Category Archive: Custom machining

The Past, Present, and Future of Metal Prices: Impact on the Bearing and Bushing Industry

The Past, Present, and Future of Metal Prices: Impact on Bearings and Bushings Industry

Graph showing rising metal prices with upward-trending lines, surrounded by industrial components like bearings, bushings, and metal bars.

Metals like bronze, brass, aluminum, and iron-copper alloys are the foundation of many industrial components, especially bearings and bushings. These materials provide the essential mechanical properties needed for precision components used across industries such as automotive, aerospace, heavy equipment, and energy. Fluctuations in metal prices directly influence the cost, design, and availability of bearings, which impacts companies like Bunting Bearings. This article explores the historical evolution of metal prices, analyzes current market conditions, and forecasts future trends, with a particular focus on metals crucial to the bearing and bushing industries.


A Historical Overview: Metal Prices and Bearings/Bushings

Historically, the prices of metals have experienced substantial fluctuations, largely driven by global economic cycles, industrial revolutions, and technological advancements. For instance:

  • Bronze, a key material for bushings and bearings, has been in demand since the Bronze Age due to its anti-corrosive properties and high wear resistance. However, the reliance on copper, a component of bronze, means the price of bronze has mirrored copper price trends.
  • The mid-20th century industrial boom saw prices of industrial metals surge due to increased infrastructure projects and manufacturing demands. The rise of the electrical industry created sustained demand for copper, essential for power grids and electrical motors.
  • Powdered metals emerged as an innovative manufacturing process during the 20th century, enabling efficient production of self-lubricating bearings. Companies like Bunting Bearings capitalized on this by producing SAE 841 bronze and SAE 863 iron-copper bars, optimized for low-friction, high-durability applications​

    Bronze alloy bushings and bearings of various sizes displayed on a workshop table with precision tools in the background.Centrifugal Castings


The Current State of Metal Prices: A Market in Flux

The pricing of metals such as bronze, aluminum, and copper remains highly dynamic. Several key factors shape the current metal market:

Global Supply Chain Disruptions and Inflation

  • The COVID-19 pandemic caused major disruptions in mining operations and transportation, leading to reduced metal supply.
  • Geopolitical conflicts, such as the Russia-Ukraine war, affected the supply of critical industrial metals like aluminum, causing market volatility​

Growing Demand from Green Energy Sectors

  • Copper and aluminum are in high demand for their use in electric vehicles (EVs) and renewable energy infrastructure. Bearings used in wind turbines and EV motors rely heavily on these materials.
  • Companies such as Bunting Bearings have responded by promoting eco-friendly alloys like ECO Bronze, which is lead-free and complies with environmental regulations​

    Eco-friendly bronze bushings and bearings intertwined with green leaves, with recycling symbols and renewable energy sources in the background

Market Impact on Bearings and Bushings

The bearing and bushing industries must manage price fluctuations effectively to avoid disruptions in production. Materials like SAE 841 sintered bronze and iron-copper bars (SAE 863) remain vital for products where self-lubrication and high-temperature resistance are required. Companies like Bunting Bearings offer a variety of customized alloys and powdered metal components to meet these demands​.

 


Key Metals in the Bearings and Bushings Industry

Several metals and alloys play an essential role in bearing and bushing manufacturing. Understanding the properties and market trends of these metals is crucial for companies in the industry:

Bronze Alloys

  • SAE 841 Bronze: Widely used in bearings for its excellent self-lubricating properties, this alloy is oil-impregnated, offering long-lasting performance in applications with varying temperatures.
  • ECO Bronze: This lead-free alternative to traditional bronze alloys, introduced by Bunting Bearings, is environmentally sustainable and suitable for applications that require reduced environmental impact​.

Iron-Copper Composites (SAE 863)

  • Iron-copper alloys, known for their strength and wear resistance, are employed in heavy-duty applications. These materials are ideal for machinery operating under high loads and extreme conditions.

