... sealing in the drive wheel, track roller and carrier roller can prevent dust from entering the track system, as well as ... (stere)S: 3.7 A: 3.4engine typeSC8D143G2B1Carrier roller number(each side)2Track number (each side)6Track shoe ... , TY230, TY320road roller seriesSR12, SR18, SR20, SR22loader seriesSL30, SL50, SL60undercarriageOur undercarriage parts for the track machinery equipments like excavator ...