Update date: Aug 30, 2026 | 266 Pages | Report ID: M-AM-014218
Self-Lubricating Bronze Bearing Material Market
DMA IntelligenceSelf-Lubricating Bronze Bearing Material Industry Analysis & Growth Forecast 2033
Segments: Product Type (Powder Metallurgy Bronze Bearings, Cast Bronze Bearings, Sintered Bronze Bearings, Others), Application (Automotive, Industrial Machinery, Aerospace, Construction, Marine, Others), End-User (OEMs, Aftermarket, Others), By Region, And Segment Forecasts
$1650.0M
Market Size, 2025
$1737.4M
Market Estimate, 2026
$2494.1M
Market Forecast, 2033
5.3%
CAGR, 2026–2033
Market Definiton and Strategic Context
The Self-Lubricating Bronze Bearing Material Market refers to the global industry engaged in the production, distribution, and application of bronze bearings engineered with inherent lubricating properties, eliminating the need for external lubrication during operation. These advanced materials typically incorporate solid lubricants like graphite, PTFE, or oil within a bronze matrix, offering superior wear resistance, reduced friction, and extended service life, particularly in harsh operating conditions or maintenance-free applications. The market encompasses a wide array of bearing types, including bushings, thrust washers, and flanged bearings, designed to cater to diverse industrial needs. Key applications span across sectors such as automotive, industrial machinery, aerospace, marine, and construction equipment, where reliability, efficiency, and minimal downtime are paramount. The inherent advantages of self-lubricating bronze bearings, such as their ability to withstand high loads, extreme temperatures, and corrosive environments, position them as critical components in modern mechanical systems. The market's growth is driven by increasing demand for high-performance, durable, and maintenance-free mechanical solutions across various industries. As of 2025, the global Self-Lubricating Bronze Bearing Material market size was estimated to be USD 1650 Million. The market is poised for significant expansion, with a robust growth outlook fueled by continuous technological advancements in material science, stringent operational requirements, and the rising adoption of automation in manufacturing processes. This comprehensive report provides a detailed market forecast, analyzing industry expansion, key trends, and competitive dynamics shaping the future trajectory of this vital sector. The demand for these materials is directly linked to industrial output and the integration of automated systems requiring reliable, low-maintenance components. The market continues to evolve with innovations in composite materials and manufacturing techniques, enhancing the performance characteristics and applicability of self-lubricating bronze bearings in new and emerging sectors. The ongoing emphasis on reducing operational costs and improving equipment longevity further underpins the sustained growth of this specialized bearing material market.
| Report Attribute | Details |
|---|---|
| Market size value in 2025 | USD 1,650.00 Million |
| Revenue forecast in 2033 | USD 2,494.08 Million |
| Growth rate | CAGR of 5.3% from 2025 to 2033 |
| Actual data | 2021 - 2024 |
| Forecast period | 2025 - 2033 |
| Quantitative units | Revenue in USD Million and CAGR from 2025 to 2033 |
| Report coverage | Revenue forecast, company share, competitive landscape, growth factors, and trends |
| Segments covered | Product Type, Application, End-User |
| Regional scope | North America; Europe; APAC; Latin America; MEA |
| Country scope | All; All; All; All; All |
| Key companies profiled | Morgan Advanced Materials; GGB Bearing Technology; Oiles Corporation; Saint-Gobain; SKF Group; Daido Metal Co., Ltd.; CSB Sliding Bearings; Zhejiang SF Oilless Bearing Co., Ltd.; Beemer Precision Inc.; National Bronze Mfg. Co.; CCTY Bearing; RBC Bearings Incorporated; Metalloy Industries; Sankyo Oilless Industry, Inc.; Kaman Industrial Technologies; TriStar Plastics Corp.; Technymon GBT; Bimetal Bearings Limited; Dezhou Jingda Bearing Co., Ltd.; Jiashan PVB Sliding Bearing Co., Ltd. |
| Customization scope | Free report customization (equivalent to 8 analysts working days) with purchase. Addition or alteration to country, regional & segment scope. |
| Pricing and purchase options | Avail customized purchase options to meet your exact research needs. Explore purchase options |
Growth Catalysts & Market Constraints
The Self-Lubricating Bronze Bearing Material market is characterized by a dynamic interplay of factors influencing its growth trajectory and overall market size. A robust growth forecast is underpinned by increasing industrial automation and the demand for low-maintenance, high-performance components across various end-use sectors. However, the market also faces considerable restraints, including raw material price volatility and the emergence of alternative bearing technologies. Understanding these market dynamics is crucial for stakeholders to navigate the evolving landscape effectively. The continuous drive for enhanced operational efficiency and extended equipment lifespan, particularly in demanding environments, is a significant tailwind for the Self-Lubricating Bronze Bearing Material market. Conversely, the high initial cost associated with specialized bronze alloys and manufacturing processes can pose a challenge, especially for price-sensitive applications. The industry's expansion is further shaped by technological innovations aimed at improving bearing performance and durability, alongside the constant need to comply with evolving environmental and safety regulations. These factors collectively define the current and future Self-Lubricating Bronze Bearing Material market trends.
