High-Tension Lock Washer for Hydraulic Rock Drills Engineered for extreme mining environments, this lock washer ensures reliable anti-loosening performance in hydraulic rock drills and heavy-duty equipment. Constructed from 304 stainless steel with 200 HV hardness, it withstands high pressures, vibration, and corrosive conditions, making it ideal for prolonged use in underground mining and quarrying operations.
Technical Specifications & Design The lock washer adheres to ISO 3007 standards, featuring a 22.2 mm outside diameter with a 10.3 mm bore diameter. Its precision-machined serrated profile (0.8 mm tooth height) provides a 15-20% compression ratio in 16.6 mm wide mounting grooves, ensuring secure locking under dynamic loads. The chamfered edges facilitate easy installation without damage to the shaft or housing.
Performance Advantages
Vibration Resistance: Multi-point serrations interlock with mating surfaces to prevent rotational movement, critical for high-vibration applications like drill rigs .
High-Pressure Stability: Withstands up to 20 MPa dynamic pressure, exceeding typical hydraulic system requirements .
Corrosion Resistance: Passes 72-hour salt spray testing (ASTM B117), ensuring longevity in wet or salty environments .
Temperature Compatibility: Maintains structural integrity from -20°C to +200°C, suitable for extreme operating conditions .
Applications
Hydraulic Rock Drills: Secures piston assemblies and valve systems in Sandvik-compatible equipment.
Mining Machinery: Used in crushers, conveyor systems, and drill rigs requiring anti-loosening solutions.
Industrial Hydraulics: Supports presses, excavators, and material handling equipment in harsh environments.
