New Patent: Innovative Bearing Structure Effectively Suppresses Outer Ring Creep, Enhancing Transmission System Durability
On February 6, 2026, according to publicly available information from the State Intellectual Property Office, China FAW Group Corporation filed an invention patent (publication number: CN121452262A) in October 2025 entitled "Bearing Assembly, Transmission System, Motor, and Vehicle," aiming to address the pain points of traditional bearings caused by outer ring creep during operation, such as accelerated wear, precision degradation, and maintenance difficulties.
The core of this patent lies in a novel bearing assembly design: a detachable annular elastic component is added to the outside of the bearing outer ring, and multiple circumferentially distributed "anti-creep units" are integrated on its outer side. These units contact the inner wall of the external annular support, effectively limiting the slight slippage or rotation of the bearing outer ring within the housing without changing the overall assembly dimensions, thereby significantly reducing the risk of early failure caused by creep friction.
This technological breakthrough is particularly important for the high reliability requirements of electric drive systems in new energy vehicles. Under complex operating conditions such as frequent start-stop cycles and high torque fluctuations, traditional interference fits or simple press-fit methods cannot completely prevent outer ring displacement. FAW's proposed elastic + anti-creep composite structure balances installation convenience with long-term operational stability, providing a new approach to improving vehicle transmission efficiency and service life.
As a leading domestic automobile manufacturer, FAW Group has continuously strengthened its independent technological innovation since its establishment in 2011. Public data shows that the company has a registered capital of 78 billion yuan, has secured over 5,000 patents, and has deeply participated in thousands of bidding projects, demonstrating strong R&D and industrialization capabilities.
The publication of this patent not only reflects its refined problem-solving capabilities in core component areas but also indicates that future models of brands such as Hongqi equipped with this technology are expected to achieve further optimization in NVH performance and powertrain durability.
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