... roller bearing,Taper roller thrust bearing.4,Appliance: machine tools,heavy-duty equipment , construction machinery, oil drilling , metallurgy machinery ... ,Mine , sailing.5,Packing : Industrial package.6,Market: Europe,America,Middle East,Asia,etc... 7,Taper roller ... C3 C4 C5Quality StandardISO9001:2000ServiceOEM taper Roller BearingsBearing numbersBoundary dimensions(mm)Basic load ...