China is one of the world's earliest invention of the rolling bearing , in ancient China , the structure has long been documented about the axle bearings . And data from archaeological seen , China 's oldest Rolling bearing structure with a modern prototype , appeared in 221 BC - 207 BC ( Qin ) is now Shanxi Yongji County Xue Cliff Village . After the founding of New China , especially since the seventies of the last century , a strong push in the reform and opening up , the bearing industry has entered a new period of rapid development of high quality .
In the seventeenth century, British C. Vallo design and manufacture of ball bearings, and mounted in the car to try and British postal P. Wirth made ball bearings patent. Eighteenth century German publication on HR Hertz contact stress ball bearings papers . On the basis of the achievements of the Hertz , Germany , Sweden, Glenn A. Pam , who have done a lot of experiments, the development of design theory and rolling bearing fatigue life calculations contributed. Subsequently, the Russian NP Petrov apply Newton 's law to calculate the viscous friction bearings .
O. Renault UK were found to Thor mathematical analysis , Reynolds equation is derived , from laying the foundation for hydrodynamic lubrication theory. The early form of linear motion bearings , is placed in a row in a row of wooden skid plate . This technique may be able to be traced back to the time of the construction of the Great Pyramid of Giza , although there is no clear evidence. Modern linear motion bearings using the same kind of works, but sometimes with the ball instead of rollers. The first sliding and rolling element bearings are made of wood . Ceramic , glass or sapphire also used , steel, copper, other metals, plastics ( such as nylon , bakelite , Teflon and UHMWPE) have been widely used.
From heavy-duty vehicle axle and spindle to precision watch parts, many occasions need to rotate the bearings. The simplest is a sleeve bearing swivel bearing , it's just a clip in the bush between the wheels and axles . This design was subsequently Rolling alternative is to use a lot of cylindrical roller bushings replace the original , each rolling element as a separate wheels. Rolling with the earliest practical investment cage is clockmaker John Harrison in 1760 for the production of H3 Chronographs and invention.
Aboard a Roman ship found in Italy nano lake , discovered early examples of ball bearings . This wooden ball bearings are used to support the rotating desktop. The ship was built in 40 BC . It is said that Leonardo da Vinci around 1500 on a ball bearing had been described . Ball bearings of various factors in the immature , a very important point is that a collision will occur between the ball , causing additional friction. But you can put the ball into a small cage to prevent this phenomenon.
17th century, Galileo on a "fixed ball" or " caged ball" ball bearings done earliest descriptions. But then a long time, has not been achieved in the bearing mounted on the machine . The first patent on the ball of the channel is Carmarthen Philip Vaughan acquired in 1794 .
Aligning ball bearings
In 1883, Friedrich Fischer proposed the use of suitable production machine grinding the same size , roundness accurate idea of the ball . This laid the foundation for the creation of an independent bearing industry . "Fischers Automatische Gußstahlkugelfabrik" or the initials "Fischer Aktien-Gesellschaft" later became a trademark , registered in the July 29, 1905 .
In 1962 , FAG trademark has been modified and still in use , and in 1979 became an integral part of the company .
1895 , designed by Henry Timken tapered roller bearings first three years after obtaining a patent and established Timken Company .
In 1907, Sven temperature Qwest SKF bearing factory designed the first modern self-aligning ball bearings.
Shanghai Ding Man Industrial Co., Ltd. focus on product quality and customer needs , all bearings are used in high-quality objects , type more , you can select a different brand bearings based on your personal preferences and needs, your needs , we are long-term pursuit of quality first , service excel .
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