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ZYS first 8MW full range of wind turbine gearbox bearings has been installed
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Recently, the first domestically produced 8MW full range of wind turbine gearbox bearings developed by ZYS successfully passed the test. All performance indicators are excellent and meet the design requirements of gearboxes and complete machines, marking a new breakthrough for ZYS in the localization of large-megawatt wind power gearbox bearings. The 8MW full series of wind turbine gearbox bearings has 8 specifications and 38 sets, including planetary carriers and planetary wheel bearings at all levels, which can meet the use requirements of low-speed shafts, intermediate shafts and high-speed shafts. The type test is carried out strictly in accordance with the technical specifications. Under full load and rated speed conditions, the vibration and temperature rise test data of the bearings are excellent and have been unanimously recognized by users. In view of the technical difficulties of bearings in different positions of wind turbine gearboxes, ZYS BEARING has establishe
Material selection of rolling bearing ring and rolling element
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Rolling bearings are a type of bearing that we often use in our daily lives. Rolling bearings are mainly composed of an outer ring, an inner ring, rolling elements and a cage. For the rings and rolling elements of rolling bearings , the choice of material is very important. These two components can determine the performance and use of rolling bearings. We can choose the materials that meet the needs of rolling bearing rings and rolling elements. 1. High carbon chromium bearing steel Most bearing rings and rolling elements are made of special steel. The rings and rolling elements are made of high carbon chromium bearing steel (GCr15, GCr15SiMn, ZGCr15 and ZGCr15SiMn), and the hardness of the parts is as follows: The rings and rollers made of GCr15 and ZGCr15 materials are HRC61~65, and the steel balls are HRC62~66; The rings and rollers made of GCr15SiMn and ZGCr15SiMn materials are HRC60~64, and the steel balls are HRC60~66. Bearings made of high carbon chromium bearing steel a