silicone rubber bellows flexible rubber hose tube

Silicone rubber bellows use a folded tube form to accommodate a defined change in position between their ends. The custom profile can match the end dimensions and the available installation space. Both the connection geometry and the movement of the folds should be considered before the part is fitted.

Measure the end positions through the intended range of movement. Axial travel, lateral offset, and angular change place different demands on the body. The folds need room to close at the shortest position without being crushed, and the longest position should not pull the ends from their seats.

The attachment method must retain the ends without cutting or excessively constraining the rubber. Keep clamps or adjacent edges away from the portions intended to flex. A tube used as a cover has different operating requirements from one carrying a medium, so any fluid or pressure duty needs evaluation within the completed arrangement.

Choose the precise compound for the contacted substances and temperature. After installation, check that the bellows follow the motion naturally rather than buckling against another component. Routine inspection should include the fold valleys and the transitions into the end sections. Replace a damaged body with matching end dimensions and movement geometry rather than relying on overall length alone.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. Routine inspection should include the fold valleys and the transitions into the end sections.

Custom geometry

The custom profile can match the end dimensions and the available installation space.

Fit evaluation

After installation, check that the bellows follow the motion naturally rather than buckling against another component.

Color & OEM

Custom colors; identification clear of folds and end connections.

Photos illustrate structure or material appearance only. Silicone rubber bellows use a folded tube form to accommodate a defined change in position between their ends. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.