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Application Of Cubic Boron Nitride (CBN) Grinding Wheel In Bearing Industry
Oct 20, 2017

Over the years the bearing manufacturer has been using corundum grinding wheels to grind hardened bearing steel parts. Although hundreds of millions of bearings have been manufactured with such kinds of grinding wheels, the productivity of the grinding wheel has been severely affected by the quick abrasion of the grinding wheel. At the same time, the rapid wear of the grinding wheel also had a very adverse impact on the grinding accuracy and surface roughness.

Cubic boron nitride (CBN) has the advantages of high hardness, high heat resistance and chemical inertness, good thermal conductivity. It is suitable for processing bearing steel, high speed steel, stainless steel, heat-resistant steel and other high hardness and high toughness materials. In 1980s, Germany successfully applied the ceramic bond CBN grinding wheel to the bearing surface grinding, create a precedent. Since then, many foreign bearing factories have successfully used CBN grinding wheel instead of ordinary corundum grinding wheel.

CBN grinding wheel life is more than 100 times the corundum wheels, but also it has high processing accuracy, good processing surface quality and high productivity.

In particular, ceramic bond CBN grinding wheel can be easy to fix, like ordinary grinding wheels.

Except for the bearing parts, gears, cutting tools, crankshaft, camshaft, ball screw and other parts are also used ceramic bond CBN grinding wheels.

CBN grinding wheel has its own characteristics, we must be research the CBN grinding wheel characteristic parameter, the grinding wheel dressing, the grinding fluid selection and the grinder development and so on.