High-Precision Guiding Ring for Hydraulic Rock Drills This guiding ring is engineered to ensure stable alignment of drill shanks in hydraulic rock drills, minimizing vibration and wear during heavy-duty mining operations. Its phosphor bronze construction (ASTM B148 C51000) combines low friction with high compressive strength, making it ideal for high-speed drilling applications.
Key Performance Attributes
Material & Durability:
Phosphor bronze (94% copper, 6% tin) provides excellent wear resistance and thermal conductivity, reducing heat buildup in continuous use. The HB170-190 hardness balances ductility and strength, preventing deformation under lateral loads .
Precision Engineering:
IT6 dimensional tolerance (ISO 286-1) and 0.03mm maximum radial runout ensure consistent alignment with R38 drill shanks (ISO 10424-1). This precision reduces uneven wear on mating components, extending service intervals by 35% compared to standard rings .
Polished surface (Ra 0.8μm) and integral spiral lubrication grooves maintain optimal friction levels, even in dusty or damp environments.
Environmental Adaptability:
Rated for 400,000 cycles under standard drilling conditions, it withstands repetitive impact forces. The operating temperature range (-25°C to +120°C) ensures reliability in cold underground mines and high-friction drilling zones .
Applications
Primary use in hydraulic rock drills for tunneling, quarrying, and mineral exploration.
Compatible with R38 shank systems in mining equipment, including tunnel boring machines and surface drill rigs.
