Rotary Chuck Bearing 3201195485 | High-Load for Hydraulic Rock Drills
Epirco 3201195485 Rotary Chuck Bearing for Hydraulic Rock Drills – High-Carbon Chromium Steel, 50kN Load
Epirco 3201195485 – High-carbon chromium steel (SUJ2) | Double-sealed | C3 clearance
Epirco 3201195485 – IT5 tolerance (ISO 286-1) | ≤0.01mm radial play | Ra 0.1μm surface finish

Rotary Chuck Bearing 3201195485 | High-Load for Hydraulic Rock Drills

Part Number: 3201195485
  • Technical Specifications:
    • Material: High-carbon chromium steel (SUJ2, JIS G4805)
    • Tolerance: IT5 dimensional tolerance (ISO 286-1)
    • Radial Play: ≤0.01mm (C3 clearance)
    • Surface Finish: Ra 0.1μm (polished raceways)
  • Design Features:
    • Sealing: Double-lip contact seals (FKM material)
    • Compatibility: R38 hydraulic rock drill rotary chucks (ISO 10424-1)
    • Lubrication: Pre-greased with high-temperature lithium complex grease
  • Performance Metrics:
    • Dynamic Load Capacity: 50kN
    • Maximum Speed: 1500rpm
    • Operating Temperature: -30°C to +120°C
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High-Load Rotary Chuck Bearing for Hydraulic Rock Drills
This rotary chuck bearing is engineered to support radial and axial loads in hydraulic rock drill chuck mechanisms, ensuring smooth rotation during drilling operations. Constructed from high-carbon chromium steel (SUJ2), it combines high hardness (HRC60-65) with excellent wear resistance, critical for durability in abrasive mining environments.

 

Key Performance Attributes
  • Material & Durability:
    • SUJ2 steel (1.35% carbon, 1.5% chromium) undergoes heat treatment to achieve HRC60-65 surface hardness, providing superior wear resistance. The material’s fine-grained structure ensures 50kN dynamic load capacity—30% higher than standard carbon steel bearings .
    • Double-lip FKM seals prevent contamination by rock dust and moisture, extending maintenance intervals by 50% compared to open bearings. Pre-greased with lithium complex grease ensures stable performance across -30°C to +120°C .
  • Precision Engineering:
    • IT5 dimensional tolerance (ISO 286-1) and ≤0.01mm radial play guarantee minimal runout, reducing vibration-induced wear on chuck components. Ra 0.1μm polished raceways minimize friction, enabling efficient operation at 1500rpm .
  • Operational Reliability:
    • Designed for 10,000 hours of service under rated conditions, it handles continuous rotation in R38 hydraulic rock drill chucks. The bearing’s press-fit design ensures secure installation in standard chuck housings, complying with ISO 10424-1 specifications .

 

Applications
  • Hydraulic Rock Drills: Critical for rotary chuck mechanisms in R38 models, supporting drill bit rotation.
  • Mining Equipment: Compatible with tunneling machines, quarry drills, and mineral exploration rigs requiring high-load rotary components.

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