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Quick Details

  • Standard or Nonstandard: Nonstandard
  • Style: O Ring
  • Material: Rubber
  • Place of Origin: Hebei, China (Mainland)
  • Brand Name: STO/STO
  • Model Number: standard and non standard, AS568 BS806 DIN3771 GB3452.1-92
  • color: red,yellow,green,black,grown
  • size: ANY
  • material: NBR, FPM, SI, EPDM
  • standard: standard and non- standard sizes are available
  • sample: available
  • delivery: 10-20 days
  • brand: STO/ACD
  • Production volume: 600,000 pcs each day
  • hardness: 25-90shore

Packaging & Delivery

Packaging Details inner 50 or 100 pcs /plastic bag, outer in carton package
Delivery Time 20 days or as per the order

mechinary rubber sealing viton o ring/o - ring  :  


High quality O ring, rubber ring


1. All of the process are done in our factory from rubber raw material to finished o ring,

    and we use the  best raw material to assure the quality.

2. With strict inspection before shipment, have professional QC team.

3. All kinds of material O ring are available such as  NR, CR, NBR, SBR, VITON, SILICON, HNBR, PU etc.

4. Delivery time will be assured.

5. Stable supply ablility.

6. Small quantity order is acceptable.

7. Professional technician team, advanced production technology, Perfect management system  

    to assure the qualified quality, delivery time and customer's maximum benefit.


Our Factory


1. ISO Certificated, and 16949 Certificated

2. Over 15 years experience in this line

3. Have our own STO and ACD Brand

4. Over 3,0000 molds in our factory

5. About 600,000 pcs released per week

6. Attend Canton Fair and  Automechanika Shanghai(AMS) every year.



Our products sell very well at home and abroad with good reputation.

We are now keeping regular customers from Asia, Southeast Asia, Africa,

and we are now have our own brand oil seal distributor in Pakistan.


OEM or ODM also welcome! If any enquiry on oil seals, plz feel free to contact us!!



Rubber oil seals


1. oil seal Material: NBR, SILICONE, VITON, HNBR, CR, PTFE, EPDM, etc.


2. Types : TC, TB, TA, SC, SB, SA, VC, VB, VA, KC, KB, KA, DC, DB etc




4.Size:from 4mm shaft diameter to 300mm shaft diameter and different design.


Wear Resistancevery goodmoderatemoderatevery goodmoderategood
High Temperature Oil Resistancemoderategoodvery goodvery goodgoodgood
max 100Cmax 150Cmax 200Cmax 200Cmax 150Cmax 200C
Low Temperature-40C-30C-50C-25C-40C-80C
Oil Resistancegoodgoodmoderatevery goodgoodextremely good





We have more than 3000 different kinds of molds of products; they are including oil seals, seals set, seals kit, TC oil seal, double lip oil seal, auto oil sealmotorcycle oil seal, TCM oil seal, NOK oil seal, CFW oil seal, CFW  rubber oil seal, silicone rubber seal ring, metal seal, compressor seal, PU seal, PTFE seal, rubber seal ring, KACO seals, Arm seal, and so on.

If you want more technical parameters please feel free to contact us.

Your success is our business. 


Main Products as follows: 


Production lines / Warehous / Factory photo: 



 Packing Forms:




 Factory Certificates:



Fairs and Exhibitions Attending



Warmly welcome customer all over the world to visit our factory and do great business with us for mutual profit.

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China (Mainland) | Manufacturer, Trading Company
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