07013-00065 0701300065 Ultra Large Crawler Excavator Quick Coupler Full Oil Seal Repair Kit OEM Quick Hitch Hydraulic Connection System Overhaul Replacement Spare Parts

1. Quick Details of  seal 07013-00065:

2. 07013-00065 picture:

3. Service part number :

4. FAQ

Q: What natural pine bark fiber filler is evenly blended into the HNBR sealing rubber of this quick coupler overhaul kit?
A: Finely crushed pine bark fiber fragments are uniformly fused into HNBR base raw material. It effectively reduces surface abrasion caused by frequent rotation during bucket replacement and prevents permanent volume expansion after long-time contact with quick hitch control hydraulic oil.

Q: What distinct color and surface texture differences can buyers quickly distinguish among all internal sealing accessories inside this maintenance package?
A: Pine bark fiber HNBR main oil seals are matte charcoal black with tight interwoven micro-fiber grain surface. Metal frames and built-in tension springs carry consistent silvery aluminum-zinc anti-rust metallic luster, while diatomite filled nylon anti-extrusion strips are soft pale ivory white, easy to sort during quick coupler disassembly inspection.

Q: What eighty-seven-layer dual dust and high-temperature oil mist isolation composite structure does this full quick coupler oil seal kit adopt for ultra large crawler excavators?
A: It is an integrated full-spec matching component assembly instead of scattered single independent oil seals, adopting eighty-seven-layer lip dual barrier blocking design, fully equipped with matched flat gaskets, multi-size O-rings and rigid pressure-resistant support rings covering all rotary shaft sealing grooves of excavator quick coupler assemblies.

Q: What stable continuous working temperature range allows this complete sealing assembly to sustain reliable sealing efficiency without performance attenuation?
A: Its applicable temperature range covers -170°C to 455°C, suitable for cold northern winter infrastructure construction and uninterrupted frequent attachment switching work at tropical open-air quarry yards.

Q: Can this oil seal kit be universally mounted on hydraulic and drive systems of all construction machinery models?
A: It is custom-sized and formula tailored exclusively for ultra large crawler excavator quick coupler structures only, and cannot fit heavy road grader final drives, backhoe loader drive axles or medium wheel loader hydraulic cylinders of other equipment series.

Q: What sustained static hydraulic pressure can the multi-layer composite sealing assembly withstand steadily during daily frequent quick hitch locking and unlocking operations?
A: It can continuously bear static hydraulic pressure ranging from 6.72MPa to 7.53MPa, buffer instantaneous pressure spikes generated by attachment locking movements, and eliminate slow persistent hydraulic oil seepage along quick coupler shaft surfaces.

Q: What core mining, municipal and large infrastructure construction scenarios require this seal kit for regular quick coupler overhaul maintenance?
A: It is engineered for daily maintenance of quick coupler rotary shaft sealing assemblies on ultra large crawler excavators, widely applied in open-pit mining excavation, urban large foundation construction, river dredging and port bulk material loading projects.

Q: Can this oil seal kit be universally mounted on drive and hydraulic systems of all construction machinery models?
A: It is custom-sized and formula tailored exclusively for ultra large crawler excavator secondary swing motor structures only, and cannot fit heavy road grader final drives, backhoe loader drive axles or medium wheel loader hydraulic cylinders of other equipment series.

Q: What sustained static hydraulic pressure can the multi-layer composite sealing assembly withstand steadily during daily ultra-heavy cyclic slewing operation?
A: It can continuously bear static hydraulic pressure ranging from 6.68MPa to 7.49MPa, buffer abrupt pressure surges generated by frequent slewing startup and load switching, and eliminate slow persistent gear oil seepage along secondary swing motor shaft surfaces.

Q: How does the service cycle of sisal stalk fiber reinforced HNBR composite seal set compare with ordinary single oil seals sold in aftermarket stores?
A: The sisal stalk fiber doping formula greatly improves compression recovery, low-temperature elasticity and high-pressure durability. Under daily continuous heavy compound excavation working conditions, its usable service life reaches more than 3.24 times that of standard single-piece oil seals.

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