As the correct product choice is critical for optimal performance, great care should be taken during selection. Bay Abrasives's specialist staff are available at all times, & will gladly assist you with fine-tuning your requirements. The following information will help us make an informed specification for the correct wheel for your application. As determined by International Standards, Superabrasive grinding wheels are described as in the following example :

WHEEL TYPES(SHAPES):

The wheel types are actually the shape of the wheel.In addition to the standard shapes & common sizes, wheels can be manufactured to your specific requirements, within equipment limitations.

DIAMOND or CBN ? (D or B prefix to grit size)

This choice is critical because CBN will NOT grind Tungsten carbide and a diamond wheel will not grind steel efficiantly.

DIAMOND:

Non-ferrous metals such as Tungsten Carbide, as well as ceramics & glass.

CBN:

Ferrous (containing iron) metals : hardened carbon & alloy steels, high speed steels, cast iron, tool & die steels, superalloys & hard stainless steels.

GRIT SIZES:

The choice of grit size is determined by the finish & amount of stock removal required, & affects the hardness & wear-resistance of a grinding wheel. It is basically divided into rough, medium, fine & polished grinding finishes. “Roughest acceptable finish” should be the deciding factor when choosing grit size, as finer grits have lower stock removal rates & higher wear rates.

DIAMOND
FEPA STANDARD MESH SIZE APPLICATION
D7 1400 - 1800 POLISH GRINDING
D15 1000 - 1400 POLISH GRINDING
D20 800 - 1000 POLISH GRINDING
D30 500 - 800 POLISH GRINDING
D46 325 - 400 FINE GRINDING
D54 270 - 325 FINE GRINDING
D64 230 - 270 FINE GRINDING
D76 200 - 230 MEDIUM GRINDING
D91 170 - 200 MEDIUM GRINDING
D107 140 - 170 MEDIUM GRINDING
D126 120 - 140 MEDIUM/ROUGH GRINDING
D151 100 - 120 ROUGH GRINDING
D181 80 - 100 ROUGH GRINDING
D252 60 - 80 ROUGH GRINDING

 

CBN
FEPA STANDARD MESH SIZE APPLICATION
B46 325 - 400 FINE GRINDING
B54 270 - 325 FINE GRINDING
B64 230 - 270 FINE GRINDING
B76 200 - 230 MEDIUM GRINDING
B91 170 - 200 MEDIUM GRINDING
B107 140 - 170 MEDIUM GRINDING
B126 120 - 140 MEDIUM/ROUGH GRINDING
B151 100 - 120 ROUGH GRINDING
B181 80 - 100 ROUGH GRINDING
B252 60 - 80 ROUGH GRINDING

Concentration:

The concentration of a diamond or CBN grinding wheel is determined by the grinding operation to be carried out.The choices available are :

CONCENTRATION
SYMBOL DESCRIPTION RECOMMENDED APPLICATIONS
C125 HIGH CONCENTRATION Profile grinding,Flute grinding and Slitting. Small area of contact up to 4mm.Wet grinding.
C100 HIGH CONCENTRATION Profile grinding,Flute grinding and slitting. Small area of contact up to 6mm. Wet grinding.
C75 MEDIUM CONCENTRATION Surface, cylindrical or tool grinding, saw & knife sharpening.Wet and dry.
C25-50 LOW CONCENTRATION Fine grinding and large area of contact. Preferably wet.

Bond:

Bay Abrasives offer various bonds to suit the wide variety of grinding applications. These range from friable, free-cutting bonds (suitable for dry grinding & polishing) to harder bonds (wet grinding & small areas of contact).

Please contact us for more information.