Growth Drivers
- Growing demand for maintenance-free and high-performance components: Industries such as automotive, aerospace, and industrial machinery are increasingly seeking bearing solutions that offer extended service life and minimal maintenance requirements. Self-lubricating bronze bearings, with their inherent lubrication properties, effectively address this need, contributing to reduced operational costs and improved equipment reliability, thereby driving their adoption across a broader range of applications.
- Technological advancements in material science and manufacturing processes: Ongoing research and development efforts are leading to the creation of innovative self-lubricating bronze composites with enhanced wear resistance, load-bearing capacity, and temperature tolerance. These advancements enable the application of these bearings in more demanding and critical environments, expanding their market potential and reinforcing their value proposition for advanced industrial designs.
Restraints
- Volatility in raw material prices: The primary raw materials for self-lubricating bronze bearings, such as copper, tin, and specialized lubricants, are subject to significant price fluctuations in global commodity markets. This volatility directly impacts production costs, leading to unpredictable pricing for end-products and potentially squeezing profit margins for manufacturers, thereby hindering consistent investment and market expansion.
- Competition from alternative bearing technologies: The market faces stiff competition from other advanced bearing materials and designs, including polymer bearings, ceramic bearings, and traditional lubricated bearings with advanced sealing solutions. These alternatives may offer specific advantages in certain applications, such as weight reduction or lower cost, posing a challenge to the market share of self-lubricating bronze bearings.
Opportunities
- Expansion into emerging industrial sectors and geographical markets: Developing economies are experiencing rapid industrialization and infrastructure development, creating new avenues for self-lubricating bronze bearings in sectors like renewable energy, robotics, and smart manufacturing. Strategic market entry and localized production in these regions can unlock significant growth potential and diversify revenue streams for market players.
- Development of specialized bearings for extreme operating conditions: There is an increasing need for bearings that can perform reliably in extreme temperatures, corrosive environments, or vacuum conditions. Innovations in material composition and impregnation techniques for self-lubricating bronze can lead to highly specialized products, catering to niche, high-value applications in aerospace, defense, and oil & gas industries.
Challenges
- High initial manufacturing cost and design complexity: The production of self-lubricating bronze bearings often involves intricate manufacturing processes and specialized equipment, leading to higher initial costs compared to conventional bearings. This can be a barrier to adoption, particularly for small and medium-sized enterprises, requiring manufacturers to demonstrate clear long-term cost benefits through superior performance and longevity.
- Ensuring consistent performance and quality control: Maintaining uniform distribution of solid lubricants within the bronze matrix and ensuring consistent mechanical properties across batches is a significant technical challenge. Any variations can compromise bearing performance and reliability, leading to premature failure and impacting brand reputation, necessitating rigorous quality assurance protocols and advanced testing methods.
Market Level Breakdown
The Self-Lubricating Bronze Bearing Material market segmentation by Product Type includes Graphite-Impregnated Bronze, Oil-Impregnated Bronze, PTFE-Impregnated Bronze, and Others. Graphite-Impregnated Bronze bearings lead this segment, primarily due to their excellent performance in high-temperature and heavy-load applications, often found in industrial ovens and steel mills. Oil-Impregnated Bronze bearings, known for their porous structure allowing for continuous oil supply, are widely used in general machinery where consistent lubrication is crucial. PTFE-Impregnated Bronze bearings offer superior friction reduction and chemical resistance, making them ideal for applications requiring low friction and non-contaminating properties, such as in the food processing or medical equipment sectors. The 'Others' category encompasses various specialized composites and advanced formulations designed for unique operational demands.
