The single row four point contact ball slewing bearing is composed of two seat rings, which design in compact structure and light weight, steel ball contact with the circular raceway at four point, it can bear the axial force, radial force and the tilting moment at the same time.

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????,?????,??????????,??????1250mm,?????40mm,????????,????????:???? QWC1250.40A JG/T 66-1999 

JG/T66-1999(JJ36.1-91) ????

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