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Precision-ground Cemented Carbide Balls are ultra-durable, high-performance spherical components crafted from tungsten carbide (WC-Co) and meticulously finished to achieve exceptional dimensional accuracy and surface perfection. Designed for applications demanding micron-level precision, these balls combine unmatched hardness, wear resistance, and smoothness, making them ideal for critical roles in advanced machinery, precision instruments, and high-stress industrial systems.
Key Features:
– Nanoscale Surface Finish: Precision-ground to ultra-smooth surfaces (Ra ≤ 0.1 μm) for minimal friction, optimal sealing, and superior performance in dynamic applications.
– Extreme Hardness: Tungsten carbide-cobalt composition delivers Vickers hardness up to 1800 HV, ensuring resistance to abrasion, deformation, and mechanical fatigue.
– Tight Tolerances: Diameter consistency within ±0.001mm and sphericity ≤0.0005mm, certified for high-precision alignment and load distribution.
– Thermal & Chemical Resilience: Stable performance in temperatures up to 600°C and resistance to corrosion, acids, alkalis, and oxidizing environments.
– Versatile Grades: Available in fine-grained, medium-grained, or customized WC-Co compositions (6%–15% cobalt) to balance hardness, toughness, and machinability.
Applications:
– Precision Bearings: Critical for high-speed spindle bearings, dental drills, and aerospace actuators requiring zero-tolerance performance.
– Valve Systems: Used in high-pressure fuel injectors, hydraulic valves, and chemical processing equipment for leak-free sealing.
– Semiconductor Manufacturing: Integral to wafer-handling robots, vacuum chambers, and precision positioning stages.
– Metrology & Instrumentation: Serve as reference spheres in coordinate measuring machines (CMMs) and optical alignment systems.
– Automotive & Robotics: Enhance durability in CV joints, robotic grippers, and automated assembly line components.
Advantages:
– Extended Service Life: Outperforms steel, ceramic, or silicon nitride alternatives, reducing replacement cycles and downtime.
– Energy Efficiency: Ultra-smooth surfaces minimize friction losses, improving system efficiency in high-speed operations.
– Customization Ready: Tailored diameters (0.5mm–50mm), coatings (e.g., diamond-like carbon, TiAlN), or surface treatments (e.g., super-polished, lapped) to meet specialized needs.
– Batch Consistency: Rigorous QC ensures uniform mechanical properties and geometry across large-scale production runs.
Technical Specifications:
– Material: Tungsten Carbide (WC) with Cobalt (Co) binder.
– Hardness: 1500–1800 HV (HRA 89–94).
– Dimensional Tolerance: ±0.001mm (customizable to ±0.0005mm).
– Surface Roughness: Ra ≤ 0.1 μm (optionally Ra ≤ 0.05 μm for ultra-high precision).
– Temperature Range: -200°C to +600°C.
– Certifications: ISO 9001, ISO 3290-1 compliant.
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