  • ID: 80 mm
  • OD: 95 mm
  • Width: 25 mm
  
  
• Weight: ≈ 0.5 kg
• Cross Ref: 3128 3081 21 (hyphenated format)

• 3. Key Features

  
  
  • Wear‑resistant rubber inner lip for high pressure & heavy dust conditions
  • Steel outer ring for rigid installation in sleeve housing
  • Dual‑lip design: hydraulic seal + dust wiper in one
  • Direct OEM replacement for COP1838 series drills