... Size Interchangeable with industry standards & with “Simplicity” series•Low Coefficient of Friction•Heat treated alloy steel shell• ... stock as follows:LMF…UU flange linear bearing series:LMF6UU,LMF8sUU,LMF8UU,LMF10UU,LMF12UU,LMF13UU,LMF16UU, ... series:LMF6LUU ,LMF8LUU ,LMF10LUU ,LMF12LUU ,LMF13LUU ,LMF16LUU ,LMF20LUU ,LMF25LUU ,LMF30LUU ,LMF35LUU ,LMF40LUU ,LMF50LUU ,LMF60LUU;LM4UU LME4UU circular square ...