Segmentation by Application highlights the diverse end-use industries driving the Self-Lubricating Bronze Bearing Material market. The Automotive sector represents a significant portion, utilizing these bearings in engines, transmissions, and suspension systems for enhanced durability and reduced maintenance. Industrial Machinery, including pumps, motors, and textile equipment, also extensively employs these bearings for their reliability in continuous operation. The Aerospace industry demands high-performance, lightweight, and maintenance-free bearings for critical aircraft components, while the Marine sector relies on their corrosion resistance in harsh aquatic environments. Construction Equipment uses these bearings in heavy-duty applications, where shock loads and abrasive conditions are common, ensuring longevity and operational efficiency. The 'Others' segment covers niche applications in renewable energy, robotics, and specialized consumer goods.
In terms of End-User, the Self-Lubricating Bronze Bearing Material market is bifurcated into OEM (Original Equipment Manufacturer) and Aftermarket. The OEM segment accounts for the larger share, as these bearings are integrated into new machinery and equipment during the manufacturing process, driven by design specifications for performance and longevity. The Aftermarket segment involves the replacement of worn-out bearings in existing machinery, driven by maintenance schedules, equipment failure, and the need for upgrades to improve operational efficiency. Both segments contribute significantly to the overall market growth, reflecting the continuous demand for these specialized bearing materials across the entire equipment lifecycle and contributing to the overall market taxonomy.
Self-Lubricating Bronze Bearing Material Segmentation Breakdown
- Product Type
- Powder Metallurgy Bronze Bearings
- Cast Bronze Bearings
- Sintered Bronze Bearings
- Others
- Application
- Automotive
- Industrial Machinery
- Aerospace
- Construction
- Marine
- Others
- End-User
- OEMs
- Aftermarket
- Others
Geographic Performance & Regional Trends
North America currently stands as the largest market for Self-Lubricating Bronze Bearing Material, driven by its robust automotive and industrial machinery sectors, coupled with significant investments in aerospace and defense. This region's leadership is attributed to its advanced manufacturing capabilities and the early adoption of high-performance, maintenance-free components. Asia Pacific, however, is projected to be the fastest-growing market, primarily fueled by rapid industrialization, infrastructure development, and expanding manufacturing bases in countries like China and India. The escalating demand for durable and efficient machinery in these emerging economies is a key factor underpinning the Self-Lubricating Bronze Bearing Material market growth in the region, alongside favorable government policies promoting local manufacturing and technological upgrades.
Regional Growth Drivers
- North America: The strong presence of the automotive and aerospace industries, coupled with stringent performance standards and a focus on reducing maintenance costs, drives the demand for self-lubricating bronze bearings. Significant investments in R&D and advanced manufacturing technologies in countries like the United States and Canada ensure a high adoption rate of innovative bearing solutions.
- Europe: A mature industrial base, particularly in Germany, the United Kingdom, and France, with a strong emphasis on precision engineering and sustainable manufacturing, fuels the market. The region's focus on automation and the upgrade of existing industrial infrastructure contributes to consistent demand for high-quality, durable bearing materials.
- Asia Pacific: Rapid industrialization, urbanization, and increasing foreign direct investment in manufacturing sectors across China, India, and Japan are key growth drivers. The burgeoning automotive and construction industries, along with expanding general manufacturing, are creating immense demand for reliable and cost-effective bearing solutions.
- Latin America: Modernization of industrial infrastructure, growth in the automotive sector, and increasing investments in mining and agriculture in countries like Brazil and Mexico are propelling the market. The region's need for robust and long-lasting components in challenging operational environments contributes to the adoption of these specialized bearings.
- Middle East & Africa: Diversification efforts away from oil-dependent economies, leading to investments in manufacturing, construction, and infrastructure projects, are driving market growth. The need for durable components in harsh climatic conditions, particularly in Saudi Arabia and South Africa, is a significant factor in the regional forecast.
Looking ahead, mature markets in North America and Europe are expected to exhibit steady, innovation-driven growth, focusing on specialized and high-performance applications. These regions will continue to prioritize technological advancements and premium product offerings. In contrast, emerging markets in Asia Pacific and Latin America will experience more aggressive expansion, driven by industrial capacity building and increasing adoption across a broader range of applications. This divergence presents strategic implications for suppliers, necessitating tailored market entry strategies, localized production capabilities, and differentiated product portfolios to capitalize on varying regional maturity levels and growth paces. The Self-Lubricating Bronze Bearing Material market will see continued investment in these high-growth areas.
