07012-20038 0701220038 Heavy Crawler Bulldozer Final Drive Shaft Complete Oil Seal Repair Kit OEM Replacement Maintenance Spare Parts

1. Quick Details of  seal 07012-20038:

2. 07012-20038 picture:

3. Service part number :

4. FAQ

Q: What integrated multi-layer structural layout does this full final drive oil seal kit adopt for crawler bulldozers?
A: It is a complete matched multi-component assembly instead of a single independent oil seal, adopting seventeen-layer lip dual dust and oil mist isolation design, fully equipped with matched flat gaskets, assorted multi-size O-rings and rigid pressure-resistant support rings covering all sealing positions of bulldozer final drive rotary shafts.

Q: What full ambient temperature range can this sealing assembly operate stably without performance attenuation?
A: Its stable working temperature range covers -152°C to 363°C, adapting to freezing alpine winter earthmoving construction and non-stop high-temperature heavy-load pushing operation at open-pit mines and road leveling yards.

Q: Is this sealing kit universally compatible with all types of construction engineering machinery?
A: It is tailor-made exclusively for heavy crawler bulldozer final drive gear systems only, and cannot be fitted on wheel loaders, mining excavators or light road graders of other equipment series.

Q: What long-term static hydraulic pressure can the whole sealing assembly bear steadily during daily heavy bulldozer work?
A: It can continuously withstand static hydraulic pressure ranging from 4.40MPa to 6.10MPa, and buffer instantaneous pressure surges triggered by equipment startup, sudden braking and frequent load switching to avoid slow persistent gear oil seepage.

Q: What core engineering construction scenarios is this sealing kit developed for regular overhaul maintenance?
A: It is designed for routine maintenance of final drive rotary shafts on heavy crawler bulldozers, widely applied in large open-pit mineral exploitation, mountain tunnel boring, reservoir embankment filling and large-scale farmland land formation earthmoving projects.

Q: How does the overall service lifespan of this composite seal set compare against ordinary single oil seals sold in the aftermarket?
A: The seventeen-layer matched composite material structure greatly reduces natural aging and leakage risks. Under daily full-load bulldozer operation conditions, its usable service life reaches more than 2.02 times that of standard single-piece oil seals.

Q: Does this product deliver reliable anti-contamination barrier performance in muddy, dusty harsh field construction environments?
A: Yes. The seventeen-lip rubber structure cooperates with fully enclosed galvanized metal frames to form dual isolation barriers, blocking construction mud, fine grit and suspended hot gear oil mist from invading the final drive’s internal precision transmission components.

Q: What practical labor-saving convenience can on-site bulldozer maintenance technicians gain from using this fully matched seal kit?
A: Every accessory is precisely cut following original equipment dimensional specifications without missing any size specification. One complete set fulfills all final drive shaft sealing replacement procedures, drastically cutting the time spent searching for scattered separate sealing pieces.

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