YDTech® manufacturer of precision four^two^single row tapered roller bearings; supplier of loose multi(four) row roller bearings in china.

four row tapered roller bearings It gathers all the tapered surface top points with one point on the centre line of bearing. the load capability is decided by the cup raceway-angle. we can classify the taper roller bearing as per the rows. the clearance of double and four row tapered roller bearings clearance had been given as per the clients’ requirement before they leave the rolling mill or other factory.

four row tapered roller bearings are used successfully worldwide for rolling mill bearing arrangements where rolling speeds are slow to moderate. Because of their design they are able to take up those axial loads which occur in such applications in addition to radial loads and generally no separate thrust bearings are required in such arrangements.

four row tapered roller bearings, because of their design, must be installed as complete bearings in the chocks. to enable quick roll changes to be made they must therefore have a loose fit on the roll necks. loose fits have the disadvantage that the inner rings wander on their seats under the prevailing load conditions causing wear to the seats which normally have a lower hardness than the rings.

to alleviate the effects of a loose fit to some extent, our bearings have a helical groove in the bore and/or lubrication grooves in the side faces of the inner rings These grooves enable lubricant to be supplied to the contact surfaces of the inner ring and seat. additionally, the grease filled grooves can absorb the wear particles.

types of four row tapered roller bearings