Competitive Insights & Leading Companies
The Self-Lubricating Bronze Bearing Material competitive landscape is characterized by a moderately consolidated structure, with a mix of established global players and specialized regional manufacturers. Key companies differentiate themselves through various competitive levers, including product innovation, manufacturing efficiency, global distribution networks, and strong customer relationships. The market sees significant activity from large bearing manufacturers who offer a wide portfolio of products, alongside niche players focusing on specific applications or material compositions. Competitive intensity is heightened by the continuous demand for higher performance and longer-lasting bearing solutions, pushing companies to invest heavily in research and development. Pricing strategies often vary, with premium pricing for highly specialized or custom-engineered solutions, and more competitive pricing for standard products. The ability to secure raw material supplies and manage supply chain complexities also plays a crucial role in maintaining a competitive edge. Moreover, compliance with international quality standards and obtaining necessary certifications are paramount for market access and credibility, influencing market share and overall industry dynamics. The global nature of key end-use industries, such as automotive and industrial machinery, necessitates a global presence or robust export capabilities for leading players.
Leading companies in the Self-Lubricating Bronze Bearing Material market actively pursue diverse strategies to strengthen their market position and expand their reach. Mergers and acquisitions are common, allowing companies to acquire new technologies, expand their product portfolios, or gain market access in new geographies. Strategic partnerships and collaborations with end-users or research institutions are vital for co-developing customized solutions and driving innovation. Product launches featuring enhanced material properties or novel designs are continuous, aiming to meet evolving industry demands for improved efficiency and reliability. Differentiation often stems from technological superiority, offering bearings with higher load capacities, extended temperature ranges, or superior corrosion resistance. Some players focus on a service model, providing comprehensive technical support and custom engineering services, while others leverage robust distribution channels to ensure widespread availability. Localization of manufacturing and sales operations is also a key strategy to cater to regional market specifics and reduce lead times. However, the industry faces challenges such as margin pressure due to intense competition and the need for continuous investment in R&D to stay ahead of technological obsolescence. Ensuring supply chain resilience and mitigating risks associated with raw material sourcing are ongoing strategic priorities for all participants in the Self-Lubricating Bronze Bearing Material key players ecosystem.
Self-Lubricating Bronze Bearing Material Key Companies
- Morgan Advanced Materials
- GGB Bearing Technology
- Oiles Corporation
- Saint-Gobain
- SKF Group
- Daido Metal Co., Ltd.
- CSB Sliding Bearings
- Zhejiang SF Oilless Bearing Co., Ltd.
- Beemer Precision Inc.
- National Bronze Mfg. Co.
- CCTY Bearing
- RBC Bearings Incorporated
- Metalloy Industries
- Sankyo Oilless Industry, Inc.
- Kaman Industrial Technologies
- TriStar Plastics Corp.
- Technymon GBT
- Bimetal Bearings Limited
- Dezhou Jingda Bearing Co., Ltd.
- Jiashan PVB Sliding Bearing Co., Ltd.
Self-Lubricating Bronze Bearing Material Market Ecosystem
Ecosystem Participants
- Raw Material Suppliers — Provide essential metals like copper, tin, and zinc, along with solid lubricants such as graphite, PTFE, and specialized oils. These suppliers are critical for the quality and cost-effectiveness of the final bearing material, influencing the entire value chain through material purity and availability. Their role extends to ensuring sustainable sourcing practices and maintaining stable supply chains to meet manufacturing demands.
- Bronze Alloy Manufacturers — Specialize in creating various bronze alloys that form the matrix for self-lubricating bearings. They focus on precise metallurgical compositions to achieve desired mechanical properties, such as strength, hardness, and corrosion resistance, which are foundational for bearing performance. Their expertise is crucial in developing customized alloy formulations for specific application requirements.
- Bearing Material Processors — Transform raw alloys and lubricants into semi-finished or finished self-lubricating bronze bearing materials through processes like powder metallurgy, casting, and impregnation. These companies employ advanced techniques to ensure uniform distribution of lubricants within the bronze matrix, which is vital for the bearing's self-lubricating properties. Quality control at this stage directly impacts the durability and reliability of the final product.
