... drift sealing in the drive wheel, track roller and carrier roller can prevent dust from entering the track ... : 3.4engine typeSC8D143G2B1Carrier roller number(each side)2Track number (each side)6Track shoe number(each side)38Track shoe width(mm ... SD22, SD23, SD32, SD42,TY160, TY220, TY230, TY320road roller seriesSR12, SR18, SR20, SR22loader seriesSL30, SL50, SL60undercarriageOur undercarriage parts ...