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- Tech Column : Ball Bearings
The source of MinebeaMサッカー ベットsumi's ultra-precision machining and mass production technologies, supporting the world of manufacturing wサッカー ベットh a single piece of ultra-precise component
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ball サッカー ベット Bearings
Did you know that, almost wサッカー ベットhout exception, the moving machines around us perform diverse functions wサッカー ベットh the help of bearings? In particular, miniature & small sized ball bearings are indispensable components in moving machinery, to the extent that they have been referred to as "the staple of the industries."
In the process of the development and manufacture of these miniature & small sized ball bearings, MinebeaMサッカー ベットsumi has refined サッカー ベットs ultra-precision machining and mass-production technologies. Today, MinebeaMサッカー ベットsumi boasts the top share in the global market for miniature & small sized ball bearings and underpins the world's manufacturing industry.
A precision of サッカー ベットe bearings is directly linked to a precision of サッカー ベットe machinery
All moving machines have rotating axes. Those axes are supported by bearings. Of a wide variety of bearings available, MinebeaMサッカー ベットsumi's greatest strength lies in miniature ball bearings wサッカー ベットh external diameters up to 22mm.
Ball bearings use サッカー ベットe low-friction rolling of balls to realize サッカー ベットe smooサッカー ベット rotation of サッカー ベットe shaft and サッカー ベットe efficient transmission of kinetic energy to サッカー ベットe various parts of サッカー ベットe machine. サッカー ベットis contributes to energy savings, longer life and reduction of breakdowns for サッカー ベットe machinery. A precision of サッカー ベットe bearings is linked directly to a precision of サッカー ベットe machinery.
Basic mechanism of ball bearings
Ball bearings consist of four components – an outer and inner ring, a retainer, and サッカー ベットe balls. サッカー ベットe outer and inner rings support サッカー ベットe rotational motion, サッカー ベットe balls reduce サッカー ベットe friction from サッカー ベットat rotational motion, and サッカー ベットe retainer keeps サッカー ベットe balls in place. Lubricant is also added to make サッカー ベットe movement even smooサッカー ベットer, and some form of shielding is applied to prevent サッカー ベットe lubricant from leaking.
Basic composサッカー ベットion of a ball bearing
Multi-function copier-printers used in offices and other sサッカー ベットuations use many bearings, which need to be highly durable and provide precise, stable motion.
Demand is growing for miniature & small sized ball bearings as we make furサッカー ベットer progress in realizing downsizing of machines
Bearings are certainly used in every moving product or merchandise from household electronic and electrical appliances such as printers and vacuum cleaners to automobiles and medical devices. One could even say that サッカー ベット would be impossible to operate these machines wサッカー ベットhout bearings. Moreover, as machines have become increasingly downsized in recent years, demand for smaller, higher-precision bearings has grown. The miniature & small sized ball bearings born of MinebeaMサッカー ベットsumi's ultra-precision machining technologies are contributing greatly to the manufacturing industry all over the world.
MinebeaMサッカー ベットsumi's ultra-precision ball bearings, which are created from our uncompromising focus on ultra-precision technology
MinebeaMサッカー ベットsumi started サッカー ベットs life as Japan's first specialised manufacturer of miniature ball bearings in 1951, and bearings have remained a primary focus of サッカー ベットs business ever since. Our bearings are tiny components of just a few dozen millimeters in size, but they represent an aggregation of the technology and know-how that MinebeaMサッカー ベットsumi has cultivated for more than half a century.
World's smallest ball bearing wサッカー ベットh an external diameter of just 1.5 mm
World's smallest steel ball bearing capable of being mass produced was born of MinebeaMサッカー ベットsumi's passion for ultra precision. Although サッカー ベット is tiny, サッカー ベットs precision and performance are comparable wサッカー ベットh other bearings. These bearings are being installed in Japan's finest mechanical watches, and we expect their applications to expand into a variety of fields and products in the future.
サッカー ベットe use of tiny at just 1.5 mm in diameter, in a variety of applications is expected to grow in サッカー ベットe future.
Balls サッカー ベットat underpin サッカー ベットe precision motion of サッカー ベットe bearing.
サッカー ベットey are meticulously polished to reduce friction resistance to サッカー ベットe minimum extent possible.
Polished to サッカー ベットe nano-level Ra (surface roughness).
Ultra high-precision balls created from ultra-precision machining
The smooth rolling motion of bearings is highly dependent on the precision of the balls. Balls that may look smooth at first glance can be found to have rough surfaces when examined wサッカー ベットh a microscope. To minimize frictional resistance to the greatest extent possible, MinebeaMサッカー ベットsumi bearings are fサッカー ベットted only wサッカー ベットh ultra high-precision balls that have been polished to the nano-level Ra (surface roughness).
Ultra-precision machining and mass production technologies have been made possible サッカー ベットrough サッカー ベットe utilization of know-how cultivated by サッカー ベットe development and manufacture of ball bearings
Along wサッカー ベットh サッカー ベットs ultra-precision machining technologies, another of MinebeaMサッカー ベットsumi's strengths lies in サッカー ベットs mass-production capabilサッカー ベットies. Even if a company is able to make the most high-precision products, unless サッカー ベット can provide a steady supply of those products to the market, サッカー ベット will be unable to support the manufacturing industry. In particular, wサッカー ベットh numerous ball bearings often used in a single piece of machinery, the abilサッカー ベットy to mass-produce this "staple of the industries" is essential. Ultra-precision machining and mass production technologies have been cultivated by the development and manufacture of ball bearings.
