455191 455-191 WASHER OF 2D68E-N3CB-MX

1. Quick Details of  seal 455191:

2. 455191 parts on group :

3. 455191 picture:

4. Service part number :

5. FAQ

Q: What are the material performance features of oil seal kit part number 455191?
A: Part number 455191 adopts nitrile‑butadiene rubber sealing lip and zinc‑phosphate treated steel shell. This material configuration delivers good oil‑resistance and deformation‑resistant capacity under continuous chassis vibration.

Q: What surface appearance can we observe for seal components inside part number 455191?
A: For part number 455191, rubber sealing components show smooth matte black finish, and the metal shell presents uniform silver‑grey anti‑corrosion surface without extra paint coating.

Q: Where is this oil seal kit mounted on the backhoe loader?
A: This seal kit installs inside the front axle hub, sitting between rotating hub shaft and stationary axle housing.

Q: Can this seal keep site mud and splashing water out of axle housing?
A: Yes, the outer mud‑deflecting lip can repel muddy debris effectively, preventing internal lubricant leaking out along rotating rear axle shaft.

Q: What installation advice should mechanics follow during on‑site replacement?
A: Clean and polish shaft surface to remove fine burrs, spread thin uniform grease before pressing‑in; avoid sharp edges cutting sealing lip working surface.

Q: What real‑world benefits does Redicoat treatment bring for steel shell?
A: This coating improves shell bore‑fitting performance and rust resistance, adapting to muddy construction sites with mixed digging and travelling operations.

Q: How will this sealing kit interact with construction‑site lubricants?
A: Nitrile rubber keeps stable dimensional property and low‑swelling rate against transmission gear oil and conveyor bearing grease.

Q: What abnormal conditions indicate oil seals should be replaced?
A: Lubricant leaks out from conveyor drive shaft end, conveyor runs unevenly, periodic scraping noise occurs and drive housing produces obvious over‑heat during paving work.

Q: What risk will scratch damage bring to electrophoretic coated shell?
A: Once the coating layer is scratched off, bare steel will corrode gradually, which may lead to seal loosening and unexpected oil leakage.

Q: How well can this full sealing kit block mud, gravel dust and hot gear oil mist on muddy outdoor road job sites?
A: The multi-layer flexible rubber lip scrapes thick mud off the shaft surface, the fully enclosed plated metal shell blocks coarse dust particles, and inner auxiliary rubber layers isolate high-temperature oil mist to protect internal precision gears.

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