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

The year 2026 marks the beginning of China's 15th Five-Year Plan. To fully implement the guiding principles of the Fourth Plenary Session of the 20th CPC Central Committee and the strategic arrangements outlined at the annual work conference of SINOMACH,   ZYS   convened a promotion meeting to communicate and implement the newly released Management Measures for Major New Product Development Projects. The meeting aims to accelerate the integration of technological innovation with industrial development, promote technological advancement, and optimize product structure. The meeting was chaired by Mr. Li Wenchao, Deputy General Manager and Chief Engineer of ZYS. More than 150 participants attended the session, including company leadership, representatives from the Technology Center, Sales Center, various business divisions, and functional departments. In his speech, Mr. Li Wenchao emphasized the strategic importance of major new product development projects to the high-quality de...

In the world of precision engineering and industrial machinery, Four Point Angular Contact Ball Bearings play a crucial role in handling combined loads and optimizing design space. These specialized bearings are widely used across industries such as robotics, machine tools, and automotive systems due to their unique structure and performance characteristics. What Are Four Point Angular Contact Ball Bearings? A Four Point Angular Contact Ball Bearing is a type of single-row bearing designed to support axial loads in both directions, as well as limited radial loads. The inner ring is split into two halves, enabling the bearing to form four contact points with the balls — hence the name. This design allows the bearing to accommodate complex loading conditions with high precision. Key Applications Industrial Machinery: In heavy-duty equipment like CNC machines and gearboxes, four point bearings are used to support rotating shafts that experience both axial and radial loads. Their compact ...

Suzhou, China – January 15, 2026 — The China Bearing Industry Association (CBIA) successfully hosted the 2025 Bearing Industry Development Conference in Suzhou, under the central theme:“Endeavors during the 14th Five-Year Plan and a New Journey into the 15th Five-Year Plan.” The conference aimed to comprehensively review the achievements of the past five years, analyze the current development landscape, and collaboratively chart a roadmap for the future of China's bearing industry. Reflecting on Achievements, Embracing the Future In his opening remarks, Mr. Zhou Yu, President of CBIA, highlighted that the 14th Five-Year period was a defining era for the industry. Despite facing global uncertainties and the disruptions of pandemic, the bearing sector achieved: • Significant expansion in industrial scale, with projected revenue surpassing RMB 240 billion by 2025 • Breakthroughs supporting national strategic needs, including: o High-speed railway bearing trials o Leadershi...

In the world of precision engineering and rotating equipment, choosing the right bearing is critical for performance, durability, and efficiency. Among the many types available, four point angular contact ball bearings are a specific solution designed to accommodate both radial and axial loads — especially when the axial load acts in both directions. But what exactly sets a four point bearing apart from a standard angular contact ball bearing , and when is it the optimal choice? What Is a Four Point Angular Contact Ball Bearing? A four point contact bearing is a type of single-row angular contact ball bearing that is uniquely designed to handle axial loads in both directions — thanks to a split inner or outer ring, and a contact angle of approximately 35°. This special design allows the bearing to support axial force from either direction, as well as a limited amount of radial load. Unlike traditional angular contact ball bearings, which require pairing (in duplex arrangements) to han...

Due to their compact size, excellent operational stability, high rotational accuracy, and rigid structure, small crossed roller bearings are widely applied in machine tool rotary tables, medical imaging equipment, industrial robotic arms, and rotating modules of precision detection devices. These components often undergo frequent start-stop cycles, making it critical to study their friction torque characteristics to enhance performance and longevity. Research Background In recent years, research on crossed roller bearings has primarily focused on: Bearing fault diagnosis Manufacturing process optimization Raceway roundness error influence Negative clearance effects on stiffness However, there is limited study on the friction torque behavior of miniature crossed roller bearings, especially under complex load conditions such as overturning moments. This article develops a mechanical model that considers raceway angle deviations and validates it experimentally to investigate how radial c...

  The first meeting of the ninth National Technical Committee for Standardization of Rolling Bearings and the election of its new term were held in Zhengzhou, Henan Province, from January 12 to 16, 2026. Tan Xiangning, Deputy Chief Engineer of China Machinery Industry Federation, Zhou Yu, Chairman of China Bearing Industry Association, Wei Jianhe, Director of Standardization Department of Henan Provincial Market Supervision Administration, and Jiang Wei, Chairman of National Rolling Bearing Standardization Technical Committee and Chairman of Sinomach Precision Industry Group Co., Ltd., attended the meeting. The meeting was hosted by  Luoyang Bearing Research Institute Co., Ltd. , and 66 committee members (including 9 committee representatives) attended the meeting, accounting for 98.5% of the total 67 committee members who should have attended. A total of 96 representatives, including the standard drafters, the secretariat, and other attendees, participated in the meeting. Th...

