Recently the large aperture telescope used bearings with overload, low friction and high accuracy azimuth axis independently developed by Luoyang Bearing Science & Technology Co., Ltd (ZYS) appraised by expert group. Its key technical indicators, such as rotation accuracy, friction torque etc, all come up to the requirement of precision slewing bearings and fully satisfy the main engine. The bearing is in the leading domestic position, filling the gaps in the domestic market.
This bearing with outer diameter of 4 meters has the special structure of double row ball (with different diameters) slewing bearings, requiring for excellent carrying capacity, high precision, low friction torque, reliable sealing and lubrication.
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