Products/O-Ring

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HIGH QUALITY NBR O RING PRODUCTS AND NBR O RING MANUFACTURER

CNL O-ring products, rubber o rings, custom O ring gaskets and seals for OEM

CNL seals is the specialized O-ring manufacturer and rubber o-ring products. O-ring is the most common and economic seals. O ring material:NBR/VITON/FPM/FKM/FFKM/HNBR... Custom molded products and die-cuts. O ring is suitable to use in static and dynamic applications.

CNL O-ring is the best choice and high quality o-rings for static and dynamic applications.

o-ring

O-Ring Types(Custom O-ring Seals / Material)

NBR O-Rings (Nitrile O-Rings/Buna-N O-Rings)

With butadiene, acrylic gel copolymer chemical structure. Nitrile rubber O rings features are oil resistant, water resistant, abrasion resistant, high oil pressure resistant, non-polar solvent resistant.

Operating temperature: –30 to +250 °F

Features and Purpose of NBR O-Rings

Main feature The main purpose
Oil resistant, water resistant, abrasion resistant, high oil pressure resistant, non-polar solvent resistant. Fuel tank、Hydraulic oil、Oyster sauce、Grease、Water...Seals。

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View O Ring Catalog and Prodcuts

O ring Offerings List

P . G . S . V .JASO. JIS Gm . Ss Type O-rings

O-rings are O-shaped cross-section which is made of elastomeric materials.

  • Materials : NBR, HNBR, SILICONE, EPDM, FKM, FFKM, PTFE……and etc.
  • Specialy O-ring specification request : Non-standard size、Hardness、Custon color.

AS568 . METRIC O-Rings

O-rings are O-shaped cross-section which is made of elastomeric materials.

  • Standard size : AS, METRIC
  • Materials : NBR, HNBR, SILICONE, EPDM, FKM, FFKM, PTFE……and etc.
  • Specialy O-ring specification request : Non-standard size、Hardness、Custon color.

O-Ring Size Chart:Standard and Metric.

  • Standard size : AS568, P, Gs, JASO, V, Gm, Metric, Ss.
  • Materials : NBR, HNBR, SILICONE, EPDM, FKM, FFKM, PTFE……and etc.
  • Specialy O-ring specification request : Non-standard size、Hardness、Custon color.
  • *O-ring Sizes:Inside diameter ranges

X-Ring

X-Ring is also known as Quad-Ring. The standard grooves are deeper in comparison with O-ring glands. The four lips emerge more sealing capacity. It will not spiral twist in the groove. The diametrical squeeze is lower than with O-rings to reduce friction to make the life longer. It is used in static and dynamic sealing.

O-Ring Materials-NBR

Best●   Better○    Good△   BadX

Rubber type
(ASTM Abbreviation )
Nitrile Rubber
NBR
Chemical structure Butadiene、Acrylic gel copolymer
Main feature Oil resistant, water resistant, abrasion resistant, high oil pressure resistant, non-polar solvent resistant.
Pure rubber properties proportion
Muni viscosity ML1+ (100℃)
1.00 ∼ 1.20
30 ∼ 100
Physical properties of synthetic rubber Possible JIS hardness range
General temperature range(℃)
Special temperature range(℃)
Tensile strength (kg/cm2)
Elongation (%)
Anti-elastic
Cracking
Wear resistance
Bending resistance
40 ∼ 90
-30 ∼ 100
-50 ∼ 120
50 ∼ 250
800 ∼ 100



Various properties of synthetic rubber lubricating oil Engine oil
Gear Oil
Motor oil
Shaft lubricant
Refrigeration oil
Butter
Lithium oil
Oyster sauce







Working oil Pot shaft oil
Oil + Water emulsion system
Water + Glycol
Phosphate ester
Si
Brake Fluid
Gear oil



