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bearing size chart (bearing), the mechanical retention mechanism. While other parts in relative motion to each other when the shaft, holding the shaft to the center position and the mechanical control of the movement, it is called FB092 Wrapped Bronze Bus . In ancient China, the configuration on the axle bearings has long been documented. 1279, China's GuoShouJing create simple astronomical instrument, and its role is similar to the modern thrust roller bearings. In 1772, British C. Vallo design and manufacturing bearing suppliers and mounted in a mail coach trial. In 1794, the British made ball bearings P. Worth patent. Mid-19th century, with the progress of the European FZL Aluminum Cage Ball Retainer Bush , lubricants and mechanical workmanship, began to have a fairly complete bearing. In 1881, Germany published on H.R. Hertz contact stress ball bearing papers. On the basis of the achievements of Hertz, the German R. Sweden A.
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| Beitrag vom 28.05.2016 - 08:30 |
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