Tower crane slewing bearing

We supply the slewing bearing ring/slewing bearing/slewing ring to a wide range of excavators, a replacement slewing bearing ring/slewing bearing/slewing ring used on Komatsu, Hitachi, Kobelco, Caterpillar, Hyundai and so on. Below is the normal number we can supply the geared ring/slewing bearing/slewing ring bearing . Manufacturer of slewing ring bearing  Have passed ISO 9001-2000 Quality Certificate  200mm to 4000mm in diameter  OEM accept     1)Slewing rings are usually used for low revolution while shaking and strained with an enormous axial force, moment and in some parts with radial force simultaneously. 2) Mainly Products 1.  Four-point contact ball slewing ring 2.  crossed roller slewing ring 3.  Double-row ball slewing ring 4.  Three-row roller slewing ring 5.  Light Flanged Slewing Ring 6.  Trailer Turntable   3)Consequently the requirements for loading are stricter than ordinary bearings. If the selection of the bearing has been wrong it will cause a great damage. Hence it is necessary to evaluate the exact forces acting on the slewing ring and to select the suitable slewing ring.   4) Application: Construction Machinery (Cranes, Excavators, Loader, Scraper) Heavy Equipments ( Mining equipment, Marine equipment) packing machinery metallurgical machinery Wind power Field Military products.   5) Material: 50Mn,42CrMo or 42CrMo4v         Once you inquiry, I will get back to you very soon.