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tsubaki08131technical articles

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The beginnings of so many a technique still used today rich indeed to the time before Anno Domini back as this example shows: What have invented at that time for easy scooping water our ancestors, was so awesome that it's become indispensable in modern drive technology. The talk is part of the chain that the Japanese TSUBAKIMOTO Group has developed into a high-tech drive element pateniert several times and still has determined some developments going on.

The first record of chains dates back to the year 225 before Christ. It is a kind of bucket elevator chain, which consists of metal rings, which was used for water scooping. In the 16. In the 19th century, Leonardo da Vinci made technical sketches of chains designed for power transmission using bolts and tabs. However, it took several centuries before the concept was implemented efficiently. Problems in steelmaking and its further processing delayed the development until the 19. Century, in which new technologies offered the possibilities.

tsubaki08132One of the first patented bolt chains was then used in bicycles. It comes from the French André Galle and is still known and available under the name Gall chain. In addition to other chain variants revolutionized especially in the late 19. Century the book chain the chain market. It stood for a longer life than the bolt chain from Gall, as the bush as a kind of bearing better protected the bolt from wear. From this point on, chain development progressed rapidly. Steel chain links were used in bicycles, in the stern drives of early automobiles and as a propeller drive in the aircraft of the Wreight brothers. Soon followed the introduction of the roller chain, which offers many applications in the drive and conveyor technology.

Laying the foundation stone

In the year 1917 the Japanese company Setsuzo Tsubakimoto Shoten laid the foundation stone for today's Tokyo-listed global corporation TSUBAKIMOTO CHAIN ​​Co., also known as TSUBAKI for short. Initially still primarily engaged in the production of bicycle chains, TSUBAKI attracted attention early on due to its high production quality. Soon the company developed and produced larger and more powerful chains, which were used in marine engines. Thus, the reorientation from a pure bicycle chain manufacturer to a manufacturer of high-quality industrial chains took place.

TSUBAKI's research and development team today employs 200 engineers in the main drive chain plant in Kyotanabe. Here, the experience accumulated over the decades and the changing requirements from practice have been incorporated in the further and new development of the chains since the beginning. Thus TSUBAKI has been developing innovative, environmentally friendly products for drive technology for decades.

Patented chain examples

tsubaki08133An example is the "GT4 Winner" roller chains gem. DIN 8187 standard, which already exists in its fourth generation. Due to the continuous development in power transmission by means of high static and dynamic load capacity, easy mounting by patented countersunk riveting and the long service life thanks to patented lubrication grooves, TSUBAKI offers a high-quality standard roller chain, which has no equal in its characteristics.

As a second example, the maintenance-free "Lambda" chain is now being built on the standard roller chain in the seventh generation. The special sintered bushes, which are vacuum-impregnated with lubricant, enable a long service life in applications in which relubrication is not possible or desired. The lambda chain stands for a clean operation without product contamination.

The third of many examples completes all the good things: If corrosion protection is required for chains in the external or salt water area, the "NEP" chain made of carbon steel offers the same performance as the GT4 Winner roller chain with additional corrosion protection.

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