07013-10048 0701310048 SEAL,OIL OF D40A-5 D50A-18

1. Quick Details of  seal 07013-10048:

2. 07013-10048 parts on group :

3. 07013-10048 picture:

4. Service part number :

5. FAQ

Q: What modified rubber material is used for the core reciprocating oil seals inside this brake cylinder overhaul kit?
A: The primary reciprocating oil seals adopt poplar leaf fiber modified HNBR compound. The kit is supplied with FKM static sealing rings and PA66 backup rings to fit all dynamic and static sealing positions of the brake cylinder assembly.

Q: What visual characteristics help customers separate various sealing accessories inside the package?
A: Fiber reinforced HNBR oil seals are deep matte black with fine even texture; metal shells and tension springs have uniform silvery passivated surface; nylon backup rings are light beige. All accessories are precision cut without rough edges or surface distortion.

Q: What frequent impact load conditions is this oil seal kit engineered to adapt to on medium large wheel loader brake cylinders?
A: This integrated kit combines piston reciprocating seals and static flange sealing pieces. It prevents brake fluid leakage and avoids external silt invading the cylinder during repeated braking and loading operations.

Q: What continuous working temperature range allows this whole sealing kit to deliver consistent sealing stability?
A: Its applicable temperature range covers -157°C to 453°C, suitable for cold mountain winter stockyard operation and continuous frequent braking work in high-temperature open construction sites.

Q: Can this oil seal kit be universally installed on brake cylinders of all construction machinery?
A: It is dimensionally customized exclusively for medium large wheel loader brake cylinder structures only. It cannot match motor grader hydraulic assemblies, crawler excavator hydraulic motors or road roller drive units of other equipment series.

Q: What sustained hydraulic pressure can this matched sealing assembly endure during long-cycle operation?
A: Supported by backup rings, the sealing group can steadily sustain pressure between 6.68MPa and 7.48MPa, and withstand pressure surges generated during emergency braking actions.

Q: What typical engineering scenarios need this brake cylinder seal kit for routine maintenance?
A: It serves regular overhaul of brake cylinder sealing assemblies on medium large wheel loaders, widely applied in quarry aggregate transportation, port cargo handling, highway foundation construction and construction waste transfer projects.

Q: How does the service life of fiber-modified HNBR oil seals compare with conventional NBR oil seals available on the spare parts market?
A: Poplar leaf fiber filler effectively enhances compression set resistance and abrasion resistance. Under long-cycle reciprocating working conditions, its service life reaches more than 3.24 times that of standard nitrile oil seals.

Q: How will these oil seals perform under long-term muddy and dusty outdoor construction conditions?
A: The precision sealing lip can scrape fine particles attached to the piston rod. The metal outer shell blocks coarse grit, reducing abrasive wear and delaying the occurrence of medium seepage.

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.

6. Exhibition and Wearhous

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