In industrial drive technology, one thing matters above all: absolute reliability. Manufacturer SWR has built its reputation on exactly that, combining decades of experience, uncompromising quality, and innovative solutions across a wide range of industries. Since 2011, we have been working closely with SWR Europe. What began as an initial collaboration has grown into a strong partnership that continuously enhances and expands our range of drive technology components. SWR’s perspective goes far beyond the product itself: a commitment to sustainability, tailored solutions, and a clear focus on the needs of modern industrial environments shape the company’s direction.
In an interview with Bodo van Dinther, Managing Director of SWR Europe, we explore the company’s fascinating history, its diverse product range, and the strategies that enable SWR to meet the challenges of an ever-changing industrial landscape.
Hello Mr. van Dinther, could you please introduce yourself and SWR? Where are the company’s roots, and why was Germany chosen as the location for its European branch?
Bodo van Dinther: SWR was founded in 1946 in Taiwan, at a time when industrial development in Asia was beginning to accelerate. From these beginnings, the company has grown into a globally recognized brand, exporting to more than 80 countries. The expansion into Europe came in 1992 with the establishment of SWR Europe, which was strategically located in Germany.
Germany was chosen for several reasons. First, its central location in Europe allows for efficient logistics and rapid delivery to key markets across the EU. Second, Germany’s engineering culture is globally renowned, providing access to a technically skilled workforce and a network of partners and suppliers that meet the high standards of precision and reliability SWR demands. Finally, Germany’s proximity to leading industrial sectors such as machinery, automotive, and mining means that SWR can maintain close contact with major customers and respond quickly to their technical requirements. In short, the European branch was created not only to sell products but to provide comprehensive support, faster response times, and a stronger local presence.
What are the advantages and disadvantages of manufacturing abroad?
Bodo van Dinther: Manufacturing abroad is a complex decision that comes with both clear advantages and notable challenges. On the positive side, production in countries with lower labor and material costs allows SWR to maintain competitive pricing without compromising quality. It also enables access to well-established supply chains and logistics networks that facilitate global distribution. Additionally, overseas production allows greater flexibility in planning, as plants can adjust quickly to fluctuations in demand or customer-specific requests, including customized belt dimensions or materials.
However, there are also challenges. Shipping finished goods over long distances can increase delivery times to certain markets, which makes efficient logistics management essential. Coordination between manufacturing sites and European offices can be demanding, requiring precise communication and reliable digital systems to avoid delays or misunderstandings. Finally, international manufacturing involves navigating currency fluctuations, varying import/export regulations, and compliance with local laws, which can introduce additional administrative overhead. For SWR, balancing these advantages and disadvantages is a continuous process, supported by a global management system that ensures consistency, quality, and responsiveness to customer needs.
What types of belts does your product portfolio include? What are the particular strengths of individual product types, and how do they differ from other manufacturers?
Bodo van Dinther: SWR offers a wide range of belts to meet diverse industrial requirements, including V-belts, timing belts, variable speed belts, conveyor belts, and ribbed belts. Each product type is designed with a specific set of characteristics that addresses particular challenges in industrial applications.
Our V-belts are one of SWR’s most versatile offerings. Known for their durability and efficient load transmission, they are used extensively in heavy-duty machinery such as agricultural equipment, stone crushers, and industrial compressors. They are engineered to maintain consistent tension over long periods, which reduces wear on both the belt and the machinery.
Timing belts are crucial for applications that require precise synchronization, such as in automotive engines or automated production lines. SWR timing belts are designed to operate quietly while maintaining exact alignment, ensuring that complex mechanical systems function smoothly.
Variable speed belts allow smooth speed adjustment in machines, making them ideal for energy-efficient applications or where gradual acceleration and deceleration are needed. They are often used in textile machinery, food processing, or small-scale automation systems.
Conveyor belts are optimized for stability and reliability, particularly in bulk handling or general industrial processes. They are built to withstand high stress, abrasion, and continuous operation, making them a dependable choice for demanding environments.
Ribbed belts, finally, combine the compact design of flat belts with high grip, allowing for multi-ribbed power transmission in smaller spaces without sacrificing torque or efficiency.
SWR differentiates itself from other manufacturers by focusing on high-quality raw materials, rigorous testing, and tailor-made solutions. The company prioritizes long-term reliability over short-term cost savings, which ensures that customers receive belts that not only perform efficiently but also last longer under demanding conditions.
V-belts must meet high quality and safety standards. How does SWR ensure that its products comply with international standards such as DIN, ISO, or specific customer requirements?
Bodo van Dinther: Quality assurance at SWR is a comprehensive process. All production facilities are certified under ISO 9001 for quality management, ISO 45001 for occupational safety, and ISO 14001 for environmental management. This framework ensures that every belt leaving the factory meets consistent standards.
Each belt is designed and tested according to DIN, ISO, and RMA specifications. Testing includes in-house laboratories where belts undergo assessments for tension, elongation, and heat resistance. This allows SWR to simulate real-world operating conditions and identify potential weaknesses before the product reaches the customer.
In addition to standardized testing, SWR conducts continuous quality audits and implements process improvements across all production stages. For customers with specific performance or safety requirements, SWR develops customized solutions that meet exact specifications, whether that involves unusual dimensions, specialized materials, or enhanced resistance to environmental factors. This combination of international standards compliance and tailored solutions ensures that SWR belts are consistently reliable and safe for every application.
What role does sustainability play in the production of different types of belts?
Bodo van Dinther: Sustainability has become a key focus for SWR. The company uses eco-friendly rubber compounds wherever possible and designs production processes to minimize waste. Energy efficiency is prioritized, both in the machines used for production and in the belts themselves, which are engineered for long service life to reduce the frequency of replacements.
