C190000911 Drive Shaft for Rock Drill Jumbos – 5000 N·m Torque, 42CrMo4 Alloy, IT6 Precision
42CrMo4 alloy steel | Surface hardened to HRC50-55 | 3-4mm hardened layer depth

Shaft C190000911 High-Torque for Rock Drill Jumbos

Part Number: C190000911
  • Technical Specifications:
    • Material: 42CrMo4 alloy steel with quenching and tempering treatment
    • Torque Capacity:
    • Hardness:
    • Precision: IT6 dimensional tolerance (ISO 286-1)
    • Fatigue Strength: 650MPa at 10⁶ cycles
  • Design Features:
    • Connection: DIN 5480 spline (30 teeth, module 3)
    • Mounting: ISO 2230 keyway with M30 flange
    • Surface Finish: Ra 0.8μm (grinding process)
  • Performance Metrics:
    • Tensile Strength: 1200MPa
    • Yield Strength: 1080MPa
    • Operating Temperature: -20°C to +80°C
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High-Reliability Drive Shaft for Rock Drill Jumbos
This heavy-duty drive shaft is engineered to deliver exceptional torque transmission in harsh mining environments. Constructed from 42CrMo4 alloy steel with surface hardening treatment, it withstands continuous 5000 N·m torque while maintaining IT6 precision for vibration resistance and long service life.

 

Technical Specifications & Design
  • Material & Heat Treatment:
    • 42CrMo4 alloy steel (EN 10083-3) provides high tensile strength (1200MPa) and toughness, ideal for high-cycle fatigue applications.
    • Surface hardening via induction quenching achieves HRC50-55 hardness in a 3-4mm depth layer, enhancing wear resistance and load capacity.
  • Precision Machining:
    • IT6 dimensional tolerance (ISO 286-1) ensures seamless fit with mating components, reducing backlash and noise during operation.
    • Ra 0.8μm surface finish minimizes friction and extends lubricant lifespan.
  • Connection & Mounting:
    • DIN 5480 spline connection (30 teeth, module 3) allows efficient power transfer, while ISO 2230 keyway ensures axial alignment stability.
    • M30 mounting flange with 8.8-grade bolts resists loosening under dynamic loads.

 

Performance Advantages
  • Fatigue Resistance:
    • 650MPa fatigue strength at 10⁶ cycles ensures reliability in repetitive 凿岩作业，reducing maintenance intervals by 30% compared to standard shafts.
  • Environmental Adaptability:
    • Operates reliably from -20°C to +80°C with 95% humidity resistance, suitable for underground and outdoor mining conditions.
  • Safety Compliance:
    • Meets ISO 12044 standards for rotational components, ensuring compatibility with global mining equipment.

 

Applications
  • Rock Drill Jumbos: Powers hydraulic pumps, conveyor systems, and drill rotation mechanisms.
  • Mining Machinery: Supports loaders, crushers, and tunneling equipment requiring high-torque transmission.
  • Industrial Equipment: Ideal for heavy-duty drives in steel mills and construction machinery.

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