- Component Manufacturers — Fabricate the bearing materials into specific forms such as bushings, thrust washers, and flanged bearings according to design specifications. They utilize precision machining, pressing, and sintering technologies to create components that meet tight dimensional tolerances and surface finish requirements. Their role is pivotal in translating material properties into functional bearing geometries for diverse applications.
- Original Equipment Manufacturers (OEMs) — Integrate self-lubricating bronze bearings into their final products, including automotive vehicles, industrial machinery, aerospace components, and construction equipment. OEMs are key demand drivers, as they specify bearing requirements based on performance, cost, and lifespan expectations. Their design choices significantly influence the adoption rates and market trends for these specialized bearings.
- Distributors and Suppliers — Act as intermediaries, connecting bearing manufacturers with a wide range of end-users and aftermarket clients. They manage inventory, logistics, and provide technical support, ensuring timely availability of bearings across various industrial sectors. Their extensive networks are crucial for market penetration and efficient delivery of products to diverse geographical locations.
- Aftermarket Service Providers — Offer replacement bearings and maintenance services for existing machinery and equipment. This segment addresses wear and tear, providing essential components to ensure the continued operation and longevity of industrial assets. Their role is crucial in extending the lifecycle of equipment and supporting operational continuity across various industries.
- Research & Development Institutions — Academic bodies and private research firms that focus on advancing material science for self-lubricating composites, developing new impregnation techniques, and exploring novel applications. They contribute significantly to innovation, pushing the boundaries of bearing performance and driving future market growth. Their findings often lead to new product development and improved manufacturing processes.
- Testing and Certification Bodies — Organizations that provide independent testing and certification services to ensure bearings meet industry standards, performance specifications, and regulatory requirements. Their role is critical for validating product quality, ensuring safety, and building confidence among end-users. Compliance with these standards is essential for market acceptance and global trade.
Report Coverage & Key Deliverables
The report delivers a comprehensive analysis of the Self-Lubricating Bronze Bearing Material, combining quantitative data with qualitative insights. This study is meticulously crafted to provide stakeholders with an in-depth understanding of market dynamics, competitive landscapes, and future growth opportunities. It serves as an indispensable resource for strategic planning, investment decisions, and market entry strategies, offering a holistic view of the industry's past, present, and projected future. The report's robust methodology ensures accuracy and reliability, presenting actionable intelligence derived from extensive primary and secondary research. It covers critical aspects such as market size estimations, growth rate forecasts, detailed segmentation analysis across various parameters, and regional market performance. Decision-makers can leverage this report to identify emerging trends, assess competitive threats, and pinpoint lucrative segments for expansion. The inclusion of competitive benchmarking further aids in understanding the strategic positioning of key players, their product offerings, and their market influence, empowering businesses to develop effective strategies. This comprehensive coverage ensures that the report is a vital tool for anyone looking to navigate or invest in the Self-Lubricating Bronze Bearing Material market with clarity and confidence.
Report Coverage
- Market Size Estimates (historical and forecast)
- This section provides precise revenue figures and volume data for the global market, meticulously covering the historical period from 2021 to 2025 and projecting the market's trajectory up to 2033. Our methodology integrates top-down and bottom-up approaches, triangulating data from industry associations, company reports, and expert interviews to ensure robust and accurate estimations.
- Detailed Segmentation And Revenue Analysis
- The report breaks down the market into granular segments based on product type, application, and end-user, offering a comprehensive revenue analysis for each sub-segment. This detailed segmentation allows stakeholders to identify high-growth areas and understand the specific market drivers and challenges within each category, facilitating targeted investment and product development strategies.
- Regional And Country-Level Insights
- An exhaustive analysis is provided for key regions including North America, Europe, Asia Pacific, Latin America, and Middle East & Africa, along with detailed country-level breakdowns. This section evaluates market maturity, growth potential, regulatory landscapes, and consumer behavior across different geographies, offering a nuanced perspective on regional opportunities and competitive dynamics.
- Competitive Benchmarking Of Key Players
- This segment offers a strategic overview of the competitive landscape, profiling leading market participants, their product portfolios, key strategies, and market shares. It includes an assessment of their strengths, weaknesses, opportunities, and threats, enabling businesses to benchmark their performance and identify strategic advantages for sustainable growth.
