SINOCMP SH120-3 Swing Motor Seal Kit

This swing motor seal kit is engineered for the Sumitomo SH120-3 series hydraulic excavators. The kit contains seals manufactured from polyurethane (PU), polytetrafluoroethylene (PTFE), nitrile butadiene rubber (NBR), and iron components to withstand high-pressure hydraulic fluid and prevent leakage in the swing drive motor assembly. Key shaft seal dimensions include an inner diameter of 70 mm, outer diameter of 95 mm, and height of 13 mm. The material composition provides an operating temperature range of -40°C to 250°C and compatibility with hydraulic system pressures up to 34.6 MPa. Direct replacement for OEM swing motor seal requirements on specified Sumitomo models.