ZYS precision bearing, ball bearings, roller bearings, bearing parts

In mechanical equipment, sealing methods are generally classified into static sealing and dynamic sealing. In wind power gearboxes, commonly used static sealing methods include non-metallic seals, non-metallic-metal combination seal gaskets, and sealants. For components such as plugs and bolts in the yaw, pitch, and main gearboxes, non-metal-metal combination gaskets are typically utilized. At oil line connections, O-rings—a type of non-metallic seal—are widely used. Similarly, yaw gearbox housings and ring gears, pitch gearbox housings and ring gears, as well as the main gearbox housing and ring gears, often rely on O-ring sealing. For through covers and blind covers, sealing adhesives are the preferred solution. In some instances, adhesive seals are also applied between the yaw or pitch gearbox housings and their respective ring gears. When it comes to dynamic sealing, these can be further divided into contact seals and non-contact seals. Contact seals include shaft oil seals and V-s...

On February 13, 2026, Ministry of Industry and Information Technology of the People's Republic of China (MIIT) issued Announcement No. 3 of 2026, approving the release of 453 industry standards. Among them, four recommended industry standards pertain to the field of   rolling bearings . These standards are detailed below: ________________________________________ Standard Number: JB/T 15540-2026 Standard Name: Spherical Plain Bearings — Self-lubricating Radial  Spherical Plain Bearings  for Aerospace Main Content: This document specifies the structural forms, coding methods, dimensions, and technical requirements for self-lubricating radial spherical plain bearings for aerospace. It describes corresponding test methods and stipulates requirements for inspection rules, marking, protective packaging, transportation, and storage. This document applies to the manufacturing of aerospace self-lubricating radial spherical plain bearings with PTFE fabric liners and either metric o...

Bloomberg New Energy Finance, BNEF released its annual report, Global Wind Turbine OEM Market Share 2025, on March 10, revealing that global wind power capacity additions reached a record high in 2025, marking the third consecutive year of record-breaking growth. The robust expansion of China's onshore wind sector was identified as the primary driver of global wind power growth, with China becoming the first market to add over 100GW of new capacity in a single year. In 2025, wind power developers worldwide added a total of 169GW of new capacity, representing a 38% year-on-year increase. Of this, 161GW came from onshore wind and 8GW from offshore wind installations. Cristian Dinca, BNEF wind energy analyst and lead author of the report, stated that China’s consistent and stable policy support over the past decade has concentrated wind power capacity growth in the country. Chinese wind turbine manufacturers have consistently held the top positions in the global market. In 2025, Chine...

On the afternoon of March 10, 2026, the Secretary-General Working Meeting of the China Bearing Industry Association (CBIA) was grandly held at the SINOMACH TDl lnternational Engineering Co., Ltd. (CMTIC). The meeting was attended by Zhou Yu, Chairman of CBIA; Niu Hui, Vice Chairman; Wang Zijun, Secretary-General; Liu Qiaofang, Han Jinke, Sun Shicheng, and Zhu Shaomin, Deputy Secretaries-General; Zhang Zhisong, Office Director; as well as the secretaries-general and principal leaders of various branch institutions. The meeting was chaired by Wang Zijun. At the start of the meeting, Hao Hongwei, Assistant to the General Manager of the Chinese Academy of Agricultural Mechanization Sciences Group Co., Ltd. (CAAMS), delivered a speech on behalf of the Planning and Development Advisory Committee. He stated that 2026 is a pivotal year for the strategic planning of the bearing industry. As the chairing unit of the CBIA Planning Committee, CMTIC has consistently aligned itself with national str...

The input shaft of a wind turbine gearbox typically operates at a rotational speed of 10–20 revolutions per minute (rpm). Due to the relatively low speed, the formation of the oil film for the input shaft bearing, also known as the planet carrier support bearing, is often challenging. The role of the oil film is to separate the two metal contact surfaces during bearing operation, preventing direct metal-to-metal contact. To evaluate the lubrication performance of a bearing, we can introduce a parameter, λ, which is defined as the ratio of the oil film thickness to the combined roughness of the two contact surfaces. If λ＞1, it indicates that the oil film is thick enough to fully separate the two metal surfaces, resulting in good lubrication performance. Conversely, if λ＜1, it means the oil film thickness is insufficient to completely separate the metal surfaces, leading to poor lubrication performance. Under such poor lubrication conditions, the bearing may suffer damage. Since wind tu...

