154-63-52173 1546352173 U-PACKING OF D80A-12 D85P-18

1. Quick Details of  seal 154-63-52173:

2. 154-63-52173 parts on group :

3.  154-63-52173 picture:

4. Service part number :

5. FAQ

Q: What materials compose this piston seal ring assembly?
A: The main sealing ring adopts birch fiber reinforced HNBR, matched with carbon filled PTFE wear slide ring and flexible modified POM back-up ring for assembly use.

Q: What color features can be found on different components of this sealing set?
A: The main piston seal ring is matte black, the PTFE sliding ring is light beige, and the supporting back ring presents pale grey.

Q: Can this piston seal ring fit hydraulic cylinders of all construction machinery?
A: It is specially designed for bulldozer steering cylinders. It cannot be used on loader lift cylinders or excavator bucket cylinders of different specifications.

Q: What construction working environments suit this piston seal ring?
A: It adapts to open-air earthmoving sites and mining yards, coping with frequent steering adjustments and dusty working surroundings.

Q: How is the temperature adaptability of this whole sealing assembly?
A: It keeps stable sealing performance within -71°C ~ 362°C and maintains good tightness under continuous low-speed reciprocating movement.

Q: What preparation work should technicians complete before installation?
A: Clean the inner wall of the cylinder thoroughly. Tiny metal debris will scratch the sealing surface and reduce the service life greatly.

Q: What hydraulic issues can this piston seal ring effectively avoid?
A: It prevents internal hydraulic oil leakage inside the cylinder and avoids seal distortion caused by pressure differences on both sides of the piston.

Q: What advantages does birch fiber reinforced HNBR have compared with ordinary nitrile rubber?
A: It has outstanding compression recovery performance and friction resistance, suitable for long-term reciprocating motion inside steering cylinders.

Q: What engineering projects commonly require replacement of this piston seal ring?
A: It serves routine maintenance of hydraulic cylinder piston sealing assemblies on medium crawler excavators, widely used in urban infrastructure, highway subgrade construction, small quarry loading and residential foundation excavation projects.

6. Exhibition and Wearhous

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