Suspension bellows

Suspension Maintenance: Air Suspension Bellows for Heavy-Duty Vehicles

In this section of the catalogue, we provide a wide range of air suspension bellows, critical components to ensure stability, safety, and driving comfort in industrial vehicles. These pneumatic parts are responsible for absorbing road irregularities and maintaining the correct chassis height, protecting both the transported load and the structural integrity of the truck or trailer.

Our selection of spare parts is aimed at transport professionals and fleet managers who require efficient replacement solutions. Here you will find options compatible with the leading suspension systems on the market, facilitating the corrective maintenance necessary to avoid unexpected downtime and maximize the operational performance of your heavy-duty vehicles.

How to choose the correct air bellows

• OEM reference: Locate the original part number or the manufacturer’s cross-reference to ensure full compatibility.
• Axle identification: Verify the brand and model of the axle (for example, BPW, SAF or ROR) where the part will be installed.
• Mounting type: Confirm whether you need the complete assembly with base and top plate, or only the rubber part (diapress).
• Technical specifications: Check the maximum and minimum height measurements and the diameter of the mounting base.
• Load capacity: Ensure that the replacement part meets the weight and working pressure requirements of your vehicle.

Frequently Asked Questions

What is the main function of suspension bellows?

Air springs or bellows act as an air-based spring that supports the vehicle’s weight. Their function is to isolate the chassis from road vibrations and allow height regulation, improving stability and protecting the cargo during transport.

When should I replace a suspension bellows?

Replacement is recommended if cracks appear on the rubber surface, visible deformations are present, or air leaks are detected. Preventive maintenance prevents the compressor from overworking and avoids major damage to other components of the pneumatic system.

Are these spare parts compatible with any truck?

No, each vehicle and axle requires a specific model. Although they may look similar visually, dimensions and mounting points vary. It is essential to validate compatibility using the technical data sheet or the reference of the old replacement part before purchasing.

Do you supply bellows for trailers and semi-trailers?

Yes, this catalogue includes replacement parts designed for tractor units as well as platforms, trailers, and buses. We cover the needs of the different axles commonly used in the professional heavy transport sector.