O-rings are one of the most common types of seals because they're inexpensive, reliable and have simple mounting requirements. Since they are known as one of the most important elements of machine design, o-rings may be used in static applications, where little range of motion is required. O-rings may be used in dynamic applications, like rotating pump shafts and hydraulic cylinder positions, also.
1 - The material selection of o ring
Material: NBR, FKM, EPDM, VMQ, FFKM, FFKM, CR etc.
2 - The hardness selection of o ring
The hardness of o ring is related to the pressure. The normal hardness is 70 shore a and the anti pressure property is 10mpa. 80 shore a is 15mpa. 90 shore a is 25mpa. Other hardness are also available.
3 - The size selection of o ring
Measure the ID and C/S and inform us so we can offer the price to you.