WoodRiver CBN Grinding Wheel
When I find a good product I tell folks about it; when I find an excellent product I sell it. This grinding wheel is one of those rare above excellent products I run across every now and then. I am so impressed by this grinding wheel that I replaced all the grinding wheels in my shop with this one. It is such an improvement on my old ceramic stone grinding wheels thats its almost unbelievable!
Here is what I love about this grinding wheel:
120-Grit, Cubic Boron Nitride (CBN) coated wheel, cuts significantly faster as compared to Aluminum Oxide or other ceramic wheels.
8" diameter x 1" wide, with 5/8" arbor.
Wheel balance is not an issue because the wheel is machined from solid steel plate.
Coated with CBN from edge to edge, as well as for a short distance down the face.
Solid steel wheel acts like a heat sink making tool overheating or burning much less likely.
CBN coating never loads up or requires dressing.
Economical: the CBN coating lasts for years under normal use
Cubic boron nitride, commonly known as CBN, is a man-made synthetic abrasive. CBN is made from cubic boron nitride grains bonded together by ceramic material. CBN is the second hardest material after synthetic diamonds.
The process of making CBN abrasive is similar to that of synthetic diamonds: scientists treat hexagonal boron nitride at high temperature and pressure to create cubic boron nitride and treat graphite in the same way to create diamond.
CBN is well suited for ferrous materials in grinding operations, as it will not carbonize when interacting with iron (Fe), as diamond abrasives may. Typically, CBN is used for grinding steel, cast iron, die steel, tool steel, super alloys, and in some cases ceramic materials.
CBN has several attractive characteristics that make it superior to diamond in grinding operations:
Withstands heat, especially during high-speed applications
Does not cause grit that can dull bits
Stays sharp and cool because it does not react with steel
Diamonds can also react with transition metals, limiting their usefulness for grinding certain materials. Cubic boron nitride is stable and does not tend to react unfavorably with standard transition metals.
CBN grinding wheels are made by electroplating CBN particles on steel, using electroplated nickel to hold the grit in place. A single layer of CBN grit applied to the surface of a metal disc can grind even the hardest surfaces and last for years.