Four row tapered roller bearings is composed of two double row inner rings and one double row outer ring consisting two single outer rings. Between two inner rings,there is one inner spacer.
Among these three outer rings, two central spacer is furnished,which can be used to adjust clearance.When borne by heavy radial load,it can bear simultaneously axial load in two different directions.But its allowed speed is not much,which is mainly used for roller bearing of rolling mill.In recent years,four row tapered roller bearing with double face is manufactured and gradually used in different industries.
Precision Bearing China
Small sized bearing of this kind in generally made by bearing steel.For large sized one,it is made by carburizing steel.For extremely large sized one,it is made consisting hollow roller and support cage to enlarge its service life.
Tolerance and clearance
Its tolerance is P0 generally.Bearing with much more high level tolerance can be tailored according to client's requirements.During assembly, its clearance shall be adjusted according to adjustment specification and bearing manufacturing agreement(or standard clearance if there is no manufacturing agreement). After operating a certain period,client can readjust clearance.Please consult with SATA technical service department for clearance adjustment method.