... series.TypeSingle-row taper roller bearing,Double-row taper roller bearing,Four-row taper roller bearing,auto bearing,Machine-tool bearing,Construction bearing ,Heavy-duty bearing ,tapered roller bearing ,taper roller thrust bearing ... /10, 12749/10, 12749/11, 11749/102) ISO9001 certificate3) Inch taper roller bearings are generally used to support combined load mainly consisting of ...