SBI slewing bearing can simultaneously support larger combined load including axial load，radial load and tilting moment etc。Generally，Slewing bearings with mounting holes，oil holes and sealing apparatus，can meet categories of main machine operating under various different conditions。In addition， Slewing bearings with the characteristics of compact structure，guiding rotation convenient，easy installation and easy to maintenance，are widely applied to large size Slewing equipments in the industries of engineering，mining， metallurgy，wind power generation，vessel，seaport，petroleum，chemical industry，light industry，medical appliance，military industry，robot and aerospace，etc。
SBI SR15/120 refers to single row Four point contact ball Slewing bearing without gear。
material：
Steel ball：GCr15 or GCr15SiMn
Ring：42CrMo or 50Mn，or other special steel
Da：170mm
di：70mm
H：40mm
La：148mm
Li：90mm
n1:6
n2:6
φ1:9
φ2：M8
weight：4.37kg