ZXY Bearing Obtains Motor Shaft Patent to Enhance Pipeline Centrifugal Pump Service Life and Repair Efficiency
According to publicly available information from the China National Intellectual Property Administration (CNIPA), Xiangyang Automobile Bearing Co.,Ltd. (hereinafter referred to as "Xiangyang Bearing") obtained a utility model patent titled "Motor Shaft for Pipeline Centrifugal Pump" on May 1, 2026, with Patent Grant Publication No. CN224187789U. The patent aims to address the susceptibility of pipeline centrifugal pump motor shafts to corrosion and the associated problem of mechanical seal failure, thereby improving equipment service life and repair efficiency through technological innovation.
As stated in the patent abstract, this utility model belongs to the field of mechanical manufacturing technology. Its core innovation lies in the addition of a heat-resistant stainless steel welded layer on the outer diameter of the motor shaft section designated for mechanical seal installation. This design effectively enhances the corrosion resistance of the shaft section. It is applicable not only to the production of newly manufactured motor shafts but also to the repair of used shafts whose mechanical seals have failed due to corrosion, thereby extending the overall service life of the pipeline centrifugal pump. The patent was developed by Xiangyang Bearing's technology team, with inventors Shang Songfeng, Fan Qigang, and Yang Tianli, and the application date was May 20, 2025.
Founded in 1993 and headquartered in Xiangyang, Hubei Province, Xiangyang Bearing was listed on the Shenzhen Stock Exchange (SZSE) in 1997. The company is a key bearing manufacturer in China, with its main business covering the R&D, manufacturing and sales of bearings and components, automotive parts, and electromechanical equipment. In 2025, the company achieved an operating revenue of RMB 1.539 billion, of which bearing business revenue accounted for 69.52%, representing the primary revenue source. However, the company reported a net profit of -RMB 69.9639 million for 2025, remaining in a loss position due to industry competition and cost pressures.
The acquisition of this patent reflects Xiangyang Bearing's sustained R&D investment and innovation capability in specific niche technology fields. By focusing on optimizing core components for industrial equipment such as pipeline centrifugal pumps, the company is gradually expanding its technological boundaries and enhancing product added value. Looking ahead, as the technical achievement undergoes commercialization and market promotion, this patent is expected to create new growth drivers for the company and facilitate its breakthrough in the high-end manufacturing sector.
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