3mm Ceramic Gauge Ball (Si3N4) 0.003mm Accuracy, HV1400-1700 Hardness - Metav IndustryLine

Benefit from the combination of Si3N4 ceramic durability, a 3 mm nominal diameter and 0.003 mm accuracy for reliable reference measurements and reduced rework. Order the gauge ball directly via Metav Werkzeuge or ask our consultants for application-specific advice.

Ceramic gauge ball M318.433 – Si3N4, 3 mm, 0.003 mm accuracy (Metav IndustryLine)

The Ceramic gauge ball M318.433 is a compact precision reference sphere designed for gauging, calibration rigs and metrology fixtures in workshop and laboratory environments.

• Si3N4 ceramic, high wear resistance
• Nominal diameter 3 mm with tight tolerance
• Diameter deviation 0.00008 mm
• Hardness HV1400–1700 for long service life

Durable ceramic for repeatable reference points

Manufactured from Si3N4 ceramic, this reference sphere combines low wear with thermal stability to deliver consistent dimensional behaviour over extended use. The high hardness HV1400–1700 reduces surface damage during contact probing, which in turn preserves measuring integrity and lowers the frequency of replacements. As a compact reference element, it is suitable for tight fixtures where a small, stable contact geometry is required, contributing to reliable production throughput and fewer calibration interruptions.

Measurable precision that improves process control

With a specified accuracy of 0.003 mm and a diameter tolerance of 0.00008 mm, the sphere gives quantifiable assurance when used as a reference for comparative measurements or for setting up gauge blocks and alignment fixtures. The very low surface roughness (0.00001) supports consistent probe contact and reduces scatter in repeated measurements. These properties help to tighten process control, shorten setup times and reduce downstream inspection uncertainty in machining and assembly operations.

Practical form factor and workshop integration

The 3 mm diameter offers a compact contact point that integrates easily into measurement jigs, fixtures and CMM adapters without occupying excessive space. At a nominal weight of 0.08 kg, handling and placement are straightforward, while the material’s chemical inertness simplifies cleaning and long‑term storage. Where a stable, miniature sphere is required for reference or gauging tasks, this precision component serves as a durable and low‑maintenance option that supports steady metrological practice.

For dependable, repeatable reference measurements, specify the Metav IndustryLine ceramic gauge ball M318.433 and contact Metav Werkzeuge in Emmerich for application advice and supply

Technical data

• Article number: M318.433
• GTIN: 4054469184333
• Material: Ceramic (Si3N4)
• Nominal diameter: 3 mm
• Accuracy: 0.003 mm

Core data

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

Applications & features

• Application: Gauging and precision reference use
• Category: Gauges (Lehren)
• Use cases: Calibration, fixture alignment, CMM reference sphere
• Story trigger: lehr‑/gauge applications

FAQ

What applications is this ceramic sphere intended for?
The Ceramic gauge ball M318.433 from Metav IndustryLine is intended as a precision reference sphere for gauging, calibration fixtures and as a probing reference on CMMs and metrology rigs.

What does an accuracy of 0.003 mm mean in practice?
An accuracy of 0.003 mm denotes the maximum deviation from the nominal diameter expected for the gauge ball; this level of precision enables repeatable reference measurements and reliable comparative checks.

How durable is Si3N4 for probing and repeated contact?
Si3N4 ceramic offers high wear resistance and chemical inertness; with a hardness of HV1400–1700, the sphere resists surface damage from repeated probe contact, extending service life and maintaining measurement stability.

How should the sphere be handled and stored to preserve accuracy?
Handle the sphere with clean gloves, avoid dropping, and store it in a protective case or padded holder; clean gently with a lint‑free cloth and suitable solvent if necessary to maintain the contact surface.

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