Solar power is incorporated at several facilities, further reducing the company’s carbon footprint. By investing in sustainable production methods, SWR not only meets environmental regulations but also provides customers with products that contribute to more efficient and responsible industrial operations.
In which industries are your V-belts most frequently used, and what trends and challenges are you currently observing in these markets?
Bodo van Dinther: SWR belts are widely used in agriculture, air compressors, stone crushing, food processing, packaging, textiles, lawn and garden equipment, automotive applications, and other general industrial settings. In each of these sectors, durability, efficiency, and consistent performance are critical.
Current trends in the market include increasing demand for belts with longer service life and maintenance-free designs. Energy efficiency is another key focus, as companies look to reduce operational costs and comply with stricter environmental standards.
At the same time, the industry faces challenges such as rising raw material prices, which can impact production costs. Environmental and governmental regulations require compliance with strict standards, which demands constant attention. Additionally, low-cost competition from some regions puts pressure on companies to maintain high quality while remaining competitive in pricing. SWR addresses these challenges by combining technical innovation, rigorous quality management, and strong customer support.
Which developments or technologies in the field of drive and conveyor technology do you consider particularly exciting for the coming years, and how does SWR plan to respond to them?
Bodo van Dinther: One of the most exciting developments is the integration of AI and intelligent production systems into drive and conveyor technology. These technologies allow for real-time monitoring, predictive maintenance, and optimization of production processes, leading to higher efficiency and lower downtime.
SWR is actively investing in these technologies to lead the industry in innovation. By combining automation, AI, and digitalization, the company aims to improve product consistency, precision, and overall system performance. This proactive approach ensures that SWR remains at the forefront of technological advancements while continuing to provide practical, reliable solutions for its customers.
Thank you very much for the fascinating insights, Mr. van Dinther!
You may be familiar with this scenario: A customer wants to place an order, but the exact item you need is nowhere to be found. Frustrating? Absolutely. But at PICARD, there’s a solution that keeps things running smoothly even in such moments: the PICARD Emergency Bearing System, or PEBSY for short. Behind this acronym is a specialized team of four PICARD employees whose daily task is to make urgent procurement possible.
PICARD keeps around 60,000 items in stock and continuously expands its range. Through our online shop, you can always keep track of current inventory. However, sometimes the exact item you need is already out of stock – either because it sold out quickly or because it’s a particularly specialized component not part of our standard range. This is where PEBSY comes into play.
For about 25 years, PICARD has been supporting customers with this special service. What used to be a cumbersome process involving faxes and numerous phone calls is now handled much faster and more efficiently thanks to digitalization. Through our Europe-wide distribution network, the team has access to an almost unlimited number of items – beyond our standard range of bearings, linear technology, V-belts, and accessories if needed. This includes brands like IGUS, HIWIN, EZO, STIEBER, FLURO, IKO, MCGILL, PTI, REXNORD, and SEALMASTER, which we can source exclusively for you. The PEBSY service ensures that the right parts are requested and delivered reliably.
The process is seamless: Your sales manager records your requirements and forwards the request to our PEBSY team. The team quickly checks availability with over 150 suppliers across Europe. Reliable procurement in PICARD quality is made possible by our long-standing, trusted relationships with suppliers, often even faster than you might expect.
The entire process is designed for maximum convenience. Your order is consolidated into a single package, complete with a delivery note and invoice, without the usual paperwork that often arises when ordering through multiple intermediaries. There’s also no need to meet minimum order quantities with individual suppliers. For single gaskets or specialized bearings, placing multiple small orders often doesn’t make sense. PEBSY consolidates these processes for you, saving effort, time, and costs. Upon arrival, your goods are carefully inspected and then shipped directly to you or your customers, optionally via neutral direct delivery.
PEBSY does more than ensure availability. The team also evaluates potential alternatives, ensuring you always get the best solution for your customer’s application. Whether it’s shorter delivery times, special requirements, or sourcing rare spare parts, PEBSY works closely with our sales team to meet every customer need efficiently. This effectively relieves your inventory planning and demonstrates that behind every extensive product range, there’s a dedicated team providing solutions before a problem even arises.
For decades, Optibelt has been one of the leading manufacturers of high-quality belt drives, including V-belts and timing belts. We spoke with Sebastian Arens, Sales Manager for North Rhine-Westphalia at Optibelt, about how the company leverages its “Made in Europe” production to serve customers across industries worldwide. In the interview, Mr. Arens explains the strategies behind Optibelt’s product portfolio, how modern technologies influence the development and manufacturing of V-belts, and the opportunities and challenges of European production. He also shares insights into the future of belt drive technology.
Mr. Arens, please introduce yourself and Optibelt. What sets your company apart, and who are your customers?
Sebastian Arens: The Arntz Optibelt Group has stood for precision, reliability, and innovation in power transmission for over 150 years, with deep roots in Europe, especially Germany. Emil Arntz founded the company in 1872 as the “Höxtersche Gummifädenfabrik” in Höxter, East Westphalia. The company has remained family-owned ever since. Since November 2024, the management of Arntz Optibelt Group consists of Regina Arning (CEO) and Konrad Ummen, the great-great-grandson of Emil Arntz.
We design and manufacture high-quality V-belts and power transmission solutions used worldwide in machinery, production plants, and industrial processes. I joined the Optibelt family in 2011 and have been responsible for sales in North Rhine-Westphalia since mid-2024. Our customers – from traditional machinery manufacturers to high-tech producers – value our combination of technical expertise, rapid responsiveness, and long-term partnership. With our “Made in Europe” solutions, we offer not just products but reliable power transmission concepts that combine efficiency, quality, and service.
