A super abrasive CBN wheel Ø 200x40x32 B91

The Super-Abrasive CBN wheel (Borazon) is a technology mainly used in industrial production. Characterized by an abrasive specially designed for alloy steels such as HSS, it allows accurate sharpening in a short time.

The grain size is B91, it is a super abrasive and therefore uses a FEPA coding.

There is no real conversion table with respect to the standard grain sizes of traditional abrasives (oxides), but we can compare it to a G120 if rotated at modest speeds, or even to G150 or G 180 if rotated at high speed.

In any case, there is no "loss of sharpness" effect typical of traditional abrasives, nor "clogging" if used exclusively for sharpening HSS.

The body of the wheel is made of aluminum and therefore optimally dissipates the heat produced by sharpening, therefore there is an excellent result both if used at medium speed (1400rpm) and at high speed (2900rpm).

Its lightness does not stress and does not damage the bearings of the machine, as competitors' wheels which are made of steel (old technology).

Used dry at the recommended rotation speed of 2900 rpm, it allows you to take advantage of the quality of the wheel. The metal support of the grinding wheel allows the sharpening heat to be dissipated well, the increase in speed generates a bebetter-sharpenedurface but also an increase in heat which could overheat the gouge edge, it is advisable to have a light hand.

Possible mounting on bench grinding wheel diameter 200 mm (requires adjustment washers) and on a lathe (with special grinding wheel holder shaft)