Rubber bumpers

In machine construction, rubber bumpers guarantee the elastic bearing of different machine elements. Rubber bumpers and dampers are used in areas where working machines create vibrations, in order to dampen the emanating vibrations. This prevents the vibrations of the machines from having a disturbing or dangerous impact on the operating process and resulting in any damages. Furthermore, rubber dampers also dampen noise, which is caused by the vibrations of a machine. The many different materials and configurations of rubber bumpers in the MISUMI ranges makes it possible to coordinate rubber bumpers with various different application scenarios very well. Thus, they can be used in the electrical industry as well as in printing shops or light machine construction.

Different forms and types of rubber bumpers

The MISUMI ranges offers different forms and types of rubber bumpers. These are designed for different types of vibrations and areas of application. Rubber bumpers with a domed peak are suitable to absorb pressure or impact loads because these forces, which are aligned vertically to an object, can be very well cushioned. Disc-shaped rubber bumpers however, a very suitable for space-saving application because they are also available in very low heights of a few mm. Furthermore, MISUMI offers rubber bumpers with outer and internal threads. These shorten the assembly period significantly and furthermore, are ~20% more space-saving than a combination of damper, screw and sleeve.

Rubber bumper: Material and hardness

In the selection of the rubber bumper, the material plays a very important role because it is one of the main factors for the later degree of hardness of the rubber bumper. A material with a low degree of hardness (Shore A15), e.g., soft polyurethane rubber, ensures a particularly high shock resistance of the rubber bumper. The MISUMI range has various different materials with a Shore-hardness from up to A90.

A selection of materials used by MISUMI for rubber bumpers:

  • Nitrile rubber
  • Chloroprene rubber
  • Hard rubber
  • Silicone rubber
  • Fluororubber
  • Ester polyurethane
  • Ether polyurethane

More information on material, hardness and colour of the rubber bumpers and dampers can be derived from the MISUMI catalogue.

Outstanding shock absorption