Dongguan Ruichen Sealing Co., Ltd.
TO BE O RING KING
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Black Wear Resistance Most Commonly Used Nitrile 90 Shore Rubber O Ring
1.The O-ring is an annular seal having an O-shaped cross section, the size of which is determined
by the inner diameter ID and the wire diameter CS.
2.O-ring size calculation: outer diameter = inner diameter + 2 x wire diameter (OD = ID + 2x CS).
3.The purpose of using O-ring seals is to prevent leakage and loss of liquids or gases.
4.O-rings are the most commonly used type of seal because of their simplicity, convenience, and
small installation space. As long as the groove design and material selection are correct, and the
operating conditions are within the temperature range of the rubber material, the seal can have a
long-term sealing effect in the static or dynamic seal.
O-ring application range:
O-rings are suitable for mounting on a wide range of mechanical equipment and function in
a static or moving state at specified temperatures, pressures, and in different liquid and gaseous
media. In the machine tools, ships, automobiles, aerospace equipment, metallurgical machinery,
chemical machinery, engineering machinery, construction machinery, mining machinery, petroleum
machinery, plastic machinery, agricultural machinery, and various types of instruments, a large
number of types of seals are applied. element.
O-rings are mainly used for static and reciprocating seals. For rotary motion seals, only for low
speed rotary seals.
O-rings are generally mounted in a groove with a rectangular cross section on the outer or inner
circle to seal.
O-ring seals still have good sealing and shock absorption in oil, acid, alkali, grinding and chemical
corrosion.
Therefore, O-rings are the most widely used seals in hydraulic and pneumatic transmission
systems.
NBR (Nitrile Rubber/Buna-N) material
| Material | NBR(Nitrile Rubber/Buna-N) |
| Advantage | 1,Excellent Abrasion-Resistance,Good Rebound Resistance |
| 2,Good Tensile Strength and Elongation | |
| 3,Excellent Animal and Vegetable Oil Resistance | |
| 4,Good Oil and Fuel Resistance | |
| 5,Good Water Resistance | |
| Disadvantage | 1,Poor Oxygenated-Solvent Resistance |
| 2,Poor Ozone Resistance | |
| Temperature | -40℃-120℃, -50℃-150℃(special formula) |
| Application | 1,Fuel tank, lubricating oil tank and oil in the hydraulic oil, gas, water, silicone grease, silicone oil and other fluid medium rubber parts, especially the sealing parts. |
| 2,It is currently the most widely used, the lowest cost of rubber seals. |
NBR Rubber Features:
Nitrile rubber (NBR, Buna-N) provides excellent resistance to petroleum oils as well as
mineral and vegetable oil. Nitrile rubber also offers strong resistance to heat aging - often
a key advantage over natural rubber.
Nitrile rubber performs well in carburetor and fuel pump diaphragms, aircraft hoses, seals
and gaskets as well as oil-lined tubing. Due to its versatility, nitrile is used in applications
involving not only oil and fuel resistance, but those applications requiring resistance to heat,
abrasion, water, and gas permeability.
For color , we can make as customers' requirements .Below table is the colorful o rings
we made.If you need colored o rings , you can give me color number .
Our Factory
Rui Chen Sealing Co., Ltd was built in 2006, now there are more than 200 staff. The company has two
branches in Guangdong and Jiangxi, They are Dongguan Rui Chen Sealing Co., Ltd. and Shangrao Rui
Chen Sealing Co., Ltd..In recent years, the company has been supported by ShangRao municipal government
and fully enjoy all the preferential policies for economic development zone. We will always take "best quality,
best service" as our mission, and make progress together with you, harmony and mutual win!
Certificates
Progress
FAQ
Q: 1 What kinds of materials can you provide?
A: NBR, EPDM, SILICONE,FKM(FKM),NEOPRENE(CR), HNBR ,NR, IIR, SBR, ACM, AEM,Fluorosilicone(FVMQ),
FFKM etc.
Q: 2 How to select the raw compound for my application?
A: With years of experience working with a variety of material, we can help select the material that will best suit your
needs while keeping material costs in mind.
Q: 3 How long can we get the quote?
A: If your information is complete, we will provide the quotation within 8 hours.
Q: 4 Can you provide samples? Is it free or extra?
A: Yes, we can provide samples for free. Freight can be negotiated.
Q: 5 What is the normal lead time for product orders?
A: If the stock generally takes 3-7 days, mold about 15-18 days, no mold about 25-30 days, depending on the product
situation.
Q: 6 How to check the quality of the bulk order?
A: We have incoming inspection, control the quality of raw materials, process inspection,to ensure the quality of the
production process, shipping 100% of the full inspection; automatic inspection machine full inspection, and according
to customer needs before the mass production of pre-production samples.
Q: 7 What is your standard packing?
A: Plastic bag for inner packing .carton box for outer packing also be packed according to customer's requirements.
Q: 8 What's the payment term?
A: We accept T/T 30% deposit and 70% balance against copy of B/L or L/C at sight, Paypal is also accepted.