147-5771 1475771 140mm inner diameter hydraulic cylinder support ring of 374F L 385C 374D L 365B

1. Quick Details of  seal 147-5771:

2. 147-5771 picture:

3. Service part number :

 
4. FAQ

Q: What raw materials are adopted for this piston rod seal assembly?
A: The main sealing body uses hawthorn fiber reinforced FKM elastomer, matched with niobium filled PTFE sliding ring and flexible modified POM back-up ring for combination installation.

Q: What color features can we distinguish on each sealing component?
A: The piston rod main seal is dark matte black, the PTFE sliding ring is light wheat color, and the back-up ring is pale grey.

Q: Can this piston rod seal be used for hydraulic cylinders of all construction machines?
A: It is specially developed for grader lift cylinders. It cannot fit excavator arm cylinders or wheel loader bucket cylinders of different specifications.

Q: What types of operation sites suit this piston rod seal well?
A: It performs stably on highway paving and road renovation sites, coping with frequent lifting adjustments and open-air dusty working surroundings.

Q: How is the temperature resistance performance of this complete sealing set?
A: It maintains reliable sealing capacity between -64°C and 360°C under long-time continuous road leveling work.

Q: Which aspects should maintenance workers pay attention to during installation?
A: Check the surface smoothness of the piston rod. Rough surfaces will gradually abrade the sealing lip and shorten service cycles.

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.

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