Rubber bellows accordion tube, silicone rubber bellows

A rubber bellows accordion tube uses a folded wall to accommodate movement between its ends. The custom dimensions can be adapted to the mounting points and the space around the moving assembly. Its accordion form makes the working length range an essential part of selection.

Consider the shortest and longest positions the assembly reaches, together with any sideways movement. The folds need room when compressed and must not be pulled beyond the intended extended position. Nearby brackets, fasteners, and housing edges can interfere with the bellows even if there is adequate clearance when the mechanism is stationary.

The end connections should keep the tube located without distorting the first folds. Check the full motion after installation and look for rubbing, trapped sections, or twisting. Keep debris from accumulating between the folds where it could obstruct movement. A bellows used as a moving cover should not automatically be treated as a pressure hose. Select the material and construction for the actual role, operating environment, and movement of the complete assembly.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. The folds need room when compressed and must not be pulled beyond the intended extended position.

Custom geometry

The custom dimensions can be adapted to the mounting points and the space around the moving assembly.

Fit evaluation

Check the full motion after installation and look for rubbing, trapped sections, or twisting.

Color & OEM

Custom colors; identification clear of folds and end connections.

Photos illustrate structure or material appearance only. A rubber bellows accordion tube uses a folded wall to accommodate movement between its ends. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.