1. General: Our company manufactures various kinds of slewing bearing for different applications, such as stacker reclaimed, lade turret, offshore crane, medical equipments, engineering machinery, mineral machinery, windmill, steel mill, etc. The types we produce include: Single-row four-point contact ball slewing bearing; Double-row four-point contact ball slewing bearing; Three-row cylindrical roller slewing bearing; Crossed cylindrical roller slewing bearing; Crossed taper roller slewing bearing; Ball and cylindrical roller slewing bearing 2. Bearing materials: Inner and outer rings: GCr15(SAE52100, 100Cr6), 45# (C45), 50Mn, 42CrMo(42CrMoV); Seal: NBR, VITON; Cage: Nylon, steel, brass, AL; Grease: Ca+ base, Li+ base grease (Such as Shell, Kluber, Chevlon etc. -- We can use the grease as per customer's instructions); Packaging: Plywood case, plywood pallet, iron pallet. 3. Documentations: We record the complete documentations for tractability. Raw material certification; Forging part certification; Heat treatment certification; Hardness values report; Ultrasonic testing; Rolling part (ball/ roller) certification; Seal physical and chemical testing; Cage certification; Process flow records; Final dimensional report. Blue band and wooden cases