... 4.satisfactory of qulity,service and price thk kbs iko inch series linear bearing (LMBS20UU)Considered by many to be the default choice ... ,LMF30UU,LMF35UU,LMF40UU,LMF50UU,LMF60UU;LMF…LUU long type flange linear bearing series:LMF6LUU ,LMF8LUU ,LMF10LUU ,LMF12LUU ,LMF13LUU ,LMF16LUU ,LMF20LUU ,LMF25LUU , ... 12×20×24 - LB121928 ZX121928t 12×19×28 - thk kbs iko inch series linear bearing (LMBS20UU)