Thin section bearings are specialized mechanical bearings developed through precision manufacturing processes. Their core characteristic is the small thickness ratio between the inner and outer diameters (typically less than 10% of the bearing diameter). These bearings offer advantages such as lightweight design, compact structure, low friction, and high rotational speed, making them essential transmission components in fields like precision machinery and automated equipment. Based on the type of rolling elements, contact forms, and structural features, precision thin-section bearings are primarily classified into three categories: equal-section thin-walled ball bearings, thin section crossed roller bearings, and thin section tapered roller bearings. Among these, equal-section thin-walled ball bearings serve as the core product series, offering the broadest application scenarios and meeting various light-load, high-precision transmission requirements. Core Product System of thin secti...

Globally, more than 10 billion sets of  bearings   are manufactured annually. In reality, only a small proportion of the bearings in use experience failure. The majority of bearings (approximately 90%) last longer than the maintenance cycles of the equipment in which they are installed. For safety reasons, some bearings (9.5%) are replaced before failure, while only about 0.5% of bearings are replaced after damage or failure. This means that approximately 50 million bearings are replaced each year due to damage or failure. Common Causes of  Bearing Damage or Failure The causes of bearing damage or failure are typically as follows: • One-third of failures are caused by fatigue. • One-third of failures are caused by lubrication issues, such as improper lubricant selection, incorrect lubrication quantity, or unreasonable lubrication intervals. • One-sixth of failures are caused by contamination, typically due to seal failure. • One-sixth of failures are caused by other facto...

Introduction The materials and manufacturing processes of wind turbine bearings significantly influence their performance and service life. Wind turbine bearings require materials with high strength, corrosion resistance, wear resistance, and self-lubricating properties. This article explores common materials and advanced surface treatment technologies used in the manufacturing of wind turbine bearings to enhance their durability and operational efficiency. Materials for Wind Turbine Bearings The choice of material is critical for the performance and durability of wind turbine bearings. Commonly used materials include high-strength steels, alloy steels, ceramics, and composite materials. High-Carbon Chromium Steel: Examples include GCr15 and GCr18Mo, which are widely used in rolling bearing manufacturing due to their high hardness and excellent wear resistance. Alloy Steels: Examples such as 20CrMo and 42CrMo offer superior toughness and impact resistance, making them ideal for high-...

Intelligent bearings are a cutting-edge branch of bearing technology, developed against the backdrop of advancements in mechanical, electronic, computer communication, and control technologies. As a mechatronic product, intelligent bearings integrate various sensors and control devices into traditional bearings, forming a unique structural unit. This enables the use of information processing and automatic control technologies to achieve real-time online monitoring and regulation of bearing operating conditions. Definition of Intelligent Bearings A typical intelligent bearing system consists of an improved bearing body and related accessories, miniature sensors embedded in the bearing body or related accessories, processing and transmission circuits (dedicated chips), acquisition cards, signal processing and analysis software, etc. It can realize intelligent processing of information such as bearing self-diagnosis, self-assessment and life prediction, and realize bearing performance re...

On the morning of March 3, Zhang Xiaobin, Secretary of the Party Committee and Chairman of SINOMACH Academy of Science and Technology Co., Ltd. (hereinafter referred to as "SINOMACH Academy"), and his delegation visited   Luoyang Bearing Research Institute Co., Ltd.   (ZYS) for an exchange. Chen Enhou, Secretary of the Party Committee and Chairman of ZYS, extended a warm welcome to the delegation. The two parties held in-depth discussions on the construction of a common technology research institute, project cooperation, and other areas. Jin Guodong, Deputy General Manager, Wang Kebei, Assistant General Manager of ZYS, and other relevant officials participated in the meeting. Chen Enhou warmly welcomed Zhang Xiaobin and his delegation, providing an overview of ZYS's history, business development, technological innovation, and strategic planning. He emphasized that as a leading technology-driven enterprise in  China's bearing industry , ZYS is at a critical stage of pr...

Wind turbine bearings are core components of wind power generation systems, operating in extreme environments with high maintenance costs, and requiring exceptional durability and reliability. As wind power is a vital renewable energy source, its development heavily depends on the support of high-performance bearings. The main bearings in wind turbines include yaw bearing assemblies, main shaft bearings, gearbox bearings, and generator bearings, with structural types covering four-point contact ball bearings, crossed roller bearings, cylindrical roller bearings, spherical roller bearings, and deep groove ball bearings. Among these, large yaw bearings and main shaft bearings present significant technical challenges, relying heavily on imports for a long time. These are critical bottlenecks for the localization of wind turbines. Achieving localization of wind turbine bearings will not only enhance the design and application level of the domestic bearing industry, narrow the gap with int...