September 17,2026
According to public information available in September 2026, new developments in China's rolling bearing market are primarily concentrated in high-end application areas such as robot reducer bearings, high-speed motor bearings for new energy vehicles (NEVs), and high-precision machine tool spindle bearings, with several key technological breakthroughs achieving domestic localization. The following is a breakdown by application sector:
This is the most active innovation area this month, targeting humanoid robots, six-axis industrial robots, and similar applications.
On September 15, NBR Guangyang Co. obtained a utility model patent titled "Oil-Leak-Proof Crossed Roller Bearing for Hypoid Gear Transmission Mechanisms in Six-Axis Robots." The design effectively addresses oil leakage during robot joint operation by grooving the inner ring end face and embedding inserts, combined with an oil seal structure, thereby extending the service life of six-axis robots.
At the National Bearing Industry New Technology and New Product Innovation Workshop held on September 8–9, Jiangsu Nanfang Precision introduced a self-retaining densely arranged roller bearing designed for planetary gear eccentric shafts in robot RV reducers. This structure increases the number of rollers, achieving approximately 10% higher load capacity, 40% longer service life, and over 30% lower cost. Meanwhile, optimization of the retaining ring and shaft shoulder relief groove structure reduces cage deformation and stress, providing a new solution for domestic localization of core bearings in robot reducers.
The chief engineer of C&U Group delivered a report titled "Technical Analysis of Flexible Bearings for Harmonic Reducers" at the workshop, focusing on core technologies for flexible bearings used in humanoid robot harmonic reducers. The report analyzed the special loading, deformation, and fatigue failure mechanisms of flexible bearings as well as key design considerations.
Targeting ultra-high-speed operating conditions of NEV drive motors, Tianma Precision shared research on material selection, structural optimization, and failure risk prevention for nylon cages, aiming to address cage reliability issues under high-speed operation.
In July, LYC filed a patent for a "Full-Process Cleanliness Control Method for New Energy Vehicle Bearings," covering cleanliness control throughout the entire process from manufacturing to assembly. This reflects the stringent requirements for cleanliness and reliability in NEV bearings.
ZWZ Wind Power Bearing Company recently delivered a batch of high-precision main bearings for machine tool rotary tables to key machine tool customers in Shenyang and Wuhan, achieving a breakthrough in supply capability for this field. Such bearings typically employ high-precision tapered roller or cylindrical roller structures and were previously dominated by international brands such as Japan's NSK, Germany's Schaeffler, and Sweden's SKF. This delivery marks an effective extension of ZWZ's product line from wind power bearings to high-precision machine tool bearings. However, customer validation cycles typically require two to three years, and large-scale supply still requires time.
On September 11, LYC Group and Dongsheng Bearing published an invention patent for "Magnetic Levitation Protective Bearings and Protective Bearing Sets." The bearings feature solid lubricating coatings with a thickness of 1–3 micrometers on the inner ring, outer raceway, and outer diameter surfaces, designed to enhance the service life and operational reliability of magnetic levitation protective bearings.
Shuangfei Oil-Free Bearing filed a patent for an aluminum-based bearing shell composite material designed for humid, seawater-containing, and chemical media environments. The composite material uses modified polyether ether ketone (PEEK), ultra-high molecular weight polyethylene (UHMWPE), and molybdenum disulfide as raw materials for the self-lubricating layer, making the bearing shell resistant to rust and degradation in harsh environments, extending service life and reducing maintenance costs.
On September 15, Changsheng Sliding Bearing published a patent for a "Lightweight Composite Bushing Suitable for Automotive Plain Bearings." By optimizing the coating composition (adding trace elements such as Si, Ti, Ca, and B), the coating layer essentially does not develop cracks during flanging, improving the overall service life of the bushing.
From the market dynamics of September 2026, China's rolling bearing products show several clear directions: Robot reducer bearings have become the most concentrated innovation hotspot, with multiple companies achieving breakthroughs in cage structure, load capacity, and sealing design. High-speed motor bearings for NEVs are shifting focus from basic load capacity to reliability under ultra-high-speed conditions. High-precision machine tool bearings are beginning to move from sample validation toward small-batch delivery. Meanwhile, in the plain bearing sector, new patent layouts are emerging in corrosion-resistant materials and lightweight composite structures.
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