Aluminum and Powdered Metals

  • Aluminum: While not as common as bronze, aluminum housings are used for bearing assemblies to reduce weight. Aluminum’s corrosion resistance makes it suitable for marine and aerospace applications.
  • Powdered Metals: The powdered metal process allows manufacturers to create components with complex geometries and excellent performance at reduced costs. This technology plays a crucial role in the production of sleeve bearings and other precision components​.


Future Trends in Metal Prices and Their Impact on Bearings

Several emerging trends will shape the future of metal prices, influencing the bearing and bushing industries.

Decarbonization and Sustainability Initiatives

  • Governments are tightening regulations on the use of lead and other hazardous materials, leading to increased demand for alloys like ECO Bronze.
  • Recycling and circular economy initiatives will further influence the prices and availability of metals, as manufacturers seek sustainable sourcing strategies.

Technological Innovation in Manufacturing

  • 3D printing and additive manufacturing offer new ways to produce metal components with minimal waste, potentially reducing the demand for raw materials.
  • Advances in powdered metal technologies will enable companies like Bunting Bearings to enhance the performance of their products while controlling costs.​

    Bronze cast bars and solid metal bearings, including plain and flanged designs, arranged in a workshop setting with assembly tools in the background.

Continued Market Volatility

  • Ongoing geopolitical conflicts and trade tensions could continue to disrupt metal supplies, leading to unpredictable price changes.
  • The electric vehicle boom and increasing investments in renewable energy infrastructure will maintain high demand for copper and aluminum, potentially driving prices up in the short term​.

Strategies for Navigating Metal Price Fluctuations

Companies in the bearing and bushing industries must adopt strategies to mitigate the risks associated with volatile metal prices.

  • Diversifying Supply Chains: Establishing partnerships with multiple suppliers ensures a steady supply of critical materials.
  • Adopting Sustainable Practices: Using eco-friendly alloys and promoting recycling efforts can reduce exposure to price swings.
  • Investing in R&D: Innovations in manufacturing processes, such as Lube-Align bearings, offer operational efficiencies and long-term cost savings.​

    Lube-Align self-lubricating bearing housed in an aluminum mount, highlighting precise alignment and maintenance-free performance.


The Role of Companies Like Bunting Bearings 

Companies such as Bunting Bearings play a pivotal role in providing solutions that address both performance and sustainability challenges. Their extensive range of products, including powdered metal bars and self-lubricating bushings, demonstrates the importance of material innovation in a competitive market​.

 

Similarly, our friends over at Bushings and Bars specialize in customized metal components, ensuring that clients receive the most appropriate solutions for their specific needs. Both companies highlight the importance of proactive strategies to manage metal price fluctuations, ensuring continuity and quality for their customers.


The bearing and bushing industries operate within a dynamic environment where metal prices play a crucial role. From the historical evolution of bronze and powdered metals to the current challenges posed by market volatility and supply chain disruptions, understanding these trends is essential for industry players. Companies like Bunting Bearings are well-positioned to navigate these challenges by leveraging innovation, sustainability, and strategic partnerships.

Looking ahead, the focus on green materials and advanced manufacturing technologies will continue to shape the future of the industry. By staying ahead of these trends, businesses can ensure long-term success while meeting the evolving needs of their customers.

For more detailed information on specific products and innovations, visit Bunting Bearings.

Bunting Bearings Acquires 6 Samsung CNC Turning Lathes with Live Tooling

With our recent purchase of six new Samsung CNC turning lathes with live tooling, Bunting Bearings is better equipped than ever to meet our customers’ needs. Two of these new additions were installed into a manual cell, while three were installed into a fully robotized cell, so they can be applied towards both low- and high-volume projects.

The sixth and largest machine of the group is the Samsung SL65/3200. It was installed to be used in conjunction with a VTL machine. We are excited about our new machining capabilities and what it means for our customers. Here is an overview of what CNC turning lathes do and the opportunities that our new equipment has created for our customers.

What Is a Live Tooling CNC Lathe?

