*3.7.4 Help isolate the body from road noise*

Suspension bearing connects the suspension system with the vehicle body so any noise or undulation coming from the system results in noise. The bearing should be capable to isolate such noise from the vehicle body. A non-metallic bearing body is one of the ways to achieve this function.

In general, bearings play a significant role in vital aggregates to achieve the intended objective of modern automobiles. A deeper understanding of technical requirements and intended functions help bearing engineering to provide the most appropriate solutions which optimizes vehicle performance.

**Figure 12** summarizes the requirements of bearings in modern automobiles and available options to achieve the same.

Refer to the discussions of the last section it can be observed that bearings requirements are driving trouble-free operations, longer service life, the lower

#### **Figure 12.** *Bearing requirements and means to achieve in bearings.*

## *Advanced Applications of Hydrogen and Engineering Systems in the Automotive Industry*

total cost of ownership, compact construction, lower friction, noise, better sealing performance as well as integrated functions.

Bearing engineers achieve these requirements in the right proportionately blending and integrating engineering know-how of different bearing materials, manufacturing processes like heat treatment, surface finishes, and geometries. Long service life functions are achieved with lubricants, better sealing in addition to optimized geometries and design parameters. Integrated functions and applicationspecific solutions make bearing versatile with few additional features to be used for multiple applications.
