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

Take advantage of the combination of Si3N4 ceramic construction, 0.003 mm measurement accuracy and an ultra‑smooth surface to ensure repeatable gauge and calibration results; order through Metav Werkzeuge or consult Metav's technical team for specification checks.

Ceramic measuring ball M318.435 — 5 mm, 0.003 mm accuracy (Metav IndustryLine)

A ceramic measuring ball M318.435 designed for high‑precision gauging and calibration tasks in metrology and tooling inspection.

• Si3N4 ceramic for high hardness and wear resistance
• 5 mm diameter with 0.003 mm measurement accuracy
• Ultra-smooth surface finish for repeatable results

Engineered for repeatable precision in inspection

The gauge ball is manufactured to deliver consistent, reproducible contact conditions: the 0.003 mm stated accuracy and a diameter tolerance of 0.00008 mm minimise uncertainty when used in comparators, ring gauges or probe tips. A low surface roughness (Ra 0.00001) reduces micro‑slippage at the contact point, which in turn improves repeatability for comparative measurements. By specifying a compact 5 mm diameter in Si3N4 ceramic, the design balances minimal contact area with mechanical stability, making the component suitable for both bench‑top inspection and integration into measuring fixtures.

Material properties that reduce downtime and wear

Made from Si3N4 ceramic, the sphere offers exceptionally high hardness (HV1400‑1700) and resistance to abrasive wear compared with typical metal balls. This improves service life in high‑cycle inspection environments and lowers the need for frequent replacement or recalibration of gauge components. The ceramic composition also exhibits good dimensional stability under normal workshop temperatures; together with the fine surface finish, these properties help maintain measurement integrity over repeated use and across manufacturing batches.

Practical applications and integration advice

The measuring sphere is optimised for use in gauges, comparators, tactile probe tips and precision fixtures where a defined, hard, wear‑resistant contact is required. Its compact form factor suits tight probe geometries and confined inspection zones within assembly jigs. Metav IndustryLine supplies the component with clear identification (SKU M318.435, GTIN 4054469184357) so traceability is straightforward when incorporated into quality protocols. For selection of the correct ball diameter or suitability in a specific fixture type, Metav's technical documentation and product specialists can advise on compatibility with existing measuring equipment.

Request availability and tailored technical advice from Metav Werkzeuge — contact the Emmerich office for batch information and specification confirmation regarding the M318.435.

Technical data

• Article number: M318.435
• GTIN: 4054469184357
• Material: Ceramic (Si3N4)
• Diameter: 5 mm

Facts

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

Special features

• For gauges and calibration
• Very low surface roughness
• High wear resistance
• Suitable for precision measuring equipment

FAQ

What material is the M318.435 made from?
The M318.435 is manufactured from Si3N4 ceramic, chosen for its high hardness and wear resistance in precision gauging applications.

What accuracy and tolerance can be expected from this measuring ball?
The gauge ball offers a measurement accuracy of 0.003 mm with a diameter tolerance of 0.00008 mm, providing a stable reference for comparative and contact measurements.

Which applications suit this ceramic measuring sphere best?
Typical uses include ring gauges, comparators, tactile probe tips and precision fixtures where a small, hard contact element improves repeatability.

Is the surface finish important for measurement reliability?
Yes, the very low surface roughness (Ra 0.00001) of the M318.435 reduces contact variability and supports consistent measurement results.

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