The present disclosure provides a back reamer roller cone that is configured so that the bearings assemblies therein can be relatively easily removed and replaced. Methods of replacing the bearing assemblies in a back reamer are als provided.
申请公布号
WO2013040408(A2)
申请公布日期
2013.03.21
申请号
WO2012US55507
申请日期
2012.09.14
申请人
VERMEER MANUFACTURING COMPANY;MAHER, JOHN, P.;RUNQUIST, RANDY, R.