On September 26, 2023, the international standard ISO 24652 "Spherical plain bearings - Spherical plain bearings rod ends for hydraulic fluid power cylinders" in the field of rolling bearings, developed under the leadership of China, was officially released. This marks the first time that China has taken the lead in formulating an international standardization document in the field of rolling bearings, ISO/TR 20051:2010 "Derivation of Rated Load Coefficient of Spherical plain bearings", and has also taken the lead in formulating a formal international standard in the field of rolling bearings, thus achieving another breakthrough in China's international standardization work in rolling bearings.

ISO 24652 was led by Luoyang Bearing Research Institute Co., Ltd., and jointly drafted by Fujian Longxi Bearing (Group) Co., Ltd., Taizhou Kejin Bearing Co., Ltd., and Shanghai Bearing Technology Research Institute. This international standard is based on the industry standard JB/T 13611-2019 "Spherical plain bearings - Spherical plain bearings rod ends for hydraulic fluid power cylinders" in China. It was established in November 2019 and has undergone 12 international and 7 domestic working group meetings, lasting for nearly 4 years. Finally, it has been successfully released.

Spherical plain bearings rod ends for hydraulic fluid power cylinders are mainly used on the piston rod of hydraulic cylinders, transmitting large institutional loads by connecting the cylinder body and accessories. This type of Spherical plain bearings is widely used in hydraulic cylinders on various construction equipment, agricultural machinery, lifting equipment, and heavy-duty control equipment. ISO 24652 specifies the structural types, dimensions, tolerances, and technical requirements of Spherical plain bearings rod ends for hydraulic fluid power cylinders, which helps to unify the delivery of Spherical plain bearings rod ends for hydraulic fluid power cylinders by manufacturers from various countries and ensure that users use standardized connectors.

As a domestic technology counterpart of the International Organization for Standardization Rolling Bearing Technical Committee (ISO/TC4), ZYS will further consolidate industry strength and promote more Chinese technical solutions to the international standardization stage!