X


Fuel oil Light oil、kerosene
Heavy oil
Gasoline


Water Water、Warm water
Water vapor、Hot water
Antifreeze water
Water cutting oil



Drug

Hydrochloric acid 20%
Sulfuric acid 30%
Nitric acid 10%
Caustic soda 30%
Benzene
Trichloroethylene
Alcohol
Vinyl glycerol
Liquid fat
Alcohol
Ether
Ketone (MEK)
Acetic acid、Ethyl ester



X

X
X


X

X ∼△
X
X ∼△
Gas LPG
Urban gas
Ozone
Freon 12
Freon 22




Other

Food Sanitation Law
Vacuum、Atmosphere 10mm kg 
10-4 ~ 10-9



 
The main purpose Fuel tank、Hydraulic oil、Oyster sauce、Grease、Water...Seals。

【NBR O-Rings Manufacturing】Rubber Material Selection Guide

Best Rubber O-Rings Supplier|Custom O-Rings, Gaskets Manufacturer

Static o-ring seals versus dynamic o-ring seals application

The standard of O-ring includes Metric, British and JIS standard with varies sizes. O-Ring seal applications are categorized in terms of relative motion. In a static sealing application there is no movement between mating surfaces. Dynamic seals are used when there is motion between surfaces.
Rubber O-rings is one of the types that is used in static application. Rubber O-rings can also be used in commercial and industrial application. Oil sealing O-ring are utilized for dynamic applications.

Benefits of CNL O-Ring

The products of CNL is high-quality with continuous improvement.

  • We have size of Standard AS568 and JIS.
  • The range of durometer (Shore A) hardness is from 20˚ to 90˚
  • We have large inventories of O-rings and different Tooling set sizes. We can assure short delivery of most sizes in large or small quantities.
  • CNL obtains Standard ISO 9001, we would provide excellent material and stable quality.

Rubber Material Properties Comparison Chart

  • A+:Excellent
  • A:Good to Excellent
  • B:Good
  • C:Fair, can be used if no other materials available
  • D:Not recommended
Properties/Material NBR SI FKM EPDM SBR CR ACM NR CSM IIR PU
Tensile Strength A D A C A A D A+ A C A+
Elongation A A+ D A A A D A+ A A A+
Rebound Resistance A C C A C A+ C A+ C D A+
Tear Resistance A D C C C A D A+ C C A+
Abrasion Resistance A+ D C A A+ A C A+ A A+ A+
Impact Strength Resistance A D C A A+ A+ D A+ A A A+
Gas Impermeability Resistance A D A C C A+ C C A A+ A
Oxygen Resistance C A+ A+ A C A A C A+ A+ A
Ozone Resistance D A+ A+ A+ D A A D A+ A A
Weathering Resistance C A+ A+ A+ C A A C A A+ A
Flame Resistance D A+ A+ A+ C A A D A+ A+ A
Heat Resistance C A+ A+ A+ C A A D A A C
Low Temperature Resistance C A+ A A C C D A C C A
Oil and Fuel Resistance A C A+ D D B A D B D A
Animal and Vegetable Oil Resistance A+ B A+ A C A A+ C A A A
Alcohol Resistance A A A B A A+ A A A+ A B
Alkaline Resistance A D B A C A+ D C A+ A+ D
Acid Resistance A C A A B A C B A A D
Aliphatic-solvent Resistance : Aliphatic A+ D A+ D D A A+ D A D A
Aliphatic-solvent Resistance : Aromatic B D A+ D D C C D C D D
Oxygen Ated-solvent Resistance. D C D A+ A D D A C A+ D
Water Resistance A A A A+ A A D A+ A A+ C

Rubber Material Temperature Character Comparison

Material Standard Temperature Range (°C) Special Temperature Range (°C)
NBR -40∼100 -55∼130
SI -50∼220 -70∼250
FKM -20∼200 -40∼250
EPDM -40∼150 -50∼170
SBR -30∼100 -50∼110
CR -40∼100 -50∼120
ACM -15∼150 -25∼175
NR -40∼70 -40∼110
CSM -30∼120 -25∼150
IIR -50∼100 -60∼130
PU -30∼75 -50∼100
HNBR -20∼150 -40∼175
FVMQ -40∼175 -50∼200
HFKM -20∼200 -20∼275
FFKM -25∼240 -30∼300

【Rubber O-Ring】CNL Custom Capabilities

With CNL manufacturing capabilities, we can deliver custom rubber o-rings and other components that match your unique specifications. CNL Seal will offer you the perfect solution for your o-ring seal's needs.

