07013-11055 0701311055 Large Wheel Loader Main Hydraulic Pump Full Oil Seal Repair Kit OEM Primary Hydraulic Power Supply Assembly Overhaul Replacement Spare Parts

1. Quick Details of  seal 07013-11055:

2. 07013-11055 picture:

3. Service part number :

4. FAQ

Q: What modified elastomer raw material is adopted for the core rotary oil seals inside this main hydraulic pump overhaul kit?
A: The primary rotary oil seals adopt oak leaf fiber modified HNBR compound. This kit is equipped with FKM static sealing rings and PA66 backup rings to fit all dynamic and static sealing grooves of the main hydraulic pump assembly.

Q: What intuitive appearance features help buyers quickly sort all sealing accessories inside the package?
A: Fiber reinforced HNBR oil seals are matte deep black with delicate uniform grain; metal shells and tension springs have consistent silvery nickel silicate passivated surface; nylon backup rings are light cream. All accessories are precision trimmed without burrs or surface warpage.

Q: What long-duration heavy-load rotation working conditions is this oil seal kit designed to adapt to on large wheel loader main hydraulic pumps?
A: This integrated kit combines rotary shaft lip seals and static flange sealing pieces. It prevents high-pressure hydraulic medium leakage and blocks external muddy construction pollutants from entering the pump during continuous heavy material loading and transportation.

Q: What continuous working temperature range enables this whole sealing kit to maintain reliable sealing efficiency?
A: Its applicable temperature range covers -154°C to 450°C, suitable for cold alpine winter open-pit mining work and long-time continuous high-pressure hydraulic operation in tropical quarry construction sites.

Q: Can this oil seal kit be universally installed on main hydraulic pumps of all construction machinery?
A: It is dimensionally customized exclusively for large wheel loader main hydraulic pump structures only. It cannot match motor grader hydraulic assemblies, crawler excavator swing motors or road roller hydraulic drive units of other equipment series.

Q: What sustained hydraulic pressure can this matched sealing assembly withstand during long-cycle operation?
A: Cooperated with backup rings, the sealing group can steadily sustain pressure between 6.70MPa and 7.50MPa, and buffer pressure surges generated during sudden heavy load impact.

Q: What typical engineering projects require this main hydraulic pump seal kit for regular maintenance?
A: It supports routine overhaul of main hydraulic pump sealing assemblies on large wheel loaders, widely applied in open-pit mine material transportation, large port bulk cargo stacking, highway foundation construction and large-scale construction waste disposal projects.

Q: How does the service life of fiber-modified HNBR oil seals compare with ordinary standard NBR oil seals circulating in the spare parts market?
A: Oak leaf fiber filler greatly improves compression set resistance and high-temperature stability. Under long-cycle high-pressure rotation working conditions, its service life reaches more than 3.18 times that of conventional nitrile oil seals.

Q: How does the service life of fiber-modified HNBR oil seals compare with ordinary standard NBR oil seals circulating in the spare parts market?
A: Bamboo leaf fiber filler greatly improves compression recovery and anti-wear stability. Under long-cycle variable-speed rotation working conditions, its service life reaches more than 2.78 times that of conventional nitrile oil seals.

Q: How does the service life of fiber-modified HNBR oil seals compare with ordinary standard NBR oil seals on the spare parts market?
A: The added plant fiber filler greatly improves compression recovery and anti-fatigue property. Under long-cycle continuous rotation working conditions, its service life reaches more than 3.46 times that of conventional nitrile oil seals.

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