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8F-8861 8F8861 266.06mm inner diameter O-ring seal of 637E 621R 621E 621F

Name: 8F-8861 8F8861 266.06mm inner diameter O-ring seal of 637E 621R 621E 621F
Brand: Guangzhou Opal Machinery Parts Operation Department
SKU: 8F-8861
Price: 0.10 USD
Availability: InStock

Product Details

Place of Origin: China

Brand Name: OUB

Certification: ISO9001

Model Number: 8F-8861

Payment & Shipping Terms

Minimum Order Quantity: 10

Price: Negotiable

Packaging Details: PP Bag Inside.outer is carton with film wrapped.

Delivery Time: Within 5-15 days after getting your desposit

Payment Terms: L/C,D/A,D/P,T/T,Western Union

Supply Ability: 1000Pcs

Get Best Price

Product Details

Product Description

Product Details

Highlight: 
                                                                                                                                                                                                                                                8F-8861 O-ring seal, 266.06mm O-ring seal, 637E 621R O-ring seal
                              

Part No.::	8F-8861	Part Name::	O RING
Machine:	Truck	Material:	NBR
Color:	BLACK	Model:	621B 657E 657B

Part No.::	8F-8861
Part Name::	O RING
Machine:	Truck
Material:	NBR
Color:	BLACK
Model:	621B 657E 657B

Product Description

1. Quick Details of seal 8F-8861:

Part NO.	8F-8861
Machine	truck
Size	266.06mm
Material	NBR
Oil seal type	O RING

2. 8F-8861 picture:

8F-8861 8F8861 266.06mm inner diameter O-ring seal of 637E 621R 621E 621F
3. Service part number :

PART NO.	PART NO.	Part NO.
1672235	2263571	8C5176
7M8485	1T0132	1790464
2287089	2779940	277-9940
617540	4420366	152-3968
335879	1011983	326-7289

4. FAQ

Q: What is part number 8F-8861?
A: Part number 8F-8861 is an o-ring sealing component specially designed for excavator pilot control valve fitting joints.

Q: Which construction equipment can the 8F-8861 o-ring be used for replacement?
A: The 8F-8861 o-ring is made for low-pressure sealing points of the excavator pilot hydraulic control valve.

Q: What practical merits does nitrile rubber have for this pilot circuit o-ring?
A: It delivers steady elastic recovery and keeps good compatibility with low-pressure pilot hydraulic fluid.

Q: What core sealing duty does this o-ring complete on the pilot valve fittings?
A: It seals the connection joints to stop pilot oil leakage and maintain stable pilot signal pressure.

Q: Where is this o-ring commonly mounted on the excavator pilot system?
A: It fits into the small circular grooves of pilot valve pipe adapters and quick-connect fittings.

Q: Can this o-ring keep reliable sealing when the operator triggers frequent pilot commands?
A: Yes, it can adapt to frequent pressure fluctuations generated by continuous control movements.

Q: What bad factors will bring early aging and failure of this nitrile rubber o-ring?
A: Tiny dust particles trapped in the groove and excessive stretching during installation will wear the seal easily.

5. Exhibition and Wearhous

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