170-9849 1709849 Buffer seal of 365B L 365B

1. Quick Details of  seal 170-9849:

2. 170-9849 picture:

3. Service part number :

 
4. FAQ

Q: What materials are used to manufacture this piston rod seal assembly?
A: The primary sealing body adopts cherry fiber reinforced HNBR elastomer, matched with tungsten filled PTFE wear-resistant ring and tough modified POM backup ring for assembly.

Q: What color differences can be seen among all sealing components?
A: The main rod seal is low-gloss charcoal black, the PTFE supporting ring is pure off-white, and the anti-extrusion ring presents soft light grey.

Q: Can this piston rod seal be installed on hydraulic cylinders of different engineering machines?
A: It is specially produced for excavator travel motor cylinders. It cannot be fitted on grader lift cylinders or wheel loader bucket cylinders of different specifications.

Q: What working conditions are suitable for this hydraulic piston rod seal?
A: It works steadily in muddy construction sites and mountain mining areas, adapting to continuous forward and backward travel movement and silt erosion.

Q: How about high and low temperature resistance of this whole sealing set?
A: It maintains reliable sealing effect between -72°C and 370°C during long-time uninterrupted driving operation of excavators.

Q: Which details should maintenance staff focus on during installation work?
A: Protect the sharp sealing lip from scratches. Even tiny blemishes will trigger gradual hydraulic oil leakage after equipment starts running.

Q: What common hydraulic faults can this piston rod seal effectively reduce?
A: It restrains external oil leakage and prevents permanent extrusion deformation caused by frequent pressure surges in travel circuits.

Q: What advantages does cherry fiber reinforced HNBR have compared with ordinary nitrile rubber?
A: It possesses excellent dynamic abrasion resistance and elastic recovery, suitable for continuous reciprocating motion of travel motor cylinders.

Q: What practical efficiency benefits can on-site excavator maintenance staff gain from using this fully pre-matched rod seal kit?
A: All supporting sealing accessories required for rod overhaul are pre-assembled into one complete set without separate procurement. Technicians do not need to carry scattered loose seals or repeatedly measure rod groove dimensions on site, greatly shortening cylinder repair time.

5. Exhibition and Wearhous

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