O-ring, also known as a packing, or a toric joint, is a mechanical gasket in the shape of a torus; it is a loop of elastomer with a round cross-section, designed to be seated in a groove and compressed during assembly between two or more parts, creating a seal at the interface.

The O-ring may be used in static appliions or in dynamic appliions where there is relative motion between the parts and the O-ring. Dynamic examples include rotating pump shafts and hydraulic cylinder pistons.

O-rings are one of the most common seals used in machine design because they are inexpensive, easy to make, reliable, and have simple mounting requirements. They can seal tens of megapascals (thousands of psi) of pressure.

Products name:komastu rubber nbr70 nbr90 nbr oring seal for hydraulic and pneumatic

Material:NBR, FKM, silicone, EPDM, FFKM, FEP/FPA, PTFE

Color:Black or other

The appliion and performance:
Double acting seals, the sealing effect is achieved by the deformation of the section of the O-Rings, and the deformation is determined by the depth of the installation groove. Under pressure, the O-ring has a large surface tension like liquid, used for static sealing more. It is only recommended for better conditions in dynamic appliions. System lubriion, pressure, temperature, sealing clearance, speed, medium and surface quality of metal parts determine the service life of O-Rings. It is not recommended if the lubriion is not sufficient during rotary motion.

Pressure:0~5MPa

Temperature:-30℃ +100℃

Speed:2m/s

Medium:Hydraulic oil, fire retardant liquid, water and others

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FAQ

Q1: Is the price fixed?

A: The price needs to be determined according to the specifiions and quantity required by the customer, whether there is packaging customization, etc. Please send us an inquiry. We promise to provide the most appropriate price and service. We are committed to establishing long-term cooperative relations with our customers and insisting on win-win cooperation.

Q2:Can I receipt my fabric reinforced rubber seal door to door?
A: Yes, Express like DHL, FedEx etc.

Q3: How to pay?
A: T/T , Paypal. Western Union or Other online payment. Please inform us in time after payment.

Q4: Are you trading company or manufacturer?

A:We are trading company and we also have our own factory to produce seals.With more than 20 years of PU manufacturing experience.

Q5: How long is your delivery time?

A: Generally it takes 5days if we have stock.

Otherwise it takes about 10-15days depending on the qty.

Q6:What is your main products ?

A:We are specialized in the excavator spare parts, such as control valve ,hydraulic pump, center rotary , travel motor, swing motor, cylider, hydraulic break seal kit and other repair kits. If you need other excavator parts, we also can supply as your requirements.

Q7:What is your standard packing?

A: All the goods will be packed by carton box. Special packing method can be accepted when needed.

You can reach me by gmail or WhatsApp :+8613650826584

Guangzhou OUB Machinery Equipment Co.,Ltd since its inception in 2004, has been engaged in hydraulic seals business of excavators, loaders, bulldozers,breaking hammers and other seals have in-depth study. Through more than 15 years of efforts, OUB has accumulated a large number of domestic, imported excavators and broken hammer seal data, and for new products and new models of seals data constantly updated, finishing and perfect. After more than 10 years of practical inspection, product quality is stable and reliable, has accumulated rich experience and good reputation, with long-term cooperation at home and abroad friends and customers, "take care of the equipment,improve the efficiency and honesty" concept won the customers at home and abroad highly recognized and widely praised.
In the future, we will continue to maintain a rigorous scientific attitude, to maintain a professional, precise style of work, and strive to become the best supplier of Chinese seal repair kits, look forward to your cooperation!