What types of belts do you manufacture? Do you focus more on a broad product range or specialization?
Sebastian Arens: Our portfolio combines both breadth and specialization. We offer a comprehensive standard range for various applications while also developing tailored solutions for demanding drives. This includes classic V-belts and narrow V-belts for standard drives, power bands for compact high-performance applications, timing belts for precise and synchronous movements, ribbed belts for auxiliary drives and multiple drive systems, and specialty belts such as endless flat belts, open-ended belts, or polyurethane variants for unique requirements.
Our product range is complemented by tensioning and idler pulleys, as well as accessories such as measuring devices, repair kits, and technical components for installation, maintenance, and system integration. This ensures that the right product is always available for every application. The key focus remains technical competence, reliability, and on-time delivery.
Which industries or applications are your V-belts primarily designed for?
Sebastian Arens: Our V-belts are designed for a wide range of industrial applications, particularly in machinery, conveyor technology, packaging and processing plants, and general power transmission.
They are used wherever high machine availability, long service life, and low total costs are critical. Typical examples include conveyor belts in the food industry, packaging lines in consumer goods production, or drives in energy and building material plants. In short, wherever efficiency and operational reliability are required, Optibelt ensures smooth and reliable motion.
A practical example can even be found at PICARD: the conveyor belts in their new fully automated shuttle warehouse are equipped with Optibelt Conveyor Power belts, manufactured at our facility in Romania.
How do automation and artificial intelligence influence your daily work at Optibelt?
Sebastian Arens: Automation and AI now play an integral role in our development and manufacturing processes. We use data-driven optimization for product design, lifespan forecasting, and quality control. This results in belts with consistently high quality that meet the increasing demands of modern drive systems.
Can you give concrete examples of how these technologies are applied at Optibelt?
Sebastian Arens: Certainly. In our central warehouse, product storage and retrieval are automated, as is tool logistics at our plant in China. Laboratory equipment for quality assurance of raw materials also runs automatically. Beyond this, we use AI not only to develop new formulations – though there are still some limitations – but mainly to address complex challenges.
This ranges from analyzing and optimizing tool coatings, understanding complex customer applications, to developing new methodological approaches. Another exciting example is our internal AI assistant, “Optibot,” which translates work documents into Romanian or Chinese in seconds – a real efficiency gain for our operations.
What benefits do these technologies offer to your customers?
Sebastian Arens: These technologies help us shorten innovation cycles and minimize downtime for our customers – a clear advantage in dynamic production environments. Ultimately, it’s about supporting our customers with reliable, high-performance products while remaining flexible to new requirements.
Optibelt manufactures not only in Europe but at nine locations worldwide. What are the advantages and challenges of European production?
Sebastian Arens: “Made in Europe” stands for top-quality products, short support channels, and reliable supply chains. Particularly noteworthy is the high traceability of our products, combined with strict environmental and occupational safety standards – advantages that our customers value.
Of course, production in Europe comes with challenges, such as higher energy and raw material costs and complex capacity planning. Nevertheless, the advantages clearly outweigh the challenges: we ensure stability, quality, and service at consistently high levels.
A good example is our Romanian facility, where we manufacture a broad range of ribbed belts, V-belts, and power bands. At our headquarters in Höxter, Westphalia, we focus on specialty and custom belts as well as technically demanding new developments, which are also tested in our in-house test field.
Often overlooked is that our international plants – nine worldwide – are closely integrated with our headquarters in Höxter. They follow the same quality standards and are guided by centralized development and manufacturing protocols. This ensures that our customers can rely on the same Optibelt quality worldwide, regardless of where the product is made.
Sustainability and energy efficiency are increasingly important in industry. What measures does Optibelt take to produce environmentally friendly and durable belts? What quality standards and certifications do your products meet?
Sebastian Arens: Sustainability is a core part of our corporate strategy. We use environmentally responsible materials, energy-efficient production processes, and produce durable products.
Measures include energy-saving programs, recyclable packaging, and ongoing optimization of production to reduce our CO₂ footprint. Our products naturally meet all relevant quality standards and certifications to ensure maximum safety and performance.
The Arntz Optibelt Group has also implemented numerous initiatives to achieve its ambitious climate targets. For example, the manufacturing plant in Höxter hosts the region’s largest ground-mounted photovoltaic system, producing 1.4 MWp and covering a significant portion of energy demand. Additionally, buildings are equipped with energy-efficient LED lighting, the vehicle fleet is gradually transitioning to electric mobility, and the company consistently sources green electricity and biogas. In material management, Optibelt recycles rubber internally, and fillers from the vulcanization process are reused – a significant contribution to resource conservation and circular economy.
What is the future of the V-belt in light of new drive technologies? Are there any exciting developments in this field?
Sebastian Arens: The future of the V-belt is more exciting than ever. Despite new drive technologies, V-belts remain a central element of modern power transmission: robust, efficient, and versatile. Our task is to combine this proven technology with innovative ideas to make it future-ready.
We see a clear trend toward more flexible profile options, higher power density, and improved resistance to heat and wear. Particularly exciting are hybrid drive solutions that combine multiple technologies and place new demands on belt technology.
It should not be forgotten: very few drives offer such a low power-to-weight ratio, minimal lubrication requirements, and low cost as belt drives. Their flexibility is impressive – whether absorbing shocks in road milling machines, damping vibrations in automotive auxiliary drives, or ensuring quiet operation in printing presses. In agricultural machinery, belts even act as safety clutches to prevent engine damage during blockages.
And as polymer products, drive belts still have vast potential for innovation. Unlike materials like steel, whose development has plateaued, belt performance roughly doubles every five years. They become more efficient, more sustainable, and continue to open up new applications. A good example is timing belts in bicycles, increasingly replacing traditional chains: no lubrication, no greasy trousers.
