22 mm Gauge Ball Pair Hardened Chrome Steel 0.003 mm Accuracy, 0.00008 mm Diameter Tolerance - Metav IndustryLine

A compact matched pair of hardened chrome steel spheres with a 22 mm diameter and 0.003 mm accuracy provides a stable reference for calibration and precision inspection; the fine surface finish and tight diameter tolerance ensure reproducible results. Order the gauge sphere pair M318.452 directly via Metav Werkzeuge or ask our consultants if needed.

Gauge sphere pair M318.452 — hardened chrome steel precision gauges, 22 mm, 0.003 mm accuracy (Metav IndustryLine)

The gauge sphere pair M318.452 serves as a rugged reference for inspection benches, fixture set‑ups and roundness verification in toolrooms and quality labs.

• Hardened chrome steel >HRC 62
• 22 mm diameter, 0.003 mm accuracy
• Matched pair with 0.00008 mm tolerance
• Surface roughness Ra 0.00001

Measurement certainty for calibration and inspection

High‑accuracy metrology begins with stable reference artefacts. These precision spheres deliver 0.003 mm accuracy on a 22 mm diameter, supported by an exceptionally small diameter tolerance of 0.00008 mm. Such figures translate into lower measurement uncertainty when used as reference points for comparative checks, kinematic supports or roundness fixtures. The combination of tight tolerances and a mirror‑grade surface finish minimises artefact‑induced variation, so decision limits in inspection routines remain reliable and repeatable.

Material strength that preserves geometry

Manufactured from hardened chrome steel, the spheres are specified with hardness greater than HRC 62, giving excellent resistance to wear and deformation under repeated contact. The fine nominal surface roughness (Ra 0.00001) reduces micro‑asperity contact and contributes to a stable contact geometry with probes, V‑blocks or optical systems. The moderate mass (0.1 kg per pair) and compact geometry maintain thermal equilibrium quickly, which supports consistent results during short inspection cycles and comparative measurements.

Practical pairing and application scope

Delivered as a matched set of 2, the pair is intended for use as gauge balls in comparative measurements, alignment tasks, probe calibration and as reference points in coordinate inspections. The matched nature of the set minimises differential error between the two spheres, improving bilateral setups and kinematic referencing. The spheres are suitable for appli cations demanding traceable, repeatable contact standards in workshop metrology and quality control, where robust, long‑lasting reference artefacts reduce rework and downtime. The designation M318.452 identifies this specific configuration within the Metav IndustryLine range.

For reproducible reference measurements, request the Metav IndustryLine gauge sphere pair M318.452 from Metav Werkzeuge; contact our specialists at info@metav-werkzeuge.com or call +49 2822 7131930 for tailored advice

Technical data

• Article number: M318.452
• GTIN: 4054469184203
• Brand: Metav IndustryLine

Numbers / Core technical data

• Diameter: 22 mm
• Accuracy: 0.003 mm
• Diameter tolerance: 0.00008 mm
• Surface roughness (nominal): 0.00001
• Hardness: >HRC 62
• Weight (pair): 0.1 kg

Designs / Special features

• Material: hardened chrome steel
• Delivery format: matched pair
• Pieces per set: 2
• Category: Gauges

FAQ

What are the primary uses for these gauge spheres? The gauge sphere pair M318.452 is intended for reference and calibration tasks, probe checks, kinematic referencing and comparative measurement set‑ups in inspection and toolroom environments.

How precise are the spheres for high‑accuracy applications? The spheres provide 0.003 mm accuracy with a diameter tolerance of 0.00008 mm, supported by a very fine surface finish; this makes them suitable for demanding metrology tasks where low measurement uncertainty is required.

Are the spheres supplied as a matched set? Yes, the product is delivered as a matched set of 2, specifically prepared to minimise differential errors in dual‑point setups.

What material and hardness are specified for long‑term stability? Constructed from hardened chrome steel with a hardness greater than HRC 62, the spheres resist wear and maintain geometry under repeated use.

What identifiers help with ordering and traceability? The SKU/article number is M318.452 and the GTIN is 4054469184203 for inventory and traceability purposes.

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