NOTICE: Happy New Years! Our Customer Service Department will be closed Tues & Wed, Dec 31 and Jan 1.
Toughest Brands   |  Unbeatable Support

O-rings

O-rings are mechanical gaskets designed to be seated in a groove. The seat of the ring allows it to be compressed during assembly to create a seal. O-rings are a necessary component of your compressed air system

Sort
Sort

Filter By

Filter By
  • All
  • Air Filter Parts (2)
  • Parts (2)

Brand

Brand
  • All
  • Chicago Pneumatic
  • Nano

Price

Price
  • All
  • $0-25
  • $25-100

Ingersoll Rand Seal Replacement – 39311519

SKU: 39311485
$191.00
View Details

Kaeser O-Ring Replacement – 5.5202.0

SKU: 5.5202.0
$25.50
View Details

O-Ring Kit For Ingersoll Rand Air Compressors 89323075

SKU: 89323075
$86.00$69.00
View Details
Live Sales Engineers Available

Our Professionals are ready to help you with your technical questions backed by decades of experience.

Low Interest Financing

When lenders compete, making smart equipment decisions is easy.

Price Match Guarantee!

Found it cheaper somewhere else? no worries, we will make sure you get the best deal on your new equipment.

O-Rings For Compressed Air Sealing

The main reason behind using an O-ring is to ensure your compressed air stays sealed inside. They are used in both static and dynamic applications. Dynamic applications include but are not limited to rotating pump shafts and hydraulic cylinder pistons. Static applications of O-Rings are focused on gas sealing in compressed air operations.  

O-rings are one of the most common seals used in compressed air because they are inexpensive, easy to make, reliable, and have simple mounting requirements. The maximum recommended pressure of an O-ring depends on the seal’s hardness, material, cross-sectional diameter, and radial clearance.

The O-ring is one of the oldest pieces of technology in compressed air systems, having been introduced to market at the beginning of the 20th century. Its simplicity and reliability have made it virtually irreplaceable. They are widely used across many industries, especially compressed air. 

O-Rings Prevent Leaks

No matter the size or quantity of your O-rings, the basic form and function will be consistent. They are shaped like a classic donut or torus to improve the seal between two components. 

These components’ main goal and function is to prevent the unwanted release of compressed air. This makes them basically a gasket, just with a much higher pressure rating than standard cork, paper, or rubber gaskets. O-rings can handle higher pressures than traditional gaskets, making them perfect for compressed air.

Due to their similarities, you would use an o-ring the same way you would a gasket. The o-ring sits in a specifically designed groove, although this groove is universal to the geometry of o-rings. Once settled into the groove, it is compressed between two components to create the seal.

While under pressure, the o-ring will shift in the groove toward the lower-pressure portion of the seal. This forces the seal against the inner and outer walls, which can improve the seal to a certain point. This behavior is beneficial until it isn’t. It is not ideal to put your o-ring under more pressure than it is rated for; too much pressure can result in the deformation of the seal and the reintroduction of leaks. 

Additional Keyword Information

O-rings are very commonly found in pumps, cylinders, connectors, and valves. They help seal joints between separate parts and prevent fluids and gases from leaking. They’re used with static, dynamic, hydraulic, and pneumatic components, making them an incredibly versatile solution to a widespread engineering issue.

Check out our parts request form if you struggle to find a specific part. If we don’t have the product you need, we will try to get it.

Filter Products

Sort

Filter By

Filter By
  • All
  • Air Filter Parts (2)
  • Parts (2)

Brand

Brand
  • All
  • Chicago Pneumatic
  • Nano

Price

Price
  • All
  • $0-25
  • $25-100