Stop buffer
Rubber and metal bump stops are robust damping elements used in commercial vehicles to absorb impacts, harsh end-of-travel movements and strong shock forces. They consist of an elastic rubber body that is firmly connected to metal components, making them both flexible and exceptionally durable. Through the elastic deformation of the rubber, they reduce impacts, minimize noise and prevent damage to vehicle frames or attached components. As a result, bump stops contribute significantly to the service life, operational reliability, and protection of materials in commercial vehicles.
Area of application
Rubber and metal bump stops are used in commercial vehicles wherever movement needs to be limited and hard impacts need to be absorbed. In the suspension and axle areas, they limit suspension travel, protect axle bearings and the frame and cushion impacts caused by severe road irregularities. In the vehicle body, they serve as stop points for tipper bodies, cargo beds or flatbeds and prevent hard contact points between the cab, frame and attached components. In coupling and trailer systems, they reduce impact forces on tow eyes and drawbars, particularly during load changes or maneuvering. They also serve as end stops in engine and power unit mountings, reducing excessive movement. In off-road use, they protect the vehicle by absorbing extreme suspension travel and articulation forces, thereby contributing to the stability and durability of the entire vehicle.
Technical details
Rubber-and-metal bump stops consist of an elastic rubber body that is firmly attached to one or more metal plates, allowing them to remain both flexible and highly durable. The rubber component absorbs and controlls shock forces and sudden movements, while the metal elements ensure a stable attachment to the vehicle frame or other components. Technically, these buffers feature high impact and energy absorption, allowing them to effectively cushion strong end-of-travel movements. Their elastic material properties help reduce vibrations, while their robust construction can absorb multidirectional forces in the axial, radial and lateral directions. They are also resistant to weather, dirt and moisture, which is particularly advantageous in commercial vehicle applications. Thanks to their exceptional fatigue and abrasion resistance, they maintain their functionality even under intense, continuous stress. Furthermore, they feature defined spring characteristics, allowing the buffer effect to be precisely tailored to the requirements of various vehicle types and operating conditions.
Characteristics
A rubber-and-metal impact buffer used in commercial vehicles offers several key features and benefits. The elastic rubber body absorbs shocks, vibrations and hard impacts, thereby protecting vehicle components from overload and reducing noise. The integrated metal component ensures stability, a secure fit, and high load-bearing capacity, even under harsh operating conditions. Thanks to the combination of elastic and robust materials, the stop buffer reliably acts as an end stop, limits movement in a controlled manner and extends the service life of the chassis, body or powertrain components.