8T-1790 8T1790 184.15mm aperture two-piece seal of 8U 8SU 8A

1. Quick Details of  seal 8T-1790:

2. 8T-1790 picture:

3. Service part number :

4. FAQ

Q: Does this wear ring adopt split opening design?
A: Yes, it features single oblique split cut for convenient field assembly. Seamless integral type can be customized for special installation requirements.

Q: What materials compose this piston seal ring assembly?
A: It adopts carbon‑filled PTFE as outer sealing sliding ring, paired with NBR rubber energizer to provide steady radial pre‑tightening force.

Q: What color does this combined sealing set present?
A: The PTFE sealing ring is dark grey‑black, while the inner energizer rubber component shows matte black appearance.

Q: Where will this piston seal ring be mounted inside hydraulic cylinder?
A: It is installed into the outer groove of piston body, closely contacting the inner wall of cylinder tube to separate two pressure chambers.

Q: What is its core working performance under bulldozer pushing operation?
A: It blocks cross‑chamber hydraulic oil leakage and maintains stable pressure holding under variable heavy working pressure.

Q: Can this seal withstand frequent pressure surges during heavy‑load earth‑moving tasks?
A: The composite structure absorbs instantaneous pressure spikes and keeps reliable sealing under cyclic pressure impact conditions.

Q: What storage suggestions do you offer for these PTFE sealing accessories?
A: Keep goods in cool, dry warehouse. Avoid persistent high temperature and long-time ultraviolet radiation to slow material aging.

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.

5. Exhibition and Wearhous

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