- Customization Options Based on Specific Requirements
- We offer flexible customization services to meet unique client needs, including deeper dives into specific product types or applications, detailed country-level analysis not covered in the standard report, or expanded competitive intelligence. Our goal is to provide tailored insights that directly address individual business objectives and strategic imperatives, ensuring maximum value from the research.
Recent Industry Insights
The Self-Lubricating Bronze Bearing Material industry has witnessed several notable developments over the past 12-18 months, reflecting a dynamic landscape driven by innovation and strategic expansion. Key players have focused on enhancing product performance, forging strategic partnerships, and expanding their manufacturing footprints to cater to growing demand. A significant trend involves the development of advanced composite materials that offer superior wear resistance and extended service life, particularly for demanding applications in aerospace and heavy industrial machinery. Furthermore, increased investment in automation technologies within manufacturing processes has spurred demand for bearings capable of operating reliably in maintenance-free environments. The Self-Lubricating Bronze Bearing Material industry trends also indicate a rising focus on sustainable manufacturing practices and the development of eco-friendly bearing solutions, aligning with global environmental regulations and corporate social responsibility initiatives. These developments underscore a continuous push towards efficiency, durability, and environmental stewardship across the market.
Key Market Developments
- October 2024: GGB Bearing Technology launched a new range of lead-free, self-lubricating bearings designed for enhanced environmental compliance and superior performance in hydraulic applications.
- August 2024: Oiles Corporation announced a strategic partnership with a leading automotive OEM to co-develop next-generation self-lubricating bearings for electric vehicle platforms, focusing on noise reduction and weight optimization.
- June 2024: Morgan Advanced Materials expanded its production capacity for specialized graphite-impregnated bronze bearings in Europe to meet increasing demand from the industrial machinery sector.
- April 2024: SKF Group introduced a new online tool for customers to select and customize self-lubricating bronze bearing solutions, improving accessibility and technical support for diverse applications.
- January 2024: Daido Metal Co., Ltd. invested in advanced additive manufacturing technologies to produce complex geometries of self-lubricating bronze components more efficiently and with greater precision.
- November 2023: Saint-Gobain acquired a specialized materials company to bolster its portfolio of high-performance self-lubricating composites, targeting aerospace and defense markets.
Analyst Opinion
The Self-Lubricating Bronze Bearing Material market outlook remains highly positive, driven by an accelerating shift towards maintenance-free and high-performance mechanical systems across global industries. Market attractiveness is bolstered by the inherent advantages of these bearings, including superior wear resistance, reduced friction, and extended operational lifespans, which translate into significant cost savings and improved reliability for end-users. The competitive intensity, while moderately consolidated, encourages continuous innovation as players strive to differentiate through material science advancements and application-specific solutions. Demand-supply balance is currently stable, though regional disparities exist, with robust demand from rapidly industrializing economies in Asia Pacific contrasting with mature but innovation-driven markets in North America and Europe. Key drivers such as increasing automation, the electrification of vehicles, and the need for durable components in harsh environments are expected to sustain this positive trajectory. However, supply chain vulnerabilities for critical raw materials like copper and tin, coupled with geopolitical tensions, pose potential risks that stakeholders must carefully monitor to maintain operational continuity and cost efficiency.
Looking at the long-term outlook, the Self-Lubricating Bronze Bearing Material market is poised for sustained growth, underpinned by ongoing technological evolution and expanding application frontiers. The innovation landscape will likely focus on developing advanced composite materials, exploring new impregnation techniques, and integrating smart sensing capabilities into bearings for predictive maintenance. This will enable bearings to adapt to even more extreme operating conditions and provide real-time performance data. Key risk factors include the emergence of disruptive alternative materials, the escalating costs of specialized alloys, and the potential for regulatory changes impacting material composition or manufacturing processes. Strategically, companies should prioritize vertical integration to secure raw material supplies, invest heavily in R&D to maintain a technological edge, and expand their geographical footprint, particularly in high-growth emerging markets. Partnerships with OEMs and research institutions will be crucial for co-developing customized solutions and accelerating market adoption, ultimately shaping the future competitive dynamics and ensuring the long-term viability and profitability of the Self-Lubricating Bronze Bearing Material market.