From January 12 to 13, Chairman Chen Chen of Zhongnan Company, along with her delegation, visited   Luoyang Bearing Research Institute Co., Ltd. (ZYS)   for a business exchange. ZYS Party Secretary and Chairman Chen Enhou, and General Manager and Deputy Party Secretary Jiang Wei warmly received the guests. The two sides held in-depth discussions on topics such as raw material procurement, supply assurance, and collaborative development, reaching a deeper consensus on future cooperation. ZYS Deputy General Manager Jin Guodong, Assistant General Manager and Head of Sales Center Xie Pengfei, and other relevant representatives also attended the meeting. Chen Enhou extended a warm welcome to the delegation and shared an overview of ZYS's history, business development, technological innovation, and strategic planning. He noted that the cooperation between ZYS and Zhongnan Company has grown significantly in recent years. As a leading technology-driven enterprise in China’s bearing in...

For industries relying on high-performance machinery, cylindrical roller bearing s are a critical component. Known for their ability to carry heavy radial loads and operate at high speeds, these bearings are widely used in gearboxes, electric motors, pumps, and large-scale industrial equipment. However, even the most durable bearings require regular maintenance to prevent premature failure and unplanned downtime. Why Maintenance of Cylindrical Roller Bearings Is Crucial Improper maintenance is one of the leading causes of bearing failure. Regular inspections, proper lubrication, and early detection of wear can significantly extend the life of a cylindrical roller bearing and improve machine reliability. Key Maintenance Practices for Cylindrical Roller Bearings 1. Regular Inspection Visual and mechanical inspections should be part of your routine maintenance schedule. Look for signs of: Excessive wear or pitting on rollers and raceways Discoloration indicating overheating Rust or corros...

December 17, 2025 — The Ministry of Industry and Information Technology of the People's Republic of China has approved the release of 748 industry standards under Announcement No. 41 of 2025. Among these, three recommended industry standards related to the rolling bearings sector have been published, representing significant updates to technical requirements and specifications for key bearing product categories. The newly issued standards in the rolling bearings field are as follows: 1. JB/T 5305–2025 Title: Rolling Bearings — Thrust Ball Bearings with Spherical Washers — Product Geometry Specifications (GPS) and Tolerances Scope and Key Content: This standard specifies the product geometry specifications (GPS) and tolerance values for thrust ball bearings equipped with spherical washers. It applies to unidirectional thrust ball bearings of the 53000 and 53000U series and bidirectional thrust ball bearings of the 54000 and 54000U series with spherical washers, whose overall dimensi...

  In recent months, faced with a surge in orders and tight delivery deadlines, the entire team of the   Special Bearings Division   has risen to the challenge. For over two months, employees across all levels have shown unwavering commitment and resilience. Driven by a strong sense of urgency and a spirit of perseverance, they have worked tirelessly on the front lines, ensuring on-time and high-quality delivery of key orders — turning promises into action and responsibility into results. Inside the production workshop, the lights never dim and the machines never rest. Under the unified coordination of the leadership team, each production line has operated at full capacity, maintaining seamless cooperation. Technical experts have taken the lead in optimizing processes and improving tooling to overcome critical production bottlenecks. Frontline operators have remained at their posts around the clock, racing against time to meet schedules and secure deliveries. The quality c...

Cylindrical roller bearings are widely used in industrial applications due to their high radial load capacity and low friction performance. However, to ensure optimal functionality and longevity, proper installation is essential. In this article, we'll walk you through the installation process, highlight common mistakes to avoid, and share expert tips for achieving the best results. Why Proper Installation Matters Improper installation of cylindrical roller bearings can lead to premature failure, increased vibration, and operational inefficiency. Preparation Before Installation Cleanliness is critical: Ensure that the housing, shaft, and bearing itself are free from dirt, dust, or any contamination. Check shaft and housing tolerances: Verify that the dimensions conform to the recommended fits for cylindrical roller bearings. Use personal protective equipment (PPE): Gloves and eye protection should be worn to ensure safety. Installation Methods There are two primary installation me...