High-Strength Stop Ring for Hydraulic Rock Drills This stop ring is engineered to secure components on hydraulic rock drill shafts, preventing axial displacement during high-vibration drilling operations. Constructed from heat-treated spring steel (65Mn), it combines flexibility for easy installation with high tensile strength, ensuring reliable retention in abrasive mining environments.
Key Performance Attributes
Material & Durability:
65Mn spring steel (0.65% carbon) undergoes heat treatment to achieve HRC45-50 hardness, balancing flexibility and strength. The material retains 90% of its tensile strength (980MPa) after 100,000 cycles, outperforming standard carbon steel rings .
Deburred edges prevent damage to shaft surfaces during installation, reducing wear on mating components.
Precision & Compatibility:
IT8 dimensional tolerance (ISO 286-1) ensures consistent fit on Ø30-50mm shafts, with ±0.03mm radial tolerance minimizing radial play. The C-section design (DIN 471) allows snap-on installation without special tools, reducing assembly time by 25% .
Operational Reliability:
Rated for 15kN axial load, it maintains secure retention even under shock loads from drill impact mechanisms. The -40°C to +150°C operating range ensures performance stability in extreme conditions, from cold underground mines to high-friction shaft systems .
Applications
Hydraulic Rock Drills: Secures bearings, collars, and seals on rotating shafts in drill mechanisms.
Mining Equipment: Compatible with tunneling machines, quarry drills, and mineral exploration rigs requiring axial retention.
