07012-20058 0701220058 Light Medium Crawler Bulldozer Final Drive Shaft Complete Oil Seal Repair Kit OEM Replacement Maintenance Spare Parts

1. Quick Details of  seal 07012-20058:

2. 07012-20058 picture:

3. Service part number :

4. FAQ

Q: What special whisker mineral additive is blended into the core sealing rubber of this bulldozer overhaul kit?
A: Vanadium-titanium silicate whiskers are evenly distributed into modified NBR base rubber. It effectively slows down irreversible rubber creep deformation generated by long-period forward and reverse rotation of final drive shafts and avoids permanent swelling deformation after long-time contact with heavy-duty gear lubricant.

Q: What intuitive color and texture differences can buyers distinguish among all internal accessories inside this maintenance kit?
A: All rubber sealing parts are matte dark ash black with fine woven fibrous texture on the surface. Metal frames and built-in tension springs show uniform silver galvanized anti-rust luster, while nylon anti-extrusion strips are soft milky white for easy classification during bulldozer transmission assembly.

Q: What innovative multi-layer dual blocking structural design does this full final drive oil seal kit adopt for light medium crawler bulldozers?
A: It is a complete matched multi-component assembly instead of separate single oil seals, adopting twenty-two-layer lip dual dust and high-temperature oil mist isolation design, fully equipped with matched flat gaskets, multi-size O-rings and rigid pressure-resistant support rings covering all rotary shaft sealing positions of bulldozer final drive gear systems.

Q: What full ambient temperature range can this sealing assembly operate steadily without performance loss?
A: Its stable working temperature range covers -159°C to 376°C, suitable for freezing plateau winter earthmoving and continuous light-load pushing work at tropical sand yards and rural road construction sites.

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

Q: What long-term static hydraulic pressure can the whole sealing assembly withstand steadily during daily light bulldozer operation?
A: It can continuously bear static hydraulic pressure ranging from 4.75MPa to 6.45MPa, and absorb sudden pressure fluctuations caused by cold startup, emergency braking and frequent load conversion to avoid slow persistent gear oil leakage.

Q: What mainstream construction projects require this sealing kit for regular maintenance overhaul?
A: It is designed for daily routine maintenance of final drive rotary shafts on light medium crawler bulldozers, widely used in small sand mine excavation, rural mountain road reconstruction, small reservoir embankment filling and farmland consolidation earthmoving projects.

Q: How does the service life of this composite seal set compare with ordinary single oil seals sold in aftermarket stores?
A: The twenty-two-layer composite matching structure greatly reduces rubber aging and lip abrasion loss. Under daily full-load bulldozer working conditions, its usable service life exceeds 2.23 times that of standard single-piece oil seals.

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