225pc O-Ring Assortment Kit - Metric - NBR

NBR stands for Nitrile Butadiene Rubber, a synthetic rubber known for its excellent resistance to oils, fuels, and moderate temperatures.

NBR O-rings are suitable for many common pressure applications, but their effectiveness also depends on the groove design and the specific pressure rating. For extremely high-pressure systems, specialized O-rings or backup rings might be required.

Yes, NBR O-rings generally have good resistance to hot water up to their operating temperature limit of 125°C.

Measure the diameter of the groove and the shaft it will seal on, or the diameter of the port. Compare these measurements to the dimensions listed for each O-ring size in the kit to find the closest match. Always refer to your equipment's service manual for specific O-ring size recommendations.

When stored properly in a cool, dark, and dry environment away from ozone, NBR O-rings can have a long shelf life, typically several years. However, actual longevity can vary based on storage conditions.

Typically, O-rings in assortment kits are not individually marked. You will need to refer to the product's included size chart or measure the O-ring to determine its dimensions.

Ensure the correct size O-ring was selected and is seated properly in its groove. Check for any debris or damage on the mating surfaces. Verify the O-ring material is compatible with the fluid and temperature of the application.

The application may exceed the NBR material's temperature or chemical resistance limits. Re-evaluate the operating conditions and consider an O-ring made from a more suitable material (e.g., Viton, EPDM) if necessary.

The selected O-ring might be slightly too large or the groove may have sharp edges. Ensure the O-ring is not forced into place, which could cause damage. Light lubrication with a compatible lubricant can sometimes aid installation.