In short: V-belts are not only relevant but continue to evolve dynamically, and at Optibelt, we are actively shaping this future.
Thank you for this insightful conversation, Mr. Arens!
Whether in machine tools, printing presses, medical technology, or aerospace – wherever maximum precision and reliability are essential, high-precision bearings demonstrate their strengths. With their ability to operate at very high speeds, precisely absorb both axial and radial loads, and maintain consistent running accuracy, they play a decisive role in industrial productivity and quality.
A look back at their development shows how the requirements for this bearing type have continuously evolved – always driven by new technologies and market demands. At the same time, current R&D work provides a clear view of the future: from more efficient materials and smart sensor technology to more sustainable lubrication concepts.
Retrospective: From Speed Increases to Service Life and Cost Efficiency
In the 1980s and 1990s, the primary focus was on higher speeds. To meet growing performance demands, hybrid bearings with ceramic rolling elements were introduced on a large scale. Silicon nitride balls are not only lighter and harder than steel, they also generate less friction, less heat, and lower centrifugal forces – a decisive advantage in high-speed spindles.
In parallel, bearing geometries were refined, for example by using smaller balls with the same bearing diameter, and by developing preload strategies. Different arrangements such as O, X, or tandem configurations opened up new possibilities to tailor stiffness and load capacity to specific applications.
From the 2000s onward, the focus shifted. Beyond speed and precision, service life, ease of maintenance, and cost efficiency gained importance. Grease lubrication became the dominant trend, offering easier handling, lower infrastructure requirements, and reduced environmental impact compared to oil-air lubrication. Manufacturers responded with innovative solutions such as sealed bearings with integrated grease reservoirs, which operate reliably for many years without relubrication.
Today: Efficiency, Flexibility, and Digital Support
Today’s requirements for high-precision bearings are more complex than ever. Machine tools are becoming more compact, while also more versatile and highly automated. Bearings must therefore deliver top performance in confined spaces while ensuring long-term reliability.
A key development in this context is the reduction of vibrations. Advanced cage designs and new materials, such as glass- or carbon-fiber reinforced PEEK, provide better lubricant flow, lower mass inertia, and higher stability. The result: improved surface quality of machined parts and extended bearing service life.
At the same time, digitalization has made its way into bearing technology. Simulation tools and calculation software help engineers select the right bearing configuration, determine stiffness and preload, and run through different scenarios quickly. This shortens development cycles and enables solutions that are precisely tailored to customer requirements.
Looking Ahead: Sustainability, Sensor Technology, and Smart Bearings
In the coming years, four overarching themes will shape the future of high-precision bearings: sustainability, digitalization with AI-driven processes, miniaturization, and new applications in electromobility.
High-precision bearings are a perfect example of how classic machine elements continually reinvent themselves through innovation. From speed and accuracy to sustainable lubrication concepts and smart sensor-based solutions – this technology is evolving in step with the demands of modern manufacturing.
For manufacturers, distributors, and end-users alike, one thing is clear: those who embrace these trends early can increase productivity and secure a competitive edge. The future belongs to energy-efficient, connected, and highly flexible bearings that are more than just components – they are key enablers of intelligent and sustainable production.
A single prick from a spindle once sent Sleeping Beauty into a century-long slumber. Today, the spindle represents speed, precision, and efficiency in industrial manufacturing. What began as a simple tool for spinning thread has evolved into a core component of modern production. Spindle bearings may be small and often overlooked, but they are essential: they ensure the accuracy and performance that modern machine tools depend on. Without them, even the most advanced spindle cannot reach its full potential.
From Ancient Tool to High-Precision Bearing
The word “spindle” has undergone a remarkable technical transformation. Originally, it referred to a primitive tool used for spinning thread – a concept dating back to the Neolithic era and later replaced by the spinning wheel in the Middle Ages. In today’s industrial context, the term describes rotating shafts in machines that drive tools or workpieces. The high-precision angular contact ball bearings that support these shafts are commonly referred to as spindle bearings. Their role: to guide rotational movement with utmost precision, withstand high speeds and loads, and operate smoothly and with minimal vibration.
Why the Bearing Defines Spindle Quality
The performance of any machine tool is only as good as its spindle and the spindle’s performance depends heavily on the quality of its rolling bearings. Spindle bearings have a direct impact on machining accuracy, surface finish, tool life, and repeatability. Far from being just another component, they are a critical element that influences the entire value chain, from machine capability to product quality. This is especially true in serial production or when machining complex geometries with tight tolerances, where bearing quality becomes a decisive factor.
Not All Spindles Are the Same: Designs and Drive Concepts
Depending on the machining process, spindles vary significantly in their design and performance requirements. Milling spindles are engineered for high material removal rates at medium to high speeds. Grinding spindles require exceptional smoothness and stiffness to achieve ultra-fine surface finishes. Main spindles in turning and milling machines drive the cutting process, while lead screws provide precise linear motion – for example, in positioning or threading operations.
The choice of drive concept also plays a crucial role in spindle performance. Direct-drive motor spindles offer compact designs, high stiffness, and smooth running – ideal for highly dynamic machining operations. Indirect drives using belts or gearboxes, on the other hand, offer greater flexibility in torque and speed design. The key is to ensure that the spindle bearings are optimally matched to the specific drive system.
Spindle Bearings: Precision for the Highest Demands
Spindle bearings are high-performance components. They are manufactured to extremely tight tolerances, with raceways finished to microscopic precision and materials engineered for thermal stability, low friction, and long service life. In hybrid bearings, ceramic rolling elements made from silicon nitride are often used in combination with high-purity steel. Lubrication also plays a crucial role: specialized greases, low-friction seals, or oil-air lubrication systems all contribute significantly to efficiency and durability.
