SKF bearing rings and rollover information

Source: China Bearing Network Time: 2017-12-03

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The most commonly used hardened bearing steel for all hardened bearing steels is a carbon-chromium steel; according to ISO 683-17:1999; rich in approximately 1% carbon and 1,5% chromium. Today; carbon-chromium steel is the oldest One of the most studied steels, due to the continuous improvement in the service life of extended bearings. This bearing steel provides the best balance between the production and application functions. This steel is generally passed through martensite or bainite heat. Dispose of; in this process it is hardened to a scale of 58 to 65 HRC.
In the past few years, the process has been carried out tougher hygienic specifications; the density and quality of SKF bearing steels have been significantly broken. The reduction of oxygen and harmful non-metallic inclusions has significantly improved the properties of bearing steel. Steel used in Explorer grade bearings (SKF Explorer grade bearings).
Induction Hardened Bearing Steel Data Surface Induction Hardening is supplied with selected hardened component raceways and some of the rest of the components are not affected by the quenching process. The steel grade and appearance are determined by the quenching process. The characteristics; this means that various features can be mixed in one component.
An example of this is the SKF flanged hub bearing assembly (HBU); the unhardened flange is characterized by resistance to layout fatigue; the raceway is depicted with anti-rolling touch fatigue.
Appearance of hardened bearing steel according to ISO 683-17:1999 is rich in 0,15% carbon chromium nickel and manganese chromium alloy steel is the most commonly used hardened steel for SKF bearings.
In the case of high tension interference cooperation and high impact load; it is recommended to use bearings with carburized ferrules and / or rolling elements.
Stainless steel bearing steel data The most commonly used stainless steel for SKF stainless steel bearing rings and tumbling parts is high chrome steel X65Cr14 according to ISO 683-17:2000 and high chrome steel X105CrMo17 according to EN 10088-1:1995.
Should be focused; for some uses; corrosion-resistant coatings may be an excellent alternative to stainless steel.
High-temperature bearing steels are specified for all hardened steels and hardened steels; depending on the type of bearing; the maximum operating temperature is between 120 and 200 degrees Celsius. Maximum operating temperature and heat treatment for the components used. The process is directly related.
For working temperatures up to 250 degrees Celsius; special heat treatment (safety) process can be used. In this case; it is necessary to consider that the bearing capacity of the bearing will drop.
For bearings that operate at high temperatures (above 250 degrees Celsius) for long periods of time; 80MoCrV42-16 high alloy steels conforming to ISO 683-17:1999 should be used; since such steels adhere to them even at extreme temperatures Hardness and outstanding bearing function.
Ceramic Materials Ceramic materials commonly used in SKF bearing rings and rollovers are bearing grade silicon nitride. It consists of elongated crystallites of beta silicon nitride in a glass phase. It provides excellent rollover bearings. Characteristics; such as high hardness, low density, low thermal expansion rate, high electrical resistivity, low dielectric constant and not affected by magnetic fields.

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