| Performance characteristic: the bearing adopts compact unit design, the radial clearance and axial clearance have been matched according to the standard, and the installation need not be readjusted. Bearing in manufacturing plants have been required to fill the special high speed railway bearing grease, when assembled without adding grease are provided with sealing cover to prevent leakage of grease and prevent external impurities and dirt in. Bearing speed 300km/h, the use of ambient temperature -40 degrees ~40 degrees, the use of temperature rise is not greater than 70 degrees, bearing maintenance cycle of 5 years, design life is greater than 3 million km. |
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