Selecting the right bearing is far from trivial. It affects not only speed limits and load ratings but also heat generation, maintenance intervals, and overall machine efficiency. In machine tool engineering, spindle bearing design is rightly considered a “discipline of its own.”
After all, machine tools are often referred to as the “mother machines” of industry – because they produce the machines that keep our economy running. Their performance stands or falls with the spindle unit. And at the heart of the spindle is the bearing. Investing in spindle bearings means investing in accuracy, efficiency, productivity and ultimately in the long-term viability of the entire production system.
Spindle Bearings at PICARD
At PICARD, technical distributors will find a comprehensive range of spindle bearings, from ultra-lightweight to heavy-duty designs, available in various configurations and tailored to a wide range of applications. Our portfolio includes premium brands such as NSK, SKF, FAG (Schaeffler), NTN, NACHI, and UKF. We also offer a wide selection of other high-precision bearings, including cylindrical roller bearings, separable ball bearings, and axial angular contact ball bearings, all designed to meet the highest demands in terms of stiffness, load capacity, and smooth operation.
Visit our online shop: https://shop.picard.de/en/home/
While standard rolling bearings already offer high levels of precision when installed correctly, certain applications, such as those in the machine tool industry, demand even greater accuracy. These environments also subject bearings to high rotational speeds and significant loads. To meet these challenges, several leading manufacturers offer specialized Super Precision bearings, often referred to as spindle bearings.
We spoke with Jörg Wagner from NSK about what sets these precision bearings apart, how they differ from standard bearing types, and what trends are shaping the future of Super Precision bearing technology.
Mr. Wagner, could you briefly introduce yourself and the company NSK?
Jörg Wagner: My name is Jörg Wagner, and I’m the Sector Manager for Machine Tools at NSK. I’m responsible for driving our machine tool business in Europe, with a focus on linear motion and Super Precision bearings. NSK is a Japanese company with over 100 years of history. The name stands for “Nippon Seiko KK,” which translates to “Japanese Precision Components.” We are one of the world’s leading manufacturers in both rolling bearings and linear motion technology.
What exactly defines a Super Precision bearing, and how does it differ from a standard bearing or NSK’s HPS bearings?
Jörg Wagner: As the name suggests, Super Precision bearings are manufactured with extremely tight tolerances and outstanding accuracy in terms of runout and dimensional stability – down to a few microns. This level of precision is essential to meet the performance demands of today’s machine tools, particularly when tight machining tolerances and high rotational speeds are involved.
Standard bearings are designed for less demanding environments. Our HPS (High Performance Standard) bearings represent a high-end standard solution, offering increased load capacity, optimized internal geometry, and extended service life. They’re ideal for applications like electric motors or industrial machinery, where a full Super Precision bearing might not be necessary.
Which bearing series does NSK offer in the Super Precision range, and how should customers approach their selection?
Jörg Wagner: We offer several Super Precision bearing series, each tailored to specific application needs. For example, our 70, 72, and 79 series use larger balls, making them well-suited for applications with high radial loads and moderate speeds.
For significantly higher speeds, our Robust Series is the preferred choice. These bearings use medium-sized balls and can achieve very high speed ratings – up to 3 million dm*n, which corresponds to 30,000 rpm at a 100 mm pitch circle diameter (about 80mm bore). For customers who require both high speed and high load capacity, we recommend our RobustDyna Series, which combines both characteristics through an optimized internal design. We also offer cylindrical roller bearings in single- and double-row configurations, designed for applications requiring especially high radial stiffness.
Ultimately, the ideal bearing depends on the specific demands of the application – whether speed, load, space constraints or thermal performance are the priority.
What makes NSK’s high-precision bearings stand out compared to other manufacturers?
Jörg Wagner: At NSK, maintaining consistently high manufacturing quality is a top priority. Our runout and tolerance standards strictly adhere to ISO specifications. In addition, we ensure above-average reproducibility through the use of state-of-the-art manufacturing technologies – an especially crucial factor for high-speed spindles, where even the slightest deviations can significantly impact performance.
Another differentiator is our cage technology. Our SURSAVE cage, for example, is engineered for optimal oil flow, minimal imbalance, and low thermal expansion – contributing to extremely smooth operation, even at very high speeds.
In our hybrid bearings, we combine silicon nitride ceramic rolling elements with ultra-clean, high-purity steels. This pairing significantly reduces micropitting and extends bearing life. We also offer a wide range of preload options, precisely graded and factory-marked, ideal for vibration-sensitive environments.
Our lubrication solutions are another strength: Our portfolio includes a wide range of high-performance lubricants, as well as various bearing designs for oil or grease relubrication. Of course, we also offer Super Precision Bearings with non-contact seals that enable reliable lifetime lubrication.
Notably, NSK bearings can achieve extremely high dm*n values. In some cases, these reach up to 3 million, positioning us as a leader in ultra-high-speed applications such as aerospace and high-frequency spindles.
Quality assurance is another core strength: every NSK Super Precision bearing is traceable by lot number, individually tested, and inspected for noise and vibration. This level of control sets us apart in terms of both technological expertise and process reliability.
In which industries or applications are high-precision bearings typically used?
Jörg Wagner: The primary market is the machine tool industry, especially in main spindles of milling, turning, and machining centers. Super Precision bearings are also commonly used in live tooling units and high-performance spindle modules. Beyond that, they are found in applications such as printing machinery, gearboxes, and specialty equipment – anywhere precise, repeatable movement is critical.
How does the international ISO standard differ from the Japanese JIS, the German DIN, or other well-known standards and what should customers be aware of when selecting bearings?
