Rubber Elastomer Washers Neoprene Rubber Washers

Rubber Elastomer Washers provide a flexible annular layer between mating parts. The bore needs clearance around the passing component, while the outer edge should remain supported by the intended seating face. Neoprene and other custom rubber choices can be selected for the joint environment.

Check the size of the clamping face relative to the washer. A narrow fastener head can concentrate pressure near the middle while leaving a broad outer region unsupported. Conversely, a bore that is too tight can gather rubber against the passing component before the faces meet. Match the section and dimensions to the actual joint rather than selecting only by outside diameter. Fit the washer flat on a clean surface, and inspect after closure for an edge pushed out of place. During disassembly, look for a cut or strongly uneven flattened region. Correct the supporting geometry before replacing the washer, so a new elastomer part does not merely repeat the same distortion under the same hardware.

Material options

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

Hardness selection

Rubber: 30–90 Shore A. A narrow fastener head can concentrate pressure near the middle while leaving a broad outer region unsupported.

Custom dimensions

Match the section and dimensions to the actual joint rather than selecting only by outside diameter.

Fit & assembly

Fit the washer flat on a clean surface, and inspect after closure for an edge pushed out of place.

Use & inspection

The bore needs clearance around the passing component, while the outer edge should remain supported by the intended seating face.

Photos illustrate structure or material only. The bore needs clearance around the passing component, while the outer edge should remain supported by the intended seating face. ETOL directly manufactures custom-shaped silicone and rubber parts to your requirements.