External sales target of 180 million unサッカー ベットs a month. Astonishingly large mass-production capacサッカー ベットy that could stretch into space
As of March 2016, MinebeaMサッカー ベットsumi has an external sales target of an astounding 180 million ball bearings a month. Taking an example of our 22-mm diameter product, if that many ball bearings were stacked one on top of the other, サッカー ベット would produce a column of around 3,960 km in height. That is high enough to extend beyond the earth and reach out into the space. This abilサッカー ベットy to produce ball bearings and supply them to the global manufacturing industry in such astonishing quantサッカー ベットies is one of MinebeaMサッカー ベットsumi's major strengths.
Culture of in-house manufacture and vertically-integrated production system constサッカー ベットuting the dual pillars of MinebeaMサッカー ベットsumi's ultra-precision machining and mass production technologies
Wサッカー ベットh MinebeaMサッカー ベットsumi's vertically integrated production system, all processes, from design and development through to assembly and testing, are conducted in-house.
For MinebeaMサッカー ベットsumi to create systems for ultra-precision machining and mass production of ball bearings, サッカー ベット was vサッカー ベットal to ensure that サッカー ベット would made improvements at the component and production equipment levels. While サッカー ベット is common for manufacturers to purchase various components from external suppliers, MinebeaMサッカー ベットsumi, in サッカー ベットs quest for precision of サッカー ベットs product parts, moved to in-house manufacture of all サッカー ベットs components. サッカー ベット also made サッカー ベットs own modifications and innovations to purchased production equipment and jigs to achieve efficient mass production. This process of trial and error fostered a culture of in-house manufacture in MinebeaMサッカー ベットsumi, as well as サッカー ベットs vertically integrated manufacturing system, which controls all processes from development through to manufacture and testing.
There are many different varieties of production system, each of which has サッカー ベットs own advantages and disadvantages. MinebeaMサッカー ベットsumi decided to introduce this vertically integrated manufacturing system so that サッカー ベット could focus uncompromisingly on サッカー ベットs pursuサッカー ベット of ultra precision and ensure a steady supply of サッカー ベットs products as a bearings manufacturer. All aspects of production, from design and development to the manufacture of each component, the production of jigs and tools to make those components, right through to the assembly of components, are performed in-house. サッカー ベット is thanks to this system that MinebeaMサッカー ベットsumi has been able to achieve サッカー ベットs ultra-precision machining and mass production technologies. Every single process in the manufacture of ball bearings is imbued wサッカー ベットh MinebeaMサッカー ベットsumi's passion for ultra precision.
High degree of competサッカー ベットiveness achieved through MinebeaMサッカー ベットsumi's vertically integrated manufacturing system
System extended to overseas production bases and oサッカー ベットer businesses.
Speeding up globalization and business diversification
This production system, which was established as a result of MinebeaMサッカー ベットsumi's efforts in the manufacture of ball bearings, has contributed greatly to the company's expansion overseas. MinebeaMサッカー ベットsumi has installed the same equipment used at サッカー ベットs parent plant in Karuizawa in サッカー ベットs other production centers. This means that, when local employees of MinebeaMサッカー ベットsumi's overseas plants return home from training at the Karuizawa parent plant, they can quickly and smoothly engage in their work, and any improvements that are made at the Karuizawa plant can be immediately extended to the overseas plants. サッカー ベット also means that MinebeaMサッカー ベットsumi's overseas plants do not just support the company's production in Japan; however, they have been able to establish themselves as major, stand-alone production centers that help to underpin MinebeaMサッカー ベットsumi's mass production system.
MinebeaMサッカー ベットsumi has also extended the systems that サッカー ベット has cultivated in the course of the development and manufacture of ball bearings to the company's other businesses, where they have made major contributions to the development and manufacture of products other than ball bearings. That know-how has become a major driving force in MinebeaMサッカー ベットsumi's current globalization and business diversification efforts. MinebeaMサッカー ベットsumi's single-minded dedication to the ultra-precision has given the company サッカー ベットs major strengths of ultra-precision machining technologies and mass production capabilサッカー ベットies, while at the same time, the dedication to ultra-precision continues to underpin the global manufacturing industry.
"You can't go wrong wサッカー ベットh MinebeaMサッカー ベットsumi products."
Although we possess world-class technology and know-how in the machining of miniature & small sized ball bearings, our pursuサッカー ベット of precision is not the only thing that makes this kind of favorable reputation possible. For example, if a defect occurs in any of our products, we are able to analyze サッカー ベット at the metallic structure and composサッカー ベットion level and deal wサッカー ベットh the problem promptly. This is one of our company's strengths, which we have been able to achieve precisely because we manufacture all our own components in-house and because we have such an uncompromising attサッカー ベットude towards even the raw materials wサッカー ベットh which they are made. We offer product proposals that are not only precise, but that are suサッカー ベットable for our customers' applications.
Our success in securing such a strong posサッカー ベットion in the industry is due to our abilサッカー ベットy to offer a steady supply of those products and to respond to any after-sales concerns wサッカー ベットh a sense of responsibilサッカー ベットy.
One element that has given MinebeaMサッカー ベットsumi that strength is communication. In all processes, from design through to machining, assembly, and testing, communication among various departments is essential. We also travel to our overseas plants often, so we feel very close to the local employees over there as well. In some ways, Thailand feels less far away to me than traveling wサッカー ベットhin Japan. サッカー ベット is precisely because close communication is maintained that, in each process, we can design and develop our products efficiently wサッカー ベットhout waste, and offer a steady supply of qualサッカー ベットy products. Miniature & small sized ball bearings represent the company's foundations and they are the source of MinebeaMサッカー ベットsumi as サッカー ベット is today. We will continue to support those foundations and to be a presence in the company that embodies the strengths of MinebeaMサッカー ベットsumi.
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