9 mm Ceramic Measurement Ball (Si3N4) 0.003 mm Accuracy, HV1400–1700 Hardness - Metav IndustryLine

Benefit from the combination of Si3N4 ceramic construction, sub‑millimetre consistency and exceptional surface quality to improve gauge repeatability and reduce inspection variation. Choose this spherical reference for stable contact geometry and reliable long‑term performance; order directly via Metav Werkzeuge or consult our metrology advisors for application support.

Ceramic measuring ball (Si3N4) M318.439 — 9 mm, 0.003 mm accuracy | Metav IndustryLine

The Ceramic measuring ball (Si3N4) serves as a compact, high‑stability reference sphere for gauges and dimensional inspection in metrology and toolmaking environments.

• Si3N4 ceramic, high hardness HV1400–1700
• 9 mm diameter with 0.003 mm accuracy
• Ultra‑smooth surface Ra 0.00001

Precision that shortens inspection cycles

Precision inspection depends on stable, repeatable contact points; the Ceramic measuring ball (Si3N4) delivers a defined spherical reference with 0.003 mm accuracy and a diameter of 9 mm, enabling predictable probe responses and reduced measurement scatter. The low surface roughness and tight diameter tolerance contribute to consistent seating and minimal micro‑movement during gauge checks, which shortens set‑up times and improves throughput in batch inspection. Where interchangeable fixtures and quick verification are required, a compact reference sphere simplifies alignment and reduces the need for repeated compensation.

Durability and dimensional stability for repeated use

Manufactured from Si3N4, the sphere combines high hardness with thermal and wear resistance, giving long service life in routine inspection tasks. The HV1400–1700 hardness rating and ultra‑smooth surface support sustained contact with probes and tactile instruments while limiting abrasive wear. The modest mass and compact 9 mm form factor make the sphere easy to integrate into existing gauge blocks, detectors or master sets without adding undue inertia; this aids handling and reduces the risk of measurement error caused by movement or deformation.

Straightforward integration into inspection workflows

Labelling and identification (SKU M318.439, GTIN provided) simplify inventory control and traceability for quality systems. The combination of material properties and micrometric accuracy makes the sphere suitable for use as a master reference in comparative checks, fixture calibration and fixture‑to‑CMM transfers. Its compatibility with standard metrology accessories means it can be mounted or located in typical gauge interfaces without bespoke adaptors, so measuring stations can be standardised across production lines. The clear numeric specifications enable a rational decision on suitability for specific tolerance stacks or verification protocols.

Contact Metav Werkzeuge today to discuss the suitability of M318.439 for gauge references or precision fixtures and to request stock and technical advice via info@metav-werkzeuge.com or +49 2822 7131930

Technical Data

• Article number: M318.439
• GTIN: 4054469184395
• Material: Ceramic (Si3N4)
• Diameter: 9 mm
• Accuracy: 0.003 mm
• Diameter tolerance: 0.00008
• Surface roughness Ra: 0.00001
• Hardness: HV1400–1700
• Weight: 0.08 kg

Facts

• Diameter: 9 mm
• Accuracy: 0.003 mm
• Diameter tolerance: 0.00008
• Surface roughness Ra: 0.00001
• Weight: 0.08 kg
• Hardness: HV1400–1700

Special features

• Material: Si3N4 ceramic
• Application: gauge and dimensional inspection
• Category: gauges (Lehren)
• Identification: SKU M318.439, GTIN 4054469184395

FAQ

What is the primary application for this ceramic measuring sphere?
The Ceramic measuring ball (Si3N4) M318.439 from Metav IndustryLine is intended as a reference sphere for gauges, fixture checks and dimensional inspections where a defined contact geometry improves repeatability.

How precise is the sphere for reference measurements?
The sphere offers an accuracy of 0.003 mm with a diameter of 9 mm and a diameter tolerance of 0.00008, providing a stable reference for comparative and fixture verification tasks.

Is the ceramic material suitable for long‑term use under regular contact?
Yes. Si3N4 ceramic with a hardness of HV1400–1700 and an ultra‑smooth surface finish minimises wear and supports sustained, repeatable contacts in routine inspection.

Can the sphere be used directly in standard gauge fixtures?
The compact 9 mm size and defined geometry allow straightforward placement in common gauge and fixture arrangements, easing integration into existing inspection workflows.

Manufacturer / Responsible: Metav Werkzeuge GmbH; Parkring 45; 46446 Emmerich; Germany; +49 2822 7131930; info@metav-werkzeuge.com