Custom molded protective silicone rubber bushing

A protective silicone rubber bushing can provide a compliant interface within a recessed bore. The available depth and surrounding shoulder determine how the bushing is supported and how it can be fitted. A part that matches the opening diameter may still stop too early or disappear beyond the intended accessible position.

Custom dimensions, hardness and color allow the profile to follow the receiving component. Define the inside passage and outside engagement separately, considering what will pass through or sit within the bushing.

During installation, check that the bushing reaches its planned seat without folding along the recessed wall. Inspect the passage after the inner component is fitted, since outside compression can change its shape. Removal access should also be considered during development. Avoid using a sharp tool against the silicone to compensate for a profile that cannot be reached. If the bushing repeatedly tears during service, review the recess depth and handling method together with the rubber geometry.

Material options

Silicone. Custom formulation and color for the intended contact conditions.

Hardness selection

Silicone: 20–80 Shore A. A part that matches the opening diameter may still stop too early or disappear beyond the intended accessible position.

Custom dimensions

Custom dimensions, hardness and color allow the profile to follow the receiving component.

Fit & assembly

During installation, check that the bushing reaches its planned seat without folding along the recessed wall.

Use & inspection

If the bushing repeatedly tears during service, review the recess depth and handling method together with the rubber geometry.

Photos illustrate structure or material only. A part that matches the opening diameter may still stop too early or disappear beyond the intended accessible position. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.