O-Ring 85843849 | High-Pressure Nitrile Rubber O-Ring for Hydraulic Rock Drills
O-Ring 85843849 | High-Pressure Nitrile Rubber O-Ring for Hydraulic Rock Drills - Image 2
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O-Ring 85843849 | High-Pressure Nitrile Rubber O-Ring for Hydraulic Rock Drills - Image 5

O-Ring 85843849 | High-Pressure Nitrile Rubber O-Ring for Hydraulic Rock Drills

Part Number: 15040628
  • Material: 10.9 grade alloy steel (quenched & tempered)
  • Dimensions:
    • Thread Size: M10 x 1.5 mm (coarse)
    • Length: 30 mm (overall)
    • Hex Head Width: 24 mm (ISO 4014 Class B)
  • Weight: 0.0184 kg (calculated based on 7.81 g/cm³ density)
  • Mechanical Properties:
    • Tensile Strength: ≥1040 MPa (ISO 898-1)
    • Yield Strength: ≥940 MPa
  • Surface Coating: Zinc-plated (8 μm thickness) with salt spray resistance ≥96 hours (ISO 9227)
  • Torque Rating: 60 N·m (recommended for hydraulic rock drill applications)
  • Compatibility: Direct fit for hydraulic rock drills requiring M10x30mm bolt mounting
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High-Strength 10.9 Grade Alloy Steel Hex Head Bolt for Hydraulic Rock Drills
Engineered for extreme underground mining conditions, this bolt ensures reliable load-bearing in high-vibration hydraulic rock drill applications. Constructed from 10.9 grade alloy steel (quenched & tempered), it withstands continuous dynamic loads up to 1040 MPa while resisting abrasion and corrosion in harsh environments .

 

Technical Specifications & Design
The bolt features an M10x1.5 mm coarse thread (ISO 4014 Class B tolerance) and 30 mm overall length, designed for secure mounting in hydraulic cylinder assemblies and drill rig components. Its 24 mm hex head width provides optimal grip for high-torque applications, while the zinc-plated coating (8 μm thickness) passes 96+ hours of salt spray testing (ISO 9227), ensuring long-term performance in wet or corrosive mining environments .

 

Performance Advantages
  • Vibration Resistance: Engineered to maintain dimensional stability in high-frequency oscillating systems, minimizing loosening in critical hydraulic connections.
  • Corrosion Protection: Zinc plating meets ISO 9227 standards, extending service life by 30% compared to uncoated steel bolts .
  • Precision Fit: Thread dimensions adhere to ISO 4014 Class B tolerances, ensuring compatibility with standard hydraulic system components.
  • Ease of Installation: Recommended torque of 60 N·m simplifies assembly and reduces downtime .

 

Applications
  • Underground Mining: Critical for securing hydraulic connections in rock drills used in tunnel boring and ore extraction.
  • Heavy Machinery: Used in excavators and loaders to fasten high-pressure pivot points.
  • Industrial Hydraulics: Supports presses and material handling equipment, ensuring structural integrity in repetitive motion tasks.

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