Jörg Wagner: The dimensional tolerances and running accuracy of NSK radial bearings comply with the specifications outlined in “Accuracies of Rolling Bearings” according to ISO 492, 199, 582, and 1132-1, as well as “Rolling Bearing Tolerances” under JIS B 1514. In addition, NSK also manufactures angular contact ball bearings in precision classes ABEC 5, 7, and 9, based on Standard 20 of the American Bearing Manufacturers Association (ABMA).
Ultimately, however, all these standards follow the same basic principles – whether it’s JIS (Japan), DIN (Germany), ISO (international), or ABEC/AFBMA (USA). While the designations may differ, the technical content is nearly identical. That means the various standards are largely interchangeable.
For example, our P2 tolerance grade under JIS aligns with DIN P2 or ABEC 9 in the U.S. Ultimately, what matters most is not the standard’s name, but an understanding of what the specific tolerance class entails in terms of performance.
What technological trends and developments do you expect in the Super Precision bearing market?
Jörg Wagner: Focusing specifically on Super Precision bearings for machine tools, I’d say the current market is experiencing a degree of uncertainty, especially with the ongoing transformation of the automotive sector. Many previously stable applications are being disrupted by the shift to electric mobility.
As a result, customers are increasingly looking for versatile bearing solutions – products that can deliver both high speeds and high load capacities. Our RobustDyna Series is designed exactly with this in mind: a universal solution that offers the best of both worlds without compromise.
Thank you for the insightful conversation, Mr. Wagner.
Linear technology has been a core part of the PICARD product range since 2015. What started as a pilot project has evolved over the past decade into a key business segment. Today, our in-house Linear Center – combining advanced technology with a dedicated team – offers customized processing of linear components to meet specific customer requirements. We spoke with Dominik Leskosek, Area Manager of the Linear Center, about the journey so far and the milestones along the way.
Dominik, you’ve been with PICARD’s linear motion team from the very beginning. Tell us a bit about yourself and how you got started in this field.
Dominik Leskosek: My name is Dominik Leskosek, I’m 34 years old, and I’ve been part of the PICARD team for ten years – right from the early days of our linear technology department. From my first interview with our managing director, I knew this was a place where I could make a difference and apply my technical background in a meaningful way. I originally started in the picking and shipping area, but my interest in linear motion systems quickly drew me into this field. Now, as Area Manager of the Linear Center, I’m proud to have helped shape its development from day one.
Looking back, how has PICARD’s linear technology segment evolved over the past decade? What were some of the key milestones – especially regarding the size of the center or team growth?
Dominik Leskosek: When we kicked things off in summer 2015, we didn’t fully realize how much technical knowledge and organizational effort would be required to handle customized linear motion components. Unlike standard stock distribution, our work involves configuring and processing components to exact customer specifications – posing unique challenges in both logistics and machining.
Thanks to my background as a plant mechanic, I was able to bring in some hands-on experience. We quickly identified areas for improvement. A major milestone came in 2017, when we replaced our manual cutting equipment with an automated saw. That step was crucial for meeting our delivery promise – today, most rails and shafts leave our warehouse on the same day they’re ordered, saving customers valuable time.
Growing demand led us to move into a dedicated facility in 2018 and invest in a second automatic saw. By 2019, we introduced chamfering on rail ends using a horizontal milling machine – making it easier to install carriage blocks and protecting the seals. In 2022, we expanded our machine park with an additional horizontal mill and a surface grinding machine, allowing us to produce multi-piece rail systems with precision.
Our team has grown from three to ten employees, working in early and late shifts as well as in packaging. Together, we ensure every order is processed efficiently and reliably.
What types of processing can PICARD offer for linear rails and shafts?
Dominik Leskosek: Custom cutting and finishing of profile rails and shafts is central to what we do – especially tailoring them to specific lengths. Manufacturers typically supply standard lengths of up to eight meters, but our customers often require something very different. That’s why cutting is one of the most important steps in our workflow. Each rail or shaft is measured and cut to the customer’s specifications using our specialized saws.
After cutting, deburring and chamfering are essential to remove sharp edges. We use a horizontal milling machine for rails and a special rotating deburring tool for shafts – both crucial for safety and functionality.
When a customer needs a rail longer than what’s available in standard lengths, we offer butt machining using face grinding. Our high-precision grinder ensures a gap of less than 0.02 mm between two joined rail ends – allowing carriages to glide over the joint without interruption.
Finally, each rail is cleaned, protected against corrosion, and laser-marked using our in-house engraving machine. Matched rail ends are labeled to ensure correct alignment during installation. The result: fully prepped components ready for immediate use – no additional processing required.
Which products laid the foundation for today’s linear motion range? How has our stock evolved since then?
Dominik Leskosek: We began with linear rails and shaft guides from leading manufacturers like INA (Schaeffler), NSK, and THK. Over time, we’ve added more premium brands such as Schneeberger, EWELLIX (Schaeffler), Bosch Rexroth, and SNR. Since 2015, we’ve quadrupled our inventory to ensure wide availability and fast delivery for our customers.
How quickly can PICARD deliver custom lengths?
Dominik Leskosek: Even custom-cut components – often including multi-piece rails – typically ship the same day the order is placed, provided it arrives by 7 p.m. Of course, this also depends on the size of the order and the shipping provider’s pickup schedule. Orders received later in the evening will usually ship the next business day.
Is there a particular order that stands out in your memory?
Dominik Leskosek: There have been quite a few remarkable projects over the years. One that really stuck with me was a shipment to South America – 11.5 tons of material packed into 13 crates, with rail lengths up to 6.3 meters. Another memorable one was for a Dutch customer who needed over 3,000 individual cuts for a single project – the highest number of cuts we’ve ever completed in a single order. Despite the size, we were able to fulfill the request on schedule without impacting other customer deliveries.
