07012-50065 0701250065 SEAL,(F2320-53A0 -15 ) OF D21P-8E0 GD675-3A

1. Quick Details of  seal 07012-50065:

2. 07012-50065 parts on group :

3. 07012-50065 picture:

4. Service part number :

5. FAQ

Q: What silica-titanate mineral whisker filler is blended into the HNBR rubber of this grader final drive overhaul kit?
A: Purified fine silica-titanate whisker fragments are evenly fused into PU base material. It effectively restrains permanent rubber creep deformation caused by long-time low-speed reciprocating rotation of final drive shafts and avoids irreversible swelling after long contact with heavy-duty transmission gear oil.

Q: What obvious color and surface texture differences can buyers quickly distinguish among all internal sealing accessories inside this maintenance package?
A: Silica-titanate HNBR main oil seals are matte dark black with dense woven micro-fiber grain surface. Metal frames and built-in tension springs have uniform silvery galvanized anti-rust luster, while nylon anti-extrusion strips are soft pale off-white, easy to separate during final drive disassembly inspection.

Q: What fifty-eight-layer dual dust and high-temperature oil mist isolation composite structure does this full final drive oil seal kit adopt for heavy road graders?
A: It is an integrated full-spec matching component assembly instead of scattered single independent oil seals, adopting fifty-eight-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 grader final drive assemblies.

Q: What stable full working temperature range allows this whole sealing assembly to maintain steady sealing efficiency?
A: Its applicable temperature range covers -168°C to 424°C, suitable for cold northern winter highway trimming and continuous long-hour airport ground leveling work under high-temperature open-air construction yards.

Q: Can this oil seal kit be universally installed on transmission drive systems of all construction machinery models?
A: It is custom-sized and formula tailored exclusively for heavy road grader final drive gear assemblies only, and cannot fit super heavy wheel loader rear drive axles, large excavator swing motors or backhoe loader bucket cylinders of other equipment series.

Q: What long-term static hydraulic pressure can the complete sealing assembly bear steadily during daily full-load road grading operation?
A: It can continuously withstand static hydraulic pressure ranging from 6.04MPa to 6.90MPa, buffer sudden pressure surges generated by frequent grader forward and reverse leveling, and eliminate slow gear oil seepage along the final drive shaft surface.

Q: What core municipal and airport construction scenarios require this seal kit for regular final drive overhaul maintenance?
A: It is designed for daily maintenance of final drive rotary shafts on heavy road graders, widely applied in municipal road reconstruction, highway pavement finishing, airport apron leveling and mountain rural road expansion projects.

Q: What stable full operating temperature range allows this whole sealing assembly to work continuously without sealing performance degradation?
A: Its applicable temperature range covers -180°C to 435°C, suitable for frigid northern winter highway aggregate stockpiling and uninterrupted super-heavy bulk goods handling at tropical coastal port and mine yards.

Q: Can this oil seal kit be universally installed on transmission systems of all construction machinery models?
A: It is custom-sized and formula tailored exclusively for super heavy wheel loader rear drive axle gear assemblies only, and cannot fit medium crawler bulldozer travel motors, large excavator swing motors or road grader hydraulic drive assemblies of other equipment series.

Q: What maximum instantaneous linear rotation speed of rear axle shaft can this oil seal assembly withstand without lip curling and abrasion damage?
A: The copper-titanate reinforced elastic lip can adapt to continuous rotary speed up to 1.3m/s, steadily strip sticky mud and gravel on the shaft surface, and avoid early failure from long-term high-speed friction.

Q: What core coastal logistics and large infrastructure construction scenarios require this seal kit for regular rear drive axle overhaul maintenance?
A: It is designed for daily maintenance of rear drive axle rotary shaft sealing assemblies on super heavy wheel loaders, widely applied in open-pit mineral stockpiling, seaport bulk container cargo transfer, highway aggregate yard operation and large industrial park ground backfilling projects.

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