Ductile iron (GGG50) construction | Heat-resistant coating | -40°C to +120°C operating temperature range
Double-sealed ball bearing | 1500 RPM maximum speed | 0.02mm radial runout for smooth rotation
4110003577086 Tensioner Pulley for Rock Drill Jumbos – 500N Tension Force, Sealed Bearing, Heat-Resistant Coating

Tensioner Pulley 4110003577086 High-Durability for Rock Drill Jumbos

Part Number: 4110003577086
  • Technical Specifications:
    • Material: Ductile iron (GGG50) with 0.5mm chrome plating
    • Bearing type:
    • Operating temperature range: -40°C to +120°C
  • Performance Metrics:
    • Tension force: 500N (adjustable via spring mechanism)
    • Maximum rotational speed: 1500 RPM
    • Stroke range for tension adjustment: 10mm
  • Durability:
    • Wear resistance: 0.5mm chrome plating (ASTM B656 compliant)
    • Corrosion resistance: 72-hour salt spray test passed (ASTM B117)
  • Design Features:
    • Spring-loaded automatic tension compensation
    • Compatible with rubber and polyurethane drive belts
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Heavy-Duty Tensioner Pulley for Rock Drill Jumbos
This tensioner pulley is engineered to maintain optimal belt tension in rock drill jumbo drive systems, ensuring reliable power transmission in harsh mining environments. Its robust design minimizes belt slippage, reduces maintenance downtime, and extends the service life of drive components .

 

Technical Specifications & Design

 

  • Core Performance Traits:
    • Automatic Tension Maintenance: The spring-loaded mechanism maintains a consistent 500N tension across a 10mm stroke, compensating for belt stretch and thermal expansion during operation. This prevents both over-tensioning (which causes premature belt failure) and under-tensioning (which leads to slippage and energy loss) .
    • Durable Construction: Ductile iron (GGG50) provides high impact resistance (20J at -20°C), while the 0.5mm chrome plating enhances wear resistance in abrasive conditions. The double-sealed ball bearing prevents ingress of dust and moisture, a critical feature in mining environments .
    • Temperature Resilience: Operates reliably from -40°C (cold underground mines) to +120°C (high-friction drive systems), with no degradation in bearing performance or tension force .

 

Performance Advantages
  • Extended Component Life:
    • Reduces belt replacement frequency by 30% compared to fixed-tension pulleys, thanks to consistent tension control .
    • Low radial runout (0.02mm) ensures smooth rotation, minimizing vibration and noise in the drive system.
  • Environmental Adaptability:
    • Resistant to mineral oils, coolants, and road salts commonly encountered in mining operations.
    • 72-hour salt spray resistance (ASTM B117) ensures suitability for damp or humid environments .

 

Applications
  • Rock Drill Jumbos: Used in drill arm drive systems, hydraulic pump belts, and conveyor drives.
  • Mining Equipment: Compatible with loaders, excavators, and tunneling machines requiring belt tension management.
  • Industrial Machinery: Suitable for heavy-duty conveyors, crushers, and material handling systems.

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