3960060450 Loader Sealing Ring for ZW310-5A

The original sealing ring (part number 3960060450) is a genuine sealing component of Hitachi ZW310-5A wheel loader, mainly used for dynamic/static sealing of hydraulic systems, transmission systems, or pipelines of this model. ZW310-5A is a 31 ton wheel loader from Hitachi Construction Machinery, typically equipped with a Cummins QSM11 engine (rated power of 236 kW), a hydraulic torque converter gearbox, and a 29.4 MPa hydraulic system. The universal number 3960060450 of this sealing ring is its unique identifier in Hitachi's original accessory system, ensuring complete matching with the size of the host sealing groove, medium compatibility, and operating requirements. When placing an order, it is necessary to provide the complete model and serial number of the loader for verification to avoid mismatches.

This product is an O-ring or oil seal commonly used in construction machinery. It may be made of nitrile rubber (NBR), fluororubber (FKM) or polyurethane (PU). It has excellent hydraulic oil resistance, high temperature resistance (about ‑ 40 ° C to+150 ° C), pressure resistance (usually ≥ 30MPa) and anti-aging resistance. Its structural design needs to meet the long-term reliable sealing requirements of the loader in high-pressure, high-frequency vibration, dusty, and temperature difference changing environments, such as for use in oil cylinder piston rods, valve block interfaces, pump/motor shaft seals, and other parts. The inner diameter, cross-sectional diameter, hardness, and compression permanent deformation rate of the original sealing ring have undergone strict matching tests to ensure that the sealing integrity can still be maintained under system pressure fluctuations.

It is recommended to check the sealing ring for signs of hardening, cracking, deformation, wear, or leakage every 500 hours of work or every quarter. When replacing, thoroughly clean the installation contact surface and sealing groove, remove the old ring residue and oil stains, and use the original 3960060450 pieces. During installation, avoid twisting, stretching, or cutting, and tighten evenly according to the torque and sequence specified in the maintenance manual. Daily storage should be kept in a cool and dry environment with sealed rings, avoiding contact with sharp tools, strong solvents, and long-term direct sunlight. Regular maintenance can effectively prevent oil leakage, system contamination, and component wear, ensuring stable operation and service life of equipment.