  • Besides the various sizes of AS568 and JIS Standard with storage of tooling, CNL can produce the O-ring in different material and hardness with quick service.
  • We can provide the material like NBR, SI, FKM, EPDM, PU…etc., which can use in different application and environment.
  • Regarding to the design issues of O-ring which use in static and dynamic applications. Please contact CNL Engineered Seals Division to save the developing time. Please refer the O-ring Installation Recommendation and Working Pressure

【Rubber O-Ring Cord】NBR, Silicone, Viton

CNL stock is O-Ring material, ready to be cut into deferent lengths to create your custom size rubber o-rings. There is a various selection of cross-sections available, and can be cut to any length you need.
Go to Rubber O-Ring Cord

O-Ring Size Chart:Standard and Metric

O-ring Sizes:Inside diameter ranges



O-rings AS-568 / Metric Standard Sizes

O-ring Standard size Type Standard o-ring sizes chart list
Aerospace Size Standard for AS568 O-Rings O-ring AS568 type size list(AS001 ~ AS273)
O-ring AS568 type size list(AS274 ~ AS932)
Metric Standard Sizes-Metric O-Rings O-ring METRIC type size list

【Custom NBR O-Ring Supplier】CNL Rubber General Characteristics

Material Standard Temperature Range (°C) Special Temperature Range (°C)
NBR -40∼100 -55∼130
SI -50∼220 -70∼250
FKM -20∼200 -40∼250
EPDM -40∼150 -50∼170
SBR -30∼100 -50∼110
CR -40∼100 -50∼120
ACM -15∼150 -25∼175
NR -40∼70 -40∼110
CSM -30∼120 -25∼150
IIR -50∼100 -60∼130
PU -30∼75 -50∼100
HNBR -20∼150 -40∼175
FVMQ -40∼175 -50∼200
HFKM -20∼200 -20∼275
FFKM -25∼240 -30∼300

【CNL SEALS】O-Rings Related Informations

CNL SEALS main oil seal product is as follows
  • O-rings and gaskets
  • Back-up ring and X-ring
  • Suction cups, Vacuum cups and Vacuum pads
  • O-ring kits ( best o-ring kits supplier )
  • PTFE encapsulated o-rings
  • O-ring cord ( best o-ring cord supplier )
  • pneumatic seals
  • Standard O-Rings, Gaskets and Molded Rubber Products
  • Vacuum Suction Cups
  • hydraulic seals
  • FKM,FFKM,HFKM,FVMQ,SILICON,NBR,EPDM,PU O-rings

We can produce parts according to clients,request that can apply in many industries such as the following

  • o-ring for automatic facilities
  • o-ring for electric motors
  • o-ring for machinery equipment
  • o-ring for vehicle
  • o-ring for PCB
  • o-ring for TFT
  • o-ring for optical industry
  • o-ring for solar industry
  • o-ring for semiconductor industry
  • o-ring for aerospace industry
  • o-ring for chemical industry
  • o-ring for electronics
  • o-ring for biotechnology
  • o-ring for textile
  • o-ring for construction industry

O-rings F&Q

O-ring sizes?

CNL produces different specification o-rings. Sizes illustrate the inner diameter and cross section. O-ring specification of AS586 type, JIS type, P type, G type, S type, AS type, JASO type, Metric type, Bs type and Park type are available. All products are qualified ISO9001: 2008.

What material is used to make O-rings?

We can produce different kinds of material based on customers' demand, such like NBR, SILICONE, FKM, EPDM, PU, FFKM…… etc. Rubber materials and characteristics please refer to "Rubber Characteristics and Appliocation.

