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A grinding wheel specification is a coded marking on the wheel that describes its abrasive type, grit size, hardness grade, structure, and bond. Understanding the grinding wheel specification lets you choose the right wheel for your material and finish.
Was ist eine Spezifikation für eine Schleifscheibe?
Grinding wheels carry a standardized marking such as "A 46 N 5 V" or "C 60 K 7 V". Each letter and number stands for a specific property of the wheel. Reading the specification correctly is essential for safe and efficient grinding.
Erklärung des Schleifscheiben-Kennzeichnungssystems
The first letter indicates the abrasive type. A is aluminium oxide for steel and ferrous metals, C is silicon carbide for non-ferrous materials, WA is white aluminium oxide for hardened steel, and CBN or diamond letters mark superabrasive wheels.
Abriebtyp: A, C und weitere
The grit number indicates abrasive grain size. Coarse grits (16-24) remove material fast; medium grits (36-60) suit general grinding; fine grits (80-220) give smooth finishes. The grade letter (A soft to Z hard) controls how tightly the grains are held.
Körnung und Grad
Structure numbers (1-15) describe grain spacing - open structure for cool grinding and soft materials, dense structure for heavy pressure. The bond letter (V vitrified, B resinoid, R rubber, M metal) holds the grains and determines wheel characteristics.
Struktur- und Bindungstypen
- Schleifscheibe: Schleifscheibe Körnung: Körnung Härtegrad: Härtegrad Bindung: Bindung Markierungen der Schleifscheibe (z. B. „A 46 N 5 V“) bleiben unverändert.
- Körnung: 16–24 – grob (schnelle Abtragung); 36–60 – mittel (allgemeine Anwendung); 80–220 – fein (Feinabwicklung).
- Grade: Von A (weich) bis Z (hart); Hartmaterialien benötigen weichere Grade, weiche Materialien benötigen härtere Grade.
- Struktur: 1 (dicht) bis 15 (offen); Offene Struktur für kühlendes Schneiden, dichte Struktur für hohe Belastungen.
- Bindung: V = vitrifiert (Präzisionsbearbeitung), B = resinoid (härtesetzend), R = Gummi, M = Metall (superabrasiv).
How to Read Common Wheel Markings
For example, "A 46 N 5 V" is an aluminium oxide wheel, grit 46, medium-hard grade N, structure 5, vitrified bond - a typical general-purpose grinding wheel. "WA 80 J 8 V" is white aluminium oxide, fine grit, soft grade, open structure for hardened steel finishing.
Matching the Specification to Your Job
For help choosing the right Schleifscheibe for your application, send us your material, finish, and machine parameters.
Match the specification to your work: coarse grit and hard grade for soft materials and heavy removal, fine grit and soft grade for hard materials and fine finish. Consult the wheel marking chart or our engineers to select the correct wheel.
