Rotary Bushing 15233108 High-Wear Resistance Shaft Support for Rock Drills

Key Features

• Exceptional Wear Resistance
  Constructed from heat-treated alloy steel with a proprietary anti-friction coating, the bushing resists abrasion from rock debris and metal-to-metal contact, extending service life by up to 30% in high-wear conditions (e.g., hard-rock drilling with compressive strength >150 MPa).
• Precision Engineering
  Manufactured to ISO 2768-1 fine-class tolerances, the bushing ensures a tight, vibration-resistant fit with drill shafts, minimizing radial play (≤0.05 mm) and reducing stress on adjacent components like gears, bearings, and seals.
• Environmental Durability
  A zinc-nickel alloy plating on the outer surface provides corrosion resistance in wet or acidic environments (e.g., underground mines with pH 4–6 water), while the inner coating reduces friction coefficients by 20% compared to standard bushings.

Applications

• Underground Mining: Ideal for jumbos, raise drills, and longhole rigs requiring precise shaft alignment in narrow drifts (minimum width 2.7 meters) or deep tunnels (3.44–5.88 meters in diameter).
• Surface Drilling: Suitable for crawler-mounted drills in open-pit quarries, supporting medium-to-deep hole drilling (89–165 mm diameter) and reducing vibration-induced wear in hard-rock formations.
• Construction & Tunneling: Compatible with hydraulic drills used in tunnel boring, foundation drilling, and pile driving, ensuring stable performance in confined spaces and high-impact conditions.

Benefits for Industrial Operations

• Reduced Downtime: Durable design minimizes replacement frequency, cutting maintenance-related shutdowns by up to 40% compared to standard bushings.
• Enhanced Efficiency: Low-friction surface reduces energy loss, improving drill bit rotation speed by 5–10% and enhancing overall penetration rates.
• Cost Savings: Protects expensive components like gears and seals from premature wear, lowering total cost of ownership by 20–30% over the bushing’s service life.

Installation & Maintenance

• Installation:
  1. Clean the shaft and housing to remove debris or old lubricant.
  2. Use a hydraulic press to install the bushing with an interference fit (0.02–0.05 mm) to ensure secure positioning.
• Maintenance:
  • Re-lubricate every 200 operating hours with high-temperature grease to maintain optimal friction performance.
  • Inspect for surface scoring, dimensional changes, or excessive play during routine equipment checks; replace at the first sign of wear.
• Storage: Store in a dry, sealed container to prevent moisture ingress and coating damage.