O-Ring Applications?

Electronics Industry, Automobile Industry, Machinery Industry, Electric equipment, Medical equipment, Sports Equipment, Household Items and other Industries rubber parts.

O-Ring Characteristics?

  • Cost-effective
  • O-ring can be reused
  • O-rings require very little room
  • Easy to set-up
  • Static and Dynamic sealing
  • It is common sealing solutions
  • Many sizes available and easy to obtain
  • One piece groove design reduces hardware and design costs
  • Compound material choice for different purpose
  • How O-rings are manufactured?

    Some manufacturing companies inject preheated material, such as rubber, into a mold cavity, in order to create O-rings. The mold cavity is then fitted with a plug on top, enabling to pressure the mold cavity. With pressure increasing inside of the mold cavity, the preheated material takes the shape of the mold cavity.

    How to Select O-ring Size?

    When customers select O rings, they should consider 3 factors:

    Low Friction: The friction coefficient should be low between O rings and the device. That can make o-ring life growth and well abrasion resistance. It will still have a good seal damping effect after wearing.

    Recommended O-ring application service temperature:

    O-rings material may be failure due to high temperature or low temperature, chemical corrosion, vibration, wear and movement. At very low temperatures, almost all engineered materials are hardened and can not be sealed; at very high temperatures, the material may burn or decompose. So we should consider those circumstances to select the material.

    Compression forces and Durability:

    (1) Hardness: The lower hardness and the bigger compression; The higher hardness and the smaller compression. The low pressure will use the softer hardness and otherwise the opposite. (2)Material: The compression set on/about 20%, recommend NBR, EPDM, SILICONE material; The compression set on/about 15%, recommend special FKM, FKM/VITON and PU.

    How to store o-rings?

    Long-term storage of seals can cause physical changes, including hardening, softening, cracking or decomposition. The factors caused are damage, oxygen, light, ozone, temperature, humidity, oil or solvent.

    Rubber Sealing Product related information
    • Fitting with buffer:
      When the suction cups contact to the object, to reduce the force and to compensate the position different between the working objects.
    • Oil Seal:
      Oil seal is also known as metal case and grease seal. To prevent lubricant leakage and to seal other fluids, gases and powdered or granular solids to the machine and vehicle when operation.
    • Customized Part OEM.ODM:
      CNL CNC department can support rapid processing all kinds of sealing products request. Co-operating with clients to develop new products and improving sealing result.

    About CNL Seals Manufacturers/Supplier

    CNL SEALS CO.,LTD. Was established since 1993 and began to provide our sealing products to all clients over the world.

    We are specializing in o rings (o-rings), vacuum cups/pads , oil seals, packings as our major products. In the past years, improving production ability , upgrading technique research and development capabilities are our target.

    CNL takes ISO9001-2015 quality management system to control goods qualifying ASTM、DIN、BS、JIS and SAE international standard.

    CNL CNC department can support rapid processing all kinds of sealing products request. Co-operating with clients to develop new products and improving sealing result.

    CNL_rubberpartsmanufacturer

    Moreover, our material also reachs SGS-ROHS, SGS-REACH and SGS-HALOGEN standard.

    Excellent quality with competitive price is our major service principles. We provied not only stable quality but also on time delivery.

    Advanced production machinery and the continual research and development to earn the good reputation in the industry.

    We are always committed to our customers with consitent quality, best price as well as satisfying service to build up the long-term business.

    qualified the ISO9001:2015;comply with international standards

    All products from CNL factory qualified the ISO9001:2015 and comply with international standards such as ASTM, DIN, BS, JIS and SAE.

     

    compliant with SGS-RoHS, REACH and HALOGEN

    Moreover, all materials CNL used are compliant with SGS-RoHS, REACH and HALOGEN.

    CNL bring in progressive equipments to increase the out put. We also trained staffs professional ability.

    We believe that the professional training will enhance the quality of production, shipping efficiency and services.

    We concerns in materials、production process and quality control strictly.

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