A Computer Numerical Controlled (CNC) turning lathe is an automated tool that produces high-quality parts on a reliable, consistent basis. In a CNC lathe, the part itself spins while single-point cutters move across the part to create the desired shape, smoothness, and design; appropriate positioning of the part is provided by the main spindle’s ability to index precisely.

A programmer can design the part manually, or the part can be designed via computer-aided design (CAD) programs. From there, the computer directs the tool to make the appropriate cuts. After the design is perfected—which may require testing and adjustments to solidify the design—and production has begun, there is little need for constant supervision. The CNC lathe is highly precise and will continue making identical parts until all are complete. It can then be reprogrammed for a new part’s production. CAD parts can be saved and easily reapplied if a customer places another order for the same part in the future.

Our new live tooling CNC turning lathes give us a variety of options and functions with one simple set-up. When the part is stopped from spinning, driven tools (axial or radial) are able to create grooves and holes around the entire part as required. Without live tooling, we would have to remove the piece and go through additional steps to create grooves or holes, which adds on time, labor, and risks of error. Those live tooling capabilities within the CNC lathe are a major boost to productivity and accuracy.

What This Means for Our Customers

These new live tooling lathes are a worthwhile investment for Bunting Bearings, and a logical step in our growth process. We are now able to offer competitive pricing while producing parts with even greater precision. With fewer set-ups and less manual supervision, we can accomplish more in less time; our increased productivity means faster turnaround times and cost savings for you. With the two machines in the manual cell, we can maintain those quick turnarounds even on low volume runs.

As for the SL65, here are some of its specs, for insights to what it is capable of:

  • 24” chuck
  • 6” maximum swing
  • 126” maximum turning length
  • 5” diameter bar feed capacity
  • 12-station heavy duty turret

It also allows us to produce parts with live tooling ranging from diameters of 3/8” to 10.” We are glad to speak with you about any special needs or custom orders you have in mind.

Since our humble beginnings as Bunting Brass & Bronze in 1907, Bunting Bearings has grown to become one of the largest producers of bronze bearings in the country. From the start, our innovations have been driven by our desire to produce the best bearings possible to serve our customers. We are always looking for new ways to increase the value we offer you, our productivity, and to further improve the quality of our products, and our six new CNC turning lathes are part of this commitment.

We proudly produce a diverse range of bearings, including custom products, to suit your needs. To learn more about our new CNC turning lathes or our capabilities and services, contact us today.

Bearing with your Custom Needs

There are times when off-the shelf bearings or “it will be done in weeks” just won’t do. While most of our customers come to Bunting Bearings for our outstanding standard bearings and casting capabilities, there are those that need custom machining and quicker turnaround times. At Bunting Bearings neither one of these challenges is a problem!

Custom Capabilities

If you need custom bearings or machined products, then Bunting Bearings is the place for you. We are proud to offer our customers comprehensive on-site custom machining facilities. Our state-of-the-art and innovative facilities produce bearings and components that meet or exceed the highest and toughest industry standards. Thanks to Bunting’s skilled craftsmen and our computerized numerical controlled (CNC) machining lathes, mills, and other ancillary equipment, we can produce components from ¼” up to 20” in diameter. In addition, our design and engineering group are here to take you through the design of your custom bearings and components at no extra cost!

Custom machined products

Bunting Express

As if our custom machining capabilities were not enough, now we also offer Bunting Express. This fast track machining service is perfect for everything from getting a last minute order turned around quickly to helping you out if your machinery or plant is down for repairs. Bunting Express offers:

  • Quick and Accurate Quotes
  • A Dedicated Machine Shop in our Holland, Ohio facility
  • A Dedicated Team of Machinists
  • Bronze Components that are perfect for Prototypes & Pre-Production
  • 2 Hour Quote Time and 48 hours for Delivery of Parts

The key to everything we do at Bunting Bearings, whether it is our custom capabilities or our new Bunting Express service, is knowing that you are getting unmatched and industry-leading customer service and quality, plus the knowledge of over 100 years of experience today!