What are the advantages of O-type rubber sealing ring?

O-type rubber sealing ring is a kind of sealing ring with circular cross section, which is widely used in various mechanical equipment and plays a sealing role in certain temperature, pressure and different liquid or gas media. Compared with other sealing rings, it has the following advantages:

① The sealing part has simple structure, compact installation part and light weight.

(2), with self-sealing function, often only need to seal once to complete the sealing effect.

③ Good sealing performance, almost no leakage when used as a fixed seal, and only partial leakage when used as a dynamic seal at high speed.

(4) Motion friction resistance is very small, which can adapt to the occasion of alternating pressure.

⑤ The size and groove have been standardized, with low cost, easily available products and convenient use and outsourcing.

Compared with other sealing rings, there are three problems:

(1), high friction resistance when starting.

(2), used as the seal of pneumatic device, must add lubricating oil, to prevent wear.

③ The machining dimensions and accuracy of coupling parts, such as moving surface, groove and clearance, are very strict.