Offer OEM and Design services Buyer label offered Delivery in time Material : 50Mn , 42CrMo slew ring , swing ring External gear slewing rings ----2 rows of ballsVE050B01 , VE061B00 , VE086B03 , VE098B00 , VE108B03VE114B00 , VE120B12 , VE120B01 , VE120B00 , VE122B00VE129B00 , VE138B05 , VE138B04 , VE147B01 , VE147B03VE160B04 , VE160B00 , VE163B01Internal gear slewing rings--- 2 rows of ...