flexible accordion rubber bellows dust silicone bellows hose

Flexible accordion rubber bellows cover a moving assembly with a folded rubber wall. The custom dimensions should match the attachment points and working length range. The shortest position is especially important because the folds need room to compress without becoming trapped against one another or nearby hardware.

Check the fully compressed and extended positions, together with any sideways movement. The ends should remain located while the body follows the mechanism without twist. A bellows that looks clear at rest may contact a bracket during travel, so assess the entire movement path.

Select the compound for the temperature and substances at the installation point. Fit the cover cleanly and inspect the first folds near each end, where incorrect attachment can restrict movement. Keep debris from collecting between folds during service. A dust-cover construction should not be assumed to function as a pressure hose simply because it has a tubular shape. Any fluid-carrying or pressure role must be established for the specific construction and complete assembly, along with the required movement life.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. Flexible accordion rubber bellows cover a moving assembly with a folded rubber wall.

Custom geometry

The custom dimensions should match the attachment points and working length range.

Fit evaluation

Select the compound for the temperature and substances at the installation point.

Color & OEM

Custom colors; identification clear of folds and end connections.

Photos illustrate structure or material appearance only. A bellows that looks clear at rest may contact a bracket during travel, so assess the entire movement path. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.