Rubber Bellow Tubes Soft Silicone Rubber Bellows

Soft silicone bellows form flexible rubber bellow tubes that can be custom molded for the intended assembly. The end dimensions, fold geometry and overall length should suit the intended assembly and movement. Softness should be selected with those features so the body can move without an uncontrolled fold or excessive stretch.

Check the tube at its closest and farthest end positions, then examine any bending between them. A soft bellows may need clearance beside the assembly as well as along its length. The surrounding hardware should not pinch a fold or force the tube against a sharp edge.

Choose the finished silicone formulation for the actual contact and environmental conditions. Fit the end regions without twisting the body, and verify the movement after nearby components are installed. During maintenance, inspect for a persistent crease, rubbed ridge or damage near an attachment. Clean with a compatible method and remove debris between folds. If the same region repeatedly collapses or abrades, review geometry and clearance before selecting a softer replacement.

Material options

Custom silicone compound; formulation and geometry developed together.

Hardness selection

Silicone options: 20–80 Shore A. The surrounding hardware should not pinch a fold or force the tube against a sharp edge.

Custom geometry

The end dimensions, fold geometry and overall length should suit the intended assembly and movement.

Fit evaluation

Fit the end regions without twisting the body, and verify the movement after nearby components are installed.

Color & OEM

Custom colors; identification clear of folds and end connections.

Photos illustrate structure or material appearance only. The end dimensions, fold geometry and overall length should suit the intended assembly and movement. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.