Rubber Sealing HNBR SBR FKM Round Mechanical Gasket

A Round Mechanical Gasket forms a rubber interface between circular mating surfaces. Its fit should be reviewed with the way those surfaces are secured, because an unevenly closing joint can load one sector before the rest of the gasket contacts.

Rubber selection follows the medium, temperature and intended service conditions. HNBR, SBR and FKM represent different compound choices for appropriate designs, with cut or molded forms selected around the required profile. The gasket geometry and material should be considered together rather than substituting one rubber solely because its outline matches.

Check the mating faces for local ridges, debris and alignment before assembly. Locate the gasket without stretching it and follow the joint's specified fastening arrangement. Observe whether the rubber stays within its intended contact path as the faces come together.

Evaluate the completed joint under its required conditions. During maintenance, inspect the removed gasket for an uneven compression pattern and compare that pattern with the hardware positions. Correct a seating problem before fitting a replacement. Do not stack another gasket to hide an uncorrected gap, since that changes the designed space and the way the rubber is loaded.

Material options

HNBR / FKM / SBR. Custom formulation and color for the intended contact conditions.

Hardness selection

Rubber: 30–90 Shore A. Do not stack another gasket to hide an uncorrected gap, since that changes the designed space and the way the rubber is loaded.

Custom dimensions

HNBR, SBR and FKM represent different compound choices for appropriate designs, with cut or molded forms selected around the required profile.

Fit & assembly

Check the mating faces for local ridges, debris and alignment before assembly.

Use & inspection

During maintenance, inspect the removed gasket for an uneven compression pattern and compare that pattern with the hardware positions.

Photos illustrate structure or material only. The gasket geometry and material should be considered together rather than substituting one rubber solely because its outline matches. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.