DHHD four row taper roller bearings takes advantages of design and manufacturing technical process,which keep all moving parts in accurate contact and alignment after installation and has inherent ability to carry on the combintion radial and thrust loads.those bearings can be submitted to the combined load from both radial and axial,axial load capacity is depending on the contact angle,more contact area more axial load capacity. The mainly steel materials for our bearings is normal steel and carbonized steel that requested by customers. The four row taper roller bearings mainly applied in automobile,milling,mining,metallurgy and plastic segments,especially in 4Hi hot strip mill.4Hi sheet cold mill,high-speed 4Hi rolling mill etc. We can supply this kind of bearing in inch and metric types.like TQO,TDI,TQOW,TQOWE,TQIT etc. The bearings we can produce ,the ID from 140 up to 1060mm,or customers requests.