ZYS large-size heavy duty precision bearings are manufactured in our second industry park,which covers 133,333㎡ with total investment of 438 million RMB.
We have a large number of precision and advanced equipments to guarantee the precision and quality of our products,such as CNC vertical lathes,CNC gear shapers,high-speed CNC cutting machines,high-speed CNC drilling machines,CNC hardening machines and imported CNC vertical grinders,etc.

Our slewing bearings have been applied to excavators,boom conveyors,offshore crane,tower crane,floating crane,mobile crane,railway crane and other kinds of cranes.
China’s largest slewing bearings for marine crane was born in ZYS.This bearing is three-row cylindrical roller slewing bearing with OD up to 6.82m and 24 tons.Our unique design and accurate calculation analysis guarantee the safety and reliability of using this bearing in marine crane,which meet the standard of China classification society and are recognized by our customer.