130-09-11721 1300911721 RING,WIPER OF D75S-2 D50A-18

1. Quick Details of  seal 130-09-11721:

2. 130-09-11721 parts on group :

3. 130-09-11721 picture:

4. Service part number :

5. FAQ

Q: Which construction machinery is part number 130‑09‑11721 oil seal kit designed for?
A: Part number 130‑09‑11721 oil seal kit is produced for bulldozer final drive ring gear assembly disassembly repair and field maintenance.

Q: What raw materials are adopted for making the 130‑09‑11721 oil seal kit?
A: 130‑09‑11721 oil seal kit applies anti‑compression NBR rubber sealing components and anti‑rust galvanized stamped steel back‑up shell.

Q: What core sealing task does this kit accomplish after proper installation?
A: It seals the clearance between ring gear and housing bore, stops gear lubricant leakage and prevents outside dust from scratching ring gear inner tooth surface.

Q: What product category does this spare part belong to?
A: It falls into oil seal kit category, mainly used for final drive carrier on‑site overhaul and reassembly.

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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