The bearing blackening treatment process, also known as black oxide treatment, is a chemical conversion process used to create a dark, corrosion-resistant surface on steel and other metal components. This surface helps to protect the metal from corrosion, wear, and damage caused by exposure to harsh environmental conditions, such as moisture, heat, and chemicals. The process involves immersing the metal parts in a hot alkaline solution containing sodium hydroxide, nitrites, and other chemicals.
During the process, a black oxide layer forms on the surface of the metal through a chemical reaction. This layer not only provides improved lubrication properties, which can help to reduce friction and extend the life of the bearing, but also provides a barrier against corrosion and improves the wear resistance of the metal part. Additionally, it also enhances the appearance of the metal, giving it a black or dark gray finish.
Black oxide treatment is commonly used on metal components such as screws, fasteners, gears, and bearings. It helps to improve the performance, durability, and aesthetics of metal components, particularly bearings, and it is often applied in the automotive, aerospace, and firearms industries, where corrosion resistance and aesthetics are important.
Luoyang E-find Precision Bearing specializes in the production of high-precision, high-rigidity,
heavy-load crossed roller bearings, rotary table bearings for 18 years.We have ISO, SGS certification, and professionally replaces IKO THK INA SKF and other foreign imported brands.
All bearings are processed by advanced CNC machine tools, ground three times by precision grinders, 100% inspected after each processing. All our bearings guaranteed for one year in normal working condition.
Our bearings are exported to more than 50 countries, such as the United States, Europe, South Korea, Japan, etc., and enjoy high reputation at home and abroad.
Our company value is let our custom succeed, so choose us is to choose high quality, choose rest assured. And we also welcome you to visit our factory, so please feel free to contact us if you have any requirements and want to know more about us.