Wheel marking
The wheel marking system, read the way you write it
A wheel is described by a string of marks, and Kabaido reads each part in order: shape, then abrasive, then grit, then grade, then bond.
The shape comes first. A 1A1 straight wheel, an 11V9 flaring cup, a 6A2 dish: the ISO form sets the geometry and the dimensions that go with it. After the shape comes the abrasive itself, whether that is aluminium oxide, silicon carbide or one of the superabrasives, CBN and diamond.
Grit comes next, kept exactly as marked so 60, 120, B126 and D64 all stay verbatim rather than being rounded or guessed. Then the grade, the hardness of the bond holding the grit, and finally the bond type itself: vitrified, resin or metal. Each mark lands on a typed attribute, so a search for a 200 mm surface wheel at A60K narrows to the one that fits.
Maximum operating speed is a hard requirement, not a nice to have. A candidate wheel has to meet or exceed the stated speed, so an unsafe match is filtered out rather than offered. The abrasives knowledge pack and the rest of the typed schema sit behind the catalogue.