Essential transmission components for machinery which needs a relative rotation and bears axial force, radial force and toppling movements at the same time between two parts of the machinery. They are mainly used for excavators, wind power, tower cranes, truck cranes, crawler cranes, and also widely used in engineering machinery, construction machinery, port machinery, metallurgical machinery, light industry machinery, environmental protection machinery, engineering vehicles, solar energy, wild power, etc. Slewing ring ball or cylindrical roller bearings which can accommodate axial, radial and moment loads acting either singly or in combination and in any direction. They are not mounted on a shaft and in a housing; the rings, which are simply bolted on the seat surface are available in one of three executions ?without gears ?with an internal gear ?with an external gear. SBI Slewing Ring Bearing : 1.High load-carrying capability 2.Ability to accept the combined loads;axial, radial and tilting moments 3.Flexibility with product design. 4.42CrMo/50Mn material be used to make slewing ring bearing SBI Slewing Ring Bearing Specification: 1.Bearing Dimensions rang from OD300 mm to OD 5000 mm 2.Can be provided with gearless, internal gear or external gear 3.Can be proveded with internal /external flange. 4.Ball or crossed roller slewing ring bearing design. 5.Single row, double-row, trip-row slewing ring bearing design 6.Lubrication holes 7.Preload options are available as well as variations in clearance