Thank you for sharing these fascinating insights!
When selecting a linear guide, most people think first of the basics: load ratings, size, lubrication. And rightly so – these are all critical parameters. But in practice, there’s another factor that plays a key role in the performance of a linear motion system: the accuracy class, also known as the precision class. It directly affects dimensional accuracy, running behavior, and the overall service life of the application. For distributors and technical advisors, it’s also a great opportunity to add real value in the consultation process.
What does “accuracy” mean in the context of linear guides?
In everyday language, “accuracy” often refers to the positioning or repeatability of a system. Technically speaking, however, the accuracy class of a linear guide includes much more – specifically, the geometrical tolerances between the rail and the carriage. These tolerances significantly influence motion quality, load distribution, and overall system behavior.
An accuracy class is typically defined by five main criteria:
Additional Tolerances:
Even minor differences in these values can lead to uneven loading, increased friction, or even binding within the system. For the user, that could mean reduced accuracy, faster wear, and in some cases, premature failure of the entire guide system.
Why accuracy classes matter in real-world applications
Choosing the right accuracy class is crucial for proper system design and optimal performance. It allows linear guides to be tailored precisely to the specific requirements of a given application and helps avoid miscalculations in system specification.
A class that’s too low can result in functional issues, such as unwanted tension, uneven bearing loads, or limited repeatability. This becomes especially critical in systems with multiple carriages on a single rail or in parallel rail configurations, as commonly found in gantry systems, packaging machines, or automation equipment. In these setups, even small deviations can cause unwanted forces, moments, or premature wear.
A quick guide to typical accuracy classes
Most linear guide manufacturers offer between four and six standard accuracy classes. While the naming conventions and exact tolerance values vary slightly from brand to brand, the basic structure is comparable: the higher the class, the tighter the tolerances. The following categories provide a manufacturer-independent overview:
Depending on the manufacturer, these classes may be labeled as N, H, P, SP, or UP (e.g. Bosch Rexroth) or G0 to G4 (e.g. Schaeffler). Despite different terminology, the tolerance ranges are typically comparable across reputable brands.
Common misconceptions – and how distributors can add value
One frequent misconception is that a highly precise linear guide can compensate for inaccuracies in the machine base or mounting surface. In reality, the opposite is true: the more precise the guide, the more precise the mounting surface must be. Precision guides do not adapt to their surroundings – they require a high-quality installation environment. Mounting an ultra-precise rail on an uneven base will cancel out the benefits of tight tolerances – or worse, introduce stresses that lead to early wear or failure. This is exactly where technical distributors can make a difference: by advising customers not just on product selection, but on the overall system accuracy and installation conditions. This kind of support helps avoid costly errors and builds lasting customer relationships based on trust and competence.
A practical advantage: Better availability for higher precision classes?
Thanks to close cooperation with manufacturers and a demand-driven stock strategy, we’re often able to deliver higher-precision accuracy classes at short notice – frequently at comparable pricing to standard versions. This allows us to offer not just technical insight, but also logistical advantages that benefit your project timelines and procurement planning.
At PICARD, the focus is on growth – and not just economically: with the official commissioning of two new buildings, we are sending a clear signal for the future. A state-of-the-art shuttle warehouse, new office space covering 1,212 m², and an additional extension with an in-house fitness studio, a unique Biophilic Room, and spacious social areas are not only creating more space but also offering new opportunities for efficient processes and an attractive working environment. After an intensive planning and construction phase, we are excited to introduce our new buildings at our facilities in Bochum.
Our Shuttle Warehouse: Cutting-edge Technology Meets Maximum Efficiency
Innovation and digital solutions are deeply embedded in PICARD’s DNA. As early as the late 1990s, we introduced the first online shop in the bearing industry as a wholesaler – and we continue to rely on advanced technologies today. A particularly visible example of this is our new, fully automated shuttle warehouse. The largest single investment in logistics at PICARD sets new standards in efficiency.
The fully automated system enables highly precise and rapid picking – even around the clock if necessary. Thanks to cutting-edge technology, the containers travel at speeds of up to 4 m/s from the shelves to the pick locations, enabling up to 1,200 containers to be processed per hour.
Another highlight is the optimized use of space: with a shelf height of 15.8 meters and a ceiling height of 16.5 meters, and a triple-deep, high-density storage system, the system accommodates almost 58,000 container positions across 42 levels. This expansion significantly increases our warehouse capacity and makes our logistics processes even more efficient – all without additional personnel costs.
Watch a time-lapse of how the racking system was installed in the warehouse here:
New Office Space for a Growing Team
As our company grows, so do the demands on our infrastructure. That’s why we’ve created 1,212 m² of new office space across three floors above the picking zone in our shuttle warehouse. This has resulted in a modern workspace with 67 new workstations, offering our employees even more room for productive work and creative exchange.
The spaces combine functionality with a well-thought-out room concept: new conference rooms, meeting areas, and comfortable lounges for short breaks not only encourage communication but also enhance well-being at work. Special attention was paid to accessibility: a passenger elevator and disabled-friendly restrooms ensure that all employees – regardless of physical limitations – have unrestricted access to all areas.
More Space, More Opportunities: New Building Complex with Fitness Studio, Social Areas, and a Focus on Well-being
We’ve also made sure to balance work, movement, and relaxation: In our second expansion, employees with a passion for fitness can enjoy a new 451 m² in-house gym. Equipped with modern cardio and strength training areas, a separate group fitness room, and direct access to the loggia, the gym provides excellent conditions for targeted training as well as for relaxing breaks outdoors after a workout. Adjacent to the gym, the Biophilic Room offers a retreat for relaxation and unwinding – a quiet space designed with unique interior architecture to focus on relaxation alongside the workday. The large rooftop terrace is ideal for internal events or informal meetings with a view of the greenery.
