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Midea Group's New Patent Reduces Risk of Bearing Damage in External Rotor Motors

Source: JRJ.com According to information from the National Intellectual Property Administration, Guangdong Midea Cooling Equipment Co., Ltd., and Midea Group Co., Ltd. have been granted an important patent titled "External Rotor Motor, Fan Component, and Air Conditioner" (Publication No. CN 222531435 U). The patent application was filed in February 2024. This innovative design involves a novel external rotor motor structure, including a stator assembly, a rotor assembly, and support components. The stator assembly consists of a stator with a central hole; the rotor assembly comprises a rotor rotating around the exterior of the stator and a shaft passing through the central hole and engaging with it. The rotor is divided into a ring section and an end cover section, with the former encircling the stator and the latter located on one side of the stator and connected to the shaft. Support components are arranged between the end cover and the stator, which can be either a first support fixed to the end cover or a second support mounted on the stator. This unique arrangement helps precisely control the gap between the rotor and the stator, effectively reducing the risk of bearing damage. The newly introduced external rotor motor design by Midea not only demonstrates its strong capabilities in the field of technology research and development but also provides new solutions for enhancing the reliability and performance of air conditioners and other related products. By optimizing the internal structure of the motor, this design significantly reduces failures caused by bearing issues, improving the overall system stability and durability.

2025

03/06

Innovative Technology Integration: NSK's New Bearing Reduces Raceway Wear

Source: NSK Nippon Seiko Kabushiki Kaisha (NSK) has launched a revolutionary "High Reliability Spherical Roller Bearing for Wind Turbine Main Shafts," integrating three advanced technologies: "Super-TF" material, DLC coating, and a new high-load capacity cage (ECA type). This is the first time NSK has combined all three in one product. Typically, spherical roller bearings in wind turbine main shafts fail due to raceway wear. NSK’s new bearing reduces this wear to less than one-tenth of standard products, significantly extending lifespan and reducing maintenance needs and downtime. This enhances the operational stability of wind power equipment. The first two technologies have already received positive market feedback. In June 2024, NSK introduced the third technology and secured an order from a North American wind power company. NSK now has a comprehensive sales system supporting these integrated products. Looking forward, NSK plans to combine this new bearing with condition monitoring solutions to offer more efficient technical services. According to NSK’s "MTP 2026 Mid-term Management Plan," the company aims to increase its aftermarket business sales by 25 billion yen compared to 2021 levels. Key features: Super-TF Material: Enhances surface hardness through fine carbide distribution. DLC Coating: Improves roller surface abrasion resistance. ECA-Type Cage: Optimizes internal structure, increasing roller size and quantity for better load capacity and wear resistance. These enhancements boost durability and reliability, especially under harsh conditions, and help prevent early damage. For wind turbines located in remote or offshore areas, where component replacement is costly and time-consuming, this product significantly reduces maintenance costs and extends equipment uptime.

2025

03/05

Schaeffler Invests 1.5 Billion Yuan in Wuhu: Strengthening Partnership with a Top 500 Company

Source: Da Jiang News On February 27th, Ningbo Xu, the Party Secretary of Wuhu City, and Mayor Zhi Xu held a working meeting with Klaus Rosenfeld, CEO of Germany's Schaeffler Group, to witness the signing ceremony of the "Schaeffler Intelligent Drive Powertrain and Electric Drive Product Leap Project" in Wuhu Economic Development Zone. Other attendees included Tongyue Yin, Party Secretary and Chairman of Chery Holding Group Co., Ltd.; Christophe Hannequin, CFO of Schaeffler Group; Yulin Zhang, CEO of Schaeffer China; Xiufang Wei, leader from Wuhu City; and Ting Wang, Vice President of Chery Automobile Co., Ltd. Ningbo Xu expressed that Anhui's automotive industry is currently experiencing robust growth. As a deputy central city within Anhui Province, Wuhu focuses on expanding its new energy and intelligent connected vehicle sector, fully supporting Chery's international market expansion, and accelerating the construction of an integrated auto industry ecosystem covering vehicles, components, and after-sales markets. Schaeffler, being a globally leading supplier in automotive and industrial sectors with profound technological accumulation, is expected to deepen the trilateral cooperation among Wuhu, Chery, and Schaeffler, promoting more collaborative achievements. Klaus Rosenfeld stated that Wuhu is a very charming city and an important manufacturing hub, showing promising development trends in recent years. It plays a significant role in Schaeffler’s industrial layout. He hoped to strengthen exchanges and cooperation, forming long-term partnerships with Wuhu and Chery to jointly explore international markets, achieving mutual benefits and win-win development.

2025

02/28

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