Spherical Roller Bearings: Driven by Renewable Energy and Electrification, Global Market Enters Steady Growth Phase

As a critical component supporting heavy industrial transmission, spherical roller bearings (SRBs) are witnessing robust market expansion driven by the global push for renewable energy transition and the rapid development of electric mobility. Latest industry reports and enterprise innovations indicate that the sector is evolving toward higher reliability, sustainability, and intelligence, with Asia-Pacific emerging as the core growth engine.

Market data shows the global spherical roller bearings market has maintained steady growth momentum. It grew from $5.32 billion in 2024 to $5.57 billion in 2025 at a compound annual growth rate (CAGR) of 4.7% . Looking ahead, the market is projected to reach $6.63 billion by 2029 with a CAGR of 4.4%, fueled by soaring demand from wind power, electric commercial vehicles, and construction machinery sectors . China, in particular, has become a key driver of global demand. Its domestic SRB market exceeded 12 billion yuan in 2025 and is expected to grow at a 6.8% CAGR between 2026 and 2030, reaching approximately 16.5 billion yuan by 2030 . Currently, the Asia-Pacific region accounts for over 35% of global SRB demand, a share that continues to rise .

The wind energy sector stands out as a major growth driver for high-performance spherical roller bearings. With wind turbines increasingly deployed in harsh environments such as offshore and mountainous areas, the reliability requirements for main shaft bearings have become extremely stringent. In response, NSK Ltd. launched a new line of high-reliability SRBs for wind turbine main shafts in December 2024 . By combining Super-TF long-life material, high-hardness diamond-like DLC coating, and a new extra-capacity ECA cage, the new bearings reduce raceway wear to less than one-tenth of standard products, significantly enhancing durability and reducing maintenance downtime . This innovation addresses the industry's pain point of high repair costs and long downtime associated with bearing failures in wind turbines.

Electrification of commercial transportation is another key growth catalyst. As environmental regulations tighten and e-commerce expands, demand for electric trucks and buses is surging globally. Spherical roller bearings play a crucial role in these vehicles by providing high load-carrying capacity and low friction, improving operational efficiency and reliability . Data from the U.S. Energy Information Administration (EIA) shows that sales of hybrid, plug-in hybrid, and battery electric vehicles accounted for 16.3% of the U.S. light-duty vehicle market in 2023, up from 12.9% in 2022 , reflecting the accelerating trend of transportation electrification that will continue to boost SRB demand.

Sustainability has become a key focus in the SRB industry. SKF recently collaborated with Voestalpine Wire Technology to develop the first prototype spherical roller bearing using steel made from hydrogen direct reduced iron (H-DRI) . This low-emission steel production method marks a significant breakthrough in the industry's decarbonization efforts. Annika Ölme, SKF's CTO, emphasized that sustainable materials are not only driven by customer demand but also represent a major business opportunity, especially as electrification brings new technical challenges such as higher speeds and more complex lubrication requirements .

In terms of market competition, the global SRB sector features a dual structure with leading international players and emerging domestic manufacturers in China. International giants such as SKF, NSK, and TIMKEN maintain a strong presence in high-end segments, particularly in wind power and large mining equipment applications, thanks to their advanced technology and brand advantages . Meanwhile, Chinese leading enterprises including Wafangdian Bearing Group, Luoyang LYC Bearing, and Renben Group hold nearly 45% of the domestic mid-to-high-end market share . Supported by national policies such as the "Strong Foundation Project" and "14th Five-Year Plan for Intelligent Manufacturing," domestic manufacturers are making significant strides in advanced processes such as high-purity special steel production and bainitic isothermal quenching, gradually increasing the localization rate of high-end SRBs, which has exceeded 40% in key areas like wind turbine main shafts .

Industry experts note that the spherical roller bearing sector is entering a critical phase of structural optimization and technological upgrading. Future development will focus on three key areas: advancing domestic replacement of high-end products, promoting green manufacturing practices, and developing intelligent bearings integrated with condition monitoring systems. Strengthening industry-university-research collaboration to break through "bottleneck" technologies across the entire chain—from materials and design to manufacturing and testing—will be crucial for enhancing the global competitiveness of domestic SRB brands .

With the deepening of global industrialization and the accelerated energy transition, spherical roller bearings, as essential components supporting heavy industry and renewable energy development, are poised to maintain their growth trajectory. Continuous technological innovations and sustainable development initiatives will drive the industry toward higher quality and more efficient development in the coming years.