• Increase the service life of bearings

    For railway and rolling mill bearings that bear large impact loads, the main failure forms when used after M quenching are: inner sleeve cracking during assembly, outer ring flange falling off and inner ring cracking during use, while isothermal quen......

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  • Reduce quenching and grinding cracks

    In the production of railway and rolling mill bearings, due to the large size and heavy weight of the ferrule, the M structure is brittle during oil quenching. In order to obtain high hardness after quenching, strong cooling measures are often taken,......

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  • Stable hardness and good uniformity

    Because BL transformation is a slow process, generally GCr15 steel takes 4h, GCr18Mo steel takes 5h, the ferrule is isothermal in nitrate for a long time, and the surface and core structure transformation is almost carried out at the same time, so th......

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  • What is the pur***e of bearing heat treatment?

    (1) The application scope of GCr15 steel has been expanded. Generally, the effective wall thickness of the ferrule when GCr15 steel m is quenched is less than 12mm, but due to the strong cooling capacity of nitrate salt during BL quenching, if measur......

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  • How to calculate the friction torque of the bearing?

    One method of calculating the friction torque of rolling bearings is to divide the friction torque into independent parts, including the torque M0 which is not affected by the load and the torque M1 which depends on the load, and then add the two tog......

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  • Which foundry makes the bearing pedestal better?

    If you want to find a good foundry, you can directly go to Baidu or other websites to inquire. Then find out the manufacturers who can visit and cooperate. If there is no location requirement, you can take a look at Hefei Quansheng machinery. Hefei Q......

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