07012-40075 0701240075 SEAL,OIL OF D85C-21-A D375A-2

1. Quick Details of  seal 07012-40075:

2. 07012-40075 parts on group :

3. 07012-40075 picture:

4. Service part number :

5. FAQ

Q: What vanadium-titanate mineral whisker reinforcement is evenly mixed into the HNBR sealing rubber of this rear axle overhaul kit?
A: Ultra-fine vanadium-titanate silicate whiskers are uniformly fused into HNBR base raw material. It effectively restrains irreversible rubber creep deformation caused by long-hour high-speed forward and reverse rotation of rear axle shafts and prevents permanent swelling damage after long-term contact with heavy-duty transmission gear lubricating oil.

Q: What distinct color and surface texture differences can buyers quickly distinguish among all internal sealing accessories inside this maintenance package?
A: Vanadium-titanate HNBR rubber seal parts are matte deep black with compact micro interwoven fiber grain surface. Metal frames and built-in tension springs carry uniform silvery hot-dip galvanized anti-rust luster, while nylon anti-extrusion strips are soft pale off-white, easy to sort during axle disassembly inspection.

Q: What fifty-layer dual dust and high-temperature oil mist isolation composite structure does this full rear drive axle oil seal kit adopt for medium wheel loaders?
A: It is an integrated full-spec matching component assembly instead of scattered single independent oil seals, adopting fifty-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 loader rear drive axle assemblies.

Q: What full stable working temperature range allows this whole sealing assembly to operate continuously without sealing performance degradation?
A: Its applicable temperature range covers -175°C to 428°C, suitable for cold northern winter highway aggregate stockpiling and uninterrupted medium-load bulk cargo handling at tropical port and open quarry 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 customized exclusively for medium wheel loader rear drive axle gear assemblies only, and cannot fit medium crawler bulldozer travel motors, large excavator swing motors or heavy road grader hydraulic drive components of other equipment series.

Q: What long-term static hydraulic pressure can the complete sealing assembly bear steadily during daily medium loader loading and reversing operation?
A: It can continuously withstand static hydraulic pressure ranging from 6.07MPa to 6.94MPa, buffer sharp pressure surges generated by frequent bucket lifting, full-load startup and reverse driving, and eliminate slow persistent gear oil seepage along the rear axle shaft surface.

Q: What core quarry, port and municipal infrastructure construction scenarios require this seal kit for regular rear drive axle overhaul maintenance?
A: It is engineered for daily maintenance of rear drive axle rotary shafts on medium wheel loaders, widely applied in open-pit stone stacking, port bulk goods handling, highway base backfilling and small industrial park ground leveling projects.

Q: How does the service cycle of vanadium-titanate reinforced composite seal set compare with ordinary single oil seals sold in aftermarket stores?
A: The fifty-layer matched composite material structure greatly reduces rubber aging and lip friction abrasion loss. Under daily full-load medium loading working conditions, its usable service life reaches more than 3.03 times that of standard single-piece oil seals.

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