07012-20035 0701220035 SEAL (K2) OF S6D155-4A S6D155-4B

1. Quick Details of  seal 07012-20035:

2. 07012-20035 parts on group :

3. 07012-20035 picture:

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5. FAQ

Q: What innovative mixed mineral fiber is added to the core sealing rubber of this bulldozer repair seal set?
A: Vanadium-zircon silicate fiber is compounded into modified NBR base rubber. It effectively restrains irreversible rubber creep deformation under long continuous forward and reverse rotation of bulldozer final drive shafts and avoids permanent swelling damage after long-term contact with heavy-duty gear lubricant.

Q: What obvious visual color differences can purchasers distinguish among all accessories inside this full overhaul kit?
A: All rubber sealing fittings are matte deep grey-black with fine woven fiber texture on the surface. Metal skeleton and built-in tension spring show uniform silver metallic sheen, while nylon anti-extrusion support strips are soft milky white, easy to separate during bulldozer transmission assembly.

Q: What overall integrated structural design is adopted for this full final drive oil seal kit dedicated to crawler bulldozers?
A: It is a complete matched multi-component assembly instead of a single independent oil seal, adopting sixteen-layer lip dual dust and high-temperature oil mist blocking design, fully equipped with matched flat gaskets, various size O-rings and rigid pressure-resistant support rings to cover all sealing positions of bulldozer final drive rotary shafts.

Q: What full range of ambient temperatures can this sealing assembly run stably without performance loss?
A: Its stable working temperature range spans -151°C to 361°C, adapting to freezing alpine winter earthmoving construction and uninterrupted high-temperature heavy-load pushing operation at open-pit mines and road leveling yards.

Q: Can this sealing kit be universally installed on all types of construction engineering machinery?
A: It is specially customized only for heavy tonnage crawler bulldozer final drive gear systems, and cannot be matched with wheel loaders, mining excavators or light road graders of other equipment series.

Q: What long-term static hydraulic pressure can the whole sealing assembly withstand steadily during daily heavy bulldozer operation?
A: It can continuously bear static hydraulic pressure from 4.35MPa to 6.05MPa, and buffer instantaneous pressure spikes caused by equipment startup, sudden braking and frequent load switching to prevent slow persistent gear oil leakage.

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