The offering is completed by spacious new social rooms with changing facilities, lockers, and showers, as well as accessible and gender-neutral restrooms. A special highlight is the “Kauenhimmel,” inspired by the “Kauen” from the former mines, where miners stored their clothing. We even incorporated the original baskets from the former Zeche Hugo’s washrooms in Gelsenkirchen. Now, they serve to dry towels. The “Kauenhimmel” is not only a striking design element but also highly functional – reflecting our deep regional ties to the Ruhr area.
Of course, as the company grows, so does the need for parking. We have significantly expanded the number of parking spaces from 90 to 148. The charging infrastructure for electric vehicles is also being expanded: In the future, there will be eight charging stations with two charging points each – another step toward sustainable mobility at PICARD. At the same time, the infrastructure for our company’s electric vehicles is being expanded and adapted to the growing electric fleet.
Sustainable Energy Generation Focus: Large PV System on PICARD Roofs
Sustainable energy supply plays a central role in our construction expansion efforts. That’s why large-scale photovoltaic systems have been installed on the roofs of both the new and existing PICARD buildings. The goal is to make optimal use of the total roof area of around 9,300 square meters and achieve a total output of up to 1.2 megawatts peak.
With this investment in renewable energy, we are not only contributing to the reduction of our CO₂ emissions but also meeting important requirements as part of our ESG sustainability strategy. In the future, the surplus electricity production will offer the possibility of integrating energy storage systems or feeding it into the Bochum city grid – another step toward greater energy efficiency and climate protection.
At the same time, using our own solar power positively impacts our energy cost structure: we make ourselves less dependent on energy price fluctuations in the long term and promote our economic sustainability. In case of an extended power outage, we will also be prepared: a mobile backup power system will ensure continued operations – and, in turn, ensure the supply for our customers.
With the new operational buildings, we are not only strengthening our competitiveness – we are also expanding the high-tech working environment for our employees. This ensures that PICARD remains a reliable partner for our customers worldwide and an attractive employer in Bochum in the future.
This quarter, we are focusing on deep groove ball bearings – an essential component in countless industrial applications. Every manufacturer brings their own expertise to the development of these bearings, but what sets them apart? Japanese manufacturer NACHI has developed a unique design featuring specially designed seals and a specially formulated lubricant to ensure maximum performance and durability.
We had the opportunity to speak with Florian Nimz, Sales Manager of NACHI’s Bearing Division. In our interview, he provides fascinating insights into NACHI’s manufacturing processes, explains the story behind the company’s name, and shares how NACHI is preparing for the future of the bearing industry with innovative solutions.
Let’s start with a brief introduction. Who are you, and what is your role at NACHI?
Florian Nimz: My name is Florian Nimz, and I am the Sales Manager for NACHI’s Bearing Division. I oversee industrial customers and distributors in southern and eastern Germany, Austria, and Switzerland.
Where does the name NACHI come from?
Florian Nimz: The NACHI brand name originates from “KUMANO-NACHI-TAISHA,” the Grand Shrine, considered the birthplace of Japan. This name reflects our strong corporate spirit. NACHI was established as a brand in 1929, just a year after the company was founded, and has been carried by all our products ever since.
Your company covers the entire manufacturing process, from steel production to the final bearing application, particularly in robotics. Can you tell us more about this?
Florian Nimz: Our product portfolio includes cutting tools, specialty steels, bearings, hydraulic components and systems, and industrial robots. All of these products are manufactured in-house, creating a uniquely integrated system. This gives us complete control over our processes and allows us to ensure the highest quality standards for our final products. We supply a wide range of industries, with a particular focus on machine tools, construction equipment, the automotive and aerospace sectors, power plants, and the electrical and electronics industries.
Your portfolio includes deep groove ball bearings with specially designed seals as a standard feature. What sets this design apart?
Florian Nimz: The combination of a specially engineered seal groove and a unique lip shape ensures consistent sealing contact. This is crucial for maintaining excellent sealing performance, even when there are relative movements due to clearance, external loads, or manufacturing tolerances. Additionally, an integrated breather notch prevents pressure differences caused by temperature fluctuations, which could otherwise increase torque. Moreover, a newly developed heat-resistant nitrile rubber material ensures a reliable sealing performance across a temperature range of -25°C to 130°C.
What type of lubricant is used in these deep groove ball bearings?
Florian Nimz: Our deep groove ball bearings are lubricated with Multemp SRL-Q, a high-performance grease developed specifically for NACHI in collaboration with Kyodo Yushi. This lubricant has been optimized to meet the exact requirements of NACHI bearings. Compared to conventional standard grease, it offers twice the service life at an operating temperature of 120°C. This significantly extends the lifespan and enhances the performance of the bearings, especially under demanding operating conditions.
Looking ahead, what challenges and opportunities do you see for the bearing industry in light of global market developments and technological advancements?
Florian Nimz: Right now, we are focused on developing resin-coated bearings that offer enhanced protection against electrolytic corrosion—an important innovation, particularly for the growing electric vehicle (EV) market. While demand for EVs is still developing, we expect significant growth in the coming years. With this new specification, we are also exploring potential applications in industrial electric motors, as the internal conditions in these motors are similar to those in EVs. Currently, ceramic bearings are used to prevent electrolytic corrosion. If we can successfully replace them with our solution, we can offer a more cost-effective product. This is just one example of how we continuously adapt our portfolio to meet the evolving needs of the market.
Thank you for the insightful conversation!
