07013-00062 0701300062 Ultra Large Crawler Excavator Rotary Coupler Full Oil Seal Repair Kit OEM Multi-Path Hydraulic Rotary Connection Overhaul Replacement Spare Parts

1. Quick Details of  seal 07013-00062:

2. 07013-00062 picture:

3. Service part number :

4. FAQ

Q: What natural reed leaf fiber filler is evenly blended into the HNBR sealing rubber of this rotary coupler overhaul kit?
A: Refined reed leaf fiber fragments are uniformly incorporated into HNBR base material. It reduces surface abrasion caused by continuous low-speed bidirectional rotation and avoids permanent swelling after long contact with multi-channel hydraulic transmission fluid.

Q: What visual color and texture differences can customers quickly identify among all sealing accessories inside this kit?
A: Reed leaf fiber HNBR main seals are matte dark black with fine interwoven micro-fiber texture. Alloy plated metal shells and tension springs show uniform silvery nickel-tin anti-corrosion luster, while sericite filled nylon back-up rings are light ivory, convenient for classification during disassembly work.

Q: What eighty-six-layer dual dust and high-temperature oil mist barrier structure is adopted for this full rotary coupler oil seal kit for ultra large crawler excavators?
A: This is an integrated matched component set instead of separate individual seals. It adopts eighty-six-layer lip double barrier design, equipped with matched gaskets, multi-size O-rings and pressure-resistant support rings suitable for all shaft sealing grooves of rotary coupler assemblies.

Q: What working temperature range enables this complete sealing assembly to maintain stable sealing performance continuously?
A: Its applicable temperature range covers -173°C to 454°C, suitable for cold mountain winter mining and continuous heavy earthmoving work at high-temperature coastal open construction yards.

Q: Can this oil seal kit be installed universally on hydraulic and drive systems of all construction machinery?
A: It is dimensionally and formula customized only for ultra large crawler excavator rotary coupler structures. It cannot be applied to road grader final drives, backhoe loader axles or medium wheel loader hydraulic cylinders of other machine models.

Q: What steady static hydraulic pressure can the multi-layer composite sealing assembly withstand during daily frequent slewing and material transporting work?
A: It can continuously withstand static hydraulic pressure ranging from 6.70MPa to 7.51MPa, ease sudden pressure fluctuations brought by frequent flow switching, and avoid slow hydraulic oil leakage along the coupler shaft surface.

Q: What typical engineering projects require this seal kit for regular rotary coupler maintenance?
A: It is designed for routine overhaul of rotary coupler shaft sealing assemblies on ultra large crawler excavators, widely used in open-pit bulk mineral mining, coastal land reclamation, large reservoir construction and port foundation excavation projects.

Q: How does the service life of reed leaf fiber reinforced HNBR composite seals compare with ordinary single oil seals available on the spare parts market?
A: The reed leaf fiber modified formula effectively improves wear resistance and compression recovery capability. Under long-term continuous heavy cyclic working conditions, its service life reaches more than 3.30 times that of standard single oil seals.

Q: How effective is this full sealing kit at blocking mud, mineral dust and suspended hot hydraulic oil mist in long-term open-air mining and coastal construction environments?
A: The outer flexible rubber lip scrapes mud and fine mineral particles off the shaft surface. The enclosed alloy-plated metal housing blocks coarse dust, and inner multi-layer rubber structure isolates high-temperature oil mist to protect internal flow passage components.

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 -175°C to 453°C, suitable for cold alpine region large-scale mining construction and uninterrupted ultra-heavy slewing excavation work at tropical open-air quarry yards.

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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